mirror of
https://github.com/php/php-src.git
synced 2024-12-23 16:59:20 +08:00
7486 lines
252 KiB
C
7486 lines
252 KiB
C
/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) 1998-2014 Zend Technologies Ltd. (http://www.zend.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.00 of the Zend license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.zend.com/license/2_00.txt. |
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| If you did not receive a copy of the Zend license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@zend.com so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Andi Gutmans <andi@zend.com> |
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| Zeev Suraski <zeev@zend.com> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#include <zend_language_parser.h>
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#include "zend.h"
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#include "zend_compile.h"
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#include "zend_constants.h"
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#include "zend_llist.h"
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#include "zend_API.h"
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#include "zend_exceptions.h"
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#include "zend_virtual_cwd.h"
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#include "zend_multibyte.h"
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#include "zend_language_scanner.h"
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#define CONSTANT_EX(op_array, op) \
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(op_array)->literals[op].constant
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#define CONSTANT(op) \
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CONSTANT_EX(CG(active_op_array), op)
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#define SET_NODE(target, src) do { \
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target ## _type = (src)->op_type; \
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if ((src)->op_type == IS_CONST) { \
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target.constant = zend_add_literal(CG(active_op_array), &(src)->u.constant TSRMLS_CC); \
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} else { \
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target = (src)->u.op; \
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} \
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} while (0)
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#define GET_NODE(target, src) do { \
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(target)->op_type = src ## _type; \
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if ((target)->op_type == IS_CONST) { \
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(target)->u.constant = CONSTANT(src.constant); \
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} else { \
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(target)->u.op = src; \
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(target)->EA = 0; \
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} \
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} while (0)
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#define COPY_NODE(target, src) do { \
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target ## _type = src ## _type; \
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target = src; \
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} while (0)
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#define GET_CACHE_SLOT(literal) do { \
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CG(active_op_array)->literals[literal].cache_slot = CG(active_op_array)->last_cache_slot++; \
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if ((CG(active_op_array)->fn_flags & ZEND_ACC_INTERACTIVE) && CG(active_op_array)->run_time_cache) { \
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CG(active_op_array)->run_time_cache = erealloc(CG(active_op_array)->run_time_cache, CG(active_op_array)->last_cache_slot * sizeof(void*)); \
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CG(active_op_array)->run_time_cache[CG(active_op_array)->last_cache_slot - 1] = NULL; \
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} \
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} while (0)
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#define POLYMORPHIC_CACHE_SLOT_SIZE 2
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#define GET_POLYMORPHIC_CACHE_SLOT(literal) do { \
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CG(active_op_array)->literals[literal].cache_slot = CG(active_op_array)->last_cache_slot; \
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CG(active_op_array)->last_cache_slot += POLYMORPHIC_CACHE_SLOT_SIZE; \
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if ((CG(active_op_array)->fn_flags & ZEND_ACC_INTERACTIVE) && CG(active_op_array)->run_time_cache) { \
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CG(active_op_array)->run_time_cache = erealloc(CG(active_op_array)->run_time_cache, CG(active_op_array)->last_cache_slot * sizeof(void*)); \
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CG(active_op_array)->run_time_cache[CG(active_op_array)->last_cache_slot - 1] = NULL; \
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CG(active_op_array)->run_time_cache[CG(active_op_array)->last_cache_slot - 2] = NULL; \
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} \
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} while (0)
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#define FREE_POLYMORPHIC_CACHE_SLOT(literal) do { \
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if (CG(active_op_array)->literals[literal].cache_slot != -1 && \
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CG(active_op_array)->literals[literal].cache_slot == \
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CG(active_op_array)->last_cache_slot - POLYMORPHIC_CACHE_SLOT_SIZE) { \
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CG(active_op_array)->literals[literal].cache_slot = -1; \
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CG(active_op_array)->last_cache_slot -= POLYMORPHIC_CACHE_SLOT_SIZE; \
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} \
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} while (0)
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ZEND_API zend_op_array *(*zend_compile_file)(zend_file_handle *file_handle, int type TSRMLS_DC);
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ZEND_API zend_op_array *(*zend_compile_string)(zval *source_string, char *filename TSRMLS_DC);
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#ifndef ZTS
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ZEND_API zend_compiler_globals compiler_globals;
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ZEND_API zend_executor_globals executor_globals;
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#endif
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static void zend_duplicate_property_info(zend_property_info *property_info) /* {{{ */
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{
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STR_ADDREF(property_info->name);
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if (property_info->doc_comment) {
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STR_ADDREF(property_info->doc_comment);
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}
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}
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/* }}} */
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static void zend_duplicate_property_info_zval(zval *zv) /* {{{ */
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{
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zend_property_info* property_info = emalloc(sizeof(zend_property_info));
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memcpy(property_info, Z_PTR_P(zv), sizeof(zend_property_info));
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Z_PTR_P(zv) = property_info;
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zend_duplicate_property_info(property_info);
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}
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/* }}} */
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static void zend_duplicate_property_info_internal(zend_property_info *property_info) /* {{{ */
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{
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STR_ADDREF(property_info->name);
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}
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/* }}} */
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static void zend_duplicate_property_info_internal_zval(zval *zv) /* {{{ */
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{
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zend_property_info* property_info = pemalloc(sizeof(zend_property_info), 1);
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memcpy(property_info, Z_PTR_P(zv), sizeof(zend_property_info));
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Z_PTR_P(zv) = property_info;
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zend_duplicate_property_info_internal(property_info);
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}
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/* }}} */
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static void zend_destroy_property_info(zval *zv) /* {{{ */
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{
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zend_property_info *property_info = Z_PTR_P(zv);
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STR_RELEASE(property_info->name);
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if (property_info->doc_comment) {
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STR_RELEASE(property_info->doc_comment);
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}
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efree(property_info);
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}
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/* }}} */
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static void zend_destroy_property_info_internal(zval *zv) /* {{{ */
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{
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zend_property_info *property_info = Z_PTR_P(zv);
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STR_RELEASE(property_info->name);
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free(property_info);
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}
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/* }}} */
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static void build_runtime_defined_function_key(zval *result, const char *name, int name_length TSRMLS_DC) /* {{{ */
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{
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char char_pos_buf[32];
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uint char_pos_len;
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const char *filename;
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char_pos_len = zend_sprintf(char_pos_buf, "%p", LANG_SCNG(yy_text));
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if (CG(active_op_array)->filename) {
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filename = CG(active_op_array)->filename->val;
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} else {
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filename = "-";
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}
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/* NULL, name length, filename length, last accepting char position length */
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ZVAL_STR(result, STR_ALLOC(1+name_length+strlen(filename)+char_pos_len, 0));
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/* must be binary safe */
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Z_STRVAL_P(result)[0] = '\0';
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sprintf(Z_STRVAL_P(result)+1, "%s%s%s", name, filename, char_pos_buf);
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}
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/* }}} */
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static void init_compiler_declarables(TSRMLS_D) /* {{{ */
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{
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ZVAL_LONG(&CG(declarables).ticks, 0);
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}
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/* }}} */
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void zend_init_compiler_context(TSRMLS_D) /* {{{ */
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{
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CG(context).opcodes_size = (CG(active_op_array)->fn_flags & ZEND_ACC_INTERACTIVE) ? INITIAL_INTERACTIVE_OP_ARRAY_SIZE : INITIAL_OP_ARRAY_SIZE;
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CG(context).vars_size = 0;
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CG(context).literals_size = 0;
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CG(context).current_brk_cont = -1;
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CG(context).backpatch_count = 0;
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CG(context).nested_calls = 0;
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CG(context).used_stack = 0;
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CG(context).in_finally = 0;
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CG(context).labels = NULL;
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}
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/* }}} */
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void zend_init_compiler_data_structures(TSRMLS_D) /* {{{ */
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{
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zend_stack_init(&CG(bp_stack));
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zend_stack_init(&CG(function_call_stack));
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zend_stack_init(&CG(switch_cond_stack));
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zend_stack_init(&CG(foreach_copy_stack));
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zend_stack_init(&CG(object_stack));
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zend_stack_init(&CG(declare_stack));
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CG(active_class_entry) = NULL;
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zend_llist_init(&CG(list_llist), sizeof(list_llist_element), NULL, 0);
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zend_llist_init(&CG(dimension_llist), sizeof(int), NULL, 0);
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zend_stack_init(&CG(list_stack));
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CG(in_compilation) = 0;
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CG(start_lineno) = 0;
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ZVAL_UNDEF(&CG(current_namespace));
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CG(in_namespace) = 0;
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CG(has_bracketed_namespaces) = 0;
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CG(current_import) = NULL;
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CG(current_import_function) = NULL;
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CG(current_import_const) = NULL;
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zend_hash_init(&CG(const_filenames), 0, NULL, NULL, 0);
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init_compiler_declarables(TSRMLS_C);
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zend_stack_init(&CG(context_stack));
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CG(encoding_declared) = 0;
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}
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/* }}} */
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ZEND_API void file_handle_dtor(zend_file_handle *fh) /* {{{ */
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{
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TSRMLS_FETCH();
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zend_file_handle_dtor(fh TSRMLS_CC);
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}
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/* }}} */
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void init_compiler(TSRMLS_D) /* {{{ */
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{
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CG(active_op_array) = NULL;
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memset(&CG(context), 0, sizeof(CG(context)));
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zend_init_compiler_data_structures(TSRMLS_C);
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zend_init_rsrc_list(TSRMLS_C);
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zend_hash_init(&CG(filenames_table), 5, NULL, free_string_zval, 0);
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zend_llist_init(&CG(open_files), sizeof(zend_file_handle), (void (*)(void *)) file_handle_dtor, 0);
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CG(unclean_shutdown) = 0;
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}
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/* }}} */
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void shutdown_compiler(TSRMLS_D) /* {{{ */
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{
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zend_stack_destroy(&CG(bp_stack));
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zend_stack_destroy(&CG(function_call_stack));
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zend_stack_destroy(&CG(switch_cond_stack));
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zend_stack_destroy(&CG(foreach_copy_stack));
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zend_stack_destroy(&CG(object_stack));
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zend_stack_destroy(&CG(declare_stack));
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zend_stack_destroy(&CG(list_stack));
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zend_hash_destroy(&CG(filenames_table));
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zend_llist_destroy(&CG(open_files));
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zend_hash_destroy(&CG(const_filenames));
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zend_stack_destroy(&CG(context_stack));
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}
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/* }}} */
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ZEND_API zend_string *zend_set_compiled_filename(zend_string *new_compiled_filename TSRMLS_DC) /* {{{ */
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{
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zend_string *p;
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p = zend_hash_find_ptr(&CG(filenames_table), new_compiled_filename);
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if (p != NULL) {
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CG(compiled_filename) = p;
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return p;
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}
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p = STR_COPY(new_compiled_filename);
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zend_hash_update_ptr(&CG(filenames_table), new_compiled_filename, p);
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CG(compiled_filename) = p;
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return p;
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}
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/* }}} */
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ZEND_API void zend_restore_compiled_filename(zend_string *original_compiled_filename TSRMLS_DC) /* {{{ */
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{
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CG(compiled_filename) = original_compiled_filename;
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}
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/* }}} */
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ZEND_API zend_string *zend_get_compiled_filename(TSRMLS_D) /* {{{ */
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{
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return CG(compiled_filename);
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}
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/* }}} */
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ZEND_API int zend_get_compiled_lineno(TSRMLS_D) /* {{{ */
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{
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return CG(zend_lineno);
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}
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/* }}} */
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ZEND_API zend_bool zend_is_compiling(TSRMLS_D) /* {{{ */
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{
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return CG(in_compilation);
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}
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/* }}} */
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static zend_uint get_temporary_variable(zend_op_array *op_array) /* {{{ */
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{
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//??? return (zend_uint)(zend_uintptr_t)EX_VAR_NUM_2(0, (op_array->T)++);
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return (zend_uint)op_array->T++;
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}
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/* }}} */
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static int lookup_cv(zend_op_array *op_array, zend_string* name TSRMLS_DC) /* {{{ */{
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int i = 0;
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ulong hash_value = STR_HASH_VAL(name);
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while (i < op_array->last_var) {
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if (op_array->vars[i]->val == name->val ||
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(op_array->vars[i]->h == hash_value &&
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op_array->vars[i]->len == name->len &&
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memcmp(op_array->vars[i]->val, name->val, name->len) == 0)) {
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STR_RELEASE(name);
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return i;
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}
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i++;
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}
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i = op_array->last_var;
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op_array->last_var++;
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if (op_array->last_var > CG(context).vars_size) {
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CG(context).vars_size += 16; /* FIXME */
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op_array->vars = erealloc(op_array->vars, CG(context).vars_size * sizeof(zend_string*));
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}
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op_array->vars[i] = zend_new_interned_string(name TSRMLS_CC);
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return i;
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}
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/* }}} */
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void zend_del_literal(zend_op_array *op_array, int n) /* {{{ */
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{
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zval_dtor(&CONSTANT_EX(op_array, n));
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if (n + 1 == op_array->last_literal) {
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op_array->last_literal--;
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} else {
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ZVAL_UNDEF(&CONSTANT_EX(op_array, n));
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}
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}
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/* }}} */
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/* Common part of zend_add_literal and zend_append_individual_literal */
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static inline void zend_insert_literal(zend_op_array *op_array, zval *zv, int literal_position TSRMLS_DC) /* {{{ */
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{
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if (Z_TYPE_P(zv) == IS_STRING || Z_TYPE_P(zv) == IS_CONSTANT) {
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STR_HASH_VAL(Z_STR_P(zv));
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Z_STR_P(zv) = zend_new_interned_string(Z_STR_P(zv) TSRMLS_CC);
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}
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ZVAL_COPY_VALUE(&CONSTANT_EX(op_array, literal_position), zv);
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//??? Z_SET_REFCOUNT(CONSTANT_EX(op_array, literal_position), 2);
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//??? Z_SET_ISREF(CONSTANT_EX(op_array, literal_position));
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op_array->literals[literal_position].cache_slot = -1;
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}
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/* }}} */
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/* Is used while compiling a function, using the context to keep track
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of an approximate size to avoid to relocate to often.
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Literals are truncated to actual size in the second compiler pass (pass_two()). */
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int zend_add_literal(zend_op_array *op_array, const zval *zv TSRMLS_DC) /* {{{ */
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{
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int i = op_array->last_literal;
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op_array->last_literal++;
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if (i >= CG(context).literals_size) {
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while (i >= CG(context).literals_size) {
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CG(context).literals_size += 16; /* FIXME */
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}
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op_array->literals = (zend_literal*)erealloc(op_array->literals, CG(context).literals_size * sizeof(zend_literal));
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}
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zend_insert_literal(op_array, zv, i TSRMLS_CC);
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return i;
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}
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/* }}} */
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/* Is used after normal compilation to append an additional literal.
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Allocation is done precisely here. */
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int zend_append_individual_literal(zend_op_array *op_array, const zval *zv TSRMLS_DC) /* {{{ */
|
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{
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int i = op_array->last_literal;
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op_array->last_literal++;
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op_array->literals = (zend_literal*)erealloc(op_array->literals, (i + 1) * sizeof(zend_literal));
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zend_insert_literal(op_array, zv, i TSRMLS_CC);
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return i;
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}
|
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/* }}} */
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int zend_add_func_name_literal(zend_op_array *op_array, const zval *zv TSRMLS_DC) /* {{{ */
|
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{
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int ret;
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zend_string *lc_name;
|
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zval c;
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if (op_array->last_literal > 0 &&
|
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&op_array->literals[op_array->last_literal - 1].constant == zv &&
|
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op_array->literals[op_array->last_literal - 1].cache_slot == -1) {
|
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/* we already have function name as last literal (do nothing) */
|
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ret = op_array->last_literal - 1;
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} else {
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ret = zend_add_literal(op_array, zv TSRMLS_CC);
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}
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lc_name = STR_ALLOC(Z_STRLEN_P(zv), 0);
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zend_str_tolower_copy(lc_name->val, Z_STRVAL_P(zv), Z_STRLEN_P(zv));
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ZVAL_STR(&c, lc_name);
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zend_add_literal(CG(active_op_array), &c TSRMLS_CC);
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return ret;
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}
|
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/* }}} */
|
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|
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int zend_add_ns_func_name_literal(zend_op_array *op_array, const zval *zv TSRMLS_DC) /* {{{ */
|
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{
|
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int ret;
|
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zend_string *lc_name;
|
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const char *ns_separator;
|
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int lc_len;
|
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zval c;
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|
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if (op_array->last_literal > 0 &&
|
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&op_array->literals[op_array->last_literal - 1].constant == zv &&
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op_array->literals[op_array->last_literal - 1].cache_slot == -1) {
|
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/* we already have function name as last literal (do nothing) */
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ret = op_array->last_literal - 1;
|
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} else {
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ret = zend_add_literal(op_array, zv TSRMLS_CC);
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}
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lc_name = STR_ALLOC(Z_STRLEN_P(zv), 0);
|
|
zend_str_tolower_copy(lc_name->val, Z_STRVAL_P(zv), Z_STRLEN_P(zv));
|
|
ZVAL_STR(&c, lc_name);
|
|
zend_add_literal(CG(active_op_array), &c TSRMLS_CC);
|
|
|
|
ns_separator = (const char*)zend_memrchr(Z_STRVAL_P(zv), '\\', Z_STRLEN_P(zv));
|
|
|
|
if (ns_separator != NULL) {
|
|
ns_separator += 1;
|
|
lc_len = Z_STRLEN_P(zv) - (ns_separator - Z_STRVAL_P(zv));
|
|
lc_name = STR_ALLOC(lc_len, 0);
|
|
zend_str_tolower_copy(lc_name->val, ns_separator, lc_len);
|
|
ZVAL_STR(&c, lc_name);
|
|
zend_add_literal(CG(active_op_array), &c TSRMLS_CC);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
/* }}} */
|
|
|
|
int zend_add_class_name_literal(zend_op_array *op_array, const zval *zv TSRMLS_DC) /* {{{ */
|
|
{
|
|
int ret;
|
|
zend_string *lc_name;
|
|
zval c;
|
|
|
|
if (op_array->last_literal > 0 &&
|
|
&op_array->literals[op_array->last_literal - 1].constant == zv &&
|
|
op_array->literals[op_array->last_literal - 1].cache_slot == -1) {
|
|
/* we already have function name as last literal (do nothing) */
|
|
ret = op_array->last_literal - 1;
|
|
} else {
|
|
ret = zend_add_literal(op_array, zv TSRMLS_CC);
|
|
}
|
|
|
|
if (Z_STRVAL_P(zv)[0] == '\\') {
|
|
lc_name = STR_ALLOC(Z_STRLEN_P(zv) - 1, 0);
|
|
zend_str_tolower_copy(lc_name->val, Z_STRVAL_P(zv) + 1, Z_STRLEN_P(zv) - 1);
|
|
} else {
|
|
lc_name = STR_ALLOC(Z_STRLEN_P(zv), 0);
|
|
zend_str_tolower_copy(lc_name->val, Z_STRVAL_P(zv), Z_STRLEN_P(zv));
|
|
}
|
|
ZVAL_STR(&c, lc_name);
|
|
zend_add_literal(CG(active_op_array), &c TSRMLS_CC);
|
|
|
|
GET_CACHE_SLOT(ret);
|
|
|
|
return ret;
|
|
}
|
|
/* }}} */
|
|
|
|
int zend_add_const_name_literal(zend_op_array *op_array, const zval *zv, int unqualified TSRMLS_DC) /* {{{ */
|
|
{
|
|
int ret;
|
|
char *name;
|
|
zend_string *tmp_name;
|
|
const char *ns_separator;
|
|
int name_len, ns_len;
|
|
zval c;
|
|
|
|
if (op_array->last_literal > 0 &&
|
|
&op_array->literals[op_array->last_literal - 1].constant == zv &&
|
|
op_array->literals[op_array->last_literal - 1].cache_slot == -1) {
|
|
/* we already have function name as last literal (do nothing) */
|
|
ret = op_array->last_literal - 1;
|
|
} else {
|
|
ret = zend_add_literal(op_array, zv TSRMLS_CC);
|
|
}
|
|
|
|
/* skip leading '\\' */
|
|
if (Z_STRVAL_P(zv)[0] == '\\') {
|
|
name_len = Z_STRLEN_P(zv) - 1;
|
|
name = Z_STRVAL_P(zv) + 1;
|
|
} else {
|
|
name_len = Z_STRLEN_P(zv);
|
|
name = Z_STRVAL_P(zv);
|
|
}
|
|
ns_separator = zend_memrchr(name, '\\', name_len);
|
|
if (ns_separator) {
|
|
ns_len = ns_separator - name;
|
|
} else {
|
|
ns_len = 0;
|
|
}
|
|
|
|
if (ns_len) {
|
|
/* lowercased namespace name & original constant name */
|
|
tmp_name = STR_INIT(name, name_len, 0);
|
|
zend_str_tolower(tmp_name->val, ns_len);
|
|
ZVAL_STR(&c, tmp_name);
|
|
zend_add_literal(CG(active_op_array), &c TSRMLS_CC);
|
|
|
|
/* lowercased namespace name & lowercased constant name */
|
|
tmp_name = STR_ALLOC(name_len, 0);
|
|
zend_str_tolower_copy(tmp_name->val, name, name_len);
|
|
ZVAL_STR(&c, tmp_name);
|
|
zend_add_literal(CG(active_op_array), &c TSRMLS_CC);
|
|
}
|
|
|
|
if (ns_len) {
|
|
if (!unqualified) {
|
|
return ret;
|
|
}
|
|
ns_len++;
|
|
name += ns_len;
|
|
name_len -= ns_len;
|
|
}
|
|
|
|
/* original constant name */
|
|
tmp_name = STR_INIT(name, name_len, 0);
|
|
ZVAL_STR(&c, tmp_name);
|
|
zend_add_literal(CG(active_op_array), &c TSRMLS_CC);
|
|
|
|
/* lowercased constant name */
|
|
tmp_name = STR_ALLOC(name_len, 0);
|
|
zend_str_tolower_copy(tmp_name->val, name, name_len);
|
|
ZVAL_STR(&c, tmp_name);
|
|
zend_add_literal(CG(active_op_array), &c TSRMLS_CC);
|
|
|
|
return ret;
|
|
}
|
|
/* }}} */
|
|
|
|
#define LITERAL_STR(op, str) do { \
|
|
zval _c; \
|
|
ZVAL_STR(&_c, str); \
|
|
op.constant = zend_add_literal(CG(active_op_array), &_c TSRMLS_CC); \
|
|
} while (0)
|
|
|
|
#define LITERAL_STRINGL(op, str, len) do { \
|
|
zval _c; \
|
|
ZVAL_STRINGL(&_c, str, len); \
|
|
op.constant = zend_add_literal(CG(active_op_array), &_c TSRMLS_CC); \
|
|
} while (0)
|
|
|
|
#define LITERAL_LONG(op, val) do { \
|
|
zval _c; \
|
|
ZVAL_LONG(&_c, val); \
|
|
op.constant = zend_add_literal(CG(active_op_array), &_c TSRMLS_CC); \
|
|
} while (0)
|
|
|
|
#define LITERAL_LONG_EX(op_array, op, val) do { \
|
|
zval _c; \
|
|
ZVAL_LONG(&_c, val); \
|
|
op.constant = zend_add_literal(op_array, &_c TSRMLS_CC); \
|
|
} while (0)
|
|
|
|
#define LITERAL_NULL(op) do { \
|
|
zval _c; \
|
|
ZVAL_NULL(&_c); \
|
|
op.constant = zend_add_literal(CG(active_op_array), &_c TSRMLS_CC); \
|
|
} while (0)
|
|
|
|
static inline zend_bool zend_is_function_or_method_call(const znode *variable) /* {{{ */
|
|
{
|
|
zend_uint type = variable->EA;
|
|
|
|
return ((type & ZEND_PARSED_METHOD_CALL) || (type == ZEND_PARSED_FUNCTION_CALL));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_binary_op(zend_uchar op, znode *result, const znode *op1, const znode *op2 TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = op;
|
|
opline->result_type = IS_TMP_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
SET_NODE(opline->op1, op1);
|
|
SET_NODE(opline->op2, op2);
|
|
GET_NODE(result, opline->result);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_unary_op(zend_uchar op, znode *result, const znode *op1 TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = op;
|
|
opline->result_type = IS_TMP_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
SET_NODE(opline->op1, op1);
|
|
GET_NODE(result, opline->result);
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
/* }}} */
|
|
|
|
#define MAKE_NOP(opline) { opline->opcode = ZEND_NOP; memset(&opline->result,0,sizeof(opline->result)); memset(&opline->op1,0,sizeof(opline->op1)); memset(&opline->op2,0,sizeof(opline->op2)); opline->result_type=opline->op1_type=opline->op2_type=IS_UNUSED; }
|
|
|
|
static void zend_do_op_data(zend_op *data_op, const znode *value TSRMLS_DC) /* {{{ */
|
|
{
|
|
data_op->opcode = ZEND_OP_DATA;
|
|
SET_NODE(data_op->op1, value);
|
|
SET_UNUSED(data_op->op2);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_binary_assign_op(zend_uchar op, znode *result, const znode *op1, const znode *op2 TSRMLS_DC) /* {{{ */
|
|
{
|
|
int last_op_number = get_next_op_number(CG(active_op_array));
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
if (last_op_number > 0) {
|
|
zend_op *last_op = &CG(active_op_array)->opcodes[last_op_number-1];
|
|
|
|
switch (last_op->opcode) {
|
|
case ZEND_FETCH_OBJ_RW:
|
|
last_op->opcode = op;
|
|
last_op->extended_value = ZEND_ASSIGN_OBJ;
|
|
|
|
zend_do_op_data(opline, op2 TSRMLS_CC);
|
|
SET_UNUSED(opline->result);
|
|
GET_NODE(result, last_op->result);
|
|
return;
|
|
case ZEND_FETCH_DIM_RW:
|
|
last_op->opcode = op;
|
|
last_op->extended_value = ZEND_ASSIGN_DIM;
|
|
|
|
zend_do_op_data(opline, op2 TSRMLS_CC);
|
|
opline->op2.var = get_temporary_variable(CG(active_op_array));
|
|
opline->op2_type = IS_VAR;
|
|
SET_UNUSED(opline->result);
|
|
GET_NODE(result,last_op->result);
|
|
return;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
opline->opcode = op;
|
|
SET_NODE(opline->op1, op1);
|
|
SET_NODE(opline->op2, op2);
|
|
opline->result_type = IS_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
GET_NODE(result, opline->result);
|
|
}
|
|
/* }}} */
|
|
|
|
void fetch_simple_variable_ex(znode *result, znode *varname, int bp, zend_uchar op TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op opline;
|
|
zend_op *opline_ptr;
|
|
zend_llist *fetch_list_ptr;
|
|
|
|
if (varname->op_type == IS_CONST) {
|
|
if (Z_TYPE(varname->u.constant) != IS_STRING) {
|
|
convert_to_string(&varname->u.constant);
|
|
}
|
|
|
|
if (!zend_is_auto_global(Z_STR(varname->u.constant) TSRMLS_CC) &&
|
|
!(Z_STRLEN(varname->u.constant) == (sizeof("this")-1) &&
|
|
!memcmp(Z_STRVAL(varname->u.constant), "this", sizeof("this") - 1)) &&
|
|
(CG(active_op_array)->last == 0 ||
|
|
CG(active_op_array)->opcodes[CG(active_op_array)->last-1].opcode != ZEND_BEGIN_SILENCE)) {
|
|
result->op_type = IS_CV;
|
|
result->u.op.var = lookup_cv(CG(active_op_array), Z_STR(varname->u.constant) TSRMLS_CC);
|
|
Z_STR(varname->u.constant) = CG(active_op_array)->vars[result->u.op.var];
|
|
result->EA = 0;
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (bp) {
|
|
opline_ptr = &opline;
|
|
init_op(opline_ptr TSRMLS_CC);
|
|
} else {
|
|
opline_ptr = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
}
|
|
|
|
opline_ptr->opcode = op;
|
|
opline_ptr->result_type = IS_VAR;
|
|
opline_ptr->result.var = get_temporary_variable(CG(active_op_array));
|
|
SET_NODE(opline_ptr->op1, varname);
|
|
GET_NODE(result, opline_ptr->result);
|
|
SET_UNUSED(opline_ptr->op2);
|
|
opline_ptr->extended_value = ZEND_FETCH_LOCAL;
|
|
|
|
if (varname->op_type == IS_CONST) {
|
|
if (zend_is_auto_global(Z_STR(varname->u.constant) TSRMLS_CC)) {
|
|
opline_ptr->extended_value = ZEND_FETCH_GLOBAL;
|
|
}
|
|
}
|
|
|
|
if (bp) {
|
|
zend_stack_top(&CG(bp_stack), (void **) &fetch_list_ptr);
|
|
zend_llist_add_element(fetch_list_ptr, opline_ptr);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void fetch_simple_variable(znode *result, znode *varname, int bp TSRMLS_DC) /* {{{ */
|
|
{
|
|
/* the default mode must be Write, since fetch_simple_variable() is used to define function arguments */
|
|
fetch_simple_variable_ex(result, varname, bp, ZEND_FETCH_W TSRMLS_CC);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_fetch_static_member(znode *result, znode *class_name TSRMLS_DC) /* {{{ */
|
|
{
|
|
znode class_node;
|
|
zend_llist *fetch_list_ptr;
|
|
zend_llist_element *le;
|
|
zend_op *opline_ptr;
|
|
zend_op opline;
|
|
|
|
if (class_name->op_type == IS_CONST &&
|
|
ZEND_FETCH_CLASS_DEFAULT == zend_get_class_fetch_type(Z_STRVAL(class_name->u.constant), Z_STRLEN(class_name->u.constant))) {
|
|
zend_resolve_class_name(class_name TSRMLS_CC);
|
|
class_node = *class_name;
|
|
} else {
|
|
zend_do_fetch_class(&class_node, class_name TSRMLS_CC);
|
|
}
|
|
zend_stack_top(&CG(bp_stack), (void **) &fetch_list_ptr);
|
|
if (result->op_type == IS_CV) {
|
|
init_op(&opline TSRMLS_CC);
|
|
|
|
opline.opcode = ZEND_FETCH_W;
|
|
opline.result_type = IS_VAR;
|
|
opline.result.var = get_temporary_variable(CG(active_op_array));
|
|
opline.op1_type = IS_CONST;
|
|
LITERAL_STR(opline.op1, STR_COPY(CG(active_op_array)->vars[result->u.op.var]));
|
|
GET_POLYMORPHIC_CACHE_SLOT(opline.op1.constant);
|
|
if (class_node.op_type == IS_CONST) {
|
|
opline.op2_type = IS_CONST;
|
|
opline.op2.constant =
|
|
zend_add_class_name_literal(CG(active_op_array), &class_node.u.constant TSRMLS_CC);
|
|
} else {
|
|
SET_NODE(opline.op2, &class_node);
|
|
}
|
|
GET_NODE(result,opline.result);
|
|
opline.extended_value |= ZEND_FETCH_STATIC_MEMBER;
|
|
opline_ptr = &opline;
|
|
|
|
zend_llist_add_element(fetch_list_ptr, &opline);
|
|
} else {
|
|
le = fetch_list_ptr->head;
|
|
|
|
opline_ptr = (zend_op *)le->data;
|
|
if (opline_ptr->opcode != ZEND_FETCH_W && opline_ptr->op1_type == IS_CV) {
|
|
init_op(&opline TSRMLS_CC);
|
|
opline.opcode = ZEND_FETCH_W;
|
|
opline.result_type = IS_VAR;
|
|
opline.result.var = get_temporary_variable(CG(active_op_array));
|
|
opline.op1_type = IS_CONST;
|
|
LITERAL_STR(opline.op1, STR_COPY(CG(active_op_array)->vars[opline_ptr->op1.var]));
|
|
GET_POLYMORPHIC_CACHE_SLOT(opline.op1.constant);
|
|
if (class_node.op_type == IS_CONST) {
|
|
opline.op2_type = IS_CONST;
|
|
opline.op2.constant =
|
|
zend_add_class_name_literal(CG(active_op_array), &class_node.u.constant TSRMLS_CC);
|
|
} else {
|
|
SET_NODE(opline.op2, &class_node);
|
|
}
|
|
opline.extended_value |= ZEND_FETCH_STATIC_MEMBER;
|
|
COPY_NODE(opline_ptr->op1, opline.result);
|
|
|
|
zend_llist_prepend_element(fetch_list_ptr, &opline);
|
|
} else {
|
|
if (opline_ptr->op1_type == IS_CONST) {
|
|
GET_POLYMORPHIC_CACHE_SLOT(opline_ptr->op1.constant);
|
|
}
|
|
if (class_node.op_type == IS_CONST) {
|
|
opline_ptr->op2_type = IS_CONST;
|
|
opline_ptr->op2.constant =
|
|
zend_add_class_name_literal(CG(active_op_array), &class_node.u.constant TSRMLS_CC);
|
|
} else {
|
|
SET_NODE(opline_ptr->op2, &class_node);
|
|
}
|
|
opline_ptr->extended_value |= ZEND_FETCH_STATIC_MEMBER;
|
|
}
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void fetch_array_begin(znode *result, znode *varname, znode *first_dim TSRMLS_DC) /* {{{ */
|
|
{
|
|
fetch_simple_variable(result, varname, 1 TSRMLS_CC);
|
|
|
|
fetch_array_dim(result, result, first_dim TSRMLS_CC);
|
|
}
|
|
/* }}} */
|
|
|
|
void fetch_array_dim(znode *result, const znode *parent, const znode *dim TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op opline;
|
|
zend_llist *fetch_list_ptr;
|
|
|
|
zend_stack_top(&CG(bp_stack), (void **) &fetch_list_ptr);
|
|
|
|
if (zend_is_function_or_method_call(parent)) {
|
|
init_op(&opline TSRMLS_CC);
|
|
opline.opcode = ZEND_SEPARATE;
|
|
SET_NODE(opline.op1, parent);
|
|
SET_UNUSED(opline.op2);
|
|
opline.result_type = IS_VAR;
|
|
opline.result.var = opline.op1.var;
|
|
zend_llist_add_element(fetch_list_ptr, &opline);
|
|
}
|
|
|
|
init_op(&opline TSRMLS_CC);
|
|
opline.opcode = ZEND_FETCH_DIM_W; /* the backpatching routine assumes W */
|
|
opline.result_type = IS_VAR;
|
|
opline.result.var = get_temporary_variable(CG(active_op_array));
|
|
SET_NODE(opline.op1, parent);
|
|
SET_NODE(opline.op2, dim);
|
|
if (opline.op2_type == IS_CONST && Z_TYPE(CONSTANT(opline.op2.constant)) == IS_STRING) {
|
|
ulong index;
|
|
int numeric = 0;
|
|
|
|
ZEND_HANDLE_NUMERIC_EX(Z_STRVAL(CONSTANT(opline.op2.constant)), Z_STRLEN(CONSTANT(opline.op2.constant))+1, index, numeric = 1);
|
|
if (numeric) {
|
|
zval_dtor(&CONSTANT(opline.op2.constant));
|
|
ZVAL_LONG(&CONSTANT(opline.op2.constant), index);
|
|
}
|
|
}
|
|
|
|
GET_NODE(result, opline.result);
|
|
|
|
zend_llist_add_element(fetch_list_ptr, &opline);
|
|
}
|
|
/* }}} */
|
|
|
|
void fetch_string_offset(znode *result, const znode *parent, const znode *offset TSRMLS_DC) /* {{{ */
|
|
{
|
|
fetch_array_dim(result, parent, offset TSRMLS_CC);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_print(znode *result, const znode *arg TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->result_type = IS_TMP_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
opline->opcode = ZEND_PRINT;
|
|
SET_NODE(opline->op1, arg);
|
|
SET_UNUSED(opline->op2);
|
|
GET_NODE(result, opline->result);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_echo(const znode *arg TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_ECHO;
|
|
SET_NODE(opline->op1, arg);
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_abstract_method(const znode *function_name, znode *modifiers, const znode *body TSRMLS_DC) /* {{{ */
|
|
{
|
|
char *method_type;
|
|
|
|
if (CG(active_class_entry)->ce_flags & ZEND_ACC_INTERFACE) {
|
|
Z_LVAL(modifiers->u.constant) |= ZEND_ACC_ABSTRACT;
|
|
method_type = "Interface";
|
|
} else {
|
|
method_type = "Abstract";
|
|
}
|
|
|
|
if (Z_LVAL(modifiers->u.constant) & ZEND_ACC_ABSTRACT) {
|
|
if(Z_LVAL(modifiers->u.constant) & ZEND_ACC_PRIVATE) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "%s function %s::%s() cannot be declared private", method_type, CG(active_class_entry)->name, Z_STRVAL(function_name->u.constant));
|
|
}
|
|
if (Z_LVAL(body->u.constant) == ZEND_ACC_ABSTRACT) {
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_RAISE_ABSTRACT_ERROR;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
} else {
|
|
/* we had code in the function body */
|
|
zend_error_noreturn(E_COMPILE_ERROR, "%s function %s::%s() cannot contain body", method_type, CG(active_class_entry)->name, Z_STRVAL(function_name->u.constant));
|
|
}
|
|
} else {
|
|
if (Z_LVAL(body->u.constant) == ZEND_ACC_ABSTRACT) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Non-abstract method %s::%s() must contain body", CG(active_class_entry)->name, Z_STRVAL(function_name->u.constant));
|
|
}
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
static zend_bool opline_is_fetch_this(const zend_op *opline TSRMLS_DC) /* {{{ */
|
|
{
|
|
if ((opline->opcode == ZEND_FETCH_W) && (opline->op1_type == IS_CONST)
|
|
&& (Z_TYPE(CONSTANT(opline->op1.constant)) == IS_STRING)
|
|
&& ((opline->extended_value & ZEND_FETCH_STATIC_MEMBER) != ZEND_FETCH_STATIC_MEMBER)
|
|
&& (Z_STRHASH(CONSTANT(opline->op1.constant)) == THIS_HASHVAL)
|
|
&& (Z_STRLEN(CONSTANT(opline->op1.constant)) == (sizeof("this")-1))
|
|
&& !memcmp(Z_STRVAL(CONSTANT(opline->op1.constant)), "this", sizeof("this") - 1)) {
|
|
return 1;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_assign(znode *result, znode *variable, znode *value TSRMLS_DC) /* {{{ */
|
|
{
|
|
int last_op_number;
|
|
zend_op *opline;
|
|
|
|
if (value->op_type == IS_CV) {
|
|
zend_llist *fetch_list_ptr;
|
|
|
|
zend_stack_top(&CG(bp_stack), (void **) &fetch_list_ptr);
|
|
if (fetch_list_ptr && fetch_list_ptr->head) {
|
|
opline = (zend_op *)fetch_list_ptr->head->data;
|
|
|
|
if (opline->opcode == ZEND_FETCH_DIM_W &&
|
|
opline->op1_type == IS_CV &&
|
|
opline->op1.var == value->u.op.var) {
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_FETCH_R;
|
|
opline->result_type = IS_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
opline->op1_type = IS_CONST;
|
|
LITERAL_STR(opline->op1,
|
|
STR_COPY(CG(active_op_array)->vars[value->u.op.var]));
|
|
SET_UNUSED(opline->op2);
|
|
opline->extended_value = ZEND_FETCH_LOCAL;
|
|
GET_NODE(value, opline->result);
|
|
}
|
|
}
|
|
}
|
|
|
|
zend_do_end_variable_parse(variable, BP_VAR_W, 0 TSRMLS_CC);
|
|
|
|
last_op_number = get_next_op_number(CG(active_op_array));
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
if (variable->op_type == IS_CV) {
|
|
if (variable->u.op.var == CG(active_op_array)->this_var) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot re-assign $this");
|
|
}
|
|
} else if (variable->op_type == IS_VAR) {
|
|
int n = 0;
|
|
|
|
while (last_op_number - n > 0) {
|
|
zend_op *last_op;
|
|
|
|
last_op = &CG(active_op_array)->opcodes[last_op_number-n-1];
|
|
|
|
if (last_op->result_type == IS_VAR &&
|
|
last_op->result.var == variable->u.op.var) {
|
|
if (last_op->opcode == ZEND_FETCH_OBJ_W) {
|
|
if (n > 0) {
|
|
int opline_no = (opline-CG(active_op_array)->opcodes)/sizeof(*opline);
|
|
*opline = *last_op;
|
|
MAKE_NOP(last_op);
|
|
/* last_op = opline; */
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
/* get_next_op can realloc, we need to move last_op */
|
|
last_op = &CG(active_op_array)->opcodes[opline_no];
|
|
}
|
|
last_op->opcode = ZEND_ASSIGN_OBJ;
|
|
zend_do_op_data(opline, value TSRMLS_CC);
|
|
SET_UNUSED(opline->result);
|
|
GET_NODE(result, last_op->result);
|
|
return;
|
|
} else if (last_op->opcode == ZEND_FETCH_DIM_W) {
|
|
if (n > 0) {
|
|
int opline_no = (opline-CG(active_op_array)->opcodes)/sizeof(*opline);
|
|
*opline = *last_op;
|
|
MAKE_NOP(last_op);
|
|
/* last_op = opline; */
|
|
/* TBFixed: this can realloc opcodes, leaving last_op pointing wrong */
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
/* get_next_op can realloc, we need to move last_op */
|
|
last_op = &CG(active_op_array)->opcodes[opline_no];
|
|
}
|
|
last_op->opcode = ZEND_ASSIGN_DIM;
|
|
zend_do_op_data(opline, value TSRMLS_CC);
|
|
opline->op2.var = get_temporary_variable(CG(active_op_array));
|
|
opline->op2_type = IS_VAR;
|
|
SET_UNUSED(opline->result);
|
|
GET_NODE(result, last_op->result);
|
|
return;
|
|
} else if (opline_is_fetch_this(last_op TSRMLS_CC)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot re-assign $this");
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
n++;
|
|
}
|
|
}
|
|
|
|
opline->opcode = ZEND_ASSIGN;
|
|
SET_NODE(opline->op1, variable);
|
|
SET_NODE(opline->op2, value);
|
|
opline->result_type = IS_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
GET_NODE(result, opline->result);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_assign_ref(znode *result, const znode *lvar, const znode *rvar TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
|
|
if (lvar->op_type == IS_CV) {
|
|
if (lvar->u.op.var == CG(active_op_array)->this_var) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot re-assign $this");
|
|
}
|
|
} else if (lvar->op_type == IS_VAR) {
|
|
int last_op_number = get_next_op_number(CG(active_op_array));
|
|
|
|
if (last_op_number > 0) {
|
|
opline = &CG(active_op_array)->opcodes[last_op_number-1];
|
|
if (opline_is_fetch_this(opline TSRMLS_CC)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot re-assign $this");
|
|
}
|
|
}
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_ASSIGN_REF;
|
|
if (zend_is_function_or_method_call(rvar)) {
|
|
opline->extended_value = ZEND_RETURNS_FUNCTION;
|
|
} else if (rvar->EA & ZEND_PARSED_NEW) {
|
|
opline->extended_value = ZEND_RETURNS_NEW;
|
|
} else {
|
|
opline->extended_value = 0;
|
|
}
|
|
if (result) {
|
|
opline->result_type = IS_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
GET_NODE(result, opline->result);
|
|
} else {
|
|
opline->result_type = IS_UNUSED | EXT_TYPE_UNUSED;
|
|
}
|
|
SET_NODE(opline->op1, lvar);
|
|
SET_NODE(opline->op2, rvar);
|
|
}
|
|
/* }}} */
|
|
|
|
static inline void do_begin_loop(TSRMLS_D) /* {{{ */
|
|
{
|
|
zend_brk_cont_element *brk_cont_element;
|
|
int parent;
|
|
|
|
parent = CG(context).current_brk_cont;
|
|
CG(context).current_brk_cont = CG(active_op_array)->last_brk_cont;
|
|
brk_cont_element = get_next_brk_cont_element(CG(active_op_array));
|
|
brk_cont_element->start = get_next_op_number(CG(active_op_array));
|
|
brk_cont_element->parent = parent;
|
|
}
|
|
/* }}} */
|
|
|
|
static inline void do_end_loop(int cont_addr, int has_loop_var TSRMLS_DC) /* {{{ */
|
|
{
|
|
if (!has_loop_var) {
|
|
/* The start fileld is used to free temporary variables in case of exceptions.
|
|
* We won't try to free something of we don't have loop variable.
|
|
*/
|
|
CG(active_op_array)->brk_cont_array[CG(context).current_brk_cont].start = -1;
|
|
}
|
|
CG(active_op_array)->brk_cont_array[CG(context).current_brk_cont].cont = cont_addr;
|
|
CG(active_op_array)->brk_cont_array[CG(context).current_brk_cont].brk = get_next_op_number(CG(active_op_array));
|
|
CG(context).current_brk_cont = CG(active_op_array)->brk_cont_array[CG(context).current_brk_cont].parent;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_while_cond(const znode *expr, znode *close_bracket_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
int while_cond_op_number = get_next_op_number(CG(active_op_array));
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_JMPZ;
|
|
SET_NODE(opline->op1, expr);
|
|
close_bracket_token->u.op.opline_num = while_cond_op_number;
|
|
SET_UNUSED(opline->op2);
|
|
|
|
do_begin_loop(TSRMLS_C);
|
|
INC_BPC(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_while_end(const znode *while_token, const znode *close_bracket_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
/* add unconditional jump */
|
|
opline->opcode = ZEND_JMP;
|
|
opline->op1.opline_num = while_token->u.op.opline_num;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
|
|
/* update while's conditional jmp */
|
|
CG(active_op_array)->opcodes[close_bracket_token->u.op.opline_num].op2.opline_num = get_next_op_number(CG(active_op_array));
|
|
|
|
do_end_loop(while_token->u.op.opline_num, 0 TSRMLS_CC);
|
|
|
|
DEC_BPC(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_for_cond(const znode *expr, znode *second_semicolon_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
int for_cond_op_number = get_next_op_number(CG(active_op_array));
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_JMPZNZ;
|
|
SET_NODE(opline->op1, expr); /* the conditional expression */
|
|
second_semicolon_token->u.op.opline_num = for_cond_op_number;
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_for_before_statement(const znode *cond_start, const znode *second_semicolon_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_JMP;
|
|
opline->op1.opline_num = cond_start->u.op.opline_num;
|
|
CG(active_op_array)->opcodes[second_semicolon_token->u.op.opline_num].extended_value = get_next_op_number(CG(active_op_array));
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
|
|
do_begin_loop(TSRMLS_C);
|
|
|
|
INC_BPC(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_for_end(const znode *second_semicolon_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_JMP;
|
|
opline->op1.opline_num = second_semicolon_token->u.op.opline_num+1;
|
|
CG(active_op_array)->opcodes[second_semicolon_token->u.op.opline_num].op2.opline_num = get_next_op_number(CG(active_op_array));
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
|
|
do_end_loop(second_semicolon_token->u.op.opline_num+1, 0 TSRMLS_CC);
|
|
|
|
DEC_BPC(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_pre_incdec(znode *result, const znode *op1, zend_uchar op TSRMLS_DC) /* {{{ */
|
|
{
|
|
int last_op_number = get_next_op_number(CG(active_op_array));
|
|
zend_op *opline;
|
|
|
|
if (last_op_number > 0) {
|
|
zend_op *last_op = &CG(active_op_array)->opcodes[last_op_number-1];
|
|
|
|
if (last_op->opcode == ZEND_FETCH_OBJ_RW) {
|
|
last_op->opcode = (op==ZEND_PRE_INC)?ZEND_PRE_INC_OBJ:ZEND_PRE_DEC_OBJ;
|
|
last_op->result_type = IS_VAR;
|
|
last_op->result.var = get_temporary_variable(CG(active_op_array));
|
|
GET_NODE(result, last_op->result);
|
|
return;
|
|
}
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = op;
|
|
SET_NODE(opline->op1, op1);
|
|
SET_UNUSED(opline->op2);
|
|
opline->result_type = IS_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
GET_NODE(result, opline->result);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_post_incdec(znode *result, const znode *op1, zend_uchar op TSRMLS_DC) /* {{{ */
|
|
{
|
|
int last_op_number = get_next_op_number(CG(active_op_array));
|
|
zend_op *opline;
|
|
|
|
if (last_op_number > 0) {
|
|
zend_op *last_op = &CG(active_op_array)->opcodes[last_op_number-1];
|
|
|
|
if (last_op->opcode == ZEND_FETCH_OBJ_RW) {
|
|
last_op->opcode = (op==ZEND_POST_INC)?ZEND_POST_INC_OBJ:ZEND_POST_DEC_OBJ;
|
|
last_op->result_type = IS_TMP_VAR;
|
|
last_op->result.var = get_temporary_variable(CG(active_op_array));
|
|
GET_NODE(result, last_op->result);
|
|
return;
|
|
}
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = op;
|
|
SET_NODE(opline->op1, op1);
|
|
SET_UNUSED(opline->op2);
|
|
opline->result_type = IS_TMP_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
GET_NODE(result, opline->result);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_if_cond(const znode *cond, znode *closing_bracket_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
int if_cond_op_number = get_next_op_number(CG(active_op_array));
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_JMPZ;
|
|
SET_NODE(opline->op1, cond);
|
|
closing_bracket_token->u.op.opline_num = if_cond_op_number;
|
|
SET_UNUSED(opline->op2);
|
|
INC_BPC(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_if_after_statement(const znode *closing_bracket_token, unsigned char initialize TSRMLS_DC) /* {{{ */
|
|
{
|
|
int if_end_op_number = get_next_op_number(CG(active_op_array));
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
zend_llist *jmp_list_ptr;
|
|
|
|
opline->opcode = ZEND_JMP;
|
|
/* save for backpatching */
|
|
if (initialize) {
|
|
zend_llist jmp_list;
|
|
|
|
zend_llist_init(&jmp_list, sizeof(int), NULL, 0);
|
|
zend_stack_push(&CG(bp_stack), (void *) &jmp_list, sizeof(zend_llist));
|
|
}
|
|
zend_stack_top(&CG(bp_stack), (void **) &jmp_list_ptr);
|
|
zend_llist_add_element(jmp_list_ptr, &if_end_op_number);
|
|
|
|
CG(active_op_array)->opcodes[closing_bracket_token->u.op.opline_num].op2.opline_num = if_end_op_number+1;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_if_end(TSRMLS_D) /* {{{ */
|
|
{
|
|
int next_op_number = get_next_op_number(CG(active_op_array));
|
|
zend_llist *jmp_list_ptr;
|
|
zend_llist_element *le;
|
|
|
|
zend_stack_top(&CG(bp_stack), (void **) &jmp_list_ptr);
|
|
for (le=jmp_list_ptr->head; le; le = le->next) {
|
|
CG(active_op_array)->opcodes[*((int *) le->data)].op1.opline_num = next_op_number;
|
|
}
|
|
zend_llist_destroy(jmp_list_ptr);
|
|
zend_stack_del_top(&CG(bp_stack));
|
|
DEC_BPC(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_check_writable_variable(const znode *variable) /* {{{ */
|
|
{
|
|
zend_uint type = variable->EA;
|
|
|
|
if (type & ZEND_PARSED_METHOD_CALL) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Can't use method return value in write context");
|
|
}
|
|
if (type == ZEND_PARSED_FUNCTION_CALL) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Can't use function return value in write context");
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_begin_variable_parse(TSRMLS_D) /* {{{ */
|
|
{
|
|
zend_llist fetch_list;
|
|
|
|
zend_llist_init(&fetch_list, sizeof(zend_op), NULL, 0);
|
|
zend_stack_push(&CG(bp_stack), (void *) &fetch_list, sizeof(zend_llist));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_end_variable_parse(znode *variable, int type, int arg_offset TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_llist *fetch_list_ptr;
|
|
zend_llist_element *le;
|
|
zend_op *opline = NULL;
|
|
zend_op *opline_ptr;
|
|
zend_uint this_var = -1;
|
|
|
|
zend_stack_top(&CG(bp_stack), (void **) &fetch_list_ptr);
|
|
|
|
le = fetch_list_ptr->head;
|
|
|
|
/* TODO: $foo->x->y->z = 1 should fetch "x" and "y" for R or RW, not just W */
|
|
|
|
if (le) {
|
|
opline_ptr = (zend_op *)le->data;
|
|
if (opline_is_fetch_this(opline_ptr TSRMLS_CC)) {
|
|
/* convert to FETCH_?(this) into IS_CV */
|
|
if (CG(active_op_array)->last == 0 ||
|
|
CG(active_op_array)->opcodes[CG(active_op_array)->last-1].opcode != ZEND_BEGIN_SILENCE) {
|
|
|
|
this_var = opline_ptr->result.var;
|
|
if (CG(active_op_array)->this_var == -1) {
|
|
CG(active_op_array)->this_var = lookup_cv(CG(active_op_array), Z_STR(CONSTANT(opline_ptr->op1.constant)) TSRMLS_CC);
|
|
ZVAL_UNDEF(&CONSTANT(opline_ptr->op1.constant));
|
|
} else {
|
|
zend_del_literal(CG(active_op_array), opline_ptr->op1.constant);
|
|
}
|
|
le = le->next;
|
|
if (variable->op_type == IS_VAR &&
|
|
variable->u.op.var == this_var) {
|
|
variable->op_type = IS_CV;
|
|
variable->u.op.var = CG(active_op_array)->this_var;
|
|
}
|
|
} else if (CG(active_op_array)->this_var == -1) {
|
|
CG(active_op_array)->this_var = lookup_cv(CG(active_op_array), STR_INIT("this", sizeof("this")-1, 0) TSRMLS_CC);
|
|
}
|
|
}
|
|
|
|
while (le) {
|
|
opline_ptr = (zend_op *)le->data;
|
|
if (opline_ptr->opcode == ZEND_SEPARATE) {
|
|
if (type != BP_VAR_R && type != BP_VAR_IS) {
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
memcpy(opline, opline_ptr, sizeof(zend_op));
|
|
}
|
|
le = le->next;
|
|
continue;
|
|
}
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
memcpy(opline, opline_ptr, sizeof(zend_op));
|
|
if (opline->op1_type == IS_VAR &&
|
|
opline->op1.var == this_var) {
|
|
opline->op1_type = IS_CV;
|
|
opline->op1.var = CG(active_op_array)->this_var;
|
|
}
|
|
switch (type) {
|
|
case BP_VAR_R:
|
|
if (opline->opcode == ZEND_FETCH_DIM_W && opline->op2_type == IS_UNUSED) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use [] for reading");
|
|
}
|
|
opline->opcode -= 3;
|
|
break;
|
|
case BP_VAR_W:
|
|
break;
|
|
case BP_VAR_RW:
|
|
opline->opcode += 3;
|
|
break;
|
|
case BP_VAR_IS:
|
|
if (opline->opcode == ZEND_FETCH_DIM_W && opline->op2_type == IS_UNUSED) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use [] for reading");
|
|
}
|
|
opline->opcode += 6; /* 3+3 */
|
|
break;
|
|
case BP_VAR_FUNC_ARG:
|
|
opline->opcode += 9; /* 3+3+3 */
|
|
opline->extended_value |= arg_offset;
|
|
break;
|
|
case BP_VAR_UNSET:
|
|
if (opline->opcode == ZEND_FETCH_DIM_W && opline->op2_type == IS_UNUSED) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use [] for unsetting");
|
|
}
|
|
opline->opcode += 12; /* 3+3+3+3 */
|
|
break;
|
|
}
|
|
le = le->next;
|
|
}
|
|
if (opline && type == BP_VAR_W && arg_offset) {
|
|
opline->extended_value |= ZEND_FETCH_MAKE_REF;
|
|
}
|
|
}
|
|
zend_llist_destroy(fetch_list_ptr);
|
|
zend_stack_del_top(&CG(bp_stack));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_add_string(znode *result, const znode *op1, znode *op2 TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
|
|
if (Z_STRLEN(op2->u.constant) > 1) {
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_ADD_STRING;
|
|
} else if (Z_STRLEN(op2->u.constant) == 1) {
|
|
int ch = *Z_STRVAL(op2->u.constant);
|
|
|
|
/* Free memory and use ZEND_ADD_CHAR in case of 1 character strings */
|
|
STR_FREE(Z_STR(op2->u.constant));
|
|
ZVAL_LONG(&op2->u.constant, ch);
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_ADD_CHAR;
|
|
} else { /* String can be empty after a variable at the end of a heredoc */
|
|
STR_FREE(Z_STR(op2->u.constant));
|
|
return;
|
|
}
|
|
|
|
if (op1) {
|
|
SET_NODE(opline->op1, op1);
|
|
SET_NODE(opline->result, op1);
|
|
} else {
|
|
SET_UNUSED(opline->op1);
|
|
opline->result_type = IS_TMP_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
}
|
|
SET_NODE(opline->op2, op2);
|
|
GET_NODE(result, opline->result);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_add_variable(znode *result, const znode *op1, const znode *op2 TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_ADD_VAR;
|
|
|
|
if (op1) {
|
|
SET_NODE(opline->op1, op1);
|
|
SET_NODE(opline->result, op1);
|
|
} else {
|
|
SET_UNUSED(opline->op1);
|
|
opline->result_type = IS_TMP_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
}
|
|
SET_NODE(opline->op2, op2);
|
|
GET_NODE(result, opline->result);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_free(znode *op1 TSRMLS_DC) /* {{{ */
|
|
{
|
|
if (op1->op_type==IS_TMP_VAR) {
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_FREE;
|
|
SET_NODE(opline->op1, op1);
|
|
SET_UNUSED(opline->op2);
|
|
} else if (op1->op_type==IS_VAR) {
|
|
zend_op *opline = &CG(active_op_array)->opcodes[CG(active_op_array)->last-1];
|
|
|
|
while (opline->opcode == ZEND_END_SILENCE || opline->opcode == ZEND_EXT_FCALL_END || opline->opcode == ZEND_OP_DATA) {
|
|
opline--;
|
|
}
|
|
if (opline->result_type == IS_VAR
|
|
&& opline->result.var == op1->u.op.var) {
|
|
if (opline->opcode == ZEND_FETCH_R ||
|
|
opline->opcode == ZEND_FETCH_DIM_R ||
|
|
opline->opcode == ZEND_FETCH_OBJ_R ||
|
|
opline->opcode == ZEND_QM_ASSIGN_VAR) {
|
|
/* It's very rare and useless case. It's better to use
|
|
additional FREE opcode and simplify the FETCH handlers
|
|
their selves */
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_FREE;
|
|
SET_NODE(opline->op1, op1);
|
|
SET_UNUSED(opline->op2);
|
|
} else {
|
|
opline->result_type |= EXT_TYPE_UNUSED;
|
|
}
|
|
} else {
|
|
while (opline>CG(active_op_array)->opcodes) {
|
|
if (opline->opcode == ZEND_FETCH_DIM_R
|
|
&& opline->op1_type == IS_VAR
|
|
&& opline->op1.var == op1->u.op.var) {
|
|
/* This should the end of a list() construct
|
|
* Mark its result as unused
|
|
*/
|
|
opline->extended_value = ZEND_FETCH_STANDARD;
|
|
break;
|
|
} else if (opline->result_type==IS_VAR
|
|
&& opline->result.var == op1->u.op.var) {
|
|
if (opline->opcode == ZEND_NEW) {
|
|
opline->result_type |= EXT_TYPE_UNUSED;
|
|
}
|
|
break;
|
|
}
|
|
opline--;
|
|
}
|
|
}
|
|
} else if (op1->op_type == IS_CONST) {
|
|
zval_dtor(&op1->u.constant);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
int zend_do_verify_access_types(const znode *current_access_type, const znode *new_modifier) /* {{{ */
|
|
{
|
|
if ((Z_LVAL(current_access_type->u.constant) & ZEND_ACC_PPP_MASK)
|
|
&& (Z_LVAL(new_modifier->u.constant) & ZEND_ACC_PPP_MASK)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Multiple access type modifiers are not allowed");
|
|
}
|
|
if ((Z_LVAL(current_access_type->u.constant) & ZEND_ACC_ABSTRACT)
|
|
&& (Z_LVAL(new_modifier->u.constant) & ZEND_ACC_ABSTRACT)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Multiple abstract modifiers are not allowed");
|
|
}
|
|
if ((Z_LVAL(current_access_type->u.constant) & ZEND_ACC_STATIC)
|
|
&& (Z_LVAL(new_modifier->u.constant) & ZEND_ACC_STATIC)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Multiple static modifiers are not allowed");
|
|
}
|
|
if ((Z_LVAL(current_access_type->u.constant) & ZEND_ACC_FINAL)
|
|
&& (Z_LVAL(new_modifier->u.constant) & ZEND_ACC_FINAL)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Multiple final modifiers are not allowed");
|
|
}
|
|
if (((Z_LVAL(current_access_type->u.constant) | Z_LVAL(new_modifier->u.constant)) & (ZEND_ACC_ABSTRACT | ZEND_ACC_FINAL)) == (ZEND_ACC_ABSTRACT | ZEND_ACC_FINAL)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use the final modifier on an abstract class member");
|
|
}
|
|
return (Z_LVAL(current_access_type->u.constant) | Z_LVAL(new_modifier->u.constant));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_begin_function_declaration(znode *function_token, znode *function_name, int is_method, int return_reference, znode *fn_flags_znode TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op_array op_array;
|
|
zend_string *name = Z_STR(function_name->u.constant);
|
|
int function_begin_line = function_token->u.op.opline_num;
|
|
zend_uint fn_flags;
|
|
zend_string *lcname;
|
|
zend_bool orig_interactive;
|
|
ALLOCA_FLAG(use_heap)
|
|
|
|
if (is_method) {
|
|
if (CG(active_class_entry)->ce_flags & ZEND_ACC_INTERFACE) {
|
|
if ((Z_LVAL(fn_flags_znode->u.constant) & ~(ZEND_ACC_STATIC|ZEND_ACC_PUBLIC))) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Access type for interface method %s::%s() must be omitted", CG(active_class_entry)->name, Z_STRVAL(function_name->u.constant));
|
|
}
|
|
Z_LVAL(fn_flags_znode->u.constant) |= ZEND_ACC_ABSTRACT; /* propagates to the rest of the parser */
|
|
}
|
|
fn_flags = Z_LVAL(fn_flags_znode->u.constant); /* must be done *after* the above check */
|
|
} else {
|
|
fn_flags = 0;
|
|
}
|
|
if ((fn_flags & ZEND_ACC_STATIC) && (fn_flags & ZEND_ACC_ABSTRACT) && !(CG(active_class_entry)->ce_flags & ZEND_ACC_INTERFACE)) {
|
|
zend_error(E_STRICT, "Static function %s%s%s() should not be abstract", is_method ? CG(active_class_entry)->name->val : "", is_method ? "::" : "", Z_STRVAL(function_name->u.constant));
|
|
}
|
|
|
|
function_token->u.op_array = CG(active_op_array);
|
|
|
|
orig_interactive = CG(interactive);
|
|
CG(interactive) = 0;
|
|
init_op_array(&op_array, ZEND_USER_FUNCTION, INITIAL_OP_ARRAY_SIZE TSRMLS_CC);
|
|
CG(interactive) = orig_interactive;
|
|
|
|
op_array.function_name = name;
|
|
if (return_reference) {
|
|
op_array.fn_flags |= ZEND_ACC_RETURN_REFERENCE;
|
|
}
|
|
op_array.fn_flags |= fn_flags;
|
|
|
|
op_array.scope = is_method?CG(active_class_entry):NULL;
|
|
op_array.prototype = NULL;
|
|
|
|
op_array.line_start = zend_get_compiled_lineno(TSRMLS_C);
|
|
|
|
if (is_method) {
|
|
lcname = STR_ALLOC(name->len, 0);
|
|
zend_str_tolower_copy(lcname->val, name->val, name->len);
|
|
lcname = zend_new_interned_string(lcname TSRMLS_CC);
|
|
CG(active_op_array) = emalloc(sizeof(zend_op_array));
|
|
memcpy(CG(active_op_array), &op_array, sizeof(zend_op_array));
|
|
if (zend_hash_add_ptr(&CG(active_class_entry)->function_table, lcname, CG(active_op_array)) == NULL) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot redeclare %s::%s()", CG(active_class_entry)->name->val, name->val);
|
|
}
|
|
|
|
zend_stack_push(&CG(context_stack), (void *) &CG(context), sizeof(CG(context)));
|
|
zend_init_compiler_context(TSRMLS_C);
|
|
|
|
if (fn_flags & ZEND_ACC_ABSTRACT) {
|
|
CG(active_class_entry)->ce_flags |= ZEND_ACC_IMPLICIT_ABSTRACT_CLASS;
|
|
}
|
|
|
|
if (!(fn_flags & ZEND_ACC_PPP_MASK)) {
|
|
fn_flags |= ZEND_ACC_PUBLIC;
|
|
}
|
|
|
|
if (CG(active_class_entry)->ce_flags & ZEND_ACC_INTERFACE) {
|
|
if ((name->len == sizeof(ZEND_CALL_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_CALL_FUNC_NAME, sizeof(ZEND_CALL_FUNC_NAME)-1))) {
|
|
if (fn_flags & ((ZEND_ACC_PPP_MASK | ZEND_ACC_STATIC) ^ ZEND_ACC_PUBLIC)) {
|
|
zend_error(E_WARNING, "The magic method __call() must have public visibility and cannot be static");
|
|
}
|
|
} else if ((name->len == sizeof(ZEND_CALLSTATIC_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_CALLSTATIC_FUNC_NAME, sizeof(ZEND_CALLSTATIC_FUNC_NAME)-1))) {
|
|
if ((fn_flags & (ZEND_ACC_PPP_MASK ^ ZEND_ACC_PUBLIC)) || (fn_flags & ZEND_ACC_STATIC) == 0) {
|
|
zend_error(E_WARNING, "The magic method __callStatic() must have public visibility and be static");
|
|
}
|
|
} else if ((name->len == sizeof(ZEND_GET_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_GET_FUNC_NAME, sizeof(ZEND_GET_FUNC_NAME)-1))) {
|
|
if (fn_flags & ((ZEND_ACC_PPP_MASK | ZEND_ACC_STATIC) ^ ZEND_ACC_PUBLIC)) {
|
|
zend_error(E_WARNING, "The magic method __get() must have public visibility and cannot be static");
|
|
}
|
|
} else if ((name->len == sizeof(ZEND_SET_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_SET_FUNC_NAME, sizeof(ZEND_SET_FUNC_NAME)-1))) {
|
|
if (fn_flags & ((ZEND_ACC_PPP_MASK | ZEND_ACC_STATIC) ^ ZEND_ACC_PUBLIC)) {
|
|
zend_error(E_WARNING, "The magic method __set() must have public visibility and cannot be static");
|
|
}
|
|
} else if ((name->len == sizeof(ZEND_UNSET_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_UNSET_FUNC_NAME, sizeof(ZEND_UNSET_FUNC_NAME)-1))) {
|
|
if (fn_flags & ((ZEND_ACC_PPP_MASK | ZEND_ACC_STATIC) ^ ZEND_ACC_PUBLIC)) {
|
|
zend_error(E_WARNING, "The magic method __unset() must have public visibility and cannot be static");
|
|
}
|
|
} else if ((name->len == sizeof(ZEND_ISSET_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_ISSET_FUNC_NAME, sizeof(ZEND_ISSET_FUNC_NAME)-1))) {
|
|
if (fn_flags & ((ZEND_ACC_PPP_MASK | ZEND_ACC_STATIC) ^ ZEND_ACC_PUBLIC)) {
|
|
zend_error(E_WARNING, "The magic method __isset() must have public visibility and cannot be static");
|
|
}
|
|
} else if ((name->len == sizeof(ZEND_TOSTRING_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_TOSTRING_FUNC_NAME, sizeof(ZEND_TOSTRING_FUNC_NAME)-1))) {
|
|
if (fn_flags & ((ZEND_ACC_PPP_MASK | ZEND_ACC_STATIC) ^ ZEND_ACC_PUBLIC)) {
|
|
zend_error(E_WARNING, "The magic method __toString() must have public visibility and cannot be static");
|
|
}
|
|
} else if ((name->len == sizeof(ZEND_INVOKE_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_INVOKE_FUNC_NAME, sizeof(ZEND_INVOKE_FUNC_NAME)-1))) {
|
|
if (fn_flags & ((ZEND_ACC_PPP_MASK | ZEND_ACC_STATIC) ^ ZEND_ACC_PUBLIC)) {
|
|
zend_error(E_WARNING, "The magic method __invoke() must have public visibility and cannot be static");
|
|
}
|
|
}
|
|
} else {
|
|
char *class_lcname;
|
|
|
|
class_lcname = do_alloca(CG(active_class_entry)->name->len + 1, use_heap);
|
|
zend_str_tolower_copy(class_lcname, CG(active_class_entry)->name->val, CG(active_class_entry)->name->len);
|
|
/* Improve after RC: cache the lowercase class name */
|
|
|
|
if ((CG(active_class_entry)->name->len == name->len) && ((CG(active_class_entry)->ce_flags & ZEND_ACC_TRAIT) != ZEND_ACC_TRAIT) && (!memcmp(class_lcname, lcname->val, name->len))) {
|
|
if (!CG(active_class_entry)->constructor) {
|
|
CG(active_class_entry)->constructor = (zend_function *) CG(active_op_array);
|
|
}
|
|
} else if ((name->len == sizeof(ZEND_CONSTRUCTOR_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_CONSTRUCTOR_FUNC_NAME, sizeof(ZEND_CONSTRUCTOR_FUNC_NAME)))) {
|
|
if (CG(active_class_entry)->constructor) {
|
|
zend_error(E_STRICT, "Redefining already defined constructor for class %s", CG(active_class_entry)->name->val);
|
|
}
|
|
CG(active_class_entry)->constructor = (zend_function *) CG(active_op_array);
|
|
} else if ((name->len == sizeof(ZEND_DESTRUCTOR_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_DESTRUCTOR_FUNC_NAME, sizeof(ZEND_DESTRUCTOR_FUNC_NAME)-1))) {
|
|
CG(active_class_entry)->destructor = (zend_function *) CG(active_op_array);
|
|
} else if ((name->len == sizeof(ZEND_CLONE_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_CLONE_FUNC_NAME, sizeof(ZEND_CLONE_FUNC_NAME)-1))) {
|
|
CG(active_class_entry)->clone = (zend_function *) CG(active_op_array);
|
|
} else if ((name->len == sizeof(ZEND_CALL_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_CALL_FUNC_NAME, sizeof(ZEND_CALL_FUNC_NAME)-1))) {
|
|
if (fn_flags & ((ZEND_ACC_PPP_MASK | ZEND_ACC_STATIC) ^ ZEND_ACC_PUBLIC)) {
|
|
zend_error(E_WARNING, "The magic method __call() must have public visibility and cannot be static");
|
|
}
|
|
CG(active_class_entry)->__call = (zend_function *) CG(active_op_array);
|
|
} else if ((name->len == sizeof(ZEND_CALLSTATIC_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_CALLSTATIC_FUNC_NAME, sizeof(ZEND_CALLSTATIC_FUNC_NAME)-1))) {
|
|
if ((fn_flags & (ZEND_ACC_PPP_MASK ^ ZEND_ACC_PUBLIC)) || (fn_flags & ZEND_ACC_STATIC) == 0) {
|
|
zend_error(E_WARNING, "The magic method __callStatic() must have public visibility and be static");
|
|
}
|
|
CG(active_class_entry)->__callstatic = (zend_function *) CG(active_op_array);
|
|
} else if ((name->len == sizeof(ZEND_GET_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_GET_FUNC_NAME, sizeof(ZEND_GET_FUNC_NAME)-1))) {
|
|
if (fn_flags & ((ZEND_ACC_PPP_MASK | ZEND_ACC_STATIC) ^ ZEND_ACC_PUBLIC)) {
|
|
zend_error(E_WARNING, "The magic method __get() must have public visibility and cannot be static");
|
|
}
|
|
CG(active_class_entry)->__get = (zend_function *) CG(active_op_array);
|
|
} else if ((name->len == sizeof(ZEND_SET_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_SET_FUNC_NAME, sizeof(ZEND_SET_FUNC_NAME)-1))) {
|
|
if (fn_flags & ((ZEND_ACC_PPP_MASK | ZEND_ACC_STATIC) ^ ZEND_ACC_PUBLIC)) {
|
|
zend_error(E_WARNING, "The magic method __set() must have public visibility and cannot be static");
|
|
}
|
|
CG(active_class_entry)->__set = (zend_function *) CG(active_op_array);
|
|
} else if ((name->len == sizeof(ZEND_UNSET_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_UNSET_FUNC_NAME, sizeof(ZEND_UNSET_FUNC_NAME)-1))) {
|
|
if (fn_flags & ((ZEND_ACC_PPP_MASK | ZEND_ACC_STATIC) ^ ZEND_ACC_PUBLIC)) {
|
|
zend_error(E_WARNING, "The magic method __unset() must have public visibility and cannot be static");
|
|
}
|
|
CG(active_class_entry)->__unset = (zend_function *) CG(active_op_array);
|
|
} else if ((name->len == sizeof(ZEND_ISSET_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_ISSET_FUNC_NAME, sizeof(ZEND_ISSET_FUNC_NAME)-1))) {
|
|
if (fn_flags & ((ZEND_ACC_PPP_MASK | ZEND_ACC_STATIC) ^ ZEND_ACC_PUBLIC)) {
|
|
zend_error(E_WARNING, "The magic method __isset() must have public visibility and cannot be static");
|
|
}
|
|
CG(active_class_entry)->__isset = (zend_function *) CG(active_op_array);
|
|
} else if ((name->len == sizeof(ZEND_TOSTRING_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_TOSTRING_FUNC_NAME, sizeof(ZEND_TOSTRING_FUNC_NAME)-1))) {
|
|
if (fn_flags & ((ZEND_ACC_PPP_MASK | ZEND_ACC_STATIC) ^ ZEND_ACC_PUBLIC)) {
|
|
zend_error(E_WARNING, "The magic method __toString() must have public visibility and cannot be static");
|
|
}
|
|
CG(active_class_entry)->__tostring = (zend_function *) CG(active_op_array);
|
|
} else if ((name->len == sizeof(ZEND_INVOKE_FUNC_NAME)-1) && (!memcmp(lcname->val, ZEND_INVOKE_FUNC_NAME, sizeof(ZEND_INVOKE_FUNC_NAME)-1))) {
|
|
if (fn_flags & ((ZEND_ACC_PPP_MASK | ZEND_ACC_STATIC) ^ ZEND_ACC_PUBLIC)) {
|
|
zend_error(E_WARNING, "The magic method __invoke() must have public visibility and cannot be static");
|
|
}
|
|
} else if (!(fn_flags & ZEND_ACC_STATIC)) {
|
|
CG(active_op_array)->fn_flags |= ZEND_ACC_ALLOW_STATIC;
|
|
}
|
|
free_alloca(class_lcname, use_heap);
|
|
}
|
|
|
|
STR_RELEASE(lcname);
|
|
} else {
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
zval key;
|
|
zval *ns_name;
|
|
|
|
if (Z_TYPE(CG(current_namespace)) != IS_UNDEF) {
|
|
/* Prefix function name with current namespace name */
|
|
znode tmp;
|
|
|
|
ZVAL_DUP(&tmp.u.constant, &CG(current_namespace));
|
|
zend_do_build_namespace_name(&tmp, &tmp, function_name TSRMLS_CC);
|
|
op_array.function_name = Z_STR(tmp.u.constant);
|
|
lcname = STR_ALLOC(Z_STRLEN(tmp.u.constant), 0);
|
|
zend_str_tolower_copy(lcname->val, Z_STRVAL(tmp.u.constant), Z_STRLEN(tmp.u.constant));
|
|
} else {
|
|
lcname = STR_ALLOC(name->len, 0);
|
|
zend_str_tolower_copy(lcname->val, name->val, name->len);
|
|
}
|
|
|
|
/* Function name must not conflict with import names */
|
|
if (CG(current_import_function) &&
|
|
(ns_name = zend_hash_find(CG(current_import_function), lcname)) != NULL) {
|
|
|
|
char *tmp = zend_str_tolower_dup(Z_STRVAL_P(ns_name), Z_STRLEN_P(ns_name));
|
|
|
|
if (Z_STRLEN_P(ns_name) != Z_STRLEN(function_name->u.constant) ||
|
|
memcmp(tmp, lcname->val, Z_STRLEN(function_name->u.constant))) {
|
|
zend_error(E_COMPILE_ERROR, "Cannot declare function %s because the name is already in use", Z_STRVAL(function_name->u.constant));
|
|
}
|
|
efree(tmp);
|
|
}
|
|
|
|
opline->opcode = ZEND_DECLARE_FUNCTION;
|
|
opline->op1_type = IS_CONST;
|
|
build_runtime_defined_function_key(&key, lcname->val, lcname->len TSRMLS_CC);
|
|
opline->op1.constant = zend_add_literal(CG(active_op_array), &key TSRMLS_CC);
|
|
opline->op2_type = IS_CONST;
|
|
LITERAL_STR(opline->op2, STR_COPY(lcname));
|
|
opline->extended_value = ZEND_DECLARE_FUNCTION;
|
|
CG(active_op_array) = emalloc(sizeof(zend_op_array));
|
|
memcpy(CG(active_op_array), &op_array, sizeof(zend_op_array));
|
|
zend_hash_update_ptr(CG(function_table), Z_STR(key), CG(active_op_array));
|
|
zend_stack_push(&CG(context_stack), (void *) &CG(context), sizeof(CG(context)));
|
|
zend_init_compiler_context(TSRMLS_C);
|
|
STR_RELEASE(lcname);
|
|
}
|
|
|
|
if (CG(compiler_options) & ZEND_COMPILE_EXTENDED_INFO) {
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_EXT_NOP;
|
|
opline->lineno = function_begin_line;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
|
|
{
|
|
/* Push a separator to the switch stack */
|
|
zend_switch_entry switch_entry;
|
|
|
|
switch_entry.cond.op_type = IS_UNUSED;
|
|
switch_entry.default_case = 0;
|
|
switch_entry.control_var = 0;
|
|
|
|
zend_stack_push(&CG(switch_cond_stack), (void *) &switch_entry, sizeof(switch_entry));
|
|
}
|
|
|
|
{
|
|
/* Push a separator to the foreach stack */
|
|
zend_op dummy_opline;
|
|
|
|
dummy_opline.result_type = IS_UNUSED;
|
|
|
|
zend_stack_push(&CG(foreach_copy_stack), (void *) &dummy_opline, sizeof(zend_op));
|
|
}
|
|
|
|
if (CG(doc_comment)) {
|
|
CG(active_op_array)->doc_comment = CG(doc_comment);
|
|
CG(doc_comment) = NULL;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_begin_lambda_function_declaration(znode *result, znode *function_token, int return_reference, int is_static TSRMLS_DC) /* {{{ */
|
|
{
|
|
znode function_name;
|
|
zend_op_array *current_op_array = CG(active_op_array);
|
|
int current_op_number = get_next_op_number(CG(active_op_array));
|
|
zend_op *current_op;
|
|
|
|
function_name.op_type = IS_CONST;
|
|
ZVAL_STRINGL(&function_name.u.constant, "{closure}", sizeof("{closure}")-1);
|
|
|
|
zend_do_begin_function_declaration(function_token, &function_name, 0, return_reference, NULL TSRMLS_CC);
|
|
|
|
result->op_type = IS_TMP_VAR;
|
|
result->u.op.var = get_temporary_variable(current_op_array);
|
|
|
|
current_op = ¤t_op_array->opcodes[current_op_number];
|
|
current_op->opcode = ZEND_DECLARE_LAMBDA_FUNCTION;
|
|
zend_del_literal(current_op_array, current_op->op2.constant);
|
|
SET_UNUSED(current_op->op2);
|
|
SET_NODE(current_op->result, result);
|
|
if (is_static) {
|
|
CG(active_op_array)->fn_flags |= ZEND_ACC_STATIC;
|
|
}
|
|
CG(active_op_array)->fn_flags |= ZEND_ACC_CLOSURE;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_handle_exception(TSRMLS_D) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_HANDLE_EXCEPTION;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_end_function_declaration(const znode *function_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
char lcname[16];
|
|
int name_len;
|
|
|
|
zend_do_extended_info(TSRMLS_C);
|
|
zend_do_return(NULL, 0 TSRMLS_CC);
|
|
|
|
pass_two(CG(active_op_array) TSRMLS_CC);
|
|
zend_release_labels(0 TSRMLS_CC);
|
|
|
|
if (CG(active_class_entry)) {
|
|
zend_check_magic_method_implementation(CG(active_class_entry), (zend_function*)CG(active_op_array), E_COMPILE_ERROR TSRMLS_CC);
|
|
} else {
|
|
/* we don't care if the function name is longer, in fact lowercasing only
|
|
* the beginning of the name speeds up the check process */
|
|
name_len = CG(active_op_array)->function_name->len;
|
|
zend_str_tolower_copy(lcname, CG(active_op_array)->function_name->val, MIN(name_len, sizeof(lcname)-1));
|
|
lcname[sizeof(lcname)-1] = '\0'; /* zend_str_tolower_copy won't necessarily set the zero byte */
|
|
if (name_len == sizeof(ZEND_AUTOLOAD_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_AUTOLOAD_FUNC_NAME, sizeof(ZEND_AUTOLOAD_FUNC_NAME)) && CG(active_op_array)->num_args != 1) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "%s() must take exactly 1 argument", ZEND_AUTOLOAD_FUNC_NAME);
|
|
}
|
|
}
|
|
|
|
CG(active_op_array)->line_end = zend_get_compiled_lineno(TSRMLS_C);
|
|
CG(active_op_array) = function_token->u.op_array;
|
|
|
|
|
|
/* Pop the switch and foreach separators */
|
|
zend_stack_del_top(&CG(switch_cond_stack));
|
|
zend_stack_del_top(&CG(foreach_copy_stack));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_receive_param(zend_uchar op, znode *varname, const znode *initialization, znode *class_type, zend_uchar pass_by_reference, zend_bool is_variadic TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
zend_arg_info *cur_arg_info;
|
|
znode var;
|
|
|
|
if (zend_is_auto_global(Z_STR(varname->u.constant) TSRMLS_CC)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot re-assign auto-global variable %s", Z_STRVAL(varname->u.constant));
|
|
} else {
|
|
var.op_type = IS_CV;
|
|
var.u.op.var = lookup_cv(CG(active_op_array), Z_STR(varname->u.constant) TSRMLS_CC);
|
|
Z_STR(varname->u.constant) = CG(active_op_array)->vars[var.u.op.var];
|
|
var.EA = 0;
|
|
if (Z_STRHASH(varname->u.constant) == THIS_HASHVAL &&
|
|
Z_STRLEN(varname->u.constant) == sizeof("this")-1 &&
|
|
!memcmp(Z_STRVAL(varname->u.constant), "this", sizeof("this")-1)) {
|
|
if (CG(active_op_array)->scope &&
|
|
(CG(active_op_array)->fn_flags & ZEND_ACC_STATIC) == 0) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot re-assign $this");
|
|
}
|
|
CG(active_op_array)->this_var = var.u.op.var;
|
|
}
|
|
}
|
|
|
|
if (CG(active_op_array)->fn_flags & ZEND_ACC_VARIADIC) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Only the last parameter can be variadic");
|
|
}
|
|
|
|
if (is_variadic) {
|
|
if (op == ZEND_RECV_INIT) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Variadic parameter cannot have a default value");
|
|
}
|
|
|
|
op = ZEND_RECV_VARIADIC;
|
|
CG(active_op_array)->fn_flags |= ZEND_ACC_VARIADIC;
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
CG(active_op_array)->num_args++;
|
|
opline->opcode = op;
|
|
SET_NODE(opline->result, &var);
|
|
opline->op1_type = IS_UNUSED;
|
|
opline->op1.num = CG(active_op_array)->num_args;
|
|
if (op == ZEND_RECV_INIT) {
|
|
SET_NODE(opline->op2, initialization);
|
|
} else {
|
|
SET_UNUSED(opline->op2);
|
|
if (!is_variadic) {
|
|
CG(active_op_array)->required_num_args = CG(active_op_array)->num_args;
|
|
}
|
|
}
|
|
CG(active_op_array)->arg_info = erealloc(CG(active_op_array)->arg_info, sizeof(zend_arg_info)*(CG(active_op_array)->num_args));
|
|
cur_arg_info = &CG(active_op_array)->arg_info[CG(active_op_array)->num_args-1];
|
|
//??? cur_arg_info->name = zend_new_interned_string(estrndup(Z_STRVAL(varname->u.constant), Z_STRLEN(varname->u.constant)), Z_STRLEN(varname->u.constant) + 1, 1 TSRMLS_CC);
|
|
cur_arg_info->name = estrndup(Z_STRVAL(varname->u.constant), Z_STRLEN(varname->u.constant));
|
|
cur_arg_info->name_len = Z_STRLEN(varname->u.constant);
|
|
cur_arg_info->type_hint = 0;
|
|
cur_arg_info->pass_by_reference = pass_by_reference;
|
|
cur_arg_info->allow_null = 1;
|
|
cur_arg_info->is_variadic = is_variadic;
|
|
cur_arg_info->class_name = NULL;
|
|
cur_arg_info->class_name_len = 0;
|
|
|
|
if (class_type->op_type != IS_UNUSED) {
|
|
cur_arg_info->allow_null = 0;
|
|
|
|
if (class_type->u.constant.type != IS_NULL) {
|
|
if (class_type->u.constant.type == IS_ARRAY) {
|
|
cur_arg_info->type_hint = IS_ARRAY;
|
|
if (op == ZEND_RECV_INIT) {
|
|
if (Z_TYPE(initialization->u.constant) == IS_NULL || (Z_TYPE(initialization->u.constant) == IS_CONSTANT && !strcasecmp(Z_STRVAL(initialization->u.constant), "NULL")) || Z_TYPE(initialization->u.constant) == IS_CONSTANT_AST) {
|
|
cur_arg_info->allow_null = 1;
|
|
} else if (Z_TYPE(initialization->u.constant) != IS_ARRAY && Z_TYPE(initialization->u.constant) != IS_CONSTANT_ARRAY) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Default value for parameters with array type hint can only be an array or NULL");
|
|
}
|
|
}
|
|
} else if (class_type->u.constant.type == IS_CALLABLE) {
|
|
cur_arg_info->type_hint = IS_CALLABLE;
|
|
if (op == ZEND_RECV_INIT) {
|
|
if (Z_TYPE(initialization->u.constant) == IS_NULL || (Z_TYPE(initialization->u.constant) == IS_CONSTANT && !strcasecmp(Z_STRVAL(initialization->u.constant), "NULL")) || Z_TYPE(initialization->u.constant) == IS_CONSTANT_AST) {
|
|
cur_arg_info->allow_null = 1;
|
|
} else {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Default value for parameters with callable type hint can only be NULL");
|
|
}
|
|
}
|
|
} else {
|
|
cur_arg_info->type_hint = IS_OBJECT;
|
|
if (ZEND_FETCH_CLASS_DEFAULT == zend_get_class_fetch_type(Z_STRVAL(class_type->u.constant), Z_STRLEN(class_type->u.constant))) {
|
|
zend_resolve_class_name(class_type TSRMLS_CC);
|
|
}
|
|
Z_STR(class_type->u.constant) = zend_new_interned_string(Z_STR(class_type->u.constant) TSRMLS_CC);
|
|
cur_arg_info->class_name = Z_STRVAL(class_type->u.constant);
|
|
cur_arg_info->class_name_len = Z_STRLEN(class_type->u.constant);
|
|
if (op == ZEND_RECV_INIT) {
|
|
if (Z_TYPE(initialization->u.constant) == IS_NULL || (Z_TYPE(initialization->u.constant) == IS_CONSTANT && !strcasecmp(Z_STRVAL(initialization->u.constant), "NULL")) || Z_TYPE(initialization->u.constant) == IS_CONSTANT_AST) {
|
|
cur_arg_info->allow_null = 1;
|
|
} else {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Default value for parameters with a class type hint can only be NULL");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
int zend_do_begin_function_call(znode *function_name, zend_bool check_namespace TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_function *function;
|
|
zend_string *lcname;
|
|
char *is_compound = memchr(Z_STRVAL(function_name->u.constant), '\\', Z_STRLEN(function_name->u.constant));
|
|
|
|
zend_resolve_function_name(function_name, &check_namespace TSRMLS_CC);
|
|
|
|
if (check_namespace && Z_TYPE(CG(current_namespace)) != IS_UNDEF && !is_compound) {
|
|
/* We assume we call function from the current namespace
|
|
if it is not prefixed. */
|
|
|
|
/* In run-time PHP will check for function with full name and
|
|
internal function with short name */
|
|
zend_do_begin_dynamic_function_call(function_name, 1 TSRMLS_CC);
|
|
return 1;
|
|
}
|
|
|
|
lcname = STR_ALLOC(Z_STRLEN(function_name->u.constant), 0);
|
|
zend_str_tolower_copy(lcname->val, Z_STRVAL(function_name->u.constant), Z_STRLEN(function_name->u.constant));
|
|
if (((function = zend_hash_find_ptr(CG(function_table), lcname)) == NULL) ||
|
|
((CG(compiler_options) & ZEND_COMPILE_IGNORE_INTERNAL_FUNCTIONS) &&
|
|
(function->type == ZEND_INTERNAL_FUNCTION))) {
|
|
zend_do_begin_dynamic_function_call(function_name, 0 TSRMLS_CC);
|
|
efree(lcname);
|
|
return 1; /* Dynamic */
|
|
}
|
|
STR_RELEASE(Z_STR(function_name->u.constant));
|
|
Z_STR(function_name->u.constant) = lcname;
|
|
|
|
zend_stack_push(&CG(function_call_stack), (void *) &function, sizeof(zend_function *));
|
|
if (CG(context).nested_calls + 1 > CG(active_op_array)->nested_calls) {
|
|
CG(active_op_array)->nested_calls = CG(context).nested_calls + 1;
|
|
}
|
|
zend_do_extended_fcall_begin(TSRMLS_C);
|
|
return 0;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_begin_method_call(znode *left_bracket TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *last_op;
|
|
int last_op_number;
|
|
unsigned char *ptr = NULL;
|
|
|
|
zend_do_end_variable_parse(left_bracket, BP_VAR_R, 0 TSRMLS_CC);
|
|
zend_do_begin_variable_parse(TSRMLS_C);
|
|
|
|
last_op_number = get_next_op_number(CG(active_op_array))-1;
|
|
last_op = &CG(active_op_array)->opcodes[last_op_number];
|
|
|
|
if ((last_op->op2_type == IS_CONST) && (Z_TYPE(CONSTANT(last_op->op2.constant)) == IS_STRING) && (Z_STRLEN(CONSTANT(last_op->op2.constant)) == sizeof(ZEND_CLONE_FUNC_NAME)-1)
|
|
&& !zend_binary_strcasecmp(Z_STRVAL(CONSTANT(last_op->op2.constant)), Z_STRLEN(CONSTANT(last_op->op2.constant)), ZEND_CLONE_FUNC_NAME, sizeof(ZEND_CLONE_FUNC_NAME)-1)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot call __clone() method on objects - use 'clone $obj' instead");
|
|
}
|
|
|
|
if (last_op->opcode == ZEND_FETCH_OBJ_R) {
|
|
if (last_op->op2_type == IS_CONST) {
|
|
zval name;
|
|
name = CONSTANT(last_op->op2.constant);
|
|
if (Z_TYPE(name) != IS_STRING) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Method name must be a string");
|
|
}
|
|
Z_STR(name) = STR_DUP(Z_STR(name), 0);
|
|
FREE_POLYMORPHIC_CACHE_SLOT(last_op->op2.constant);
|
|
last_op->op2.constant =
|
|
zend_add_func_name_literal(CG(active_op_array), &name TSRMLS_CC);
|
|
GET_POLYMORPHIC_CACHE_SLOT(last_op->op2.constant);
|
|
}
|
|
last_op->opcode = ZEND_INIT_METHOD_CALL;
|
|
last_op->result_type = IS_UNUSED;
|
|
last_op->result.num = CG(context).nested_calls;
|
|
Z_LVAL(left_bracket->u.constant) = ZEND_INIT_FCALL_BY_NAME;
|
|
} else {
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_INIT_FCALL_BY_NAME;
|
|
opline->result.num = CG(context).nested_calls;
|
|
SET_UNUSED(opline->op1);
|
|
if (left_bracket->op_type == IS_CONST) {
|
|
opline->op2_type = IS_CONST;
|
|
opline->op2.constant = zend_add_func_name_literal(CG(active_op_array), &left_bracket->u.constant TSRMLS_CC);
|
|
GET_CACHE_SLOT(opline->op2.constant);
|
|
} else {
|
|
SET_NODE(opline->op2, left_bracket);
|
|
}
|
|
}
|
|
|
|
zend_stack_push(&CG(function_call_stack), (void *) &ptr, sizeof(zend_function *));
|
|
if (++CG(context).nested_calls > CG(active_op_array)->nested_calls) {
|
|
CG(active_op_array)->nested_calls = CG(context).nested_calls;
|
|
}
|
|
zend_do_extended_fcall_begin(TSRMLS_C);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_clone(znode *result, const znode *expr TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_CLONE;
|
|
SET_NODE(opline->op1, expr);
|
|
SET_UNUSED(opline->op2);
|
|
opline->result_type = IS_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
GET_NODE(result, opline->result);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_begin_dynamic_function_call(znode *function_name, int ns_call TSRMLS_DC) /* {{{ */
|
|
{
|
|
unsigned char *ptr = NULL;
|
|
zend_op *opline;
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
if (ns_call) {
|
|
/* In run-time PHP will check for function with full name and
|
|
internal function with short name */
|
|
opline->opcode = ZEND_INIT_NS_FCALL_BY_NAME;
|
|
opline->result.num = CG(context).nested_calls;
|
|
SET_UNUSED(opline->op1);
|
|
opline->op2_type = IS_CONST;
|
|
opline->op2.constant = zend_add_ns_func_name_literal(CG(active_op_array), &function_name->u.constant TSRMLS_CC);
|
|
GET_CACHE_SLOT(opline->op2.constant);
|
|
} else {
|
|
opline->opcode = ZEND_INIT_FCALL_BY_NAME;
|
|
opline->result.num = CG(context).nested_calls;
|
|
SET_UNUSED(opline->op1);
|
|
if (function_name->op_type == IS_CONST) {
|
|
opline->op2_type = IS_CONST;
|
|
opline->op2.constant = zend_add_func_name_literal(CG(active_op_array), &function_name->u.constant TSRMLS_CC);
|
|
GET_CACHE_SLOT(opline->op2.constant);
|
|
} else {
|
|
SET_NODE(opline->op2, function_name);
|
|
}
|
|
}
|
|
|
|
zend_stack_push(&CG(function_call_stack), (void *) &ptr, sizeof(zend_function *));
|
|
if (++CG(context).nested_calls > CG(active_op_array)->nested_calls) {
|
|
CG(active_op_array)->nested_calls = CG(context).nested_calls;
|
|
}
|
|
zend_do_extended_fcall_begin(TSRMLS_C);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_resolve_non_class_name(znode *element_name, zend_bool *check_namespace, zend_bool case_sensitive, HashTable *current_import_sub TSRMLS_DC) /* {{{ */
|
|
{
|
|
znode tmp;
|
|
int len;
|
|
zval *ns;
|
|
zend_string *lookup_name;
|
|
char *compound = memchr(Z_STRVAL(element_name->u.constant), '\\', Z_STRLEN(element_name->u.constant));
|
|
|
|
if (Z_STRVAL(element_name->u.constant)[0] == '\\') {
|
|
/* name starts with \ so it is known and unambiguos, nothing to do here but shorten it */
|
|
memmove(Z_STRVAL(element_name->u.constant), Z_STRVAL(element_name->u.constant)+1, Z_STRLEN(element_name->u.constant));
|
|
--Z_STRLEN(element_name->u.constant);
|
|
return;
|
|
}
|
|
|
|
if(!*check_namespace) {
|
|
return;
|
|
}
|
|
|
|
if (current_import_sub) {
|
|
len = Z_STRLEN(element_name->u.constant)+1;
|
|
if (case_sensitive) {
|
|
lookup_name = STR_INIT(Z_STRVAL(element_name->u.constant), len, 0);
|
|
} else {
|
|
lookup_name = STR_ALLOC(len, 0);
|
|
zend_str_tolower_copy(lookup_name->val, Z_STRVAL(element_name->u.constant), len);
|
|
}
|
|
/* Check if function/const matches imported name */
|
|
if ((ns = zend_hash_find(current_import_sub, lookup_name)) != NULL) {
|
|
zval_dtor(&element_name->u.constant);
|
|
zval_copy_ctor(&element_name->u.constant);
|
|
STR_FREE(lookup_name);
|
|
*check_namespace = 0;
|
|
return;
|
|
}
|
|
STR_FREE(lookup_name);
|
|
}
|
|
|
|
if (compound && CG(current_import)) {
|
|
len = compound - Z_STRVAL(element_name->u.constant);
|
|
/* namespace is always lowercase */
|
|
lookup_name = STR_ALLOC(len, 0);
|
|
zend_str_tolower_copy(lookup_name->val, Z_STRVAL(element_name->u.constant), len);
|
|
/* Check if first part of compound name is an import name */
|
|
if ((ns = zend_hash_find(CG(current_import), lookup_name)) != NULL) {
|
|
/* Substitute import name */
|
|
tmp.op_type = IS_CONST;
|
|
ZVAL_DUP(&tmp.u.constant, ns);
|
|
len += 1;
|
|
Z_STRLEN(element_name->u.constant) -= len;
|
|
memmove(Z_STRVAL(element_name->u.constant), Z_STRVAL(element_name->u.constant)+len, Z_STRLEN(element_name->u.constant)+1);
|
|
zend_do_build_namespace_name(&tmp, &tmp, element_name TSRMLS_CC);
|
|
*element_name = tmp;
|
|
STR_FREE(lookup_name);
|
|
*check_namespace = 0;
|
|
return;
|
|
}
|
|
STR_FREE(lookup_name);
|
|
}
|
|
|
|
if (Z_TYPE(CG(current_namespace)) != IS_UNDEF) {
|
|
tmp = *element_name;
|
|
Z_STR(tmp.u.constant) = STR_ALLOC(sizeof("\\")-1 + Z_STRLEN(element_name->u.constant) + Z_STRLEN(CG(current_namespace)), 0);
|
|
memcpy(Z_STRVAL(tmp.u.constant), Z_STRVAL(CG(current_namespace)), Z_STRLEN(CG(current_namespace)));
|
|
memcpy(&(Z_STRVAL(tmp.u.constant)[Z_STRLEN(CG(current_namespace))]), "\\", sizeof("\\")-1);
|
|
memcpy(&(Z_STRVAL(tmp.u.constant)[Z_STRLEN(CG(current_namespace)) + sizeof("\\")-1]), Z_STRVAL(element_name->u.constant), Z_STRLEN(element_name->u.constant)+1);
|
|
STR_RELEASE(Z_STR(element_name->u.constant));
|
|
*element_name = tmp;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_resolve_function_name(znode *element_name, zend_bool *check_namespace TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_resolve_non_class_name(element_name, check_namespace, 0, CG(current_import_function) TSRMLS_CC);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_resolve_const_name(znode *element_name, zend_bool *check_namespace TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_resolve_non_class_name(element_name, check_namespace, 1, CG(current_import_const) TSRMLS_CC);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_resolve_class_name(znode *result, znode *class_name, int is_static TSRMLS_DC) /* {{{ */
|
|
{
|
|
char *lcname;
|
|
int lctype;
|
|
znode constant_name;
|
|
|
|
lcname = zend_str_tolower_dup(Z_STRVAL(class_name->u.constant), Z_STRLEN(class_name->u.constant));
|
|
lctype = zend_get_class_fetch_type(lcname, strlen(lcname));
|
|
switch (lctype) {
|
|
case ZEND_FETCH_CLASS_SELF:
|
|
if (!CG(active_class_entry)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot access self::class when no class scope is active");
|
|
}
|
|
zval_dtor(&class_name->u.constant);
|
|
class_name->op_type = IS_CONST;
|
|
ZVAL_STR(&class_name->u.constant, STR_COPY(CG(active_class_entry)->name));
|
|
*result = *class_name;
|
|
break;
|
|
case ZEND_FETCH_CLASS_STATIC:
|
|
case ZEND_FETCH_CLASS_PARENT:
|
|
if (is_static) {
|
|
zend_error_noreturn(E_COMPILE_ERROR,
|
|
"%s::class cannot be used for compile-time class name resolution",
|
|
lctype == ZEND_FETCH_CLASS_STATIC ? "static" : "parent"
|
|
);
|
|
}
|
|
if (!CG(active_class_entry)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR,
|
|
"Cannot access %s::class when no class scope is active",
|
|
lctype == ZEND_FETCH_CLASS_STATIC ? "static" : "parent"
|
|
);
|
|
}
|
|
constant_name.op_type = IS_CONST;
|
|
ZVAL_STRINGL(&constant_name.u.constant, "class", sizeof("class")-1);
|
|
zend_do_fetch_constant(result, class_name, &constant_name, ZEND_RT, 1 TSRMLS_CC);
|
|
break;
|
|
case ZEND_FETCH_CLASS_DEFAULT:
|
|
zend_resolve_class_name(class_name TSRMLS_CC);
|
|
*result = *class_name;
|
|
break;
|
|
}
|
|
|
|
efree(lcname);
|
|
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_resolve_class_name(znode *class_name TSRMLS_DC) /* {{{ */
|
|
{
|
|
char *compound;
|
|
zend_string *lcname;
|
|
zval *ns;
|
|
znode tmp;
|
|
int len;
|
|
|
|
compound = memchr(Z_STRVAL(class_name->u.constant), '\\', Z_STRLEN(class_name->u.constant));
|
|
if (compound) {
|
|
/* This is a compound class name that contains namespace prefix */
|
|
if (Z_STRVAL(class_name->u.constant)[0] == '\\') {
|
|
/* The STRING name has "\" prefix */
|
|
memmove(Z_STRVAL(class_name->u.constant), Z_STRVAL(class_name->u.constant)+1, Z_STRLEN(class_name->u.constant)-1);
|
|
Z_STR(class_name->u.constant) = STR_REALLOC(
|
|
Z_STR(class_name->u.constant),
|
|
Z_STRLEN(class_name->u.constant) - 1, 0);
|
|
|
|
if (ZEND_FETCH_CLASS_DEFAULT != zend_get_class_fetch_type(Z_STRVAL(class_name->u.constant), Z_STRLEN(class_name->u.constant))) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "'\\%s' is an invalid class name", Z_STRVAL(class_name->u.constant));
|
|
}
|
|
} else {
|
|
if (CG(current_import)) {
|
|
len = compound - Z_STRVAL(class_name->u.constant);
|
|
lcname = STR_ALLOC(len, 0);
|
|
zend_str_tolower_copy(lcname->val, Z_STRVAL(class_name->u.constant), len);
|
|
/* Check if first part of compound name is an import name */
|
|
if ((ns = zend_hash_find(CG(current_import), lcname)) != NULL) {
|
|
/* Substitute import name */
|
|
tmp.op_type = IS_CONST;
|
|
ZVAL_DUP(&tmp.u.constant, ns);
|
|
len += 1;
|
|
Z_STRLEN(class_name->u.constant) -= len;
|
|
memmove(Z_STRVAL(class_name->u.constant), Z_STRVAL(class_name->u.constant)+len, Z_STRLEN(class_name->u.constant)+1);
|
|
zend_do_build_namespace_name(&tmp, &tmp, class_name TSRMLS_CC);
|
|
*class_name = tmp;
|
|
STR_FREE(lcname);
|
|
return;
|
|
}
|
|
STR_FREE(lcname);
|
|
}
|
|
/* Here name is not prefixed with \ and not imported */
|
|
if (Z_TYPE(CG(current_namespace)) != IS_UNDEF) {
|
|
tmp.op_type = IS_CONST;
|
|
ZVAL_DUP(&tmp.u.constant, &CG(current_namespace));
|
|
zend_do_build_namespace_name(&tmp, &tmp, class_name TSRMLS_CC);
|
|
*class_name = tmp;
|
|
}
|
|
}
|
|
} else if (CG(current_import) || Z_TYPE(CG(current_namespace)) != IS_UNDEF) {
|
|
/* this is a plain name (without \) */
|
|
lcname = STR_ALLOC(Z_STRLEN(class_name->u.constant), 0);
|
|
zend_str_tolower_copy(lcname->val, Z_STRVAL(class_name->u.constant), Z_STRLEN(class_name->u.constant));
|
|
|
|
if (CG(current_import) &&
|
|
(ns = zend_hash_find(CG(current_import), lcname)) != NULL) {
|
|
/* The given name is an import name. Substitute it. */
|
|
zval_dtor(&class_name->u.constant);
|
|
ZVAL_DUP(&class_name->u.constant, ns);
|
|
} else if (Z_TYPE(CG(current_namespace)) != IS_UNDEF) {
|
|
/* plain name, no import - prepend current namespace to it */
|
|
tmp.op_type = IS_CONST;
|
|
ZVAL_DUP(&tmp.u.constant, &CG(current_namespace));
|
|
zend_do_build_namespace_name(&tmp, &tmp, class_name TSRMLS_CC);
|
|
*class_name = tmp;
|
|
}
|
|
STR_FREE(lcname);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_fetch_class(znode *result, znode *class_name TSRMLS_DC) /* {{{ */
|
|
{
|
|
long fetch_class_op_number;
|
|
zend_op *opline;
|
|
|
|
fetch_class_op_number = get_next_op_number(CG(active_op_array));
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_FETCH_CLASS;
|
|
SET_UNUSED(opline->op1);
|
|
opline->extended_value = ZEND_FETCH_CLASS_DEFAULT;
|
|
CG(catch_begin) = fetch_class_op_number;
|
|
if (class_name->op_type == IS_CONST) {
|
|
int fetch_type;
|
|
|
|
fetch_type = zend_get_class_fetch_type(Z_STRVAL(class_name->u.constant), Z_STRLEN(class_name->u.constant));
|
|
switch (fetch_type) {
|
|
case ZEND_FETCH_CLASS_SELF:
|
|
case ZEND_FETCH_CLASS_PARENT:
|
|
case ZEND_FETCH_CLASS_STATIC:
|
|
SET_UNUSED(opline->op2);
|
|
opline->extended_value = fetch_type;
|
|
zval_dtor(&class_name->u.constant);
|
|
break;
|
|
default:
|
|
zend_resolve_class_name(class_name TSRMLS_CC);
|
|
opline->op2_type = IS_CONST;
|
|
opline->op2.constant =
|
|
zend_add_class_name_literal(CG(active_op_array), &class_name->u.constant TSRMLS_CC);
|
|
break;
|
|
}
|
|
} else {
|
|
SET_NODE(opline->op2, class_name);
|
|
}
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
opline->result_type = IS_VAR; /* FIXME: Hack so that INIT_FCALL_BY_NAME still knows this is a class */
|
|
GET_NODE(result, opline->result);
|
|
result->EA = opline->extended_value;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_label(znode *label TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_label dest;
|
|
|
|
if (!CG(context).labels) {
|
|
ALLOC_HASHTABLE(CG(context).labels);
|
|
zend_hash_init(CG(context).labels, 4, NULL, NULL, 0);
|
|
}
|
|
|
|
dest.brk_cont = CG(context).current_brk_cont;
|
|
dest.opline_num = get_next_op_number(CG(active_op_array));
|
|
|
|
if (zend_hash_add_mem(CG(context).labels, Z_STR(label->u.constant), &dest, sizeof(zend_label)) == NULL) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Label '%s' already defined", Z_STRVAL(label->u.constant));
|
|
}
|
|
|
|
/* Done with label now */
|
|
zval_dtor(&label->u.constant);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_resolve_goto_label(zend_op_array *op_array, zend_op *opline, int pass2 TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_label *dest;
|
|
long current, distance;
|
|
zval *label;
|
|
|
|
if (pass2) {
|
|
label = opline->op2.zv;
|
|
} else {
|
|
label = &CONSTANT_EX(op_array, opline->op2.constant);
|
|
}
|
|
if (CG(context).labels == NULL ||
|
|
(dest = zend_hash_find_ptr(CG(context).labels, Z_STR_P(label))) == NULL) {
|
|
|
|
if (pass2) {
|
|
CG(in_compilation) = 1;
|
|
CG(active_op_array) = op_array;
|
|
CG(zend_lineno) = opline->lineno;
|
|
zend_error_noreturn(E_COMPILE_ERROR, "'goto' to undefined label '%s'", Z_STRVAL_P(label));
|
|
} else {
|
|
/* Label is not defined. Delay to pass 2. */
|
|
INC_BPC(op_array);
|
|
return;
|
|
}
|
|
}
|
|
|
|
opline->op1.opline_num = dest->opline_num;
|
|
zval_dtor(label);
|
|
Z_TYPE_P(label) = IS_NULL;
|
|
|
|
/* Check that we are not moving into loop or switch */
|
|
current = opline->extended_value;
|
|
for (distance = 0; current != dest->brk_cont; distance++) {
|
|
if (current == -1) {
|
|
if (pass2) {
|
|
CG(in_compilation) = 1;
|
|
CG(active_op_array) = op_array;
|
|
CG(zend_lineno) = opline->lineno;
|
|
}
|
|
zend_error_noreturn(E_COMPILE_ERROR, "'goto' into loop or switch statement is disallowed");
|
|
}
|
|
current = op_array->brk_cont_array[current].parent;
|
|
}
|
|
|
|
if (distance == 0) {
|
|
/* Nothing to break out of, optimize to ZEND_JMP */
|
|
opline->opcode = ZEND_JMP;
|
|
opline->extended_value = 0;
|
|
SET_UNUSED(opline->op2);
|
|
} else {
|
|
/* Set real break distance */
|
|
ZVAL_LONG(label, distance);
|
|
}
|
|
|
|
if (pass2) {
|
|
DEC_BPC(op_array);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_goto(const znode *label TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_GOTO;
|
|
opline->extended_value = CG(context).current_brk_cont;
|
|
SET_UNUSED(opline->op1);
|
|
SET_NODE(opline->op2, label);
|
|
zend_resolve_goto_label(CG(active_op_array), opline, 0 TSRMLS_CC);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_release_labels(int temporary TSRMLS_DC) /* {{{ */
|
|
{
|
|
if (CG(context).labels) {
|
|
zend_hash_destroy(CG(context).labels);
|
|
FREE_HASHTABLE(CG(context).labels);
|
|
CG(context).labels = NULL;
|
|
}
|
|
if (!temporary && !zend_stack_is_empty(&CG(context_stack))) {
|
|
zend_compiler_context *ctx;
|
|
|
|
zend_stack_top(&CG(context_stack), (void**)&ctx);
|
|
CG(context) = *ctx;
|
|
zend_stack_del_top(&CG(context_stack));
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_build_full_name(znode *result, znode *prefix, znode *name, int is_class_member TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_uint length;
|
|
|
|
if (!result) {
|
|
result = prefix;
|
|
} else {
|
|
*result = *prefix;
|
|
}
|
|
|
|
if (is_class_member) {
|
|
int old_len = Z_STRLEN(result->u.constant);
|
|
length = sizeof("::")-1 + old_len + Z_STRLEN(name->u.constant);
|
|
Z_STR(result->u.constant) = STR_REALLOC(Z_STR(result->u.constant), length, 0);
|
|
memcpy(&Z_STRVAL(result->u.constant)[old_len], "::", sizeof("::")-1);
|
|
memcpy(&Z_STRVAL(result->u.constant)[old_len + sizeof("::")-1], Z_STRVAL(name->u.constant), Z_STRLEN(name->u.constant)+1);
|
|
STR_RELEASE(Z_STR(name->u.constant));
|
|
} else {
|
|
int old_len = Z_STRLEN(result->u.constant);
|
|
length = sizeof("\\")-1 + old_len + Z_STRLEN(name->u.constant);
|
|
Z_STR(result->u.constant) = STR_REALLOC(Z_STR(result->u.constant), length, 0);
|
|
memcpy(&Z_STRVAL(result->u.constant)[old_len], "\\", sizeof("\\")-1);
|
|
memcpy(&Z_STRVAL(result->u.constant)[old_len + sizeof("\\")-1], Z_STRVAL(name->u.constant), Z_STRLEN(name->u.constant)+1);
|
|
STR_RELEASE(Z_STR(name->u.constant));
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
int zend_do_begin_class_member_function_call(znode *class_name, znode *method_name TSRMLS_DC) /* {{{ */
|
|
{
|
|
znode class_node;
|
|
unsigned char *ptr = NULL;
|
|
zend_op *opline;
|
|
|
|
if (method_name->op_type == IS_CONST) {
|
|
char *lcname;
|
|
if (Z_TYPE(method_name->u.constant) != IS_STRING) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Method name must be a string");
|
|
}
|
|
lcname = zend_str_tolower_dup(Z_STRVAL(method_name->u.constant), Z_STRLEN(method_name->u.constant));
|
|
if ((sizeof(ZEND_CONSTRUCTOR_FUNC_NAME)-1) == Z_STRLEN(method_name->u.constant) &&
|
|
memcmp(lcname, ZEND_CONSTRUCTOR_FUNC_NAME, sizeof(ZEND_CONSTRUCTOR_FUNC_NAME)-1) == 0) {
|
|
zval_dtor(&method_name->u.constant);
|
|
method_name->op_type = IS_UNUSED;
|
|
}
|
|
efree(lcname);
|
|
}
|
|
|
|
if (class_name->op_type == IS_CONST &&
|
|
ZEND_FETCH_CLASS_DEFAULT == zend_get_class_fetch_type(Z_STRVAL(class_name->u.constant), Z_STRLEN(class_name->u.constant))) {
|
|
zend_resolve_class_name(class_name TSRMLS_CC);
|
|
class_node = *class_name;
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
} else {
|
|
zend_do_fetch_class(&class_node, class_name TSRMLS_CC);
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->extended_value = class_node.EA ;
|
|
}
|
|
opline->opcode = ZEND_INIT_STATIC_METHOD_CALL;
|
|
opline->result.num = CG(context).nested_calls;
|
|
if (class_node.op_type == IS_CONST) {
|
|
opline->op1_type = IS_CONST;
|
|
opline->op1.constant =
|
|
zend_add_class_name_literal(CG(active_op_array), &class_node.u.constant TSRMLS_CC);
|
|
} else {
|
|
SET_NODE(opline->op1, &class_node);
|
|
}
|
|
if (method_name->op_type == IS_CONST) {
|
|
opline->op2_type = IS_CONST;
|
|
opline->op2.constant =
|
|
zend_add_func_name_literal(CG(active_op_array), &method_name->u.constant TSRMLS_CC);
|
|
if (opline->op1_type == IS_CONST) {
|
|
GET_CACHE_SLOT(opline->op2.constant);
|
|
} else {
|
|
GET_POLYMORPHIC_CACHE_SLOT(opline->op2.constant);
|
|
}
|
|
} else {
|
|
SET_NODE(opline->op2, method_name);
|
|
}
|
|
|
|
zend_stack_push(&CG(function_call_stack), (void *) &ptr, sizeof(zend_function *));
|
|
if (++CG(context).nested_calls > CG(active_op_array)->nested_calls) {
|
|
CG(active_op_array)->nested_calls = CG(context).nested_calls;
|
|
}
|
|
zend_do_extended_fcall_begin(TSRMLS_C);
|
|
return 1; /* Dynamic */
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_end_function_call(znode *function_name, znode *result, const znode *argument_list, int is_method, int is_dynamic_fcall TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
|
|
if (is_method && function_name && function_name->op_type == IS_UNUSED) {
|
|
/* clone */
|
|
if (Z_LVAL(argument_list->u.constant) != 0) {
|
|
zend_error(E_WARNING, "Clone method does not require arguments");
|
|
}
|
|
opline = &CG(active_op_array)->opcodes[Z_LVAL(function_name->u.constant)];
|
|
} else {
|
|
zend_function **function_ptr_ptr;
|
|
zend_stack_top(&CG(function_call_stack), (void **) &function_ptr_ptr);
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
if (*function_ptr_ptr) {
|
|
opline->opcode = ZEND_DO_FCALL;
|
|
SET_NODE(opline->op1, function_name);
|
|
SET_UNUSED(opline->op2);
|
|
opline->op2.num = CG(context).nested_calls;
|
|
//??? CALCULATE_LITERAL_HASH(opline->op1.constant);
|
|
GET_CACHE_SLOT(opline->op1.constant);
|
|
} else {
|
|
opline->opcode = ZEND_DO_FCALL_BY_NAME;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
opline->op2.num = --CG(context).nested_calls;
|
|
|
|
/* This would normally be a ZEND_DO_FCALL, but was forced to use
|
|
* ZEND_DO_FCALL_BY_NAME due to a ... argument. In this case we need to
|
|
* free the function_name */
|
|
if (!is_method && !is_dynamic_fcall && function_name->op_type==IS_CONST) {
|
|
zval_dtor(&function_name->u.constant);
|
|
}
|
|
}
|
|
}
|
|
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
opline->result_type = IS_VAR;
|
|
GET_NODE(result, opline->result);
|
|
|
|
zend_stack_del_top(&CG(function_call_stack));
|
|
opline->extended_value = Z_LVAL(argument_list->u.constant);
|
|
|
|
if (CG(context).used_stack + 1 > CG(active_op_array)->used_stack) {
|
|
CG(active_op_array)->used_stack = CG(context).used_stack + 1;
|
|
}
|
|
CG(context).used_stack -= Z_LVAL(argument_list->u.constant);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_pass_param(znode *param, zend_uchar op, int offset TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
int original_op = op;
|
|
zend_function **function_ptr_ptr, *function_ptr;
|
|
int send_by_reference = 0;
|
|
int send_function = 0;
|
|
|
|
zend_stack_top(&CG(function_call_stack), (void **) &function_ptr_ptr);
|
|
function_ptr = *function_ptr_ptr;
|
|
|
|
if (original_op == ZEND_SEND_REF) {
|
|
if (function_ptr &&
|
|
function_ptr->common.function_name &&
|
|
function_ptr->common.type == ZEND_USER_FUNCTION &&
|
|
!ARG_SHOULD_BE_SENT_BY_REF(function_ptr, (zend_uint) offset)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR,
|
|
"Call-time pass-by-reference has been removed; "
|
|
"If you would like to pass argument by reference, modify the declaration of %s().",
|
|
function_ptr->common.function_name);
|
|
} else {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Call-time pass-by-reference has been removed");
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (function_ptr) {
|
|
if (ARG_MAY_BE_SENT_BY_REF(function_ptr, (zend_uint) offset)) {
|
|
if (op == ZEND_SEND_VAR && param->op_type & (IS_VAR|IS_CV)) {
|
|
send_by_reference = ZEND_ARG_SEND_BY_REF;
|
|
if (zend_is_function_or_method_call(param)) {
|
|
/* Method call */
|
|
op = ZEND_SEND_VAR_NO_REF;
|
|
send_function = ZEND_ARG_SEND_FUNCTION | ZEND_ARG_SEND_SILENT;
|
|
}
|
|
} else {
|
|
op = ZEND_SEND_VAL;
|
|
}
|
|
} else if (ARG_SHOULD_BE_SENT_BY_REF(function_ptr, (zend_uint) offset)) {
|
|
send_by_reference = ZEND_ARG_SEND_BY_REF;
|
|
}
|
|
}
|
|
|
|
if (op == ZEND_SEND_VAR && zend_is_function_or_method_call(param)) {
|
|
/* Method call */
|
|
op = ZEND_SEND_VAR_NO_REF;
|
|
send_function = ZEND_ARG_SEND_FUNCTION;
|
|
} else if (op == ZEND_SEND_VAL && (param->op_type & (IS_VAR|IS_CV))) {
|
|
op = ZEND_SEND_VAR_NO_REF;
|
|
}
|
|
|
|
if (op!=ZEND_SEND_VAR_NO_REF && send_by_reference==ZEND_ARG_SEND_BY_REF) {
|
|
/* change to passing by reference */
|
|
switch (param->op_type) {
|
|
case IS_VAR:
|
|
case IS_CV:
|
|
op = ZEND_SEND_REF;
|
|
break;
|
|
default:
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Only variables can be passed by reference");
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (original_op == ZEND_SEND_VAR) {
|
|
switch (op) {
|
|
case ZEND_SEND_VAR_NO_REF:
|
|
zend_do_end_variable_parse(param, BP_VAR_R, 0 TSRMLS_CC);
|
|
break;
|
|
case ZEND_SEND_VAR:
|
|
if (function_ptr) {
|
|
zend_do_end_variable_parse(param, BP_VAR_R, 0 TSRMLS_CC);
|
|
} else {
|
|
zend_do_end_variable_parse(param, BP_VAR_FUNC_ARG, offset TSRMLS_CC);
|
|
}
|
|
break;
|
|
case ZEND_SEND_REF:
|
|
zend_do_end_variable_parse(param, BP_VAR_W, 0 TSRMLS_CC);
|
|
break;
|
|
}
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
if (op == ZEND_SEND_VAR_NO_REF) {
|
|
if (function_ptr) {
|
|
opline->extended_value = ZEND_ARG_COMPILE_TIME_BOUND | send_by_reference | send_function;
|
|
} else {
|
|
opline->extended_value = send_function;
|
|
}
|
|
} else {
|
|
if (function_ptr) {
|
|
opline->extended_value = ZEND_DO_FCALL;
|
|
} else {
|
|
opline->extended_value = ZEND_DO_FCALL_BY_NAME;
|
|
}
|
|
}
|
|
opline->opcode = op;
|
|
SET_NODE(opline->op1, param);
|
|
opline->op2.opline_num = offset;
|
|
SET_UNUSED(opline->op2);
|
|
|
|
if (++CG(context).used_stack > CG(active_op_array)->used_stack) {
|
|
CG(active_op_array)->used_stack = CG(context).used_stack;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_unpack_params(znode *params, int offset TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
zend_function **function_ptr_ptr;
|
|
|
|
zend_stack_top(&CG(function_call_stack), (void **) &function_ptr_ptr);
|
|
if (*function_ptr_ptr) {
|
|
/* If argument unpacking is used argument numbers and sending modes can no longer be
|
|
* computed at compile time, thus we need access to EX(call). In order to have it we
|
|
* retroactively emit a ZEND_INIT_FCALL_BY_NAME opcode. */
|
|
zval func_name;
|
|
ZVAL_STR(&func_name, STR_COPY((*function_ptr_ptr)->common.function_name));
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_INIT_FCALL_BY_NAME;
|
|
opline->result.num = CG(context).nested_calls;
|
|
SET_UNUSED(opline->op1);
|
|
opline->op2_type = IS_CONST;
|
|
opline->op2.constant = zend_add_func_name_literal(CG(active_op_array), &func_name TSRMLS_CC);
|
|
GET_CACHE_SLOT(opline->op2.constant);
|
|
|
|
++CG(context).nested_calls;
|
|
*function_ptr_ptr = NULL;
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_SEND_UNPACK;
|
|
SET_NODE(opline->op1, params);
|
|
SET_UNUSED(opline->op2);
|
|
opline->op2.num = (zend_uint) offset;
|
|
}
|
|
/* }}} */
|
|
|
|
static int generate_free_switch_expr(const zend_switch_entry *switch_entry TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
|
|
if (switch_entry->cond.op_type != IS_VAR && switch_entry->cond.op_type != IS_TMP_VAR) {
|
|
return (switch_entry->cond.op_type == IS_UNUSED);
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = (switch_entry->cond.op_type == IS_TMP_VAR) ? ZEND_FREE : ZEND_SWITCH_FREE;
|
|
SET_NODE(opline->op1, &switch_entry->cond);
|
|
SET_UNUSED(opline->op2);
|
|
|
|
return 0;
|
|
}
|
|
/* }}} */
|
|
|
|
static int generate_free_foreach_copy(const zend_op *foreach_copy TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
|
|
/* If we reach the separator then stop applying the stack */
|
|
if (foreach_copy->result_type == IS_UNUSED) {
|
|
return 1;
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = (foreach_copy->result_type == IS_TMP_VAR) ? ZEND_FREE : ZEND_SWITCH_FREE;
|
|
COPY_NODE(opline->op1, foreach_copy->result);
|
|
SET_UNUSED(opline->op2);
|
|
|
|
return 0;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_return(znode *expr, int do_end_vparse TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
int start_op_number, end_op_number;
|
|
zend_bool returns_reference = (CG(active_op_array)->fn_flags & ZEND_ACC_RETURN_REFERENCE) != 0;
|
|
|
|
/* The error for use of return inside a generator is thrown in pass_two. */
|
|
|
|
if (do_end_vparse) {
|
|
if (returns_reference && !zend_is_function_or_method_call(expr)) {
|
|
zend_do_end_variable_parse(expr, BP_VAR_W, 0 TSRMLS_CC);
|
|
} else {
|
|
zend_do_end_variable_parse(expr, BP_VAR_R, 0 TSRMLS_CC);
|
|
}
|
|
}
|
|
|
|
start_op_number = get_next_op_number(CG(active_op_array));
|
|
|
|
#ifdef ZTS
|
|
zend_stack_apply_with_argument(&CG(switch_cond_stack), ZEND_STACK_APPLY_TOPDOWN, (int (*)(void *element, void *)) generate_free_switch_expr TSRMLS_CC);
|
|
zend_stack_apply_with_argument(&CG(foreach_copy_stack), ZEND_STACK_APPLY_TOPDOWN, (int (*)(void *element, void *)) generate_free_foreach_copy TSRMLS_CC);
|
|
#else
|
|
zend_stack_apply(&CG(switch_cond_stack), ZEND_STACK_APPLY_TOPDOWN, (int (*)(void *element)) generate_free_switch_expr);
|
|
zend_stack_apply(&CG(foreach_copy_stack), ZEND_STACK_APPLY_TOPDOWN, (int (*)(void *element)) generate_free_foreach_copy);
|
|
#endif
|
|
|
|
end_op_number = get_next_op_number(CG(active_op_array));
|
|
while (start_op_number < end_op_number) {
|
|
CG(active_op_array)->opcodes[start_op_number].extended_value |= EXT_TYPE_FREE_ON_RETURN;
|
|
start_op_number++;
|
|
}
|
|
|
|
if (CG(context).in_finally) {
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_DISCARD_EXCEPTION;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = returns_reference ? ZEND_RETURN_BY_REF : ZEND_RETURN;
|
|
|
|
if (expr) {
|
|
SET_NODE(opline->op1, expr);
|
|
|
|
if (!do_end_vparse) {
|
|
opline->extended_value = ZEND_RETURNS_VALUE;
|
|
} else if (zend_is_function_or_method_call(expr)) {
|
|
opline->extended_value = ZEND_RETURNS_FUNCTION;
|
|
}
|
|
} else {
|
|
opline->op1_type = IS_CONST;
|
|
LITERAL_NULL(opline->op1);
|
|
}
|
|
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_yield(znode *result, znode *value, const znode *key, zend_bool is_variable TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
|
|
if (!CG(active_op_array)->function_name) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "The \"yield\" expression can only be used inside a function");
|
|
}
|
|
|
|
CG(active_op_array)->fn_flags |= ZEND_ACC_GENERATOR;
|
|
|
|
if (is_variable) {
|
|
if ((CG(active_op_array)->fn_flags & ZEND_ACC_RETURN_REFERENCE) && !zend_is_function_or_method_call(value)) {
|
|
zend_do_end_variable_parse(value, BP_VAR_W, 0 TSRMLS_CC);
|
|
} else {
|
|
zend_do_end_variable_parse(value, BP_VAR_R, 0 TSRMLS_CC);
|
|
}
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_YIELD;
|
|
|
|
if (value) {
|
|
SET_NODE(opline->op1, value);
|
|
|
|
if (is_variable && zend_is_function_or_method_call(value)) {
|
|
opline->extended_value = ZEND_RETURNS_FUNCTION;
|
|
}
|
|
} else {
|
|
SET_UNUSED(opline->op1);
|
|
}
|
|
|
|
if (key) {
|
|
SET_NODE(opline->op2, key);
|
|
} else {
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
|
|
opline->result_type = IS_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
GET_NODE(result, opline->result);
|
|
}
|
|
/* }}} */
|
|
|
|
static int zend_add_try_element(zend_uint try_op TSRMLS_DC) /* {{{ */
|
|
{
|
|
int try_catch_offset = CG(active_op_array)->last_try_catch++;
|
|
|
|
CG(active_op_array)->try_catch_array = erealloc(CG(active_op_array)->try_catch_array, sizeof(zend_try_catch_element)*CG(active_op_array)->last_try_catch);
|
|
CG(active_op_array)->try_catch_array[try_catch_offset].try_op = try_op;
|
|
CG(active_op_array)->try_catch_array[try_catch_offset].catch_op = 0;
|
|
CG(active_op_array)->try_catch_array[try_catch_offset].finally_op = 0;
|
|
CG(active_op_array)->try_catch_array[try_catch_offset].finally_end = 0;
|
|
return try_catch_offset;
|
|
}
|
|
/* }}} */
|
|
|
|
static void zend_add_catch_element(int offset, zend_uint catch_op TSRMLS_DC) /* {{{ */
|
|
{
|
|
CG(active_op_array)->try_catch_array[offset].catch_op = catch_op;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_first_catch(znode *open_parentheses TSRMLS_DC) /* {{{ */
|
|
{
|
|
open_parentheses->u.op.opline_num = get_next_op_number(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_initialize_try_catch_element(znode *catch_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
int jmp_op_number = get_next_op_number(CG(active_op_array));
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
zend_llist jmp_list;
|
|
zend_llist *jmp_list_ptr;
|
|
|
|
opline->opcode = ZEND_JMP;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
/* save for backpatching */
|
|
|
|
zend_llist_init(&jmp_list, sizeof(int), NULL, 0);
|
|
zend_stack_push(&CG(bp_stack), (void *) &jmp_list, sizeof(zend_llist));
|
|
zend_stack_top(&CG(bp_stack), (void **) &jmp_list_ptr);
|
|
zend_llist_add_element(jmp_list_ptr, &jmp_op_number);
|
|
|
|
catch_token->EA = get_next_op_number(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_mark_last_catch(const znode *first_catch, const znode *last_additional_catch TSRMLS_DC) /* {{{ */
|
|
{
|
|
CG(active_op_array)->last--;
|
|
zend_do_if_end(TSRMLS_C);
|
|
if (last_additional_catch->u.op.opline_num == -1) {
|
|
CG(active_op_array)->opcodes[first_catch->u.op.opline_num].result.num = 1;
|
|
CG(active_op_array)->opcodes[first_catch->u.op.opline_num].extended_value = get_next_op_number(CG(active_op_array));
|
|
} else {
|
|
CG(active_op_array)->opcodes[last_additional_catch->u.op.opline_num].result.num = 1;
|
|
CG(active_op_array)->opcodes[last_additional_catch->u.op.opline_num].extended_value = get_next_op_number(CG(active_op_array));
|
|
}
|
|
DEC_BPC(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_try(znode *try_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
try_token->u.op.opline_num = zend_add_try_element(get_next_op_number(CG(active_op_array)) TSRMLS_CC);
|
|
INC_BPC(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_finally(znode *finally_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
finally_token->u.op.opline_num = get_next_op_number(CG(active_op_array));
|
|
/* call the the "finally" block */
|
|
opline->opcode = ZEND_FAST_CALL;
|
|
SET_UNUSED(opline->op1);
|
|
opline->op1.opline_num = finally_token->u.op.opline_num + 1;
|
|
SET_UNUSED(opline->op2);
|
|
/* jump to code after the "finally" block,
|
|
* the actual jump address is going to be set in zend_do_end_finally()
|
|
*/
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_JMP;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
|
|
CG(context).in_finally++;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_begin_catch(znode *catch_token, znode *class_name, znode *catch_var, znode *first_catch TSRMLS_DC) /* {{{ */
|
|
{
|
|
long catch_op_number;
|
|
zend_op *opline;
|
|
znode catch_class;
|
|
|
|
if (class_name->op_type == IS_CONST &&
|
|
ZEND_FETCH_CLASS_DEFAULT == zend_get_class_fetch_type(Z_STRVAL(class_name->u.constant), Z_STRLEN(class_name->u.constant))) {
|
|
zend_resolve_class_name(class_name TSRMLS_CC);
|
|
catch_class = *class_name;
|
|
} else {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Bad class name in the catch statement");
|
|
}
|
|
|
|
catch_op_number = get_next_op_number(CG(active_op_array));
|
|
if (first_catch) {
|
|
first_catch->u.op.opline_num = catch_op_number;
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_CATCH;
|
|
opline->op1_type = IS_CONST;
|
|
opline->op1.constant = zend_add_class_name_literal(CG(active_op_array), &catch_class.u.constant TSRMLS_CC);
|
|
opline->op2_type = IS_CV;
|
|
opline->op2.var = lookup_cv(CG(active_op_array), Z_STR(catch_var->u.constant) TSRMLS_CC);
|
|
Z_STR(catch_var->u.constant) = CG(active_op_array)->vars[opline->op2.var];
|
|
opline->result.num = 0; /* 1 means it's the last catch in the block */
|
|
|
|
catch_token->u.op.opline_num = catch_op_number;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_end_catch(znode *catch_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
int jmp_op_number = get_next_op_number(CG(active_op_array));
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
zend_llist *jmp_list_ptr;
|
|
|
|
opline->opcode = ZEND_JMP;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
/* save for backpatching */
|
|
|
|
zend_stack_top(&CG(bp_stack), (void **) &jmp_list_ptr);
|
|
zend_llist_add_element(jmp_list_ptr, &jmp_op_number);
|
|
|
|
CG(active_op_array)->opcodes[catch_token->u.op.opline_num].extended_value = get_next_op_number(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_bind_catch(znode *try_token, znode *catch_token TSRMLS_DC) /* {{{ */ {
|
|
if (catch_token->op_type != IS_UNUSED) {
|
|
zend_add_catch_element(try_token->u.op.opline_num, catch_token->EA TSRMLS_CC);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_end_finally(znode *try_token, znode* catch_token, znode *finally_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
if (catch_token->op_type == IS_UNUSED && finally_token->op_type == IS_UNUSED) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use try without catch or finally");
|
|
}
|
|
if (finally_token->op_type != IS_UNUSED) {
|
|
zend_op *opline;
|
|
|
|
CG(active_op_array)->try_catch_array[try_token->u.op.opline_num].finally_op = finally_token->u.op.opline_num + 1;
|
|
CG(active_op_array)->try_catch_array[try_token->u.op.opline_num].finally_end = get_next_op_number(CG(active_op_array));
|
|
CG(active_op_array)->has_finally_block = 1;
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_FAST_RET;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
|
|
CG(active_op_array)->opcodes[finally_token->u.op.opline_num].op1.opline_num = get_next_op_number(CG(active_op_array));
|
|
|
|
CG(context).in_finally--;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_throw(const znode *expr TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_THROW;
|
|
SET_NODE(opline->op1, expr);
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API void function_add_ref(zend_function *function) /* {{{ */
|
|
{
|
|
if (function->type == ZEND_USER_FUNCTION) {
|
|
zend_op_array *op_array = &function->op_array;
|
|
|
|
(*op_array->refcount)++;
|
|
if (op_array->static_variables) {
|
|
HashTable *static_variables = op_array->static_variables;
|
|
|
|
ALLOC_HASHTABLE(op_array->static_variables);
|
|
zend_hash_init(op_array->static_variables, zend_hash_num_elements(static_variables), NULL, ZVAL_PTR_DTOR, 0);
|
|
zend_hash_copy(op_array->static_variables, static_variables, zval_add_ref);
|
|
}
|
|
op_array->run_time_cache = NULL;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
static void do_inherit_parent_constructor(zend_class_entry *ce) /* {{{ */
|
|
{
|
|
zend_function *function, *new_function;
|
|
|
|
if (!ce->parent) {
|
|
return;
|
|
}
|
|
|
|
/* You cannot change create_object */
|
|
ce->create_object = ce->parent->create_object;
|
|
|
|
/* Inherit special functions if needed */
|
|
if (!ce->get_iterator) {
|
|
ce->get_iterator = ce->parent->get_iterator;
|
|
}
|
|
if (!ce->iterator_funcs.funcs) {
|
|
ce->iterator_funcs.funcs = ce->parent->iterator_funcs.funcs;
|
|
}
|
|
if (!ce->__get) {
|
|
ce->__get = ce->parent->__get;
|
|
}
|
|
if (!ce->__set) {
|
|
ce->__set = ce->parent->__set;
|
|
}
|
|
if (!ce->__unset) {
|
|
ce->__unset = ce->parent->__unset;
|
|
}
|
|
if (!ce->__isset) {
|
|
ce->__isset = ce->parent->__isset;
|
|
}
|
|
if (!ce->__call) {
|
|
ce->__call = ce->parent->__call;
|
|
}
|
|
if (!ce->__callstatic) {
|
|
ce->__callstatic = ce->parent->__callstatic;
|
|
}
|
|
if (!ce->__tostring) {
|
|
ce->__tostring = ce->parent->__tostring;
|
|
}
|
|
if (!ce->clone) {
|
|
ce->clone = ce->parent->clone;
|
|
}
|
|
if(!ce->serialize) {
|
|
ce->serialize = ce->parent->serialize;
|
|
}
|
|
if(!ce->unserialize) {
|
|
ce->unserialize = ce->parent->unserialize;
|
|
}
|
|
if (!ce->destructor) {
|
|
ce->destructor = ce->parent->destructor;
|
|
}
|
|
if (ce->constructor) {
|
|
if (ce->parent->constructor && ce->parent->constructor->common.fn_flags & ZEND_ACC_FINAL) {
|
|
zend_error(E_ERROR, "Cannot override final %s::%s() with %s::%s()",
|
|
ce->parent->name->val, ce->parent->constructor->common.function_name->val,
|
|
ce->name->val, ce->constructor->common.function_name->val
|
|
);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if ((function = zend_hash_str_find_ptr(&ce->parent->function_table, ZEND_CONSTRUCTOR_FUNC_NAME, sizeof(ZEND_CONSTRUCTOR_FUNC_NAME)-1)) != NULL) {
|
|
/* inherit parent's constructor */
|
|
if (function->type == ZEND_INTERNAL_FUNCTION) {
|
|
new_function = pemalloc(sizeof(zend_internal_function), 1);
|
|
memcpy(new_function, function, sizeof(zend_internal_function));
|
|
} else {
|
|
new_function = emalloc(sizeof(zend_op_array));
|
|
memcpy(new_function, function, sizeof(zend_op_array));
|
|
}
|
|
zend_hash_str_update_ptr(&ce->function_table, ZEND_CONSTRUCTOR_FUNC_NAME, sizeof(ZEND_CONSTRUCTOR_FUNC_NAME)-1, new_function);
|
|
function_add_ref(new_function);
|
|
} else {
|
|
/* Don't inherit the old style constructor if we already have the new style constructor */
|
|
zend_string *lc_class_name;
|
|
zend_string *lc_parent_class_name;
|
|
|
|
lc_class_name = STR_ALLOC(ce->name->len, 0);
|
|
zend_str_tolower_copy(lc_class_name->val, ce->name->val, ce->name->len);
|
|
if (!zend_hash_exists(&ce->function_table, lc_class_name)) {
|
|
lc_parent_class_name = STR_ALLOC(ce->parent->name->len, 0);
|
|
zend_str_tolower_copy(lc_parent_class_name->val, ce->parent->name->val, ce->parent->name->len);
|
|
if (!zend_hash_exists(&ce->function_table, lc_parent_class_name) &&
|
|
(function = zend_hash_find_ptr(&ce->parent->function_table, lc_parent_class_name)) != NULL) {
|
|
if (function->common.fn_flags & ZEND_ACC_CTOR) {
|
|
/* inherit parent's constructor */
|
|
new_function = pemalloc(sizeof(zend_function), function->type == ZEND_INTERNAL_FUNCTION);
|
|
memcpy(new_function, function, sizeof(zend_function));
|
|
zend_hash_update_ptr(&ce->function_table, lc_parent_class_name, new_function);
|
|
function_add_ref(new_function);
|
|
}
|
|
}
|
|
STR_RELEASE(lc_parent_class_name);
|
|
}
|
|
STR_FREE(lc_class_name);
|
|
}
|
|
ce->constructor = ce->parent->constructor;
|
|
}
|
|
/* }}} */
|
|
|
|
char *zend_visibility_string(zend_uint fn_flags) /* {{{ */
|
|
{
|
|
if (fn_flags & ZEND_ACC_PRIVATE) {
|
|
return "private";
|
|
}
|
|
if (fn_flags & ZEND_ACC_PROTECTED) {
|
|
return "protected";
|
|
}
|
|
if (fn_flags & ZEND_ACC_PUBLIC) {
|
|
return "public";
|
|
}
|
|
return "";
|
|
}
|
|
/* }}} */
|
|
|
|
static void do_inherit_method(zval *zv) /* {{{ */
|
|
{
|
|
zend_function *old_function = Z_PTR_P(zv);
|
|
zend_function *new_function;
|
|
|
|
if (old_function->type == ZEND_INTERNAL_FUNCTION) {
|
|
new_function = pemalloc(sizeof(zend_internal_function), 1);
|
|
memcpy(new_function, old_function, sizeof(zend_internal_function));
|
|
} else {
|
|
new_function = emalloc(sizeof(zend_op_array));
|
|
memcpy(new_function, old_function, sizeof(zend_op_array));
|
|
}
|
|
/* The class entry of the derived function intentionally remains the same
|
|
* as that of the parent class. That allows us to know in which context
|
|
* we're running, and handle private method calls properly.
|
|
*/
|
|
function_add_ref(new_function);
|
|
Z_PTR_P(zv) = new_function;
|
|
}
|
|
/* }}} */
|
|
|
|
static zend_bool zend_do_perform_implementation_check(const zend_function *fe, const zend_function *proto TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_uint i, num_args;
|
|
|
|
/* If it's a user function then arg_info == NULL means we don't have any parameters but
|
|
* we still need to do the arg number checks. We are only willing to ignore this for internal
|
|
* functions because extensions don't always define arg_info.
|
|
*/
|
|
if (!proto || (!proto->common.arg_info && proto->common.type != ZEND_USER_FUNCTION)) {
|
|
return 1;
|
|
}
|
|
|
|
/* Checks for constructors only if they are declared in an interface,
|
|
* or explicitly marked as abstract
|
|
*/
|
|
if ((fe->common.fn_flags & ZEND_ACC_CTOR)
|
|
&& ((proto->common.scope->ce_flags & ZEND_ACC_INTERFACE) == 0
|
|
&& (proto->common.fn_flags & ZEND_ACC_ABSTRACT) == 0)) {
|
|
return 1;
|
|
}
|
|
|
|
/* If both methods are private do not enforce a signature */
|
|
if ((fe->common.fn_flags & ZEND_ACC_PRIVATE) && (proto->common.fn_flags & ZEND_ACC_PRIVATE)) {
|
|
return 1;
|
|
}
|
|
|
|
/* check number of arguments */
|
|
if (proto->common.required_num_args < fe->common.required_num_args
|
|
|| proto->common.num_args > fe->common.num_args) {
|
|
return 0;
|
|
}
|
|
|
|
/* by-ref constraints on return values are covariant */
|
|
if ((proto->common.fn_flags & ZEND_ACC_RETURN_REFERENCE)
|
|
&& !(fe->common.fn_flags & ZEND_ACC_RETURN_REFERENCE)) {
|
|
return 0;
|
|
}
|
|
|
|
if ((proto->common.fn_flags & ZEND_ACC_VARIADIC)
|
|
&& !(fe->common.fn_flags & ZEND_ACC_VARIADIC)) {
|
|
return 0;
|
|
}
|
|
|
|
/* For variadic functions any additional (optional) arguments that were added must be
|
|
* checked against the signature of the variadic argument, so in this case we have to
|
|
* go through all the parameters of the function and not just those present in the
|
|
* prototype. */
|
|
num_args = proto->common.num_args;
|
|
if ((fe->common.fn_flags & ZEND_ACC_VARIADIC)
|
|
&& fe->common.num_args > proto->common.num_args) {
|
|
num_args = fe->common.num_args;
|
|
}
|
|
|
|
for (i = 0; i < num_args; i++) {
|
|
zend_arg_info *fe_arg_info = &fe->common.arg_info[i];
|
|
|
|
zend_arg_info *proto_arg_info;
|
|
if (i < proto->common.num_args) {
|
|
proto_arg_info = &proto->common.arg_info[i];
|
|
} else {
|
|
proto_arg_info = &proto->common.arg_info[proto->common.num_args-1];
|
|
}
|
|
|
|
if (ZEND_LOG_XOR(fe_arg_info->class_name, proto_arg_info->class_name)) {
|
|
/* Only one has a type hint and the other one doesn't */
|
|
return 0;
|
|
}
|
|
|
|
if (fe_arg_info->class_name) {
|
|
zend_string *fe_class_name, *proto_class_name;
|
|
|
|
if (!strcasecmp(fe_arg_info->class_name, "parent") && proto->common.scope) {
|
|
fe_class_name = STR_INIT(
|
|
proto->common.scope->name->val,
|
|
proto->common.scope->name->len, 0);
|
|
} else if (!strcasecmp(fe_arg_info->class_name, "self") && fe->common.scope) {
|
|
fe_class_name = STR_INIT(
|
|
fe->common.scope->name->val,
|
|
fe->common.scope->name->len, 0);
|
|
} else {
|
|
fe_class_name = STR_INIT(
|
|
fe_arg_info->class_name,
|
|
fe_arg_info->class_name_len, 0);
|
|
}
|
|
|
|
if (!strcasecmp(proto_arg_info->class_name, "parent") && proto->common.scope && proto->common.scope->parent) {
|
|
proto_class_name = STR_INIT(
|
|
proto->common.scope->parent->name->val,
|
|
proto->common.scope->parent->name->len, 0);
|
|
} else if (!strcasecmp(proto_arg_info->class_name, "self") && proto->common.scope) {
|
|
proto_class_name = STR_INIT(
|
|
proto->common.scope->name->val,
|
|
proto->common.scope->name->len, 0);
|
|
} else {
|
|
proto_class_name = STR_INIT(
|
|
proto_arg_info->class_name,
|
|
proto_arg_info->class_name_len, 0);
|
|
}
|
|
|
|
if (strcasecmp(fe_class_name->val, proto_class_name->val)!=0) {
|
|
const char *colon;
|
|
|
|
if (fe->common.type != ZEND_USER_FUNCTION) {
|
|
return 0;
|
|
} else if (strchr(proto_class_name->val, '\\') != NULL ||
|
|
(colon = zend_memrchr(fe_class_name->val, '\\', fe_class_name->len)) == NULL ||
|
|
strcasecmp(colon+1, proto_class_name->val) != 0) {
|
|
zend_class_entry *fe_ce, *proto_ce;
|
|
|
|
fe_ce = zend_lookup_class(fe_class_name TSRMLS_CC);
|
|
proto_ce = zend_lookup_class(proto_class_name TSRMLS_CC);
|
|
|
|
/* Check for class alias */
|
|
if (!fe_ce || !proto_ce ||
|
|
fe_ce->type == ZEND_INTERNAL_CLASS ||
|
|
proto_ce->type == ZEND_INTERNAL_CLASS ||
|
|
fe_ce != proto_ce) {
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (fe_arg_info->type_hint != proto_arg_info->type_hint) {
|
|
/* Incompatible type hint */
|
|
return 0;
|
|
}
|
|
|
|
/* by-ref constraints on arguments are invariant */
|
|
if (fe_arg_info->pass_by_reference != proto_arg_info->pass_by_reference) {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
/* }}} */
|
|
|
|
#define REALLOC_BUF_IF_EXCEED(buf, offset, length, size) \
|
|
if (UNEXPECTED(offset - buf + size >= length)) { \
|
|
length += size + 1; \
|
|
buf = erealloc(buf, length); \
|
|
}
|
|
|
|
static char * zend_get_function_declaration(zend_function *fptr TSRMLS_DC) /* {{{ */
|
|
{
|
|
char *offset, *buf;
|
|
zend_uint length = 1024;
|
|
|
|
offset = buf = (char *)emalloc(length * sizeof(char));
|
|
if (fptr->op_array.fn_flags & ZEND_ACC_RETURN_REFERENCE) {
|
|
*(offset++) = '&';
|
|
*(offset++) = ' ';
|
|
}
|
|
|
|
if (fptr->common.scope) {
|
|
memcpy(offset, fptr->common.scope->name->val, fptr->common.scope->name->len);
|
|
offset += fptr->common.scope->name->len;
|
|
*(offset++) = ':';
|
|
*(offset++) = ':';
|
|
}
|
|
|
|
{
|
|
size_t name_len = fptr->common.function_name->len;
|
|
REALLOC_BUF_IF_EXCEED(buf, offset, length, name_len);
|
|
memcpy(offset, fptr->common.function_name->val, name_len);
|
|
offset += name_len;
|
|
}
|
|
|
|
*(offset++) = '(';
|
|
if (fptr->common.arg_info) {
|
|
zend_uint i, required;
|
|
zend_arg_info *arg_info = fptr->common.arg_info;
|
|
|
|
required = fptr->common.required_num_args;
|
|
for (i = 0; i < fptr->common.num_args;) {
|
|
if (arg_info->class_name) {
|
|
const char *class_name;
|
|
zend_uint class_name_len;
|
|
if (!strcasecmp(arg_info->class_name, "self") && fptr->common.scope ) {
|
|
class_name = fptr->common.scope->name->val;
|
|
class_name_len = fptr->common.scope->name->len;
|
|
} else if (!strcasecmp(arg_info->class_name, "parent") && fptr->common.scope->parent) {
|
|
class_name = fptr->common.scope->parent->name->val;
|
|
class_name_len = fptr->common.scope->parent->name->len;
|
|
} else {
|
|
class_name = arg_info->class_name;
|
|
class_name_len = arg_info->class_name_len;
|
|
}
|
|
REALLOC_BUF_IF_EXCEED(buf, offset, length, class_name_len);
|
|
memcpy(offset, class_name, class_name_len);
|
|
offset += class_name_len;
|
|
*(offset++) = ' ';
|
|
} else if (arg_info->type_hint) {
|
|
zend_uint type_name_len;
|
|
char *type_name = zend_get_type_by_const(arg_info->type_hint);
|
|
type_name_len = strlen(type_name);
|
|
REALLOC_BUF_IF_EXCEED(buf, offset, length, type_name_len);
|
|
memcpy(offset, type_name, type_name_len);
|
|
offset += type_name_len;
|
|
*(offset++) = ' ';
|
|
}
|
|
|
|
if (arg_info->pass_by_reference) {
|
|
*(offset++) = '&';
|
|
}
|
|
|
|
if (arg_info->is_variadic) {
|
|
*(offset++) = '.';
|
|
*(offset++) = '.';
|
|
*(offset++) = '.';
|
|
}
|
|
|
|
*(offset++) = '$';
|
|
|
|
if (arg_info->name) {
|
|
REALLOC_BUF_IF_EXCEED(buf, offset, length, arg_info->name_len);
|
|
memcpy(offset, arg_info->name, arg_info->name_len);
|
|
offset += arg_info->name_len;
|
|
} else {
|
|
zend_uint idx = i;
|
|
memcpy(offset, "param", 5);
|
|
offset += 5;
|
|
do {
|
|
*(offset++) = (char) (idx % 10) + '0';
|
|
idx /= 10;
|
|
} while (idx > 0);
|
|
}
|
|
if (i >= required && !arg_info->is_variadic) {
|
|
*(offset++) = ' ';
|
|
*(offset++) = '=';
|
|
*(offset++) = ' ';
|
|
if (fptr->type == ZEND_USER_FUNCTION) {
|
|
zend_op *precv = NULL;
|
|
{
|
|
zend_uint idx = i;
|
|
zend_op *op = ((zend_op_array *)fptr)->opcodes;
|
|
zend_op *end = op + ((zend_op_array *)fptr)->last;
|
|
|
|
++idx;
|
|
while (op < end) {
|
|
if ((op->opcode == ZEND_RECV || op->opcode == ZEND_RECV_INIT)
|
|
&& op->op1.num == (long)idx)
|
|
{
|
|
precv = op;
|
|
}
|
|
++op;
|
|
}
|
|
}
|
|
if (precv && precv->opcode == ZEND_RECV_INIT && precv->op2_type != IS_UNUSED) {
|
|
zval zv, zv_copy;
|
|
int use_copy;
|
|
|
|
ZVAL_DUP(&zv, precv->op2.zv);
|
|
//??? INIT_PZVAL(zv);
|
|
zval_update_constant_ex(&zv, (void*)1, fptr->common.scope TSRMLS_CC);
|
|
if (Z_TYPE(zv) == IS_BOOL) {
|
|
if (Z_LVAL(zv)) {
|
|
memcpy(offset, "true", 4);
|
|
offset += 4;
|
|
} else {
|
|
memcpy(offset, "false", 5);
|
|
offset += 5;
|
|
}
|
|
} else if (Z_TYPE(zv) == IS_NULL) {
|
|
memcpy(offset, "NULL", 4);
|
|
offset += 4;
|
|
} else if (Z_TYPE(zv) == IS_STRING) {
|
|
*(offset++) = '\'';
|
|
REALLOC_BUF_IF_EXCEED(buf, offset, length, MIN(Z_STRLEN(zv), 10));
|
|
memcpy(offset, Z_STRVAL(zv), MIN(Z_STRLEN(zv), 10));
|
|
offset += MIN(Z_STRLEN(zv), 10);
|
|
if (Z_STRLEN(zv) > 10) {
|
|
*(offset++) = '.';
|
|
*(offset++) = '.';
|
|
*(offset++) = '.';
|
|
}
|
|
*(offset++) = '\'';
|
|
} else if (Z_TYPE(zv) == IS_ARRAY) {
|
|
memcpy(offset, "Array", 5);
|
|
offset += 5;
|
|
} else {
|
|
zend_make_printable_zval(&zv, &zv_copy, &use_copy);
|
|
REALLOC_BUF_IF_EXCEED(buf, offset, length, Z_STRLEN(zv_copy));
|
|
memcpy(offset, Z_STRVAL(zv_copy), Z_STRLEN(zv_copy));
|
|
offset += Z_STRLEN(zv_copy);
|
|
if (use_copy) {
|
|
zval_dtor(&zv_copy);
|
|
}
|
|
}
|
|
zval_ptr_dtor(&zv);
|
|
}
|
|
} else {
|
|
memcpy(offset, "NULL", 4);
|
|
offset += 4;
|
|
}
|
|
}
|
|
|
|
if (++i < fptr->common.num_args) {
|
|
*(offset++) = ',';
|
|
*(offset++) = ' ';
|
|
}
|
|
arg_info++;
|
|
REALLOC_BUF_IF_EXCEED(buf, offset, length, 32);
|
|
}
|
|
}
|
|
*(offset++) = ')';
|
|
*offset = '\0';
|
|
|
|
return buf;
|
|
}
|
|
/* }}} */
|
|
|
|
static void do_inheritance_check_on_method(zend_function *child, zend_function *parent TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_uint child_flags;
|
|
zend_uint parent_flags = parent->common.fn_flags;
|
|
|
|
if ((parent->common.scope->ce_flags & ZEND_ACC_INTERFACE) == 0
|
|
&& parent->common.fn_flags & ZEND_ACC_ABSTRACT
|
|
&& parent->common.scope != (child->common.prototype ? child->common.prototype->common.scope : child->common.scope)
|
|
&& child->common.fn_flags & (ZEND_ACC_ABSTRACT|ZEND_ACC_IMPLEMENTED_ABSTRACT)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Can't inherit abstract function %s::%s() (previously declared abstract in %s)",
|
|
parent->common.scope->name,
|
|
child->common.function_name,
|
|
child->common.prototype ? child->common.prototype->common.scope->name : child->common.scope->name);
|
|
}
|
|
|
|
if (parent_flags & ZEND_ACC_FINAL) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot override final method %s::%s()", ZEND_FN_SCOPE_NAME(parent), child->common.function_name);
|
|
}
|
|
|
|
child_flags = child->common.fn_flags;
|
|
/* You cannot change from static to non static and vice versa.
|
|
*/
|
|
if ((child_flags & ZEND_ACC_STATIC) != (parent_flags & ZEND_ACC_STATIC)) {
|
|
if (child->common.fn_flags & ZEND_ACC_STATIC) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot make non static method %s::%s() static in class %s", ZEND_FN_SCOPE_NAME(parent), child->common.function_name, ZEND_FN_SCOPE_NAME(child));
|
|
} else {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot make static method %s::%s() non static in class %s", ZEND_FN_SCOPE_NAME(parent), child->common.function_name, ZEND_FN_SCOPE_NAME(child));
|
|
}
|
|
}
|
|
|
|
/* Disallow making an inherited method abstract. */
|
|
if ((child_flags & ZEND_ACC_ABSTRACT) && !(parent_flags & ZEND_ACC_ABSTRACT)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot make non abstract method %s::%s() abstract in class %s", ZEND_FN_SCOPE_NAME(parent), child->common.function_name, ZEND_FN_SCOPE_NAME(child));
|
|
}
|
|
|
|
if (parent_flags & ZEND_ACC_CHANGED) {
|
|
child->common.fn_flags |= ZEND_ACC_CHANGED;
|
|
} else {
|
|
/* Prevent derived classes from restricting access that was available in parent classes
|
|
*/
|
|
if ((child_flags & ZEND_ACC_PPP_MASK) > (parent_flags & ZEND_ACC_PPP_MASK)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Access level to %s::%s() must be %s (as in class %s)%s", ZEND_FN_SCOPE_NAME(child), child->common.function_name, zend_visibility_string(parent_flags), ZEND_FN_SCOPE_NAME(parent), (parent_flags&ZEND_ACC_PUBLIC) ? "" : " or weaker");
|
|
} else if (((child_flags & ZEND_ACC_PPP_MASK) < (parent_flags & ZEND_ACC_PPP_MASK))
|
|
&& ((parent_flags & ZEND_ACC_PPP_MASK) & ZEND_ACC_PRIVATE)) {
|
|
child->common.fn_flags |= ZEND_ACC_CHANGED;
|
|
}
|
|
}
|
|
|
|
if (parent_flags & ZEND_ACC_PRIVATE) {
|
|
child->common.prototype = NULL;
|
|
} else if (parent_flags & ZEND_ACC_ABSTRACT) {
|
|
child->common.fn_flags |= ZEND_ACC_IMPLEMENTED_ABSTRACT;
|
|
child->common.prototype = parent;
|
|
} else if (!(parent->common.fn_flags & ZEND_ACC_CTOR) || (parent->common.prototype && (parent->common.prototype->common.scope->ce_flags & ZEND_ACC_INTERFACE))) {
|
|
/* ctors only have a prototype if it comes from an interface */
|
|
child->common.prototype = parent->common.prototype ? parent->common.prototype : parent;
|
|
}
|
|
|
|
if (child->common.prototype && (child->common.prototype->common.fn_flags & ZEND_ACC_ABSTRACT)) {
|
|
if (!zend_do_perform_implementation_check(child, child->common.prototype TSRMLS_CC)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Declaration of %s::%s() must be compatible with %s", ZEND_FN_SCOPE_NAME(child), child->common.function_name, zend_get_function_declaration(child->common.prototype TSRMLS_CC));
|
|
}
|
|
} else if (EG(error_reporting) & E_STRICT || Z_TYPE(EG(user_error_handler)) != IS_UNDEF) { /* Check E_STRICT (or custom error handler) before the check so that we save some time */
|
|
if (!zend_do_perform_implementation_check(child, parent TSRMLS_CC)) {
|
|
char *method_prototype = zend_get_function_declaration(parent TSRMLS_CC);
|
|
zend_error(E_STRICT, "Declaration of %s::%s() should be compatible with %s", ZEND_FN_SCOPE_NAME(child), child->common.function_name->val, method_prototype);
|
|
efree(method_prototype);
|
|
}
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
static zend_bool do_inherit_method_check(HashTable *child_function_table, zval *zv, const zend_hash_key *hash_key, zend_class_entry *child_ce) /* {{{ */
|
|
{
|
|
zend_function *parent = Z_PTR_P(zv);
|
|
zend_uint parent_flags = parent->common.fn_flags;
|
|
zend_function *child;
|
|
TSRMLS_FETCH();
|
|
|
|
if ((child = zend_hash_find_ptr(child_function_table, hash_key->key)) == NULL) {
|
|
if (parent_flags & (ZEND_ACC_ABSTRACT)) {
|
|
child_ce->ce_flags |= ZEND_ACC_IMPLICIT_ABSTRACT_CLASS;
|
|
}
|
|
return 1; /* method doesn't exist in child, copy from parent */
|
|
}
|
|
|
|
do_inheritance_check_on_method(child, parent TSRMLS_CC);
|
|
|
|
return 0;
|
|
}
|
|
/* }}} */
|
|
|
|
static zend_bool do_inherit_property_access_check(HashTable *target_ht, zval *zv, const zend_hash_key *hash_key, zend_class_entry *ce) /* {{{ */
|
|
{
|
|
zend_property_info *parent_info = Z_PTR_P(zv);
|
|
zend_property_info *child_info;
|
|
zend_class_entry *parent_ce = ce->parent;
|
|
|
|
if (parent_info->flags & (ZEND_ACC_PRIVATE|ZEND_ACC_SHADOW)) {
|
|
if ((child_info = zend_hash_find_ptr(&ce->properties_info, hash_key->key)) != NULL) {
|
|
child_info->flags |= ZEND_ACC_CHANGED;
|
|
} else {
|
|
child_info = zend_hash_update_mem(&ce->properties_info, hash_key->key, parent_info, sizeof(zend_property_info));
|
|
if(ce->type & ZEND_INTERNAL_CLASS) {
|
|
zend_duplicate_property_info_internal(child_info);
|
|
} else {
|
|
zend_duplicate_property_info(child_info);
|
|
}
|
|
child_info->flags &= ~ZEND_ACC_PRIVATE; /* it's not private anymore */
|
|
child_info->flags |= ZEND_ACC_SHADOW; /* but it's a shadow of private */
|
|
}
|
|
return 0; /* don't copy access information to child */
|
|
}
|
|
|
|
if ((child_info = zend_hash_find_ptr(&ce->properties_info, hash_key->key)) != NULL) {
|
|
if ((parent_info->flags & ZEND_ACC_STATIC) != (child_info->flags & ZEND_ACC_STATIC)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot redeclare %s%s::$%s as %s%s::$%s",
|
|
(parent_info->flags & ZEND_ACC_STATIC) ? "static " : "non static ", parent_ce->name->val, hash_key->key->val,
|
|
(child_info->flags & ZEND_ACC_STATIC) ? "static " : "non static ", ce->name->val, hash_key->key->val);
|
|
|
|
}
|
|
|
|
if(parent_info->flags & ZEND_ACC_CHANGED) {
|
|
child_info->flags |= ZEND_ACC_CHANGED;
|
|
}
|
|
|
|
if ((child_info->flags & ZEND_ACC_PPP_MASK) > (parent_info->flags & ZEND_ACC_PPP_MASK)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Access level to %s::$%s must be %s (as in class %s)%s", ce->name->val, hash_key->key->val, zend_visibility_string(parent_info->flags), parent_ce->name->val, (parent_info->flags&ZEND_ACC_PUBLIC) ? "" : " or weaker");
|
|
} else if ((child_info->flags & ZEND_ACC_STATIC) == 0) {
|
|
zval_ptr_dtor(&(ce->default_properties_table[parent_info->offset]));
|
|
ce->default_properties_table[parent_info->offset] = ce->default_properties_table[child_info->offset];
|
|
ZVAL_UNDEF(&ce->default_properties_table[child_info->offset]);
|
|
child_info->offset = parent_info->offset;
|
|
}
|
|
return 0; /* Don't copy from parent */
|
|
} else {
|
|
return 1; /* Copy from parent */
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
static inline void do_implement_interface(zend_class_entry *ce, zend_class_entry *iface TSRMLS_DC) /* {{{ */
|
|
{
|
|
if (!(ce->ce_flags & ZEND_ACC_INTERFACE) && iface->interface_gets_implemented && iface->interface_gets_implemented(iface, ce TSRMLS_CC) == FAILURE) {
|
|
zend_error(E_CORE_ERROR, "Class %s could not implement interface %s", ce->name->val, iface->name->val);
|
|
}
|
|
if (ce == iface) {
|
|
zend_error(E_ERROR, "Interface %s cannot implement itself", ce->name->val);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API void zend_do_inherit_interfaces(zend_class_entry *ce, const zend_class_entry *iface TSRMLS_DC) /* {{{ */
|
|
{
|
|
/* expects interface to be contained in ce's interface list already */
|
|
zend_uint i, ce_num, if_num = iface->num_interfaces;
|
|
zend_class_entry *entry;
|
|
|
|
if (if_num==0) {
|
|
return;
|
|
}
|
|
ce_num = ce->num_interfaces;
|
|
|
|
if (ce->type == ZEND_INTERNAL_CLASS) {
|
|
ce->interfaces = (zend_class_entry **) realloc(ce->interfaces, sizeof(zend_class_entry *) * (ce_num + if_num));
|
|
} else {
|
|
ce->interfaces = (zend_class_entry **) erealloc(ce->interfaces, sizeof(zend_class_entry *) * (ce_num + if_num));
|
|
}
|
|
|
|
/* Inherit the interfaces, only if they're not already inherited by the class */
|
|
while (if_num--) {
|
|
entry = iface->interfaces[if_num];
|
|
for (i = 0; i < ce_num; i++) {
|
|
if (ce->interfaces[i] == entry) {
|
|
break;
|
|
}
|
|
}
|
|
if (i == ce_num) {
|
|
ce->interfaces[ce->num_interfaces++] = entry;
|
|
}
|
|
}
|
|
|
|
/* and now call the implementing handlers */
|
|
while (ce_num < ce->num_interfaces) {
|
|
do_implement_interface(ce, ce->interfaces[ce_num++] TSRMLS_CC);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
#ifdef ZTS
|
|
static void zval_internal_ctor(zval **p) /* {{{ */
|
|
{
|
|
zval *orig_ptr = *p;
|
|
|
|
ALLOC_ZVAL(*p);
|
|
MAKE_COPY_ZVAL(&orig_ptr, *p);
|
|
}
|
|
/* }}} */
|
|
|
|
# define zval_property_ctor(parent_ce, ce) \
|
|
(((parent_ce)->type != (ce)->type) ? zval_internal_ctor : zval_add_ref))
|
|
#else
|
|
# define zval_property_ctor(parent_ce, ce) \
|
|
zval_add_ref
|
|
#endif
|
|
|
|
ZEND_API void zend_do_inheritance(zend_class_entry *ce, zend_class_entry *parent_ce TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_property_info *property_info;
|
|
|
|
if ((ce->ce_flags & ZEND_ACC_INTERFACE)
|
|
&& !(parent_ce->ce_flags & ZEND_ACC_INTERFACE)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Interface %s may not inherit from class (%s)", ce->name, parent_ce->name);
|
|
}
|
|
if (parent_ce->ce_flags & ZEND_ACC_FINAL_CLASS) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Class %s may not inherit from final class (%s)", ce->name, parent_ce->name);
|
|
}
|
|
|
|
ce->parent = parent_ce;
|
|
/* Copy serialize/unserialize callbacks */
|
|
if (!ce->serialize) {
|
|
ce->serialize = parent_ce->serialize;
|
|
}
|
|
if (!ce->unserialize) {
|
|
ce->unserialize = parent_ce->unserialize;
|
|
}
|
|
|
|
/* Inherit interfaces */
|
|
zend_do_inherit_interfaces(ce, parent_ce TSRMLS_CC);
|
|
|
|
/* Inherit properties */
|
|
if (parent_ce->default_properties_count) {
|
|
int i = ce->default_properties_count + parent_ce->default_properties_count;
|
|
|
|
ce->default_properties_table = perealloc(ce->default_properties_table, sizeof(zval) * i, ce->type == ZEND_INTERNAL_CLASS);
|
|
if (ce->default_properties_count) {
|
|
while (i-- > parent_ce->default_properties_count) {
|
|
ce->default_properties_table[i] = ce->default_properties_table[i - parent_ce->default_properties_count];
|
|
}
|
|
}
|
|
for (i = 0; i < parent_ce->default_properties_count; i++) {
|
|
ZVAL_COPY_VALUE(&ce->default_properties_table[i], &parent_ce->default_properties_table[i]);
|
|
if (IS_REFCOUNTED(Z_TYPE(ce->default_properties_table[i]))) {
|
|
#ifdef ZTS
|
|
if (parent_ce->type != ce->type) {
|
|
zval *p;
|
|
|
|
ALLOC_ZVAL(p);
|
|
MAKE_COPY_ZVAL(&ce->default_properties_table[i], p);
|
|
ce->default_properties_table[i] = p;
|
|
} else {
|
|
Z_ADDREF_P(ce->default_properties_table[i]);
|
|
}
|
|
#else
|
|
Z_ADDREF(ce->default_properties_table[i]);
|
|
#endif
|
|
}
|
|
}
|
|
ce->default_properties_count += parent_ce->default_properties_count;
|
|
}
|
|
|
|
if (parent_ce->type != ce->type) {
|
|
/* User class extends internal class */
|
|
zend_update_class_constants(parent_ce TSRMLS_CC);
|
|
if (parent_ce->default_static_members_count) {
|
|
int i = ce->default_static_members_count + parent_ce->default_static_members_count;
|
|
|
|
ce->default_static_members_table = erealloc(ce->default_static_members_table, sizeof(void*) * i);
|
|
if (ce->default_static_members_count) {
|
|
while (i-- > parent_ce->default_static_members_count) {
|
|
ce->default_static_members_table[i] = ce->default_static_members_table[i - parent_ce->default_static_members_count];
|
|
}
|
|
}
|
|
for (i = 0; i < parent_ce->default_static_members_count; i++) {
|
|
SEPARATE_ZVAL_TO_MAKE_IS_REF(&CE_STATIC_MEMBERS(parent_ce)[i]);
|
|
ce->default_static_members_table[i] = CE_STATIC_MEMBERS(parent_ce)[i];
|
|
Z_ADDREF(ce->default_static_members_table[i]);
|
|
}
|
|
ce->default_static_members_count += parent_ce->default_static_members_count;
|
|
ce->static_members_table = ce->default_static_members_table;
|
|
}
|
|
} else {
|
|
if (parent_ce->default_static_members_count) {
|
|
int i = ce->default_static_members_count + parent_ce->default_static_members_count;
|
|
|
|
ce->default_static_members_table = perealloc(ce->default_static_members_table, sizeof(void*) * i, ce->type == ZEND_INTERNAL_CLASS);
|
|
if (ce->default_static_members_count) {
|
|
while (i-- > parent_ce->default_static_members_count) {
|
|
ce->default_static_members_table[i] = ce->default_static_members_table[i - parent_ce->default_static_members_count];
|
|
}
|
|
}
|
|
for (i = 0; i < parent_ce->default_static_members_count; i++) {
|
|
SEPARATE_ZVAL_TO_MAKE_IS_REF(&parent_ce->default_static_members_table[i]);
|
|
ce->default_static_members_table[i] = parent_ce->default_static_members_table[i];
|
|
Z_ADDREF(ce->default_static_members_table[i]);
|
|
}
|
|
ce->default_static_members_count += parent_ce->default_static_members_count;
|
|
if (ce->type == ZEND_USER_CLASS) {
|
|
ce->static_members_table = ce->default_static_members_table;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (zend_hash_internal_pointer_reset(&ce->properties_info);
|
|
(property_info = zend_hash_get_current_data_ptr(&ce->properties_info)) != NULL;
|
|
zend_hash_move_forward(&ce->properties_info)) {
|
|
if (property_info->ce == ce) {
|
|
if (property_info->flags & ZEND_ACC_STATIC) {
|
|
property_info->offset += parent_ce->default_static_members_count;
|
|
} else {
|
|
property_info->offset += parent_ce->default_properties_count;
|
|
}
|
|
}
|
|
}
|
|
|
|
zend_hash_merge_ex(&ce->properties_info, &parent_ce->properties_info, (ce->type & ZEND_INTERNAL_CLASS ? zend_duplicate_property_info_internal_zval : zend_duplicate_property_info_zval), (merge_checker_func_t) do_inherit_property_access_check, ce);
|
|
|
|
zend_hash_merge(&ce->constants_table, &parent_ce->constants_table, zval_property_ctor(parent_ce, ce), 0);
|
|
zend_hash_merge_ex(&ce->function_table, &parent_ce->function_table, do_inherit_method, (merge_checker_func_t) do_inherit_method_check, ce);
|
|
do_inherit_parent_constructor(ce);
|
|
|
|
if (ce->ce_flags & ZEND_ACC_IMPLICIT_ABSTRACT_CLASS && ce->type == ZEND_INTERNAL_CLASS) {
|
|
ce->ce_flags |= ZEND_ACC_EXPLICIT_ABSTRACT_CLASS;
|
|
} else if (!(ce->ce_flags & (ZEND_ACC_IMPLEMENT_INTERFACES|ZEND_ACC_IMPLEMENT_TRAITS))) {
|
|
/* The verification will be done in runtime by ZEND_VERIFY_ABSTRACT_CLASS */
|
|
zend_verify_abstract_class(ce TSRMLS_CC);
|
|
}
|
|
ce->ce_flags |= parent_ce->ce_flags & ZEND_HAS_STATIC_IN_METHODS;
|
|
}
|
|
/* }}} */
|
|
|
|
static zend_bool do_inherit_constant_check(HashTable *child_constants_table, const zval *parent_constant, const zend_hash_key *hash_key, const zend_class_entry *iface) /* {{{ */
|
|
{
|
|
zval *old_constant;
|
|
|
|
if ((old_constant = zend_hash_find(child_constants_table, hash_key->key)) != NULL) {
|
|
if (old_constant != parent_constant) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot inherit previously-inherited or override constant %s from interface %s", hash_key->key->val, iface->name->val);
|
|
}
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
/* }}} */
|
|
|
|
static int do_interface_constant_check(zval *val TSRMLS_DC, int num_args, va_list args, const zend_hash_key *key) /* {{{ */
|
|
{
|
|
zend_class_entry **iface = va_arg(args, zend_class_entry**);
|
|
|
|
do_inherit_constant_check(&(*iface)->constants_table, (const zval *) val, key, *iface);
|
|
|
|
return ZEND_HASH_APPLY_KEEP;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API void zend_do_implement_interface(zend_class_entry *ce, zend_class_entry *iface TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_uint i, ignore = 0;
|
|
zend_uint current_iface_num = ce->num_interfaces;
|
|
zend_uint parent_iface_num = ce->parent ? ce->parent->num_interfaces : 0;
|
|
|
|
for (i = 0; i < ce->num_interfaces; i++) {
|
|
if (ce->interfaces[i] == NULL) {
|
|
memmove(ce->interfaces + i, ce->interfaces + i + 1, sizeof(zend_class_entry*) * (--ce->num_interfaces - i));
|
|
i--;
|
|
} else if (ce->interfaces[i] == iface) {
|
|
if (i < parent_iface_num) {
|
|
ignore = 1;
|
|
} else {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Class %s cannot implement previously implemented interface %s", ce->name, iface->name);
|
|
}
|
|
}
|
|
}
|
|
if (ignore) {
|
|
/* Check for attempt to redeclare interface constants */
|
|
zend_hash_apply_with_arguments(&ce->constants_table TSRMLS_CC, (apply_func_args_t) do_interface_constant_check, 1, &iface);
|
|
} else {
|
|
if (ce->num_interfaces >= current_iface_num) {
|
|
if (ce->type == ZEND_INTERNAL_CLASS) {
|
|
ce->interfaces = (zend_class_entry **) realloc(ce->interfaces, sizeof(zend_class_entry *) * (++current_iface_num));
|
|
} else {
|
|
ce->interfaces = (zend_class_entry **) erealloc(ce->interfaces, sizeof(zend_class_entry *) * (++current_iface_num));
|
|
}
|
|
}
|
|
ce->interfaces[ce->num_interfaces++] = iface;
|
|
|
|
zend_hash_merge_ex(&ce->constants_table, &iface->constants_table, (copy_ctor_func_t) zval_add_ref, (merge_checker_func_t) do_inherit_constant_check, iface);
|
|
zend_hash_merge_ex(&ce->function_table, &iface->function_table, do_inherit_method, (merge_checker_func_t) do_inherit_method_check, ce);
|
|
|
|
do_implement_interface(ce, iface TSRMLS_CC);
|
|
zend_do_inherit_interfaces(ce, iface TSRMLS_CC);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API void zend_do_implement_trait(zend_class_entry *ce, zend_class_entry *trait TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_uint i, ignore = 0;
|
|
zend_uint current_trait_num = ce->num_traits;
|
|
zend_uint parent_trait_num = ce->parent ? ce->parent->num_traits : 0;
|
|
|
|
for (i = 0; i < ce->num_traits; i++) {
|
|
if (ce->traits[i] == NULL) {
|
|
memmove(ce->traits + i, ce->traits + i + 1, sizeof(zend_class_entry*) * (--ce->num_traits - i));
|
|
i--;
|
|
} else if (ce->traits[i] == trait) {
|
|
if (i < parent_trait_num) {
|
|
ignore = 1;
|
|
}
|
|
}
|
|
}
|
|
if (!ignore) {
|
|
if (ce->num_traits >= current_trait_num) {
|
|
if (ce->type == ZEND_INTERNAL_CLASS) {
|
|
ce->traits = (zend_class_entry **) realloc(ce->traits, sizeof(zend_class_entry *) * (++current_trait_num));
|
|
} else {
|
|
ce->traits = (zend_class_entry **) erealloc(ce->traits, sizeof(zend_class_entry *) * (++current_trait_num));
|
|
}
|
|
}
|
|
ce->traits[ce->num_traits++] = trait;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
static zend_bool zend_traits_method_compatibility_check(zend_function *fn, zend_function *other_fn TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_uint fn_flags = fn->common.scope->ce_flags;
|
|
zend_uint other_flags = other_fn->common.scope->ce_flags;
|
|
|
|
return zend_do_perform_implementation_check(fn, other_fn TSRMLS_CC)
|
|
&& ((other_fn->common.scope->ce_flags & ZEND_ACC_INTERFACE) || zend_do_perform_implementation_check(other_fn, fn TSRMLS_CC))
|
|
&& ((fn_flags & (ZEND_ACC_FINAL|ZEND_ACC_STATIC)) ==
|
|
(other_flags & (ZEND_ACC_FINAL|ZEND_ACC_STATIC))); /* equal final and static qualifier */
|
|
}
|
|
/* }}} */
|
|
|
|
static void zend_add_magic_methods(zend_class_entry* ce, zend_string* mname, zend_function* fe TSRMLS_DC) /* {{{ */
|
|
{
|
|
if (!strncmp(mname->val, ZEND_CLONE_FUNC_NAME, mname->len)) {
|
|
ce->clone = fe; fe->common.fn_flags |= ZEND_ACC_CLONE;
|
|
} else if (!strncmp(mname->val, ZEND_CONSTRUCTOR_FUNC_NAME, mname->len)) {
|
|
if (ce->constructor) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "%s has colliding constructor definitions coming from traits", ce->name);
|
|
}
|
|
ce->constructor = fe; fe->common.fn_flags |= ZEND_ACC_CTOR;
|
|
} else if (!strncmp(mname->val, ZEND_DESTRUCTOR_FUNC_NAME, mname->len)) {
|
|
ce->destructor = fe; fe->common.fn_flags |= ZEND_ACC_DTOR;
|
|
} else if (!strncmp(mname->val, ZEND_GET_FUNC_NAME, mname->len)) {
|
|
ce->__get = fe;
|
|
} else if (!strncmp(mname->val, ZEND_SET_FUNC_NAME, mname->len)) {
|
|
ce->__set = fe;
|
|
} else if (!strncmp(mname->val, ZEND_CALL_FUNC_NAME, mname->len)) {
|
|
ce->__call = fe;
|
|
} else if (!strncmp(mname->val, ZEND_UNSET_FUNC_NAME, mname->len)) {
|
|
ce->__unset = fe;
|
|
} else if (!strncmp(mname->val, ZEND_ISSET_FUNC_NAME, mname->len)) {
|
|
ce->__isset = fe;
|
|
} else if (!strncmp(mname->val, ZEND_CALLSTATIC_FUNC_NAME, mname->len)) {
|
|
ce->__callstatic = fe;
|
|
} else if (!strncmp(mname->val, ZEND_TOSTRING_FUNC_NAME, mname->len)) {
|
|
ce->__tostring = fe;
|
|
} else if (ce->name->len + 1 == mname->len) {
|
|
zend_string *lowercase_name = STR_ALLOC(ce->name->len, 0);
|
|
zend_str_tolower_copy(lowercase_name->val, ce->name->val, ce->name->len);
|
|
lowercase_name = zend_new_interned_string(lowercase_name TSRMLS_CC);
|
|
if (!memcmp(mname->val, lowercase_name->val, mname->len)) {
|
|
if (ce->constructor) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "%s has colliding constructor definitions coming from traits", ce->name);
|
|
}
|
|
ce->constructor = fe;
|
|
fe->common.fn_flags |= ZEND_ACC_CTOR;
|
|
}
|
|
STR_RELEASE(lowercase_name);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
static void zend_add_trait_method(zend_class_entry *ce, const char *name, zend_string *key, zend_function *fn, HashTable **overriden TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_function *existing_fn = NULL;
|
|
|
|
if ((existing_fn = zend_hash_find_ptr(&ce->function_table, key)) != NULL) {
|
|
if (existing_fn->common.scope == ce) {
|
|
/* members from the current class override trait methods */
|
|
/* use temporary *overriden HashTable to detect hidden conflict */
|
|
if (*overriden) {
|
|
if ((existing_fn = zend_hash_find_ptr(*overriden, key)) != NULL) {
|
|
if (existing_fn->common.fn_flags & ZEND_ACC_ABSTRACT) {
|
|
/* Make sure the trait method is compatible with previosly declared abstract method */
|
|
if (!zend_traits_method_compatibility_check(fn, existing_fn TSRMLS_CC)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Declaration of %s must be compatible with %s",
|
|
zend_get_function_declaration(fn TSRMLS_CC),
|
|
zend_get_function_declaration(existing_fn TSRMLS_CC));
|
|
}
|
|
} else if (fn->common.fn_flags & ZEND_ACC_ABSTRACT) {
|
|
/* Make sure the abstract declaration is compatible with previous declaration */
|
|
if (!zend_traits_method_compatibility_check(existing_fn, fn TSRMLS_CC)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Declaration of %s must be compatible with %s",
|
|
zend_get_function_declaration(fn TSRMLS_CC),
|
|
zend_get_function_declaration(existing_fn TSRMLS_CC));
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
} else {
|
|
ALLOC_HASHTABLE(*overriden);
|
|
zend_hash_init_ex(*overriden, 2, NULL, NULL, 0, 0);
|
|
}
|
|
fn = zend_hash_update_mem(*overriden, key, fn, sizeof(zend_function));
|
|
return;
|
|
} else if (existing_fn->common.fn_flags & ZEND_ACC_ABSTRACT) {
|
|
/* Make sure the trait method is compatible with previosly declared abstract method */
|
|
if (!zend_traits_method_compatibility_check(fn, existing_fn TSRMLS_CC)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Declaration of %s must be compatible with %s",
|
|
zend_get_function_declaration(fn TSRMLS_CC),
|
|
zend_get_function_declaration(existing_fn TSRMLS_CC));
|
|
}
|
|
} else if (fn->common.fn_flags & ZEND_ACC_ABSTRACT) {
|
|
/* Make sure the abstract declaration is compatible with previous declaration */
|
|
if (!zend_traits_method_compatibility_check(existing_fn, fn TSRMLS_CC)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Declaration of %s must be compatible with %s",
|
|
zend_get_function_declaration(fn TSRMLS_CC),
|
|
zend_get_function_declaration(existing_fn TSRMLS_CC));
|
|
}
|
|
return;
|
|
} else if ((existing_fn->common.scope->ce_flags & ZEND_ACC_TRAIT) == ZEND_ACC_TRAIT) {
|
|
/* two traits can't define the same non-abstract method */
|
|
#if 1
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Trait method %s has not been applied, because there are collisions with other trait methods on %s",
|
|
name, ce->name);
|
|
#else /* TODO: better error message */
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Trait method %s::%s has not been applied as %s::%s, because of collision with %s::%s",
|
|
fn->common.scope->name, fn->common.function_name,
|
|
ce->name, name,
|
|
existing_fn->common.scope->name, existing_fn->common.function_name);
|
|
#endif
|
|
} else {
|
|
/* inherited members are overridden by members inserted by traits */
|
|
/* check whether the trait method fulfills the inheritance requirements */
|
|
do_inheritance_check_on_method(fn, existing_fn TSRMLS_CC);
|
|
}
|
|
}
|
|
|
|
function_add_ref(fn);
|
|
fn = zend_hash_update_mem(&ce->function_table, key, fn, sizeof(zend_function));
|
|
zend_add_magic_methods(ce, key, fn TSRMLS_CC);
|
|
}
|
|
/* }}} */
|
|
|
|
static int zend_fixup_trait_method(zend_function *fn, zend_class_entry *ce TSRMLS_DC) /* {{{ */
|
|
{
|
|
if ((fn->common.scope->ce_flags & ZEND_ACC_TRAIT) == ZEND_ACC_TRAIT) {
|
|
|
|
fn->common.scope = ce;
|
|
|
|
if (fn->common.fn_flags & ZEND_ACC_ABSTRACT) {
|
|
ce->ce_flags |= ZEND_ACC_IMPLICIT_ABSTRACT_CLASS;
|
|
}
|
|
if (fn->op_array.static_variables) {
|
|
ce->ce_flags |= ZEND_HAS_STATIC_IN_METHODS;
|
|
}
|
|
}
|
|
return ZEND_HASH_APPLY_KEEP;
|
|
}
|
|
/* }}} */
|
|
|
|
static int zend_traits_copy_functions(zend_function *fn TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key) /* {{{ */
|
|
{
|
|
zend_class_entry *ce;
|
|
HashTable **overriden;
|
|
zend_trait_alias *alias, **alias_ptr;
|
|
HashTable *exclude_table;
|
|
zend_string *lcname;
|
|
unsigned int fnname_len;
|
|
zend_function fn_copy;
|
|
|
|
ce = va_arg(args, zend_class_entry*);
|
|
overriden = va_arg(args, HashTable**);
|
|
exclude_table = va_arg(args, HashTable*);
|
|
|
|
fnname_len = hash_key->key->len;
|
|
|
|
/* apply aliases which are qualified with a class name, there should not be any ambiguity */
|
|
if (ce->trait_aliases) {
|
|
alias_ptr = ce->trait_aliases;
|
|
alias = *alias_ptr;
|
|
while (alias) {
|
|
/* Scope unset or equal to the function we compare to, and the alias applies to fn */
|
|
if (alias->alias != NULL
|
|
&& (!alias->trait_method->ce || fn->common.scope == alias->trait_method->ce)
|
|
&& alias->trait_method->method_name->len == fnname_len
|
|
&& (zend_binary_strcasecmp(alias->trait_method->method_name->val, alias->trait_method->method_name->len, hash_key->key->val, fnname_len) == 0)) {
|
|
fn_copy = *fn;
|
|
|
|
/* if it is 0, no modifieres has been changed */
|
|
if (alias->modifiers) {
|
|
fn_copy.common.fn_flags = alias->modifiers | (fn->common.fn_flags ^ (fn->common.fn_flags & ZEND_ACC_PPP_MASK));
|
|
}
|
|
|
|
lcname = STR_ALLOC(alias->alias->len, 0);
|
|
zend_str_tolower_copy(lcname->val, alias->alias->val, alias->alias->len);
|
|
zend_add_trait_method(ce, alias->alias->val, lcname, &fn_copy, overriden TSRMLS_CC);
|
|
STR_FREE(lcname);
|
|
|
|
/* Record the trait from which this alias was resolved. */
|
|
if (!alias->trait_method->ce) {
|
|
alias->trait_method->ce = fn->common.scope;
|
|
}
|
|
}
|
|
alias_ptr++;
|
|
alias = *alias_ptr;
|
|
}
|
|
}
|
|
|
|
lcname = hash_key->key;
|
|
|
|
if (exclude_table == NULL || zend_hash_find(exclude_table, lcname) == NULL) {
|
|
/* is not in hashtable, thus, function is not to be excluded */
|
|
fn_copy = *fn;
|
|
|
|
/* apply aliases which have not alias name, just setting visibility */
|
|
if (ce->trait_aliases) {
|
|
alias_ptr = ce->trait_aliases;
|
|
alias = *alias_ptr;
|
|
while (alias) {
|
|
/* Scope unset or equal to the function we compare to, and the alias applies to fn */
|
|
if (alias->alias == NULL && alias->modifiers != 0
|
|
&& (!alias->trait_method->ce || fn->common.scope == alias->trait_method->ce)
|
|
&& (alias->trait_method->method_name->len == fnname_len)
|
|
&& (zend_binary_strcasecmp(alias->trait_method->method_name->val, alias->trait_method->method_name->len, lcname->val, fnname_len) == 0)) {
|
|
|
|
fn_copy.common.fn_flags = alias->modifiers | (fn->common.fn_flags ^ (fn->common.fn_flags & ZEND_ACC_PPP_MASK));
|
|
|
|
/** Record the trait from which this alias was resolved. */
|
|
if (!alias->trait_method->ce) {
|
|
alias->trait_method->ce = fn->common.scope;
|
|
}
|
|
}
|
|
alias_ptr++;
|
|
alias = *alias_ptr;
|
|
}
|
|
}
|
|
|
|
zend_add_trait_method(ce, fn->common.function_name->val, lcname, &fn_copy, overriden TSRMLS_CC);
|
|
}
|
|
|
|
return ZEND_HASH_APPLY_KEEP;
|
|
}
|
|
/* }}} */
|
|
|
|
static void zend_check_trait_usage(zend_class_entry *ce, zend_class_entry *trait TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_uint i;
|
|
|
|
if ((trait->ce_flags & ZEND_ACC_TRAIT) != ZEND_ACC_TRAIT) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Class %s is not a trait, Only traits may be used in 'as' and 'insteadof' statements", trait->name);
|
|
}
|
|
|
|
for (i = 0; i < ce->num_traits; i++) {
|
|
if (ce->traits[i] == trait) {
|
|
return;
|
|
}
|
|
}
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Required Trait %s wasn't added to %s", trait->name, ce->name);
|
|
}
|
|
/* }}} */
|
|
|
|
static void zend_traits_init_trait_structures(zend_class_entry *ce TSRMLS_DC) /* {{{ */
|
|
{
|
|
size_t i, j = 0;
|
|
zend_trait_precedence *cur_precedence;
|
|
zend_trait_method_reference *cur_method_ref;
|
|
zend_string *lcname;
|
|
zend_bool method_exists;
|
|
|
|
/* resolve class references */
|
|
if (ce->trait_precedences) {
|
|
i = 0;
|
|
while ((cur_precedence = ce->trait_precedences[i])) {
|
|
/** Resolve classes for all precedence operations. */
|
|
if (cur_precedence->exclude_from_classes) {
|
|
cur_method_ref = cur_precedence->trait_method;
|
|
if (!(cur_precedence->trait_method->ce = zend_fetch_class(cur_method_ref->class_name,
|
|
ZEND_FETCH_CLASS_TRAIT|ZEND_FETCH_CLASS_NO_AUTOLOAD TSRMLS_CC))) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Could not find trait %s", cur_method_ref->class_name);
|
|
}
|
|
zend_check_trait_usage(ce, cur_precedence->trait_method->ce TSRMLS_CC);
|
|
|
|
/** Ensure that the prefered method is actually available. */
|
|
lcname = STR_ALLOC(cur_method_ref->method_name->len, 0);
|
|
zend_str_tolower_copy(lcname->val,
|
|
cur_method_ref->method_name->val,
|
|
cur_method_ref->method_name->len);
|
|
method_exists = zend_hash_exists(&cur_method_ref->ce->function_table,
|
|
lcname);
|
|
STR_FREE(lcname);
|
|
if (!method_exists) {
|
|
zend_error_noreturn(E_COMPILE_ERROR,
|
|
"A precedence rule was defined for %s::%s but this method does not exist",
|
|
cur_method_ref->ce->name->val,
|
|
cur_method_ref->method_name->val);
|
|
}
|
|
|
|
/** With the other traits, we are more permissive.
|
|
We do not give errors for those. This allows to be more
|
|
defensive in such definitions.
|
|
However, we want to make sure that the insteadof declaration
|
|
is consistent in itself.
|
|
*/
|
|
j = 0;
|
|
while (cur_precedence->exclude_from_classes[j].class_name) {
|
|
zend_string* class_name = cur_precedence->exclude_from_classes[j].class_name;
|
|
|
|
if (!(cur_precedence->exclude_from_classes[j].ce = zend_fetch_class(class_name, ZEND_FETCH_CLASS_TRAIT |ZEND_FETCH_CLASS_NO_AUTOLOAD TSRMLS_CC))) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Could not find trait %s", class_name);
|
|
}
|
|
zend_check_trait_usage(ce, cur_precedence->exclude_from_classes[j].ce TSRMLS_CC);
|
|
|
|
/* make sure that the trait method is not from a class mentioned in
|
|
exclude_from_classes, for consistency */
|
|
if (cur_precedence->trait_method->ce == cur_precedence->exclude_from_classes[i].ce) {
|
|
zend_error_noreturn(E_COMPILE_ERROR,
|
|
"Inconsistent insteadof definition. "
|
|
"The method %s is to be used from %s, but %s is also on the exclude list",
|
|
cur_method_ref->method_name->val,
|
|
cur_precedence->trait_method->ce->name->val,
|
|
cur_precedence->trait_method->ce->name->val);
|
|
}
|
|
|
|
STR_FREE(class_name);
|
|
j++;
|
|
}
|
|
}
|
|
i++;
|
|
}
|
|
}
|
|
|
|
if (ce->trait_aliases) {
|
|
i = 0;
|
|
while (ce->trait_aliases[i]) {
|
|
/** For all aliases with an explicit class name, resolve the class now. */
|
|
if (ce->trait_aliases[i]->trait_method->class_name) {
|
|
cur_method_ref = ce->trait_aliases[i]->trait_method;
|
|
if (!(cur_method_ref->ce = zend_fetch_class(cur_method_ref->class_name, ZEND_FETCH_CLASS_TRAIT|ZEND_FETCH_CLASS_NO_AUTOLOAD TSRMLS_CC))) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Could not find trait %s", cur_method_ref->class_name->val);
|
|
}
|
|
zend_check_trait_usage(ce, cur_method_ref->ce TSRMLS_CC);
|
|
|
|
/** And, ensure that the referenced method is resolvable, too. */
|
|
lcname = STR_ALLOC(cur_method_ref->method_name->len, 0);
|
|
zend_str_tolower_copy(lcname->val,
|
|
cur_method_ref->method_name->val,
|
|
cur_method_ref->method_name->len);
|
|
method_exists = zend_hash_exists(&cur_method_ref->ce->function_table,
|
|
lcname);
|
|
STR_FREE(lcname);
|
|
|
|
if (!method_exists) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "An alias was defined for %s::%s but this method does not exist", cur_method_ref->ce->name, cur_method_ref->method_name);
|
|
}
|
|
}
|
|
i++;
|
|
}
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
static void zend_traits_compile_exclude_table(HashTable* exclude_table, zend_trait_precedence **precedences, zend_class_entry *trait) /* {{{ */
|
|
{
|
|
size_t i = 0, j;
|
|
|
|
if (!precedences) {
|
|
return;
|
|
}
|
|
while (precedences[i]) {
|
|
if (precedences[i]->exclude_from_classes) {
|
|
j = 0;
|
|
while (precedences[i]->exclude_from_classes[j].ce) {
|
|
if (precedences[i]->exclude_from_classes[j].ce == trait) {
|
|
zend_string *lcname = STR_ALLOC(precedences[i]->trait_method->method_name->len, 0);
|
|
|
|
zend_str_tolower_copy(lcname->val,
|
|
precedences[i]->trait_method->method_name->val,
|
|
precedences[i]->trait_method->method_name->len);
|
|
if (zend_hash_add_empty_element(exclude_table, lcname) == NULL) {
|
|
STR_RELEASE(lcname);
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Failed to evaluate a trait precedence (%s). Method of trait %s was defined to be excluded multiple times", precedences[i]->trait_method->method_name, trait->name);
|
|
}
|
|
STR_RELEASE(lcname);
|
|
}
|
|
++j;
|
|
}
|
|
}
|
|
++i;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
static void zend_do_traits_method_binding(zend_class_entry *ce TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_uint i;
|
|
HashTable *overriden = NULL;
|
|
|
|
for (i = 0; i < ce->num_traits; i++) {
|
|
if (ce->trait_precedences) {
|
|
HashTable exclude_table;
|
|
|
|
/* TODO: revisit this start size, may be its not optimal */
|
|
zend_hash_init_ex(&exclude_table, 2, NULL, NULL, 0, 0);
|
|
|
|
zend_traits_compile_exclude_table(&exclude_table, ce->trait_precedences, ce->traits[i]);
|
|
|
|
/* copies functions, applies defined aliasing, and excludes unused trait methods */
|
|
zend_hash_apply_with_arguments(&ce->traits[i]->function_table TSRMLS_CC, (apply_func_args_t)zend_traits_copy_functions, 3, ce, &overriden, &exclude_table);
|
|
|
|
zend_hash_destroy(&exclude_table);
|
|
} else {
|
|
zend_hash_apply_with_arguments(&ce->traits[i]->function_table TSRMLS_CC, (apply_func_args_t)zend_traits_copy_functions, 3, ce, &overriden, NULL);
|
|
}
|
|
}
|
|
|
|
zend_hash_apply_with_argument(&ce->function_table, (apply_func_arg_t)zend_fixup_trait_method, ce TSRMLS_CC);
|
|
|
|
if (overriden) {
|
|
zend_hash_destroy(overriden);
|
|
FREE_HASHTABLE(overriden);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
static zend_class_entry* find_first_definition(zend_class_entry *ce, size_t current_trait, zend_string *prop_name, zend_class_entry *coliding_ce) /* {{{ */
|
|
{
|
|
size_t i;
|
|
|
|
if (coliding_ce == ce) {
|
|
for (i = 0; i < current_trait; i++) {
|
|
if (zend_hash_exists(&ce->traits[i]->properties_info, prop_name)) {
|
|
return ce->traits[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
return coliding_ce;
|
|
}
|
|
/* }}} */
|
|
|
|
static void zend_do_traits_property_binding(zend_class_entry *ce TSRMLS_DC) /* {{{ */
|
|
{
|
|
size_t i;
|
|
zend_property_info *property_info;
|
|
zend_property_info *coliding_prop;
|
|
zval compare_result;
|
|
zend_string* prop_name;
|
|
const char* class_name_unused;
|
|
zend_bool not_compatible;
|
|
zval* prop_value;
|
|
zend_uint flags;
|
|
|
|
/* In the following steps the properties are inserted into the property table
|
|
* for that, a very strict approach is applied:
|
|
* - check for compatibility, if not compatible with any property in class -> fatal
|
|
* - if compatible, then strict notice
|
|
*/
|
|
for (i = 0; i < ce->num_traits; i++) {
|
|
for (zend_hash_internal_pointer_reset(&ce->traits[i]->properties_info);
|
|
(property_info = zend_hash_get_current_data_ptr(&ce->traits[i]->properties_info)) != NULL;
|
|
zend_hash_move_forward(&ce->traits[i]->properties_info)) {
|
|
/* first get the unmangeld name if necessary,
|
|
* then check whether the property is already there
|
|
*/
|
|
flags = property_info->flags;
|
|
if ((flags & ZEND_ACC_PPP_MASK) == ZEND_ACC_PUBLIC) {
|
|
prop_name = property_info->name;
|
|
} else {
|
|
const char *pname;
|
|
int pname_len;
|
|
|
|
/* for private and protected we need to unmangle the names */
|
|
zend_unmangle_property_name_ex(property_info->name->val, property_info->name->len,
|
|
&class_name_unused, &pname, &pname_len);
|
|
prop_name = STR_INIT(pname, pname_len, 0);
|
|
}
|
|
|
|
/* next: check for conflicts with current class */
|
|
if ((coliding_prop = zend_hash_find_ptr(&ce->properties_info, prop_name)) != NULL) {
|
|
if (coliding_prop->flags & ZEND_ACC_SHADOW) {
|
|
zend_hash_del(&ce->properties_info, prop_name);
|
|
flags |= ZEND_ACC_CHANGED;
|
|
} else {
|
|
if ((coliding_prop->flags & (ZEND_ACC_PPP_MASK | ZEND_ACC_STATIC))
|
|
== (flags & (ZEND_ACC_PPP_MASK | ZEND_ACC_STATIC))) {
|
|
/* flags are identical, now the value needs to be checked */
|
|
if (flags & ZEND_ACC_STATIC) {
|
|
not_compatible = (FAILURE == compare_function(&compare_result,
|
|
&ce->default_static_members_table[coliding_prop->offset],
|
|
&ce->traits[i]->default_static_members_table[property_info->offset] TSRMLS_CC))
|
|
|| (Z_LVAL(compare_result) != 0);
|
|
} else {
|
|
not_compatible = (FAILURE == compare_function(&compare_result,
|
|
&ce->default_properties_table[coliding_prop->offset],
|
|
&ce->traits[i]->default_properties_table[property_info->offset] TSRMLS_CC))
|
|
|| (Z_LVAL(compare_result) != 0);
|
|
}
|
|
} else {
|
|
/* the flags are not identical, thus, we assume properties are not compatible */
|
|
not_compatible = 1;
|
|
}
|
|
|
|
if (not_compatible) {
|
|
zend_error_noreturn(E_COMPILE_ERROR,
|
|
"%s and %s define the same property ($%s) in the composition of %s. However, the definition differs and is considered incompatible. Class was composed",
|
|
find_first_definition(ce, i, prop_name, coliding_prop->ce)->name->val,
|
|
property_info->ce->name->val,
|
|
prop_name->val,
|
|
ce->name->val);
|
|
} else {
|
|
zend_error(E_STRICT,
|
|
"%s and %s define the same property ($%s) in the composition of %s. This might be incompatible, to improve maintainability consider using accessor methods in traits instead. Class was composed",
|
|
find_first_definition(ce, i, prop_name, coliding_prop->ce)->name->val,
|
|
property_info->ce->name->val,
|
|
prop_name->val,
|
|
ce->name->val);
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* property not found, so lets add it */
|
|
if (flags & ZEND_ACC_STATIC) {
|
|
prop_value = &ce->traits[i]->default_static_members_table[property_info->offset];
|
|
} else {
|
|
prop_value = &ce->traits[i]->default_properties_table[property_info->offset];
|
|
}
|
|
Z_ADDREF_P(prop_value);
|
|
|
|
//??? doc_comment = property_info->doc_comment ? STR_DUP(property_info->doc_comment, 0) : NULL;
|
|
zend_declare_property_ex(ce, prop_name,
|
|
prop_value, flags,
|
|
property_info->doc_comment TSRMLS_CC);
|
|
}
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
static void zend_do_check_for_inconsistent_traits_aliasing(zend_class_entry *ce TSRMLS_DC) /* {{{ */
|
|
{
|
|
int i = 0;
|
|
zend_trait_alias* cur_alias;
|
|
zend_string* lc_method_name;
|
|
|
|
if (ce->trait_aliases) {
|
|
while (ce->trait_aliases[i]) {
|
|
cur_alias = ce->trait_aliases[i];
|
|
/** The trait for this alias has not been resolved, this means, this
|
|
alias was not applied. Abort with an error. */
|
|
if (!cur_alias->trait_method->ce) {
|
|
if (cur_alias->alias) {
|
|
/** Plain old inconsistency/typo/bug */
|
|
zend_error_noreturn(E_COMPILE_ERROR,
|
|
"An alias (%s) was defined for method %s(), but this method does not exist",
|
|
cur_alias->alias,
|
|
cur_alias->trait_method->method_name);
|
|
} else {
|
|
/** Here are two possible cases:
|
|
1) this is an attempt to modifiy the visibility
|
|
of a method introduce as part of another alias.
|
|
Since that seems to violate the DRY principle,
|
|
we check against it and abort.
|
|
2) it is just a plain old inconsitency/typo/bug
|
|
as in the case where alias is set. */
|
|
|
|
lc_method_name = STR_ALLOC(cur_alias->trait_method->method_name->len, 0);
|
|
zend_str_tolower_copy(
|
|
lc_method_name->val,
|
|
cur_alias->trait_method->method_name->val,
|
|
cur_alias->trait_method->method_name->len);
|
|
if (zend_hash_exists(&ce->function_table,
|
|
lc_method_name)) {
|
|
STR_FREE(lc_method_name);
|
|
zend_error_noreturn(E_COMPILE_ERROR,
|
|
"The modifiers for the trait alias %s() need to be changed in the same statment in which the alias is defined. Error",
|
|
cur_alias->trait_method->method_name->val);
|
|
} else {
|
|
STR_FREE(lc_method_name);
|
|
zend_error_noreturn(E_COMPILE_ERROR,
|
|
"The modifiers of the trait method %s() are changed, but this method does not exist. Error",
|
|
cur_alias->trait_method->method_name->val);
|
|
|
|
}
|
|
}
|
|
}
|
|
i++;
|
|
}
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API void zend_do_bind_traits(zend_class_entry *ce TSRMLS_DC) /* {{{ */
|
|
{
|
|
|
|
if (ce->num_traits <= 0) {
|
|
return;
|
|
}
|
|
|
|
/* complete initialization of trait strutures in ce */
|
|
zend_traits_init_trait_structures(ce TSRMLS_CC);
|
|
|
|
/* first care about all methods to be flattened into the class */
|
|
zend_do_traits_method_binding(ce TSRMLS_CC);
|
|
|
|
/* Aliases which have not been applied indicate typos/bugs. */
|
|
zend_do_check_for_inconsistent_traits_aliasing(ce TSRMLS_CC);
|
|
|
|
/* then flatten the properties into it, to, mostly to notfiy developer about problems */
|
|
zend_do_traits_property_binding(ce TSRMLS_CC);
|
|
|
|
/* verify that all abstract methods from traits have been implemented */
|
|
zend_verify_abstract_class(ce TSRMLS_CC);
|
|
|
|
/* now everything should be fine and an added ZEND_ACC_IMPLICIT_ABSTRACT_CLASS should be removed */
|
|
if (ce->ce_flags & ZEND_ACC_IMPLICIT_ABSTRACT_CLASS) {
|
|
ce->ce_flags -= ZEND_ACC_IMPLICIT_ABSTRACT_CLASS;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API int do_bind_function(const zend_op_array *op_array, zend_op *opline, HashTable *function_table, zend_bool compile_time) /* {{{ */
|
|
{
|
|
zend_function *function, *new_function;
|
|
zval *op1, *op2;
|
|
|
|
if (compile_time) {
|
|
op1 = &CONSTANT_EX(op_array, opline->op1.constant);
|
|
op2 = &CONSTANT_EX(op_array, opline->op2.constant);
|
|
} else {
|
|
op1 = opline->op1.zv;
|
|
op2 = opline->op2.zv;
|
|
}
|
|
|
|
function = zend_hash_find_ptr(function_table, Z_STR_P(op1));
|
|
new_function = emalloc(sizeof(zend_op_array));
|
|
memcpy(new_function, function, sizeof(zend_op_array));
|
|
if (zend_hash_add_ptr(function_table, Z_STR_P(op2), new_function) == NULL) {
|
|
int error_level = compile_time ? E_COMPILE_ERROR : E_ERROR;
|
|
zend_function *old_function;
|
|
|
|
efree(new_function);
|
|
if ((old_function = zend_hash_find_ptr(function_table, Z_STR_P(op2))) != NULL
|
|
&& old_function->type == ZEND_USER_FUNCTION
|
|
&& old_function->op_array.last > 0) {
|
|
zend_error(error_level, "Cannot redeclare %s() (previously declared in %s:%d)",
|
|
function->common.function_name->val,
|
|
old_function->op_array.filename->val,
|
|
old_function->op_array.opcodes[0].lineno);
|
|
} else {
|
|
zend_error(error_level, "Cannot redeclare %s()", function->common.function_name->val);
|
|
}
|
|
return FAILURE;
|
|
} else {
|
|
(*new_function->op_array.refcount)++;
|
|
new_function->op_array.static_variables = NULL; /* NULL out the unbound function */
|
|
return SUCCESS;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_prepare_reference(znode *result, znode *class_name, znode *method_name TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_trait_method_reference *method_ref = emalloc(sizeof(zend_trait_method_reference));
|
|
method_ref->ce = NULL;
|
|
|
|
/* REM: There should not be a need for copying,
|
|
zend_do_begin_class_declaration is also just using that string */
|
|
if (class_name) {
|
|
zend_resolve_class_name(class_name TSRMLS_CC);
|
|
method_ref->class_name = Z_STR(class_name->u.constant);
|
|
} else {
|
|
method_ref->class_name = NULL;
|
|
}
|
|
|
|
method_ref->method_name = Z_STR(method_name->u.constant);
|
|
|
|
result->u.op.ptr = method_ref;
|
|
result->op_type = IS_TMP_VAR;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_add_trait_alias(znode *method_reference, znode *modifiers, znode *alias TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_class_entry *ce = CG(active_class_entry);
|
|
zend_trait_alias *trait_alias;
|
|
|
|
if (Z_LVAL(modifiers->u.constant) == ZEND_ACC_STATIC) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use 'static' as method modifier");
|
|
return;
|
|
} else if (Z_LVAL(modifiers->u.constant) == ZEND_ACC_ABSTRACT) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use 'abstract' as method modifier");
|
|
return;
|
|
} else if (Z_LVAL(modifiers->u.constant) == ZEND_ACC_FINAL) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use 'final' as method modifier");
|
|
return;
|
|
}
|
|
|
|
trait_alias = emalloc(sizeof(zend_trait_alias));
|
|
trait_alias->trait_method = (zend_trait_method_reference*)method_reference->u.op.ptr;
|
|
trait_alias->modifiers = Z_LVAL(modifiers->u.constant);
|
|
if (alias) {
|
|
trait_alias->alias = Z_STR(alias->u.constant);
|
|
} else {
|
|
trait_alias->alias = NULL;
|
|
}
|
|
zend_add_to_list(&ce->trait_aliases, trait_alias TSRMLS_CC);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_add_trait_precedence(znode *method_reference, znode *trait_list TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_class_entry *ce = CG(active_class_entry);
|
|
zend_trait_precedence *trait_precedence = emalloc(sizeof(zend_trait_precedence));
|
|
|
|
trait_precedence->trait_method = (zend_trait_method_reference*)method_reference->u.op.ptr;
|
|
trait_precedence->exclude_from_classes = trait_list->u.op.ptr;
|
|
|
|
zend_add_to_list(&ce->trait_precedences, trait_precedence TSRMLS_CC);
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API zend_class_entry *do_bind_class(const zend_op_array* op_array, const zend_op *opline, HashTable *class_table, zend_bool compile_time TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_class_entry *ce;
|
|
zval *op1, *op2;
|
|
|
|
if (compile_time) {
|
|
op1 = &CONSTANT_EX(op_array, opline->op1.constant);
|
|
op2 = &CONSTANT_EX(op_array, opline->op2.constant);
|
|
} else {
|
|
op1 = opline->op1.zv;
|
|
op2 = opline->op2.zv;
|
|
}
|
|
if ((ce = zend_hash_find_ptr(class_table, Z_STR_P(op1))) == NULL) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Internal Zend error - Missing class information for %s", Z_STRVAL_P(op1));
|
|
return NULL;
|
|
}
|
|
ce->refcount++;
|
|
if (zend_hash_add_ptr(class_table, Z_STR_P(op2), ce) == NULL) {
|
|
ce->refcount--;
|
|
if (!compile_time) {
|
|
/* If we're in compile time, in practice, it's quite possible
|
|
* that we'll never reach this class declaration at runtime,
|
|
* so we shut up about it. This allows the if (!defined('FOO')) { return; }
|
|
* approach to work.
|
|
*/
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot redeclare class %s", ce->name->val);
|
|
}
|
|
return NULL;
|
|
} else {
|
|
if (!(ce->ce_flags & (ZEND_ACC_INTERFACE|ZEND_ACC_IMPLEMENT_INTERFACES|ZEND_ACC_IMPLEMENT_TRAITS))) {
|
|
zend_verify_abstract_class(ce TSRMLS_CC);
|
|
}
|
|
return ce;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API zend_class_entry *do_bind_inherited_class(const zend_op_array *op_array, const zend_op *opline, HashTable *class_table, zend_class_entry *parent_ce, zend_bool compile_time TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_class_entry *ce;
|
|
zval *op1, *op2;
|
|
|
|
if (compile_time) {
|
|
op1 = &CONSTANT_EX(op_array, opline->op1.constant);
|
|
op2 = &CONSTANT_EX(op_array, opline->op2.constant);
|
|
} else {
|
|
op1 = opline->op1.zv;
|
|
op2 = opline->op2.zv;
|
|
}
|
|
|
|
ce = zend_hash_find_ptr(class_table, Z_STR_P(op1));
|
|
|
|
if (!ce) {
|
|
if (!compile_time) {
|
|
/* If we're in compile time, in practice, it's quite possible
|
|
* that we'll never reach this class declaration at runtime,
|
|
* so we shut up about it. This allows the if (!defined('FOO')) { return; }
|
|
* approach to work.
|
|
*/
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot redeclare class %s", Z_STRVAL_P(op2));
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
if (parent_ce->ce_flags & ZEND_ACC_INTERFACE) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Class %s cannot extend from interface %s", ce->name, parent_ce->name);
|
|
} else if ((parent_ce->ce_flags & ZEND_ACC_TRAIT) == ZEND_ACC_TRAIT) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Class %s cannot extend from trait %s", ce->name, parent_ce->name);
|
|
}
|
|
|
|
zend_do_inheritance(ce, parent_ce TSRMLS_CC);
|
|
|
|
ce->refcount++;
|
|
|
|
/* Register the derived class */
|
|
if (zend_hash_add_ptr(class_table, Z_STR_P(op2), ce) == NULL) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot redeclare class %s", ce->name->val);
|
|
}
|
|
return ce;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_early_binding(TSRMLS_D) /* {{{ */
|
|
{
|
|
zend_op *opline = &CG(active_op_array)->opcodes[CG(active_op_array)->last-1];
|
|
HashTable *table;
|
|
|
|
while (opline->opcode == ZEND_TICKS && opline > CG(active_op_array)->opcodes) {
|
|
opline--;
|
|
}
|
|
|
|
switch (opline->opcode) {
|
|
case ZEND_DECLARE_FUNCTION:
|
|
if (do_bind_function(CG(active_op_array), opline, CG(function_table), 1) == FAILURE) {
|
|
return;
|
|
}
|
|
table = CG(function_table);
|
|
break;
|
|
case ZEND_DECLARE_CLASS:
|
|
if (do_bind_class(CG(active_op_array), opline, CG(class_table), 1 TSRMLS_CC) == NULL) {
|
|
return;
|
|
}
|
|
table = CG(class_table);
|
|
break;
|
|
case ZEND_DECLARE_INHERITED_CLASS:
|
|
{
|
|
zend_op *fetch_class_opline = opline-1;
|
|
zval *parent_name;
|
|
zend_class_entry *ce;
|
|
|
|
parent_name = &CONSTANT(fetch_class_opline->op2.constant);
|
|
if (((ce = zend_lookup_class(Z_STR_P(parent_name) TSRMLS_CC)) == NULL) ||
|
|
((CG(compiler_options) & ZEND_COMPILE_IGNORE_INTERNAL_CLASSES) &&
|
|
(ce->type == ZEND_INTERNAL_CLASS))) {
|
|
if (CG(compiler_options) & ZEND_COMPILE_DELAYED_BINDING) {
|
|
zend_uint *opline_num = &CG(active_op_array)->early_binding;
|
|
|
|
while (*opline_num != -1) {
|
|
opline_num = &CG(active_op_array)->opcodes[*opline_num].result.opline_num;
|
|
}
|
|
*opline_num = opline - CG(active_op_array)->opcodes;
|
|
opline->opcode = ZEND_DECLARE_INHERITED_CLASS_DELAYED;
|
|
opline->result_type = IS_UNUSED;
|
|
opline->result.opline_num = -1;
|
|
}
|
|
return;
|
|
}
|
|
if (do_bind_inherited_class(CG(active_op_array), opline, CG(class_table), ce, 1 TSRMLS_CC) == NULL) {
|
|
return;
|
|
}
|
|
/* clear unnecessary ZEND_FETCH_CLASS opcode */
|
|
zend_del_literal(CG(active_op_array), fetch_class_opline->op2.constant);
|
|
MAKE_NOP(fetch_class_opline);
|
|
|
|
table = CG(class_table);
|
|
break;
|
|
}
|
|
case ZEND_VERIFY_ABSTRACT_CLASS:
|
|
case ZEND_ADD_INTERFACE:
|
|
case ZEND_ADD_TRAIT:
|
|
case ZEND_BIND_TRAITS:
|
|
/* We currently don't early-bind classes that implement interfaces */
|
|
/* Classes with traits are handled exactly the same, no early-bind here */
|
|
return;
|
|
default:
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Invalid binding type");
|
|
return;
|
|
}
|
|
|
|
zend_hash_del(table, Z_STR(CONSTANT(opline->op1.constant)));
|
|
zend_del_literal(CG(active_op_array), opline->op1.constant);
|
|
zend_del_literal(CG(active_op_array), opline->op2.constant);
|
|
MAKE_NOP(opline);
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API void zend_do_delayed_early_binding(const zend_op_array *op_array TSRMLS_DC) /* {{{ */
|
|
{
|
|
if (op_array->early_binding != -1) {
|
|
zend_bool orig_in_compilation = CG(in_compilation);
|
|
zend_uint opline_num = op_array->early_binding;
|
|
zend_class_entry *ce;
|
|
|
|
CG(in_compilation) = 1;
|
|
while (opline_num != -1) {
|
|
if ((ce = zend_lookup_class(Z_STR_P(op_array->opcodes[opline_num-1].op2.zv) TSRMLS_CC)) != NULL) {
|
|
do_bind_inherited_class(op_array, &op_array->opcodes[opline_num], EG(class_table), ce, 0 TSRMLS_CC);
|
|
}
|
|
opline_num = op_array->opcodes[opline_num].result.opline_num;
|
|
}
|
|
CG(in_compilation) = orig_in_compilation;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_boolean_or_begin(znode *expr1, znode *op_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
int next_op_number = get_next_op_number(CG(active_op_array));
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_JMPNZ_EX;
|
|
if (expr1->op_type == IS_TMP_VAR) {
|
|
SET_NODE(opline->result, expr1);
|
|
} else {
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
opline->result_type = IS_TMP_VAR;
|
|
}
|
|
SET_NODE(opline->op1, expr1);
|
|
SET_UNUSED(opline->op2);
|
|
|
|
op_token->u.op.opline_num = next_op_number;
|
|
|
|
GET_NODE(expr1, opline->result);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_boolean_or_end(znode *result, const znode *expr1, const znode *expr2, znode *op_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
*result = *expr1; /* we saved the original result in expr1 */
|
|
opline->opcode = ZEND_BOOL;
|
|
SET_NODE(opline->result, result);
|
|
SET_NODE(opline->op1, expr2);
|
|
SET_UNUSED(opline->op2);
|
|
|
|
CG(active_op_array)->opcodes[op_token->u.op.opline_num].op2.opline_num = get_next_op_number(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_boolean_and_begin(znode *expr1, znode *op_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
int next_op_number = get_next_op_number(CG(active_op_array));
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_JMPZ_EX;
|
|
if (expr1->op_type == IS_TMP_VAR) {
|
|
SET_NODE(opline->result, expr1);
|
|
} else {
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
opline->result_type = IS_TMP_VAR;
|
|
}
|
|
SET_NODE(opline->op1, expr1);
|
|
SET_UNUSED(opline->op2);
|
|
|
|
op_token->u.op.opline_num = next_op_number;
|
|
|
|
GET_NODE(expr1, opline->result);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_boolean_and_end(znode *result, const znode *expr1, const znode *expr2, const znode *op_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
*result = *expr1; /* we saved the original result in expr1 */
|
|
opline->opcode = ZEND_BOOL;
|
|
SET_NODE(opline->result, result);
|
|
SET_NODE(opline->op1, expr2);
|
|
SET_UNUSED(opline->op2);
|
|
|
|
CG(active_op_array)->opcodes[op_token->u.op.opline_num].op2.opline_num = get_next_op_number(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_do_while_begin(TSRMLS_D) /* {{{ */
|
|
{
|
|
do_begin_loop(TSRMLS_C);
|
|
INC_BPC(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_do_while_end(const znode *do_token, const znode *expr_open_bracket, const znode *expr TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_JMPNZ;
|
|
SET_NODE(opline->op1, expr);
|
|
opline->op2.opline_num = do_token->u.op.opline_num;
|
|
SET_UNUSED(opline->op2);
|
|
|
|
do_end_loop(expr_open_bracket->u.op.opline_num, 0 TSRMLS_CC);
|
|
|
|
DEC_BPC(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_brk_cont(zend_uchar op, const znode *expr TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = op;
|
|
opline->op1.opline_num = CG(context).current_brk_cont;
|
|
SET_UNUSED(opline->op1);
|
|
if (expr) {
|
|
if (expr->op_type != IS_CONST) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "'%s' operator with non-constant operand is no longer supported", op == ZEND_BRK ? "break" : "continue");
|
|
} else if (Z_TYPE(expr->u.constant) != IS_LONG || Z_LVAL(expr->u.constant) < 1) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "'%s' operator accepts only positive numbers", op == ZEND_BRK ? "break" : "continue");
|
|
}
|
|
SET_NODE(opline->op2, expr);
|
|
} else {
|
|
LITERAL_LONG(opline->op2, 1);
|
|
opline->op2_type = IS_CONST;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_switch_cond(const znode *cond TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_switch_entry switch_entry;
|
|
|
|
switch_entry.cond = *cond;
|
|
switch_entry.default_case = -1;
|
|
switch_entry.control_var = -1;
|
|
zend_stack_push(&CG(switch_cond_stack), (void *) &switch_entry, sizeof(switch_entry));
|
|
|
|
do_begin_loop(TSRMLS_C);
|
|
|
|
INC_BPC(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_switch_end(const znode *case_list TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
zend_switch_entry *switch_entry_ptr;
|
|
|
|
zend_stack_top(&CG(switch_cond_stack), (void **) &switch_entry_ptr);
|
|
|
|
/* add code to jmp to default case */
|
|
if (switch_entry_ptr->default_case != -1) {
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_JMP;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
opline->op1.opline_num = switch_entry_ptr->default_case;
|
|
}
|
|
|
|
if (case_list->op_type != IS_UNUSED) { /* non-empty switch */
|
|
int next_op_number = get_next_op_number(CG(active_op_array));
|
|
|
|
CG(active_op_array)->opcodes[case_list->u.op.opline_num].op1.opline_num = next_op_number;
|
|
}
|
|
|
|
/* remember break/continue loop information */
|
|
CG(active_op_array)->brk_cont_array[CG(context).current_brk_cont].cont = CG(active_op_array)->brk_cont_array[CG(context).current_brk_cont].brk = get_next_op_number(CG(active_op_array));
|
|
CG(context).current_brk_cont = CG(active_op_array)->brk_cont_array[CG(context).current_brk_cont].parent;
|
|
|
|
if (switch_entry_ptr->cond.op_type==IS_VAR || switch_entry_ptr->cond.op_type==IS_TMP_VAR) {
|
|
/* emit free for the switch condition*/
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = (switch_entry_ptr->cond.op_type == IS_TMP_VAR) ? ZEND_FREE : ZEND_SWITCH_FREE;
|
|
SET_NODE(opline->op1, &switch_entry_ptr->cond);
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
if (switch_entry_ptr->cond.op_type == IS_CONST) {
|
|
zval_dtor(&switch_entry_ptr->cond.u.constant);
|
|
}
|
|
|
|
zend_stack_del_top(&CG(switch_cond_stack));
|
|
|
|
DEC_BPC(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_case_before_statement(const znode *case_list, znode *case_token, const znode *case_expr TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
int next_op_number;
|
|
zend_switch_entry *switch_entry_ptr;
|
|
znode result;
|
|
|
|
zend_stack_top(&CG(switch_cond_stack), (void **) &switch_entry_ptr);
|
|
|
|
if (switch_entry_ptr->control_var == -1) {
|
|
switch_entry_ptr->control_var = get_temporary_variable(CG(active_op_array));
|
|
}
|
|
opline->opcode = ZEND_CASE;
|
|
opline->result.var = switch_entry_ptr->control_var;
|
|
opline->result_type = IS_TMP_VAR;
|
|
SET_NODE(opline->op1, &switch_entry_ptr->cond);
|
|
SET_NODE(opline->op2, case_expr);
|
|
if (opline->op1_type == IS_CONST) {
|
|
zval_copy_ctor(&CONSTANT(opline->op1.constant));
|
|
}
|
|
GET_NODE(&result, opline->result);
|
|
|
|
next_op_number = get_next_op_number(CG(active_op_array));
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_JMPZ;
|
|
SET_NODE(opline->op1, &result);
|
|
SET_UNUSED(opline->op2);
|
|
case_token->u.op.opline_num = next_op_number;
|
|
|
|
if (case_list->op_type==IS_UNUSED) {
|
|
return;
|
|
}
|
|
next_op_number = get_next_op_number(CG(active_op_array));
|
|
CG(active_op_array)->opcodes[case_list->u.op.opline_num].op1.opline_num = next_op_number;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_case_after_statement(znode *result, const znode *case_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
int next_op_number = get_next_op_number(CG(active_op_array));
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_JMP;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
result->u.op.opline_num = next_op_number;
|
|
|
|
switch (CG(active_op_array)->opcodes[case_token->u.op.opline_num].opcode) {
|
|
case ZEND_JMP:
|
|
CG(active_op_array)->opcodes[case_token->u.op.opline_num].op1.opline_num = get_next_op_number(CG(active_op_array));
|
|
break;
|
|
case ZEND_JMPZ:
|
|
CG(active_op_array)->opcodes[case_token->u.op.opline_num].op2.opline_num = get_next_op_number(CG(active_op_array));
|
|
break;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_default_before_statement(const znode *case_list, znode *default_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
int next_op_number = get_next_op_number(CG(active_op_array));
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
zend_switch_entry *switch_entry_ptr;
|
|
|
|
zend_stack_top(&CG(switch_cond_stack), (void **) &switch_entry_ptr);
|
|
|
|
opline->opcode = ZEND_JMP;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
default_token->u.op.opline_num = next_op_number;
|
|
|
|
next_op_number = get_next_op_number(CG(active_op_array));
|
|
switch_entry_ptr->default_case = next_op_number;
|
|
|
|
if (case_list->op_type==IS_UNUSED) {
|
|
return;
|
|
}
|
|
CG(active_op_array)->opcodes[case_list->u.op.opline_num].op1.opline_num = next_op_number;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_begin_class_declaration(const znode *class_token, znode *class_name, const znode *parent_class_name TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
int doing_inheritance = 0;
|
|
zend_class_entry *new_class_entry;
|
|
zend_string *lcname;
|
|
int error = 0;
|
|
zval *ns_name, key;
|
|
|
|
if (CG(active_class_entry)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Class declarations may not be nested");
|
|
return;
|
|
}
|
|
|
|
lcname = STR_ALLOC(Z_STRLEN(class_name->u.constant), 0);
|
|
zend_str_tolower_copy(lcname->val, Z_STRVAL(class_name->u.constant), Z_STRLEN(class_name->u.constant));
|
|
|
|
if (!(strcmp(lcname->val, "self") && strcmp(lcname->val, "parent"))) {
|
|
STR_FREE(lcname);
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use '%s' as class name as it is reserved", Z_STRVAL(class_name->u.constant));
|
|
}
|
|
|
|
/* Class name must not conflict with import names */
|
|
if (CG(current_import) &&
|
|
(ns_name = zend_hash_find(CG(current_import), lcname)) != NULL) {
|
|
error = 1;
|
|
}
|
|
|
|
if (Z_TYPE(CG(current_namespace)) != IS_UNDEF) {
|
|
/* Prefix class name with name of current namespace */
|
|
znode tmp;
|
|
|
|
tmp.op_type = IS_CONST;
|
|
ZVAL_DUP(&tmp.u.constant, &CG(current_namespace));
|
|
zend_do_build_namespace_name(&tmp, &tmp, class_name TSRMLS_CC);
|
|
*class_name = tmp;
|
|
STR_FREE(lcname);
|
|
STR_ALLOC(Z_STRLEN(class_name->u.constant), 0);
|
|
zend_str_tolower_copy(lcname->val, Z_STRVAL(class_name->u.constant), Z_STRLEN(class_name->u.constant));
|
|
}
|
|
|
|
if (error) {
|
|
char *tmp = zend_str_tolower_dup(Z_STRVAL_P(ns_name), Z_STRLEN_P(ns_name));
|
|
|
|
if (Z_STRLEN_P(ns_name) != Z_STRLEN(class_name->u.constant) ||
|
|
memcmp(tmp, lcname->val, Z_STRLEN(class_name->u.constant))) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot declare class %s because the name is already in use", Z_STRVAL(class_name->u.constant));
|
|
}
|
|
efree(tmp);
|
|
}
|
|
|
|
new_class_entry = emalloc(sizeof(zend_class_entry));
|
|
new_class_entry->type = ZEND_USER_CLASS;
|
|
new_class_entry->name = zend_new_interned_string(Z_STR(class_name->u.constant) TSRMLS_CC);
|
|
|
|
zend_initialize_class_data(new_class_entry, 1 TSRMLS_CC);
|
|
new_class_entry->info.user.filename = zend_get_compiled_filename(TSRMLS_C);
|
|
new_class_entry->info.user.line_start = class_token->u.op.opline_num;
|
|
new_class_entry->ce_flags |= class_token->EA;
|
|
|
|
if (parent_class_name && parent_class_name->op_type != IS_UNUSED) {
|
|
switch (parent_class_name->EA) {
|
|
case ZEND_FETCH_CLASS_SELF:
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use 'self' as class name as it is reserved");
|
|
break;
|
|
case ZEND_FETCH_CLASS_PARENT:
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use 'parent' as class name as it is reserved");
|
|
break;
|
|
case ZEND_FETCH_CLASS_STATIC:
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use 'static' as class name as it is reserved");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
doing_inheritance = 1;
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->op1_type = IS_CONST;
|
|
build_runtime_defined_function_key(&key, lcname->val, lcname->len TSRMLS_CC);
|
|
opline->op1.constant = zend_add_literal(CG(active_op_array), &key TSRMLS_CC);
|
|
|
|
opline->op2_type = IS_CONST;
|
|
|
|
if (doing_inheritance) {
|
|
/* Make sure a trait does not try to extend a class */
|
|
if ((new_class_entry->ce_flags & ZEND_ACC_TRAIT) == ZEND_ACC_TRAIT) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "A trait (%s) cannot extend a class. Traits can only be composed from other traits with the 'use' keyword. Error", new_class_entry->name);
|
|
}
|
|
|
|
opline->extended_value = parent_class_name->u.op.var;
|
|
opline->opcode = ZEND_DECLARE_INHERITED_CLASS;
|
|
} else {
|
|
opline->opcode = ZEND_DECLARE_CLASS;
|
|
}
|
|
|
|
LITERAL_STR(opline->op2, lcname);
|
|
|
|
zend_hash_update_ptr(CG(class_table), Z_STR(key), new_class_entry);
|
|
CG(active_class_entry) = new_class_entry;
|
|
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
opline->result_type = IS_VAR;
|
|
GET_NODE(&CG(implementing_class), opline->result);
|
|
|
|
if (CG(doc_comment)) {
|
|
CG(active_class_entry)->info.user.doc_comment = CG(doc_comment);
|
|
CG(doc_comment) = NULL;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
static void do_verify_abstract_class(TSRMLS_D) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_VERIFY_ABSTRACT_CLASS;
|
|
SET_NODE(opline->op1, &CG(implementing_class));
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_end_class_declaration(const znode *class_token, const znode *parent_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_class_entry *ce = CG(active_class_entry);
|
|
|
|
if (ce->constructor) {
|
|
ce->constructor->common.fn_flags |= ZEND_ACC_CTOR;
|
|
if (ce->constructor->common.fn_flags & ZEND_ACC_STATIC) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Constructor %s::%s() cannot be static", ce->name, ce->constructor->common.function_name);
|
|
}
|
|
}
|
|
if (ce->destructor) {
|
|
ce->destructor->common.fn_flags |= ZEND_ACC_DTOR;
|
|
if (ce->destructor->common.fn_flags & ZEND_ACC_STATIC) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Destructor %s::%s() cannot be static", ce->name, ce->destructor->common.function_name);
|
|
}
|
|
}
|
|
if (ce->clone) {
|
|
ce->clone->common.fn_flags |= ZEND_ACC_CLONE;
|
|
if (ce->clone->common.fn_flags & ZEND_ACC_STATIC) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Clone method %s::%s() cannot be static", ce->name, ce->clone->common.function_name);
|
|
}
|
|
}
|
|
|
|
ce->info.user.line_end = zend_get_compiled_lineno(TSRMLS_C);
|
|
|
|
/* Check for traits and proceed like with interfaces.
|
|
* The only difference will be a combined handling of them in the end.
|
|
* Thus, we need another opcode here. */
|
|
if (ce->num_traits > 0) {
|
|
zend_op *opline;
|
|
|
|
ce->traits = NULL;
|
|
ce->num_traits = 0;
|
|
ce->ce_flags |= ZEND_ACC_IMPLEMENT_TRAITS;
|
|
|
|
/* opcode generation: */
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_BIND_TRAITS;
|
|
SET_NODE(opline->op1, &CG(implementing_class));
|
|
}
|
|
|
|
if (!(ce->ce_flags & (ZEND_ACC_INTERFACE|ZEND_ACC_EXPLICIT_ABSTRACT_CLASS))
|
|
&& (parent_token || (ce->num_interfaces > 0))) {
|
|
zend_verify_abstract_class(ce TSRMLS_CC);
|
|
if (ce->num_interfaces && !(ce->ce_flags & ZEND_ACC_IMPLEMENT_TRAITS)) {
|
|
do_verify_abstract_class(TSRMLS_C);
|
|
}
|
|
}
|
|
/* Inherit interfaces; reset number to zero, we need it for above check and
|
|
* will restore it during actual implementation.
|
|
* The ZEND_ACC_IMPLEMENT_INTERFACES flag disables double call to
|
|
* zend_verify_abstract_class() */
|
|
if (ce->num_interfaces > 0) {
|
|
ce->interfaces = NULL;
|
|
ce->num_interfaces = 0;
|
|
ce->ce_flags |= ZEND_ACC_IMPLEMENT_INTERFACES;
|
|
}
|
|
|
|
CG(active_class_entry) = NULL;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_implements_interface(znode *interface_name TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
|
|
/* Traits can not implement interfaces */
|
|
if ((CG(active_class_entry)->ce_flags & ZEND_ACC_TRAIT) == ZEND_ACC_TRAIT) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use '%s' as interface on '%s' since it is a Trait",
|
|
Z_STRVAL(interface_name->u.constant),
|
|
CG(active_class_entry)->name);
|
|
}
|
|
|
|
switch (zend_get_class_fetch_type(Z_STRVAL(interface_name->u.constant), Z_STRLEN(interface_name->u.constant))) {
|
|
case ZEND_FETCH_CLASS_SELF:
|
|
case ZEND_FETCH_CLASS_PARENT:
|
|
case ZEND_FETCH_CLASS_STATIC:
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use '%s' as interface name as it is reserved", Z_STRVAL(interface_name->u.constant));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_ADD_INTERFACE;
|
|
SET_NODE(opline->op1, &CG(implementing_class));
|
|
zend_resolve_class_name(interface_name TSRMLS_CC);
|
|
opline->extended_value = (opline->extended_value & ~ZEND_FETCH_CLASS_MASK) | ZEND_FETCH_CLASS_INTERFACE;
|
|
opline->op2_type = IS_CONST;
|
|
opline->op2.constant = zend_add_class_name_literal(CG(active_op_array), &interface_name->u.constant TSRMLS_CC);
|
|
CG(active_class_entry)->num_interfaces++;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_use_trait(znode *trait_name TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
|
|
if ((CG(active_class_entry)->ce_flags & ZEND_ACC_INTERFACE)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR,
|
|
"Cannot use traits inside of interfaces. %s is used in %s",
|
|
Z_STRVAL(trait_name->u.constant), CG(active_class_entry)->name);
|
|
}
|
|
|
|
|
|
switch (zend_get_class_fetch_type(Z_STRVAL(trait_name->u.constant), Z_STRLEN(trait_name->u.constant))) {
|
|
case ZEND_FETCH_CLASS_SELF:
|
|
case ZEND_FETCH_CLASS_PARENT:
|
|
case ZEND_FETCH_CLASS_STATIC:
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use '%s' as trait name as it is reserved", Z_STRVAL(trait_name->u.constant));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_ADD_TRAIT;
|
|
SET_NODE(opline->op1, &CG(implementing_class));
|
|
zend_resolve_class_name(trait_name TSRMLS_CC);
|
|
opline->extended_value = ZEND_FETCH_CLASS_TRAIT;
|
|
opline->op2_type = IS_CONST;
|
|
opline->op2.constant = zend_add_class_name_literal(CG(active_op_array), &trait_name->u.constant TSRMLS_CC);
|
|
CG(active_class_entry)->num_traits++;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API zend_string *zend_mangle_property_name(const char *src1, int src1_length, const char *src2, int src2_length, int internal) /* {{{ */
|
|
{
|
|
zend_string *prop_name;
|
|
int prop_name_length;
|
|
|
|
prop_name_length = 1 + src1_length + 1 + src2_length;
|
|
prop_name = STR_ALLOC(prop_name_length, internal);
|
|
prop_name->val[0] = '\0';
|
|
memcpy(prop_name->val + 1, src1, src1_length+1);
|
|
memcpy(prop_name->val + 1 + src1_length + 1, src2, src2_length+1);
|
|
return prop_name;
|
|
}
|
|
/* }}} */
|
|
|
|
static int zend_strnlen(const char* s, int maxlen) /* {{{ */
|
|
{
|
|
int len = 0;
|
|
while (*s++ && maxlen--) len++;
|
|
return len;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API int zend_unmangle_property_name_ex(const char *mangled_property, int len, const char **class_name, const char **prop_name, int *prop_len) /* {{{ */
|
|
{
|
|
int class_name_len;
|
|
|
|
*class_name = NULL;
|
|
|
|
if (mangled_property[0]!=0) {
|
|
*prop_name = mangled_property;
|
|
if (prop_len) {
|
|
*prop_len = len;
|
|
}
|
|
return SUCCESS;
|
|
}
|
|
if (len < 3 || mangled_property[1]==0) {
|
|
zend_error(E_NOTICE, "Illegal member variable name");
|
|
*prop_name = mangled_property;
|
|
if (prop_len) {
|
|
*prop_len = len;
|
|
}
|
|
return FAILURE;
|
|
}
|
|
|
|
class_name_len = zend_strnlen(mangled_property + 1, --len - 1) + 1;
|
|
if (class_name_len >= len || mangled_property[class_name_len]!=0) {
|
|
zend_error(E_NOTICE, "Corrupt member variable name");
|
|
*prop_name = mangled_property;
|
|
if (prop_len) {
|
|
*prop_len = len + 1;
|
|
}
|
|
return FAILURE;
|
|
}
|
|
*class_name = mangled_property + 1;
|
|
*prop_name = (*class_name) + class_name_len;
|
|
if (prop_len) {
|
|
*prop_len = len - class_name_len;
|
|
}
|
|
return SUCCESS;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_declare_property(znode *var_name, const znode *value, zend_uint access_type TSRMLS_DC) /* {{{ */
|
|
{
|
|
zval property;
|
|
zend_property_info *existing_property_info;
|
|
zend_string *comment = NULL;
|
|
|
|
if (CG(active_class_entry)->ce_flags & ZEND_ACC_INTERFACE) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Interfaces may not include member variables");
|
|
}
|
|
|
|
if (access_type & ZEND_ACC_ABSTRACT) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Properties cannot be declared abstract");
|
|
}
|
|
|
|
if (access_type & ZEND_ACC_FINAL) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot declare property %s::$%s final, the final modifier is allowed only for methods and classes",
|
|
CG(active_class_entry)->name, Z_STRVAL(var_name->u.constant));
|
|
}
|
|
|
|
if ((existing_property_info = zend_hash_find_ptr(&CG(active_class_entry)->properties_info, Z_STR(var_name->u.constant))) != NULL) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot redeclare %s::$%s", CG(active_class_entry)->name->val, Z_STRVAL(var_name->u.constant));
|
|
}
|
|
|
|
if (value) {
|
|
ZVAL_COPY_VALUE(&property, &value->u.constant);
|
|
} else {
|
|
ZVAL_NULL(&property);
|
|
}
|
|
|
|
if (CG(doc_comment)) {
|
|
comment = CG(doc_comment);
|
|
CG(doc_comment) = NULL;
|
|
}
|
|
|
|
Z_STR(var_name->u.constant) = zend_new_interned_string(Z_STR(var_name->u.constant) TSRMLS_CC);
|
|
zend_declare_property_ex(CG(active_class_entry), Z_STR(var_name->u.constant), &property, access_type, comment TSRMLS_CC);
|
|
//??? efree(Z_STRVAL(var_name->u.constant));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_declare_class_constant(znode *var_name, const znode *value TSRMLS_DC) /* {{{ */
|
|
{
|
|
zval property;
|
|
zend_string *cname = NULL;
|
|
|
|
if(Z_TYPE(value->u.constant) == IS_CONSTANT_ARRAY) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Arrays are not allowed in class constants");
|
|
return;
|
|
}
|
|
if ((CG(active_class_entry)->ce_flags & ZEND_ACC_TRAIT) == ZEND_ACC_TRAIT) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Traits cannot have constants");
|
|
return;
|
|
}
|
|
|
|
ZVAL_COPY_VALUE(&property, &value->u.constant);
|
|
|
|
cname = zend_new_interned_string(Z_STR(var_name->u.constant) TSRMLS_CC);
|
|
if (zend_hash_add(&CG(active_class_entry)->constants_table, cname, &property) == NULL) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot redefine class constant %s::%s", CG(active_class_entry)->name->val, Z_STRVAL(var_name->u.constant));
|
|
}
|
|
FREE_PNODE(var_name);
|
|
|
|
if (CG(doc_comment)) {
|
|
STR_RELEASE(CG(doc_comment));
|
|
CG(doc_comment) = NULL;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_fetch_property(znode *result, znode *object, const znode *property TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op opline;
|
|
zend_llist *fetch_list_ptr;
|
|
|
|
zend_stack_top(&CG(bp_stack), (void **) &fetch_list_ptr);
|
|
|
|
if (object->op_type == IS_CV) {
|
|
if (object->u.op.var == CG(active_op_array)->this_var) {
|
|
object->op_type = IS_UNUSED; /* this means $this for objects */
|
|
}
|
|
} else if (fetch_list_ptr->count == 1) {
|
|
zend_llist_element *le = fetch_list_ptr->head;
|
|
zend_op *opline_ptr = (zend_op *) le->data;
|
|
|
|
if (opline_is_fetch_this(opline_ptr TSRMLS_CC)) {
|
|
zend_del_literal(CG(active_op_array), opline_ptr->op1.constant);
|
|
SET_UNUSED(opline_ptr->op1); /* this means $this for objects */
|
|
SET_NODE(opline_ptr->op2, property);
|
|
/* if it was usual fetch, we change it to object fetch */
|
|
switch (opline_ptr->opcode) {
|
|
case ZEND_FETCH_W:
|
|
opline_ptr->opcode = ZEND_FETCH_OBJ_W;
|
|
break;
|
|
case ZEND_FETCH_R:
|
|
opline_ptr->opcode = ZEND_FETCH_OBJ_R;
|
|
break;
|
|
case ZEND_FETCH_RW:
|
|
opline_ptr->opcode = ZEND_FETCH_OBJ_RW;
|
|
break;
|
|
case ZEND_FETCH_IS:
|
|
opline_ptr->opcode = ZEND_FETCH_OBJ_IS;
|
|
break;
|
|
case ZEND_FETCH_UNSET:
|
|
opline_ptr->opcode = ZEND_FETCH_OBJ_UNSET;
|
|
break;
|
|
case ZEND_FETCH_FUNC_ARG:
|
|
opline_ptr->opcode = ZEND_FETCH_OBJ_FUNC_ARG;
|
|
break;
|
|
}
|
|
if (opline_ptr->op2_type == IS_CONST && Z_TYPE(CONSTANT(opline_ptr->op2.constant)) == IS_STRING) {
|
|
//??? CALCULATE_LITERAL_HASH(opline_ptr->op2.constant);
|
|
GET_POLYMORPHIC_CACHE_SLOT(opline_ptr->op2.constant);
|
|
}
|
|
GET_NODE(result, opline_ptr->result);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (zend_is_function_or_method_call(object)) {
|
|
init_op(&opline TSRMLS_CC);
|
|
opline.opcode = ZEND_SEPARATE;
|
|
SET_NODE(opline.op1, object);
|
|
SET_UNUSED(opline.op2);
|
|
opline.result_type = IS_VAR;
|
|
opline.result.var = opline.op1.var;
|
|
zend_llist_add_element(fetch_list_ptr, &opline);
|
|
}
|
|
|
|
init_op(&opline TSRMLS_CC);
|
|
opline.opcode = ZEND_FETCH_OBJ_W; /* the backpatching routine assumes W */
|
|
opline.result_type = IS_VAR;
|
|
opline.result.var = get_temporary_variable(CG(active_op_array));
|
|
SET_NODE(opline.op1, object);
|
|
SET_NODE(opline.op2, property);
|
|
if (opline.op2_type == IS_CONST && Z_TYPE(CONSTANT(opline.op2.constant)) == IS_STRING) {
|
|
//??? CALCULATE_LITERAL_HASH(opline.op2.constant);
|
|
GET_POLYMORPHIC_CACHE_SLOT(opline.op2.constant);
|
|
}
|
|
GET_NODE(result, opline.result);
|
|
|
|
zend_llist_add_element(fetch_list_ptr, &opline);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_halt_compiler_register(TSRMLS_D) /* {{{ */
|
|
{
|
|
zend_string *name;
|
|
zend_string *cfilename;
|
|
char haltoff[] = "__COMPILER_HALT_OFFSET__";
|
|
|
|
if (CG(has_bracketed_namespaces) && CG(in_namespace)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "__HALT_COMPILER() can only be used from the outermost scope");
|
|
}
|
|
|
|
cfilename = zend_get_compiled_filename(TSRMLS_C);
|
|
name = zend_mangle_property_name(haltoff, sizeof(haltoff) - 1, cfilename->val, cfilename->len, 0);
|
|
zend_register_long_constant(name->val, name->len, zend_get_scanned_file_offset(TSRMLS_C), CONST_CS, 0 TSRMLS_CC);
|
|
STR_FREE(name);
|
|
|
|
if (CG(in_namespace)) {
|
|
zend_do_end_namespace(TSRMLS_C);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_push_object(const znode *object TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_stack_push(&CG(object_stack), object, sizeof(znode));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_pop_object(znode *object TSRMLS_DC) /* {{{ */
|
|
{
|
|
if (object) {
|
|
znode *tmp;
|
|
|
|
zend_stack_top(&CG(object_stack), (void **) &tmp);
|
|
*object = *tmp;
|
|
}
|
|
zend_stack_del_top(&CG(object_stack));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_begin_new_object(znode *new_token, znode *class_type TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
unsigned char *ptr = NULL;
|
|
|
|
new_token->u.op.opline_num = get_next_op_number(CG(active_op_array));
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_NEW;
|
|
opline->extended_value = CG(context).nested_calls;
|
|
opline->result_type = IS_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
SET_NODE(opline->op1, class_type);
|
|
SET_UNUSED(opline->op2);
|
|
|
|
zend_stack_push(&CG(function_call_stack), (void *) &ptr, sizeof(unsigned char *));
|
|
if (++CG(context).nested_calls > CG(active_op_array)->nested_calls) {
|
|
CG(active_op_array)->nested_calls = CG(context).nested_calls;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_end_new_object(znode *result, const znode *new_token, const znode *argument_list TSRMLS_DC) /* {{{ */
|
|
{
|
|
znode ctor_result;
|
|
|
|
zend_do_end_function_call(NULL, &ctor_result, argument_list, 1, 0 TSRMLS_CC);
|
|
zend_do_free(&ctor_result TSRMLS_CC);
|
|
|
|
CG(active_op_array)->opcodes[new_token->u.op.opline_num].op2.opline_num = get_next_op_number(CG(active_op_array));
|
|
GET_NODE(result, CG(active_op_array)->opcodes[new_token->u.op.opline_num].result);
|
|
}
|
|
/* }}} */
|
|
|
|
static zend_constant* zend_get_ct_const(const zval *const_name, int all_internal_constants_substitution TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_constant *c = NULL;
|
|
char *lookup_name;
|
|
|
|
if (Z_STRVAL_P(const_name)[0] == '\\') {
|
|
if ((c = zend_hash_str_find_ptr(EG(zend_constants), Z_STRVAL_P(const_name)+1, Z_STRLEN_P(const_name)-1)) == NULL) {
|
|
lookup_name = zend_str_tolower_dup(Z_STRVAL_P(const_name)+1, Z_STRLEN_P(const_name)-1);
|
|
if ((c = zend_hash_str_find_ptr(EG(zend_constants), lookup_name, Z_STRLEN_P(const_name)-1)) != NULL) {
|
|
if ((c->flags & CONST_CT_SUBST) && !(c->flags & CONST_CS)) {
|
|
efree(lookup_name);
|
|
return c;
|
|
}
|
|
}
|
|
efree(lookup_name);
|
|
return NULL;
|
|
}
|
|
} else if ((c = zend_hash_find_ptr(EG(zend_constants), Z_STR_P(const_name))) == NULL) {
|
|
lookup_name = zend_str_tolower_dup(Z_STRVAL_P(const_name), Z_STRLEN_P(const_name));
|
|
if ((c = zend_hash_str_find_ptr(EG(zend_constants), lookup_name, Z_STRLEN_P(const_name))) != NULL) {
|
|
if ((c->flags & CONST_CT_SUBST) && !(c->flags & CONST_CS)) {
|
|
efree(lookup_name);
|
|
return c;
|
|
}
|
|
}
|
|
efree(lookup_name);
|
|
return NULL;
|
|
}
|
|
if (c->flags & CONST_CT_SUBST) {
|
|
return c;
|
|
}
|
|
if (all_internal_constants_substitution &&
|
|
(c->flags & CONST_PERSISTENT) &&
|
|
!(CG(compiler_options) & ZEND_COMPILE_NO_CONSTANT_SUBSTITUTION) &&
|
|
!IS_CONSTANT_TYPE(Z_TYPE(c->value))) {
|
|
return c;
|
|
}
|
|
return NULL;
|
|
}
|
|
/* }}} */
|
|
|
|
static int zend_constant_ct_subst(znode *result, zval *const_name, int all_internal_constants_substitution TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_constant *c = zend_get_ct_const(const_name, all_internal_constants_substitution TSRMLS_CC);
|
|
|
|
if (c) {
|
|
zval_dtor(const_name);
|
|
result->op_type = IS_CONST;
|
|
result->u.constant = c->value;
|
|
zval_copy_ctor(&result->u.constant);
|
|
//??? INIT_PZVAL(&result->u.constant);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_fetch_constant(znode *result, znode *constant_container, znode *constant_name, int mode, zend_bool check_namespace TSRMLS_DC) /* {{{ */
|
|
{
|
|
znode tmp;
|
|
zend_op *opline;
|
|
int type;
|
|
char *compound;
|
|
ulong fetch_type = 0;
|
|
|
|
if (constant_container) {
|
|
switch (mode) {
|
|
case ZEND_CT:
|
|
/* this is a class constant */
|
|
type = zend_get_class_fetch_type(Z_STRVAL(constant_container->u.constant), Z_STRLEN(constant_container->u.constant));
|
|
|
|
if (ZEND_FETCH_CLASS_STATIC == type) {
|
|
zend_error(E_ERROR, "\"static::\" is not allowed in compile-time constants");
|
|
} else if (ZEND_FETCH_CLASS_DEFAULT == type) {
|
|
zend_resolve_class_name(constant_container TSRMLS_CC);
|
|
}
|
|
zend_do_build_full_name(NULL, constant_container, constant_name, 1 TSRMLS_CC);
|
|
*result = *constant_container;
|
|
result->u.constant.type = IS_CONSTANT | fetch_type;
|
|
break;
|
|
case ZEND_RT:
|
|
if (constant_container->op_type == IS_CONST &&
|
|
ZEND_FETCH_CLASS_DEFAULT == zend_get_class_fetch_type(Z_STRVAL(constant_container->u.constant), Z_STRLEN(constant_container->u.constant))) {
|
|
zend_resolve_class_name(constant_container TSRMLS_CC);
|
|
} else {
|
|
zend_do_fetch_class(&tmp, constant_container TSRMLS_CC);
|
|
constant_container = &tmp;
|
|
}
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_FETCH_CONSTANT;
|
|
opline->result_type = IS_TMP_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
if (constant_container->op_type == IS_CONST) {
|
|
opline->op1_type = IS_CONST;
|
|
opline->op1.constant = zend_add_class_name_literal(CG(active_op_array), &constant_container->u.constant TSRMLS_CC);
|
|
} else {
|
|
SET_NODE(opline->op1, constant_container);
|
|
}
|
|
SET_NODE(opline->op2, constant_name);
|
|
//??? CALCULATE_LITERAL_HASH(opline->op2.constant);
|
|
if (opline->op1_type == IS_CONST) {
|
|
GET_CACHE_SLOT(opline->op2.constant);
|
|
} else {
|
|
GET_POLYMORPHIC_CACHE_SLOT(opline->op2.constant);
|
|
}
|
|
GET_NODE(result, opline->result);
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
/* namespace constant */
|
|
/* only one that did not contain \ from the start can be converted to string if unknown */
|
|
switch (mode) {
|
|
case ZEND_CT:
|
|
compound = memchr(Z_STRVAL(constant_name->u.constant), '\\', Z_STRLEN(constant_name->u.constant));
|
|
/* this is a namespace constant, or an unprefixed constant */
|
|
|
|
if (zend_constant_ct_subst(result, &constant_name->u.constant, 0 TSRMLS_CC)) {
|
|
break;
|
|
}
|
|
|
|
zend_resolve_const_name(constant_name, &check_namespace TSRMLS_CC);
|
|
|
|
if(!compound) {
|
|
fetch_type |= IS_CONSTANT_UNQUALIFIED;
|
|
}
|
|
|
|
*result = *constant_name;
|
|
result->u.constant.type = IS_CONSTANT | fetch_type;
|
|
break;
|
|
case ZEND_RT:
|
|
compound = memchr(Z_STRVAL(constant_name->u.constant), '\\', Z_STRLEN(constant_name->u.constant));
|
|
|
|
zend_resolve_const_name(constant_name, &check_namespace TSRMLS_CC);
|
|
|
|
if(zend_constant_ct_subst(result, &constant_name->u.constant, 1 TSRMLS_CC)) {
|
|
break;
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_FETCH_CONSTANT;
|
|
opline->result_type = IS_TMP_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
GET_NODE(result, opline->result);
|
|
SET_UNUSED(opline->op1);
|
|
opline->op2_type = IS_CONST;
|
|
if (compound) {
|
|
/* the name is unambiguous */
|
|
opline->extended_value = 0;
|
|
opline->op2.constant = zend_add_const_name_literal(CG(active_op_array), &constant_name->u.constant, 0 TSRMLS_CC);
|
|
} else {
|
|
opline->extended_value = IS_CONSTANT_UNQUALIFIED;
|
|
if (Z_TYPE(CG(current_namespace)) != IS_UNDEF) {
|
|
opline->extended_value |= IS_CONSTANT_IN_NAMESPACE;
|
|
opline->op2.constant = zend_add_const_name_literal(CG(active_op_array), &constant_name->u.constant, 1 TSRMLS_CC);
|
|
} else {
|
|
opline->op2.constant = zend_add_const_name_literal(CG(active_op_array), &constant_name->u.constant, 0 TSRMLS_CC);
|
|
}
|
|
}
|
|
GET_CACHE_SLOT(opline->op2.constant);
|
|
break;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_shell_exec(znode *result, const znode *cmd TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
switch (cmd->op_type) {
|
|
case IS_CONST:
|
|
case IS_TMP_VAR:
|
|
opline->opcode = ZEND_SEND_VAL;
|
|
break;
|
|
default:
|
|
opline->opcode = ZEND_SEND_VAR;
|
|
break;
|
|
}
|
|
SET_NODE(opline->op1, cmd);
|
|
opline->op2.opline_num = 1;
|
|
opline->extended_value = ZEND_DO_FCALL;
|
|
SET_UNUSED(opline->op2);
|
|
|
|
/* FIXME: exception support not added to this op2 */
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_DO_FCALL;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
opline->result_type = IS_VAR;
|
|
LITERAL_STR(opline->op1, STR_INIT("shell_exec", sizeof("shell_exec")-1, 0));
|
|
//??? CALCULATE_LITERAL_HASH(opline->op1.constant);
|
|
opline->op1_type = IS_CONST;
|
|
GET_CACHE_SLOT(opline->op1.constant);
|
|
opline->extended_value = 1;
|
|
SET_UNUSED(opline->op2);
|
|
opline->op2.num = CG(context).nested_calls;
|
|
GET_NODE(result, opline->result);
|
|
|
|
if (CG(context).nested_calls + 1 > CG(active_op_array)->nested_calls) {
|
|
CG(active_op_array)->nested_calls = CG(context).nested_calls + 1;
|
|
}
|
|
if (CG(context).used_stack + 2 > CG(active_op_array)->used_stack) {
|
|
CG(active_op_array)->used_stack = CG(context).used_stack + 2;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_init_array(znode *result, const znode *expr, const znode *offset, zend_bool is_ref TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_INIT_ARRAY;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
opline->result_type = IS_TMP_VAR;
|
|
GET_NODE(result, opline->result);
|
|
if (expr) {
|
|
SET_NODE(opline->op1, expr);
|
|
if (offset) {
|
|
SET_NODE(opline->op2, offset);
|
|
if (opline->op2_type == IS_CONST && Z_TYPE(CONSTANT(opline->op2.constant)) == IS_STRING) {
|
|
ulong index;
|
|
int numeric = 0;
|
|
|
|
ZEND_HANDLE_NUMERIC_EX(Z_STRVAL(CONSTANT(opline->op2.constant)), Z_STRLEN(CONSTANT(opline->op2.constant))+1, index, numeric = 1);
|
|
if (numeric) {
|
|
zval_dtor(&CONSTANT(opline->op2.constant));
|
|
ZVAL_LONG(&CONSTANT(opline->op2.constant), index);
|
|
} else {
|
|
//??? CALCULATE_LITERAL_HASH(opline->op2.constant);
|
|
}
|
|
}
|
|
} else {
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
} else {
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
opline->extended_value = is_ref;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_add_array_element(znode *result, const znode *expr, const znode *offset, zend_bool is_ref TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_ADD_ARRAY_ELEMENT;
|
|
SET_NODE(opline->result, result);
|
|
SET_NODE(opline->op1, expr);
|
|
if (offset) {
|
|
SET_NODE(opline->op2, offset);
|
|
if (opline->op2_type == IS_CONST && Z_TYPE(CONSTANT(opline->op2.constant)) == IS_STRING) {
|
|
ulong index;
|
|
int numeric = 0;
|
|
|
|
ZEND_HANDLE_NUMERIC_EX(Z_STRVAL(CONSTANT(opline->op2.constant)), Z_STRLEN(CONSTANT(opline->op2.constant))+1, index, numeric = 1);
|
|
if (numeric) {
|
|
zval_dtor(&CONSTANT(opline->op2.constant));
|
|
ZVAL_LONG(&CONSTANT(opline->op2.constant), index);
|
|
} else {
|
|
//??? CALCULATE_LITERAL_HASH(opline->op2.constant);
|
|
}
|
|
}
|
|
} else {
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
opline->extended_value = is_ref;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_add_static_array_element(znode *result, znode *offset, const znode *expr) /* {{{ */
|
|
{
|
|
zval element;
|
|
|
|
ZVAL_COPY_VALUE(&element, &expr->u.constant);
|
|
if (offset) {
|
|
switch (Z_TYPE(offset->u.constant) & IS_CONSTANT_TYPE_MASK) {
|
|
case IS_CONSTANT:
|
|
/* Ugly hack to denote that this value has a constant index */
|
|
Z_TYPE(element) |= IS_CONSTANT_INDEX;
|
|
//??? Z_STRVAL(offset->u.constant) = erealloc(Z_STRVAL(offset->u.constant), Z_STRLEN(offset->u.constant)+3);
|
|
//??? Z_STRVAL(offset->u.constant)[Z_STRLEN(offset->u.constant)+1] = Z_TYPE(offset->u.constant);
|
|
//??? Z_STRVAL(offset->u.constant)[Z_STRLEN(offset->u.constant)+2] = 0;
|
|
//??? zend_symtable_update(Z_ARRVAL(result->u.constant), Z_STRVAL(offset->u.constant), Z_STRLEN(offset->u.constant)+3, &element, sizeof(zval *), NULL);
|
|
zval_dtor(&offset->u.constant);
|
|
break;
|
|
case IS_CONSTANT_AST: {
|
|
/* Another ugly hack to store the data about the AST in the array */
|
|
//??? char* key;
|
|
//??? int len = sizeof(zend_ast *);
|
|
Z_TYPE(element) |= IS_CONSTANT_INDEX;
|
|
|
|
//??? key = emalloc(len + 2);
|
|
//??? *(zend_ast **)key = Z_AST(offset->u.constant);
|
|
//??? key[len] = Z_TYPE(offset->u.constant);
|
|
//??? key[len + 1] = 0;
|
|
//??? zend_symtable_update(Z_ARRVAL(result->u.constant), key, len + 2, &element, sizeof(zval *), NULL);
|
|
//??? efree(key);
|
|
break;
|
|
}
|
|
case IS_STRING:
|
|
zend_symtable_update(Z_ARRVAL(result->u.constant), Z_STR(offset->u.constant), &element);
|
|
zval_dtor(&offset->u.constant);
|
|
break;
|
|
case IS_NULL:
|
|
zend_symtable_update(Z_ARRVAL(result->u.constant), STR_EMPTY_ALLOC(), &element);
|
|
break;
|
|
case IS_LONG:
|
|
case IS_BOOL:
|
|
zend_hash_index_update(Z_ARRVAL(result->u.constant), Z_LVAL(offset->u.constant), &element);
|
|
break;
|
|
case IS_DOUBLE:
|
|
zend_hash_index_update(Z_ARRVAL(result->u.constant), zend_dval_to_lval(Z_DVAL(offset->u.constant)), &element);
|
|
break;
|
|
case IS_CONSTANT_ARRAY:
|
|
zend_error(E_ERROR, "Illegal offset type");
|
|
break;
|
|
}
|
|
} else {
|
|
zend_hash_next_index_insert(Z_ARRVAL(result->u.constant), &element);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_add_list_element(const znode *element TSRMLS_DC) /* {{{ */
|
|
{
|
|
list_llist_element lle;
|
|
|
|
if (element) {
|
|
zend_check_writable_variable(element);
|
|
|
|
lle.var = *element;
|
|
zend_llist_copy(&lle.dimensions, &CG(dimension_llist));
|
|
zend_llist_prepend_element(&CG(list_llist), &lle);
|
|
}
|
|
(*((int *)CG(dimension_llist).tail->data))++;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_new_list_begin(TSRMLS_D) /* {{{ */
|
|
{
|
|
int current_dimension = 0;
|
|
zend_llist_add_element(&CG(dimension_llist), ¤t_dimension);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_new_list_end(TSRMLS_D) /* {{{ */
|
|
{
|
|
zend_llist_remove_tail(&CG(dimension_llist));
|
|
(*((int *)CG(dimension_llist).tail->data))++;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_list_init(TSRMLS_D) /* {{{ */
|
|
{
|
|
zend_stack_push(&CG(list_stack), &CG(list_llist), sizeof(zend_llist));
|
|
zend_stack_push(&CG(list_stack), &CG(dimension_llist), sizeof(zend_llist));
|
|
zend_llist_init(&CG(list_llist), sizeof(list_llist_element), NULL, 0);
|
|
zend_llist_init(&CG(dimension_llist), sizeof(int), NULL, 0);
|
|
zend_do_new_list_begin(TSRMLS_C);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_list_end(znode *result, znode *expr TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_llist_element *le;
|
|
zend_llist_element *dimension;
|
|
zend_op *opline;
|
|
znode last_container;
|
|
|
|
le = CG(list_llist).head;
|
|
while (le) {
|
|
zend_llist *tmp_dimension_llist = &((list_llist_element *)le->data)->dimensions;
|
|
dimension = tmp_dimension_llist->head;
|
|
while (dimension) {
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
if (dimension == tmp_dimension_llist->head) { /* first */
|
|
last_container = *expr;
|
|
switch (expr->op_type) {
|
|
case IS_VAR:
|
|
case IS_CV:
|
|
opline->opcode = ZEND_FETCH_DIM_R;
|
|
break;
|
|
case IS_TMP_VAR:
|
|
opline->opcode = ZEND_FETCH_DIM_TMP_VAR;
|
|
break;
|
|
case IS_CONST: /* fetch_dim_tmp_var will handle this bogus fetch */
|
|
zval_copy_ctor(&expr->u.constant);
|
|
opline->opcode = ZEND_FETCH_DIM_TMP_VAR;
|
|
break;
|
|
}
|
|
opline->extended_value |= ZEND_FETCH_ADD_LOCK;
|
|
} else {
|
|
opline->opcode = ZEND_FETCH_DIM_R;
|
|
}
|
|
opline->result_type = IS_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
SET_NODE(opline->op1, &last_container);
|
|
opline->op2_type = IS_CONST;
|
|
LITERAL_LONG(opline->op2, *((int *) dimension->data));
|
|
GET_NODE(&last_container, opline->result);
|
|
dimension = dimension->next;
|
|
}
|
|
((list_llist_element *) le->data)->value = last_container;
|
|
zend_llist_destroy(&((list_llist_element *) le->data)->dimensions);
|
|
zend_do_assign(result, &((list_llist_element *) le->data)->var, &((list_llist_element *) le->data)->value TSRMLS_CC);
|
|
zend_do_free(result TSRMLS_CC);
|
|
le = le->next;
|
|
}
|
|
zend_llist_destroy(&CG(dimension_llist));
|
|
zend_llist_destroy(&CG(list_llist));
|
|
*result = *expr;
|
|
{
|
|
zend_llist *p;
|
|
|
|
/* restore previous lists */
|
|
zend_stack_top(&CG(list_stack), (void **) &p);
|
|
CG(dimension_llist) = *p;
|
|
zend_stack_del_top(&CG(list_stack));
|
|
zend_stack_top(&CG(list_stack), (void **) &p);
|
|
CG(list_llist) = *p;
|
|
zend_stack_del_top(&CG(list_stack));
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_init_list(void *result, void *item TSRMLS_DC) /* {{{ */
|
|
{
|
|
void** list = emalloc(sizeof(void*) * 2);
|
|
|
|
list[0] = item;
|
|
list[1] = NULL;
|
|
|
|
*(void**)result = list;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_add_to_list(void *result, void *item TSRMLS_DC) /* {{{ */
|
|
{
|
|
void** list = *(void**)result;
|
|
size_t n = 0;
|
|
|
|
if (list) {
|
|
while (list[n]) {
|
|
n++;
|
|
}
|
|
}
|
|
|
|
list = erealloc(list, sizeof(void*) * (n+2));
|
|
|
|
list[n] = item;
|
|
list[n+1] = NULL;
|
|
|
|
*(void**)result = list;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_fetch_static_variable(znode *varname, const znode *static_assignment, int fetch_type TSRMLS_DC) /* {{{ */
|
|
{
|
|
zval tmp;
|
|
zend_op *opline;
|
|
znode lval;
|
|
znode result;
|
|
|
|
if (static_assignment) {
|
|
ZVAL_COPY_VALUE(&tmp, &static_assignment->u.constant);
|
|
} else {
|
|
ZVAL_NULL(&tmp);
|
|
}
|
|
if (!CG(active_op_array)->static_variables) {
|
|
if (CG(active_op_array)->scope) {
|
|
CG(active_op_array)->scope->ce_flags |= ZEND_HAS_STATIC_IN_METHODS;
|
|
}
|
|
ALLOC_HASHTABLE(CG(active_op_array)->static_variables);
|
|
zend_hash_init(CG(active_op_array)->static_variables, 2, NULL, ZVAL_PTR_DTOR, 0);
|
|
}
|
|
zend_hash_update(CG(active_op_array)->static_variables, Z_STR(varname->u.constant), &tmp);
|
|
|
|
if (varname->op_type == IS_CONST) {
|
|
if (Z_TYPE(varname->u.constant) != IS_STRING) {
|
|
convert_to_string(&varname->u.constant);
|
|
}
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = (fetch_type == ZEND_FETCH_LEXICAL) ? ZEND_FETCH_R : ZEND_FETCH_W; /* the default mode must be Write, since fetch_simple_variable() is used to define function arguments */
|
|
opline->result_type = IS_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
SET_NODE(opline->op1, varname);
|
|
//??? if (opline->op1_type == IS_CONST) {
|
|
//??? CALCULATE_LITERAL_HASH(opline->op1.constant);
|
|
//??? }
|
|
SET_UNUSED(opline->op2);
|
|
opline->extended_value = ZEND_FETCH_STATIC;
|
|
GET_NODE(&result, opline->result);
|
|
|
|
if (varname->op_type == IS_CONST) {
|
|
zval_copy_ctor(&varname->u.constant);
|
|
}
|
|
fetch_simple_variable(&lval, varname, 0 TSRMLS_CC); /* Relies on the fact that the default fetch is BP_VAR_W */
|
|
|
|
if (fetch_type == ZEND_FETCH_LEXICAL) {
|
|
znode dummy;
|
|
|
|
zend_do_begin_variable_parse(TSRMLS_C);
|
|
zend_do_assign(&dummy, &lval, &result TSRMLS_CC);
|
|
zend_do_free(&dummy TSRMLS_CC);
|
|
} else {
|
|
zend_do_assign_ref(NULL, &lval, &result TSRMLS_CC);
|
|
}
|
|
CG(active_op_array)->opcodes[CG(active_op_array)->last-1].result_type |= EXT_TYPE_UNUSED;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_fetch_lexical_variable(znode *varname, zend_bool is_ref TSRMLS_DC) /* {{{ */
|
|
{
|
|
znode value;
|
|
|
|
if (Z_STRLEN(varname->u.constant) == sizeof("this") - 1 &&
|
|
memcmp(Z_STRVAL(varname->u.constant), "this", sizeof("this") - 1) == 0) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use $this as lexical variable");
|
|
return;
|
|
}
|
|
|
|
value.op_type = IS_CONST;
|
|
ZVAL_NULL(&value.u.constant);
|
|
Z_TYPE(value.u.constant) |= is_ref ? IS_LEXICAL_REF : IS_LEXICAL_VAR;
|
|
//??? Z_SET_REFCOUNT_P(&value.u.constant, 1);
|
|
//??? Z_UNSET_ISREF_P(&value.u.constant);
|
|
|
|
zend_do_fetch_static_variable(varname, &value, is_ref ? ZEND_FETCH_STATIC : ZEND_FETCH_LEXICAL TSRMLS_CC);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_fetch_global_variable(znode *varname, const znode *static_assignment, int fetch_type TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
znode lval;
|
|
znode result;
|
|
|
|
if (varname->op_type == IS_CONST) {
|
|
if (Z_TYPE(varname->u.constant) != IS_STRING) {
|
|
convert_to_string(&varname->u.constant);
|
|
}
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_FETCH_W; /* the default mode must be Write, since fetch_simple_variable() is used to define function arguments */
|
|
opline->result_type = IS_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
SET_NODE(opline->op1, varname);
|
|
//??? if (opline->op1_type == IS_CONST) {
|
|
//??? CALCULATE_LITERAL_HASH(opline->op1.constant);
|
|
//??? }
|
|
SET_UNUSED(opline->op2);
|
|
opline->extended_value = fetch_type;
|
|
GET_NODE(&result, opline->result);
|
|
|
|
if (varname->op_type == IS_CONST) {
|
|
zval_copy_ctor(&varname->u.constant);
|
|
}
|
|
fetch_simple_variable(&lval, varname, 0 TSRMLS_CC); /* Relies on the fact that the default fetch is BP_VAR_W */
|
|
|
|
zend_do_assign_ref(NULL, &lval, &result TSRMLS_CC);
|
|
CG(active_op_array)->opcodes[CG(active_op_array)->last-1].result_type |= EXT_TYPE_UNUSED;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_cast(znode *result, const znode *expr, int type TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_CAST;
|
|
opline->result_type = IS_TMP_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
SET_NODE(opline->op1, expr);
|
|
SET_UNUSED(opline->op2);
|
|
opline->extended_value = type;
|
|
GET_NODE(result, opline->result);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_include_or_eval(int type, znode *result, const znode *op1 TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_do_extended_fcall_begin(TSRMLS_C);
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_INCLUDE_OR_EVAL;
|
|
opline->result_type = IS_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
SET_NODE(opline->op1, op1);
|
|
SET_UNUSED(opline->op2);
|
|
opline->extended_value = type;
|
|
GET_NODE(result, opline->result);
|
|
}
|
|
zend_do_extended_fcall_end(TSRMLS_C);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_indirect_references(znode *result, const znode *num_references, znode *variable TSRMLS_DC) /* {{{ */
|
|
{
|
|
int i;
|
|
|
|
zend_do_end_variable_parse(variable, BP_VAR_R, 0 TSRMLS_CC);
|
|
for (i=1; i<Z_LVAL(num_references->u.constant); i++) {
|
|
fetch_simple_variable_ex(result, variable, 0, ZEND_FETCH_R TSRMLS_CC);
|
|
*variable = *result;
|
|
}
|
|
zend_do_begin_variable_parse(TSRMLS_C);
|
|
fetch_simple_variable(result, variable, 1 TSRMLS_CC);
|
|
/* there is a chance someone is accessing $this */
|
|
if (CG(active_op_array)->scope && CG(active_op_array)->this_var == -1) {
|
|
zend_string *key = STR_INIT("this", sizeof("this")-1, 0);
|
|
CG(active_op_array)->this_var = lookup_cv(CG(active_op_array), key TSRMLS_CC);
|
|
STR_RELEASE(key);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_unset(const znode *variable TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *last_op;
|
|
|
|
zend_check_writable_variable(variable);
|
|
|
|
if (variable->op_type == IS_CV) {
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_UNSET_VAR;
|
|
SET_NODE(opline->op1, variable);
|
|
SET_UNUSED(opline->op2);
|
|
SET_UNUSED(opline->result);
|
|
opline->extended_value = ZEND_FETCH_LOCAL | ZEND_QUICK_SET;
|
|
} else {
|
|
last_op = &CG(active_op_array)->opcodes[get_next_op_number(CG(active_op_array))-1];
|
|
|
|
switch (last_op->opcode) {
|
|
case ZEND_FETCH_UNSET:
|
|
last_op->opcode = ZEND_UNSET_VAR;
|
|
SET_UNUSED(last_op->result);
|
|
break;
|
|
case ZEND_FETCH_DIM_UNSET:
|
|
last_op->opcode = ZEND_UNSET_DIM;
|
|
SET_UNUSED(last_op->result);
|
|
break;
|
|
case ZEND_FETCH_OBJ_UNSET:
|
|
last_op->opcode = ZEND_UNSET_OBJ;
|
|
SET_UNUSED(last_op->result);
|
|
break;
|
|
|
|
}
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_isset_or_isempty(int type, znode *result, znode *variable TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *last_op;
|
|
|
|
zend_do_end_variable_parse(variable, BP_VAR_IS, 0 TSRMLS_CC);
|
|
|
|
if (zend_is_function_or_method_call(variable)) {
|
|
if (type == ZEND_ISEMPTY) {
|
|
/* empty(func()) can be transformed to !func() */
|
|
zend_do_unary_op(ZEND_BOOL_NOT, result, variable TSRMLS_CC);
|
|
} else {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use isset() on the result of a function call (you can use \"null !== func()\" instead)");
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
if (variable->op_type == IS_CV) {
|
|
last_op = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
last_op->opcode = ZEND_ISSET_ISEMPTY_VAR;
|
|
SET_NODE(last_op->op1, variable);
|
|
SET_UNUSED(last_op->op2);
|
|
last_op->result.var = get_temporary_variable(CG(active_op_array));
|
|
last_op->extended_value = ZEND_FETCH_LOCAL | ZEND_QUICK_SET;
|
|
} else {
|
|
last_op = &CG(active_op_array)->opcodes[get_next_op_number(CG(active_op_array))-1];
|
|
|
|
switch (last_op->opcode) {
|
|
case ZEND_FETCH_IS:
|
|
last_op->opcode = ZEND_ISSET_ISEMPTY_VAR;
|
|
break;
|
|
case ZEND_FETCH_DIM_IS:
|
|
last_op->opcode = ZEND_ISSET_ISEMPTY_DIM_OBJ;
|
|
break;
|
|
case ZEND_FETCH_OBJ_IS:
|
|
last_op->opcode = ZEND_ISSET_ISEMPTY_PROP_OBJ;
|
|
break;
|
|
}
|
|
}
|
|
last_op->result_type = IS_TMP_VAR;
|
|
last_op->extended_value |= type;
|
|
|
|
GET_NODE(result, last_op->result);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_instanceof(znode *result, const znode *expr, const znode *class_znode, int type TSRMLS_DC) /* {{{ */
|
|
{
|
|
int last_op_number = get_next_op_number(CG(active_op_array));
|
|
zend_op *opline;
|
|
|
|
if (last_op_number > 0) {
|
|
opline = &CG(active_op_array)->opcodes[last_op_number-1];
|
|
if (opline->opcode == ZEND_FETCH_CLASS) {
|
|
opline->extended_value |= ZEND_FETCH_CLASS_NO_AUTOLOAD;
|
|
}
|
|
}
|
|
|
|
if (expr->op_type == IS_CONST) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "instanceof expects an object instance, constant given");
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_INSTANCEOF;
|
|
opline->result_type = IS_TMP_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
SET_NODE(opline->op1, expr);
|
|
|
|
SET_NODE(opline->op2, class_znode);
|
|
|
|
GET_NODE(result, opline->result);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_foreach_begin(znode *foreach_token, znode *open_brackets_token, znode *array, znode *as_token, int variable TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
zend_bool is_variable;
|
|
zend_op dummy_opline;
|
|
|
|
if (variable) {
|
|
if (zend_is_function_or_method_call(array)) {
|
|
is_variable = 0;
|
|
} else {
|
|
is_variable = 1;
|
|
}
|
|
/* save the location of FETCH_W instruction(s) */
|
|
open_brackets_token->u.op.opline_num = get_next_op_number(CG(active_op_array));
|
|
zend_do_end_variable_parse(array, BP_VAR_W, 0 TSRMLS_CC);
|
|
} else {
|
|
is_variable = 0;
|
|
open_brackets_token->u.op.opline_num = get_next_op_number(CG(active_op_array));
|
|
}
|
|
|
|
/* save the location of FE_RESET */
|
|
foreach_token->u.op.opline_num = get_next_op_number(CG(active_op_array));
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
/* Preform array reset */
|
|
opline->opcode = ZEND_FE_RESET;
|
|
opline->result_type = IS_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
SET_NODE(opline->op1, array);
|
|
SET_UNUSED(opline->op2);
|
|
opline->extended_value = is_variable ? ZEND_FE_RESET_VARIABLE : 0;
|
|
|
|
COPY_NODE(dummy_opline.result, opline->result);
|
|
zend_stack_push(&CG(foreach_copy_stack), (void *) &dummy_opline, sizeof(zend_op));
|
|
|
|
/* save the location of FE_FETCH */
|
|
as_token->u.op.opline_num = get_next_op_number(CG(active_op_array));
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_FE_FETCH;
|
|
opline->result_type = IS_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
COPY_NODE(opline->op1, dummy_opline.result);
|
|
opline->extended_value = 0;
|
|
SET_UNUSED(opline->op2);
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_OP_DATA;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
SET_UNUSED(opline->result);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_foreach_cont(znode *foreach_token, const znode *open_brackets_token, const znode *as_token, znode *value, znode *key TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
znode dummy, value_node;
|
|
zend_bool assign_by_ref=0;
|
|
|
|
opline = &CG(active_op_array)->opcodes[as_token->u.op.opline_num];
|
|
if (key->op_type != IS_UNUSED) {
|
|
znode *tmp;
|
|
|
|
/* switch between the key and value... */
|
|
tmp = key;
|
|
key = value;
|
|
value = tmp;
|
|
|
|
/* Mark extended_value in case both key and value are being used */
|
|
opline->extended_value |= ZEND_FE_FETCH_WITH_KEY;
|
|
}
|
|
|
|
if ((key->op_type != IS_UNUSED)) {
|
|
if (key->EA & ZEND_PARSED_REFERENCE_VARIABLE) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Key element cannot be a reference");
|
|
}
|
|
if (key->EA & ZEND_PARSED_LIST_EXPR) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use list as key element");
|
|
}
|
|
}
|
|
|
|
if (value->EA & ZEND_PARSED_REFERENCE_VARIABLE) {
|
|
assign_by_ref = 1;
|
|
|
|
/* Mark extended_value for assign-by-reference */
|
|
opline->extended_value |= ZEND_FE_FETCH_BYREF;
|
|
CG(active_op_array)->opcodes[foreach_token->u.op.opline_num].extended_value |= ZEND_FE_RESET_REFERENCE;
|
|
} else {
|
|
zend_op *fetch = &CG(active_op_array)->opcodes[foreach_token->u.op.opline_num];
|
|
zend_op *end = &CG(active_op_array)->opcodes[open_brackets_token->u.op.opline_num];
|
|
|
|
/* Change "write context" into "read context" */
|
|
fetch->extended_value = 0; /* reset ZEND_FE_RESET_VARIABLE */
|
|
while (fetch != end) {
|
|
--fetch;
|
|
if (fetch->opcode == ZEND_FETCH_DIM_W && fetch->op2_type == IS_UNUSED) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use [] for reading");
|
|
}
|
|
if (fetch->opcode == ZEND_SEPARATE) {
|
|
MAKE_NOP(fetch);
|
|
} else {
|
|
fetch->opcode -= 3; /* FETCH_W -> FETCH_R */
|
|
}
|
|
}
|
|
}
|
|
|
|
GET_NODE(&value_node, opline->result);
|
|
|
|
if (value->EA & ZEND_PARSED_LIST_EXPR) {
|
|
if (!CG(list_llist).head) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use empty list");
|
|
}
|
|
zend_do_list_end(&dummy, &value_node TSRMLS_CC);
|
|
zend_do_free(&dummy TSRMLS_CC);
|
|
} else {
|
|
if (assign_by_ref) {
|
|
zend_do_end_variable_parse(value, BP_VAR_W, 0 TSRMLS_CC);
|
|
/* Mark FE_FETCH as IS_VAR as it holds the data directly as a value */
|
|
zend_do_assign_ref(NULL, value, &value_node TSRMLS_CC);
|
|
} else {
|
|
zend_do_assign(&dummy, value, &value_node TSRMLS_CC);
|
|
zend_do_free(&dummy TSRMLS_CC);
|
|
}
|
|
}
|
|
|
|
if (key->op_type != IS_UNUSED) {
|
|
znode key_node;
|
|
|
|
opline = &CG(active_op_array)->opcodes[as_token->u.op.opline_num+1];
|
|
opline->result_type = IS_TMP_VAR;
|
|
opline->result.opline_num = get_temporary_variable(CG(active_op_array));
|
|
GET_NODE(&key_node, opline->result);
|
|
|
|
zend_do_assign(&dummy, key, &key_node TSRMLS_CC);
|
|
zend_do_free(&dummy TSRMLS_CC);
|
|
}
|
|
|
|
do_begin_loop(TSRMLS_C);
|
|
INC_BPC(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_foreach_end(const znode *foreach_token, const znode *as_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *container_ptr;
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_JMP;
|
|
opline->op1.opline_num = as_token->u.op.opline_num;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
|
|
CG(active_op_array)->opcodes[foreach_token->u.op.opline_num].op2.opline_num = get_next_op_number(CG(active_op_array)); /* FE_RESET */
|
|
CG(active_op_array)->opcodes[as_token->u.op.opline_num].op2.opline_num = get_next_op_number(CG(active_op_array)); /* FE_FETCH */
|
|
|
|
do_end_loop(as_token->u.op.opline_num, 1 TSRMLS_CC);
|
|
|
|
zend_stack_top(&CG(foreach_copy_stack), (void **) &container_ptr);
|
|
generate_free_foreach_copy(container_ptr TSRMLS_CC);
|
|
zend_stack_del_top(&CG(foreach_copy_stack));
|
|
|
|
DEC_BPC(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_declare_begin(TSRMLS_D) /* {{{ */
|
|
{
|
|
zend_stack_push(&CG(declare_stack), &CG(declarables), sizeof(zend_declarables));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_declare_stmt(znode *var, znode *val TSRMLS_DC) /* {{{ */
|
|
{
|
|
if (!zend_binary_strcasecmp(Z_STRVAL(var->u.constant), Z_STRLEN(var->u.constant), "ticks", sizeof("ticks")-1)) {
|
|
convert_to_long(&val->u.constant);
|
|
CG(declarables).ticks = val->u.constant;
|
|
} else if (!zend_binary_strcasecmp(Z_STRVAL(var->u.constant), Z_STRLEN(var->u.constant), "encoding", sizeof("encoding")-1)) {
|
|
if ((Z_TYPE(val->u.constant) & IS_CONSTANT_TYPE_MASK) == IS_CONSTANT) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use constants as encoding");
|
|
}
|
|
|
|
/*
|
|
* Check that the pragma comes before any opcodes. If the compilation
|
|
* got as far as this, the previous portion of the script must have been
|
|
* parseable according to the .ini script_encoding setting. We still
|
|
* want to tell them to put declare() at the top.
|
|
*/
|
|
{
|
|
int num = CG(active_op_array)->last;
|
|
/* ignore ZEND_EXT_STMT and ZEND_TICKS */
|
|
while (num > 0 &&
|
|
(CG(active_op_array)->opcodes[num-1].opcode == ZEND_EXT_STMT ||
|
|
CG(active_op_array)->opcodes[num-1].opcode == ZEND_TICKS)) {
|
|
--num;
|
|
}
|
|
|
|
if (num > 0) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Encoding declaration pragma must be the very first statement in the script");
|
|
}
|
|
}
|
|
|
|
if (CG(multibyte)) {
|
|
const zend_encoding *new_encoding, *old_encoding;
|
|
zend_encoding_filter old_input_filter;
|
|
|
|
CG(encoding_declared) = 1;
|
|
|
|
convert_to_string(&val->u.constant);
|
|
new_encoding = zend_multibyte_fetch_encoding(Z_STRVAL(val->u.constant) TSRMLS_CC);
|
|
if (!new_encoding) {
|
|
zend_error(E_COMPILE_WARNING, "Unsupported encoding [%s]", Z_STRVAL(val->u.constant));
|
|
} else {
|
|
old_input_filter = LANG_SCNG(input_filter);
|
|
old_encoding = LANG_SCNG(script_encoding);
|
|
zend_multibyte_set_filter(new_encoding TSRMLS_CC);
|
|
|
|
/* need to re-scan if input filter changed */
|
|
if (old_input_filter != LANG_SCNG(input_filter) ||
|
|
(old_input_filter && new_encoding != old_encoding)) {
|
|
zend_multibyte_yyinput_again(old_input_filter, old_encoding TSRMLS_CC);
|
|
}
|
|
}
|
|
} else {
|
|
zend_error(E_COMPILE_WARNING, "declare(encoding=...) ignored because Zend multibyte feature is turned off by settings");
|
|
}
|
|
zval_dtor(&val->u.constant);
|
|
} else {
|
|
zend_error(E_COMPILE_WARNING, "Unsupported declare '%s'", Z_STRVAL(var->u.constant));
|
|
zval_dtor(&val->u.constant);
|
|
}
|
|
zval_dtor(&var->u.constant);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_declare_end(const znode *declare_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_declarables *declarables;
|
|
|
|
zend_stack_top(&CG(declare_stack), (void **) &declarables);
|
|
/* We should restore if there was more than (current - start) - (ticks?1:0) opcodes */
|
|
if ((get_next_op_number(CG(active_op_array)) - declare_token->u.op.opline_num) - ((Z_LVAL(CG(declarables).ticks))?1:0)) {
|
|
CG(declarables) = *declarables;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_exit(znode *result, const znode *message TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_EXIT;
|
|
SET_NODE(opline->op1, message);
|
|
SET_UNUSED(opline->op2);
|
|
|
|
result->op_type = IS_CONST;
|
|
Z_TYPE(result->u.constant) = IS_BOOL;
|
|
Z_LVAL(result->u.constant) = 1;
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_begin_silence(znode *strudel_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_BEGIN_SILENCE;
|
|
opline->result_type = IS_TMP_VAR;
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
GET_NODE(strudel_token, opline->result);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_end_silence(const znode *strudel_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_END_SILENCE;
|
|
SET_NODE(opline->op1, strudel_token);
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_jmp_set(const znode *value, znode *jmp_token, znode *colon_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
int op_number = get_next_op_number(CG(active_op_array));
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
if (value->op_type == IS_VAR || value->op_type == IS_CV) {
|
|
opline->opcode = ZEND_JMP_SET_VAR;
|
|
opline->result_type = IS_VAR;
|
|
} else {
|
|
opline->opcode = ZEND_JMP_SET;
|
|
opline->result_type = IS_TMP_VAR;
|
|
}
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
SET_NODE(opline->op1, value);
|
|
SET_UNUSED(opline->op2);
|
|
|
|
GET_NODE(colon_token, opline->result);
|
|
|
|
jmp_token->u.op.opline_num = op_number;
|
|
|
|
INC_BPC(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_jmp_set_else(znode *result, const znode *false_value, const znode *jmp_token, const znode *colon_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
SET_NODE(opline->result, colon_token);
|
|
if (colon_token->op_type == IS_TMP_VAR) {
|
|
if (false_value->op_type == IS_VAR || false_value->op_type == IS_CV) {
|
|
CG(active_op_array)->opcodes[jmp_token->u.op.opline_num].opcode = ZEND_JMP_SET_VAR;
|
|
CG(active_op_array)->opcodes[jmp_token->u.op.opline_num].result_type = IS_VAR;
|
|
opline->opcode = ZEND_QM_ASSIGN_VAR;
|
|
opline->result_type = IS_VAR;
|
|
} else {
|
|
opline->opcode = ZEND_QM_ASSIGN;
|
|
}
|
|
} else {
|
|
opline->opcode = ZEND_QM_ASSIGN_VAR;
|
|
}
|
|
opline->extended_value = 0;
|
|
SET_NODE(opline->op1, false_value);
|
|
SET_UNUSED(opline->op2);
|
|
|
|
GET_NODE(result, opline->result);
|
|
|
|
CG(active_op_array)->opcodes[jmp_token->u.op.opline_num].op2.opline_num = get_next_op_number(CG(active_op_array));
|
|
|
|
DEC_BPC(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_begin_qm_op(const znode *cond, znode *qm_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
int jmpz_op_number = get_next_op_number(CG(active_op_array));
|
|
zend_op *opline;
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_JMPZ;
|
|
SET_NODE(opline->op1, cond);
|
|
SET_UNUSED(opline->op2);
|
|
opline->op2.opline_num = jmpz_op_number;
|
|
GET_NODE(qm_token, opline->op2);
|
|
|
|
INC_BPC(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_qm_true(const znode *true_value, znode *qm_token, znode *colon_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
CG(active_op_array)->opcodes[qm_token->u.op.opline_num].op2.opline_num = get_next_op_number(CG(active_op_array))+1; /* jmp over the ZEND_JMP */
|
|
|
|
if (true_value->op_type == IS_VAR || true_value->op_type == IS_CV) {
|
|
opline->opcode = ZEND_QM_ASSIGN_VAR;
|
|
opline->result_type = IS_VAR;
|
|
} else {
|
|
opline->opcode = ZEND_QM_ASSIGN;
|
|
opline->result_type = IS_TMP_VAR;
|
|
}
|
|
opline->result.var = get_temporary_variable(CG(active_op_array));
|
|
SET_NODE(opline->op1, true_value);
|
|
SET_UNUSED(opline->op2);
|
|
|
|
GET_NODE(qm_token, opline->result);
|
|
colon_token->u.op.opline_num = get_next_op_number(CG(active_op_array));
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_JMP;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_qm_false(znode *result, const znode *false_value, const znode *qm_token, const znode *colon_token TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
SET_NODE(opline->result, qm_token);
|
|
if (qm_token->op_type == IS_TMP_VAR) {
|
|
if (false_value->op_type == IS_VAR || false_value->op_type == IS_CV) {
|
|
CG(active_op_array)->opcodes[colon_token->u.op.opline_num - 1].opcode = ZEND_QM_ASSIGN_VAR;
|
|
CG(active_op_array)->opcodes[colon_token->u.op.opline_num - 1].result_type = IS_VAR;
|
|
opline->opcode = ZEND_QM_ASSIGN_VAR;
|
|
opline->result_type = IS_VAR;
|
|
} else {
|
|
opline->opcode = ZEND_QM_ASSIGN;
|
|
}
|
|
} else {
|
|
opline->opcode = ZEND_QM_ASSIGN_VAR;
|
|
}
|
|
SET_NODE(opline->op1, false_value);
|
|
SET_UNUSED(opline->op2);
|
|
|
|
CG(active_op_array)->opcodes[colon_token->u.op.opline_num].op1.opline_num = get_next_op_number(CG(active_op_array));
|
|
|
|
GET_NODE(result, opline->result);
|
|
|
|
DEC_BPC(CG(active_op_array));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_extended_info(TSRMLS_D) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
|
|
if (!(CG(compiler_options) & ZEND_COMPILE_EXTENDED_INFO)) {
|
|
return;
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_EXT_STMT;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_extended_fcall_begin(TSRMLS_D) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
|
|
if (!(CG(compiler_options) & ZEND_COMPILE_EXTENDED_INFO)) {
|
|
return;
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_EXT_FCALL_BEGIN;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_extended_fcall_end(TSRMLS_D) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
|
|
if (!(CG(compiler_options) & ZEND_COMPILE_EXTENDED_INFO)) {
|
|
return;
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_EXT_FCALL_END;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_ticks(TSRMLS_D) /* {{{ */
|
|
{
|
|
zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
|
|
opline->opcode = ZEND_TICKS;
|
|
SET_UNUSED(opline->op1);
|
|
SET_UNUSED(opline->op2);
|
|
opline->extended_value = Z_LVAL(CG(declarables).ticks);
|
|
}
|
|
/* }}} */
|
|
|
|
zend_bool zend_is_auto_global(zend_string *name TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_auto_global *auto_global;
|
|
|
|
if ((auto_global = zend_hash_find_ptr(CG(auto_globals), name)) != NULL) {
|
|
if (auto_global->armed) {
|
|
auto_global->armed = auto_global->auto_global_callback(auto_global->name TSRMLS_CC);
|
|
}
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
/* }}} */
|
|
|
|
int zend_register_auto_global(zend_string *name, zend_bool jit, zend_auto_global_callback auto_global_callback TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_auto_global auto_global;
|
|
|
|
auto_global.name = zend_new_interned_string(name TSRMLS_CC);
|
|
auto_global.auto_global_callback = auto_global_callback;
|
|
auto_global.jit = jit;
|
|
|
|
return zend_hash_add_mem(CG(auto_globals), name, &auto_global, sizeof(zend_auto_global)) != NULL ? SUCCESS : FAILURE;
|
|
}
|
|
/* }}} */
|
|
|
|
static int zend_auto_global_init(zval *zv TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_auto_global *auto_global = Z_PTR_P(zv);
|
|
|
|
if (auto_global->jit) {
|
|
auto_global->armed = 1;
|
|
} else if (auto_global->auto_global_callback) {
|
|
auto_global->armed = auto_global->auto_global_callback(auto_global->name TSRMLS_CC);
|
|
} else {
|
|
auto_global->armed = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API void zend_activate_auto_globals(TSRMLS_D) /* {{{ */
|
|
{
|
|
zend_hash_apply(CG(auto_globals), (apply_func_t) zend_auto_global_init TSRMLS_CC);
|
|
}
|
|
/* }}} */
|
|
|
|
int zendlex(znode *zendlval TSRMLS_DC) /* {{{ */
|
|
{
|
|
int retval;
|
|
|
|
if (CG(increment_lineno)) {
|
|
CG(zend_lineno)++;
|
|
CG(increment_lineno) = 0;
|
|
}
|
|
|
|
again:
|
|
Z_TYPE(zendlval->u.constant) = IS_LONG;
|
|
retval = lex_scan(&zendlval->u.constant TSRMLS_CC);
|
|
switch (retval) {
|
|
case T_COMMENT:
|
|
case T_DOC_COMMENT:
|
|
case T_OPEN_TAG:
|
|
case T_WHITESPACE:
|
|
goto again;
|
|
|
|
case T_CLOSE_TAG:
|
|
if (LANG_SCNG(yy_text)[LANG_SCNG(yy_leng)-1] != '>') {
|
|
CG(increment_lineno) = 1;
|
|
}
|
|
if (CG(has_bracketed_namespaces) && !CG(in_namespace)) {
|
|
goto again;
|
|
}
|
|
retval = ';'; /* implicit ; */
|
|
break;
|
|
case T_OPEN_TAG_WITH_ECHO:
|
|
retval = T_ECHO;
|
|
break;
|
|
}
|
|
|
|
//??? INIT_PZVAL(&zendlval->u.constant);
|
|
zendlval->op_type = IS_CONST;
|
|
return retval;
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API void zend_initialize_class_data(zend_class_entry *ce, zend_bool nullify_handlers TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_bool persistent_hashes = (ce->type == ZEND_INTERNAL_CLASS) ? 1 : 0;
|
|
dtor_func_t zval_ptr_dtor_func = ((persistent_hashes) ? ZVAL_INTERNAL_PTR_DTOR : ZVAL_PTR_DTOR);
|
|
|
|
ce->refcount = 1;
|
|
ce->ce_flags = 0;
|
|
|
|
ce->default_properties_table = NULL;
|
|
ce->default_static_members_table = NULL;
|
|
zend_hash_init_ex(&ce->properties_info, 0, NULL, (persistent_hashes ? zend_destroy_property_info_internal : zend_destroy_property_info), persistent_hashes, 0);
|
|
zend_hash_init_ex(&ce->constants_table, 0, NULL, zval_ptr_dtor_func, persistent_hashes, 0);
|
|
zend_hash_init_ex(&ce->function_table, 0, NULL, ZEND_FUNCTION_DTOR, persistent_hashes, 0);
|
|
|
|
if (ce->type == ZEND_INTERNAL_CLASS) {
|
|
#ifdef ZTS
|
|
int n = zend_hash_num_elements(CG(class_table));
|
|
|
|
if (CG(static_members_table) && n >= CG(last_static_member)) {
|
|
/* Support for run-time declaration: dl() */
|
|
CG(last_static_member) = n+1;
|
|
CG(static_members_table) = realloc(CG(static_members_table), (n+1)*sizeof(zval**));
|
|
CG(static_members_table)[n] = NULL;
|
|
}
|
|
ce->static_members_table = (zval**)(zend_intptr_t)n;
|
|
#else
|
|
ce->static_members_table = NULL;
|
|
#endif
|
|
} else {
|
|
ce->static_members_table = ce->default_static_members_table;
|
|
ce->info.user.doc_comment = NULL;
|
|
}
|
|
|
|
ce->default_properties_count = 0;
|
|
ce->default_static_members_count = 0;
|
|
|
|
if (nullify_handlers) {
|
|
ce->constructor = NULL;
|
|
ce->destructor = NULL;
|
|
ce->clone = NULL;
|
|
ce->__get = NULL;
|
|
ce->__set = NULL;
|
|
ce->__unset = NULL;
|
|
ce->__isset = NULL;
|
|
ce->__call = NULL;
|
|
ce->__callstatic = NULL;
|
|
ce->__tostring = NULL;
|
|
ce->create_object = NULL;
|
|
ce->get_iterator = NULL;
|
|
ce->iterator_funcs.funcs = NULL;
|
|
ce->interface_gets_implemented = NULL;
|
|
ce->get_static_method = NULL;
|
|
ce->parent = NULL;
|
|
ce->num_interfaces = 0;
|
|
ce->interfaces = NULL;
|
|
ce->num_traits = 0;
|
|
ce->traits = NULL;
|
|
ce->trait_aliases = NULL;
|
|
ce->trait_precedences = NULL;
|
|
ce->serialize = NULL;
|
|
ce->unserialize = NULL;
|
|
ce->serialize_func = NULL;
|
|
ce->unserialize_func = NULL;
|
|
if (ce->type == ZEND_INTERNAL_CLASS) {
|
|
ce->info.internal.module = NULL;
|
|
ce->info.internal.builtin_functions = NULL;
|
|
}
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
int zend_get_class_fetch_type(const char *class_name, uint class_name_len) /* {{{ */
|
|
{
|
|
if ((class_name_len == sizeof("self")-1) &&
|
|
!strncasecmp(class_name, "self", sizeof("self")-1)) {
|
|
return ZEND_FETCH_CLASS_SELF;
|
|
} else if ((class_name_len == sizeof("parent")-1) &&
|
|
!strncasecmp(class_name, "parent", sizeof("parent")-1)) {
|
|
return ZEND_FETCH_CLASS_PARENT;
|
|
} else if ((class_name_len == sizeof("static")-1) &&
|
|
!strncasecmp(class_name, "static", sizeof("static")-1)) {
|
|
return ZEND_FETCH_CLASS_STATIC;
|
|
} else {
|
|
return ZEND_FETCH_CLASS_DEFAULT;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
ZEND_API zend_string *zend_get_compiled_variable_name(const zend_op_array *op_array, zend_uint var) /* {{{ */
|
|
{
|
|
return op_array->vars[var];
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_build_namespace_name(znode *result, znode *prefix, znode *name TSRMLS_DC) /* {{{ */
|
|
{
|
|
if (prefix) {
|
|
*result = *prefix;
|
|
if (Z_TYPE(result->u.constant) == IS_STRING &&
|
|
Z_STRLEN(result->u.constant) == 0) {
|
|
/* namespace\ */
|
|
if (Z_TYPE(CG(current_namespace)) != IS_UNDEF) {
|
|
znode tmp;
|
|
|
|
zval_dtor(&result->u.constant);
|
|
tmp.op_type = IS_CONST;
|
|
ZVAL_DUP(&tmp.u.constant, &CG(current_namespace));
|
|
zend_do_build_namespace_name(result, NULL, &tmp TSRMLS_CC);
|
|
}
|
|
}
|
|
} else {
|
|
result->op_type = IS_CONST;
|
|
//??? Z_TYPE(result->u.constant) = IS_STRING;
|
|
//??? Z_STRVAL(result->u.constant) = NULL;
|
|
//??? Z_STRLEN(result->u.constant) = 0;
|
|
ZVAL_UNDEF(&result->u.constant);
|
|
}
|
|
/* prefix = result */
|
|
zend_do_build_full_name(NULL, result, name, 0 TSRMLS_CC);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_begin_namespace(const znode *name, zend_bool with_bracket TSRMLS_DC) /* {{{ */
|
|
{
|
|
char *lcname;
|
|
|
|
/* handle mixed syntax declaration or nested namespaces */
|
|
if (!CG(has_bracketed_namespaces)) {
|
|
if (Z_TYPE(CG(current_namespace)) != IS_UNDEF) {
|
|
/* previous namespace declarations were unbracketed */
|
|
if (with_bracket) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot mix bracketed namespace declarations with unbracketed namespace declarations");
|
|
}
|
|
}
|
|
} else {
|
|
/* previous namespace declarations were bracketed */
|
|
if (!with_bracket) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot mix bracketed namespace declarations with unbracketed namespace declarations");
|
|
} else if (Z_TYPE(CG(current_namespace)) != IS_UNDEF || CG(in_namespace)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Namespace declarations cannot be nested");
|
|
}
|
|
}
|
|
|
|
if (((!with_bracket && Z_TYPE(CG(current_namespace)) == IS_UNDEF) || (with_bracket && !CG(has_bracketed_namespaces))) && CG(active_op_array)->last > 0) {
|
|
/* ignore ZEND_EXT_STMT and ZEND_TICKS */
|
|
int num = CG(active_op_array)->last;
|
|
while (num > 0 &&
|
|
(CG(active_op_array)->opcodes[num-1].opcode == ZEND_EXT_STMT ||
|
|
CG(active_op_array)->opcodes[num-1].opcode == ZEND_TICKS)) {
|
|
--num;
|
|
}
|
|
if (num > 0) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Namespace declaration statement has to be the very first statement in the script");
|
|
}
|
|
}
|
|
|
|
CG(in_namespace) = 1;
|
|
if (with_bracket) {
|
|
CG(has_bracketed_namespaces) = 1;
|
|
}
|
|
|
|
if (name) {
|
|
lcname = zend_str_tolower_dup(Z_STRVAL(name->u.constant), Z_STRLEN(name->u.constant));
|
|
if (((Z_STRLEN(name->u.constant) == sizeof("self")-1) &&
|
|
!memcmp(lcname, "self", sizeof("self")-1)) ||
|
|
((Z_STRLEN(name->u.constant) == sizeof("parent")-1) &&
|
|
!memcmp(lcname, "parent", sizeof("parent")-1))) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use '%s' as namespace name", Z_STRVAL(name->u.constant));
|
|
}
|
|
efree(lcname);
|
|
|
|
if (Z_TYPE(CG(current_namespace)) != IS_UNDEF) {
|
|
zval_dtor(&CG(current_namespace));
|
|
}
|
|
ZVAL_COPY_VALUE(&CG(current_namespace), &name->u.constant);
|
|
} else {
|
|
if (Z_TYPE(CG(current_namespace)) != IS_UNDEF) {
|
|
zval_dtor(&CG(current_namespace));
|
|
ZVAL_UNDEF(&CG(current_namespace));
|
|
}
|
|
}
|
|
|
|
if (CG(current_import)) {
|
|
zend_hash_destroy(CG(current_import));
|
|
efree(CG(current_import));
|
|
CG(current_import) = NULL;
|
|
}
|
|
|
|
if (CG(current_import_function)) {
|
|
zend_hash_destroy(CG(current_import_function));
|
|
efree(CG(current_import_function));
|
|
CG(current_import_function) = NULL;
|
|
}
|
|
|
|
if (CG(current_import_const)) {
|
|
zend_hash_destroy(CG(current_import_const));
|
|
efree(CG(current_import_const));
|
|
CG(current_import_const) = NULL;
|
|
}
|
|
|
|
if (CG(doc_comment)) {
|
|
efree(CG(doc_comment));
|
|
CG(doc_comment) = NULL;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_use(znode *ns_name, znode *new_name, int is_global TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_string *lcname;
|
|
zval *name, ns, tmp;
|
|
zend_bool warn = 0;
|
|
zend_class_entry *ce;
|
|
|
|
if (!CG(current_import)) {
|
|
CG(current_import) = emalloc(sizeof(HashTable));
|
|
zend_hash_init(CG(current_import), 0, NULL, ZVAL_PTR_DTOR, 0);
|
|
}
|
|
|
|
ZVAL_ZVAL(&ns, &ns_name->u.constant, 0, 0);
|
|
if (new_name) {
|
|
name = &new_name->u.constant;
|
|
} else {
|
|
const char *p;
|
|
|
|
/* The form "use A\B" is eqivalent to "use A\B as B".
|
|
So we extract the last part of compound name to use as a new_name */
|
|
name = &tmp;
|
|
p = zend_memrchr(Z_STRVAL(ns), '\\', Z_STRLEN(ns));
|
|
if (p) {
|
|
//??? ZVAL_STRING(name, p+1, 1);
|
|
ZVAL_STRING(name, p+1);
|
|
} else {
|
|
ZVAL_ZVAL(name, &ns, 1, 0);
|
|
warn = !is_global && Z_TYPE(CG(current_namespace)) == IS_UNDEF;
|
|
}
|
|
}
|
|
|
|
lcname = STR_ALLOC(Z_STRLEN_P(name), 0);
|
|
zend_str_tolower_copy(lcname->val, Z_STRVAL_P(name), Z_STRLEN_P(name));
|
|
|
|
if (((Z_STRLEN_P(name) == sizeof("self")-1) &&
|
|
!memcmp(lcname->val, "self", sizeof("self")-1)) ||
|
|
((Z_STRLEN_P(name) == sizeof("parent")-1) &&
|
|
!memcmp(lcname->val, "parent", sizeof("parent")-1))) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use %s as %s because '%s' is a special class name", Z_STRVAL(ns), Z_STRVAL_P(name), Z_STRVAL_P(name));
|
|
}
|
|
|
|
if (Z_TYPE(CG(current_namespace)) != IS_UNDEF) {
|
|
/* Prefix import name with current namespace name to avoid conflicts with classes */
|
|
zend_string *c_ns_name = STR_ALLOC(Z_STRLEN(CG(current_namespace)) + 1 + Z_STRLEN_P(name), 0);
|
|
|
|
zend_str_tolower_copy(c_ns_name->val, Z_STRVAL(CG(current_namespace)), Z_STRLEN(CG(current_namespace)));
|
|
c_ns_name->val[Z_STRLEN(CG(current_namespace))] = '\\';
|
|
memcpy(c_ns_name->val+Z_STRLEN(CG(current_namespace))+1, lcname, Z_STRLEN_P(name)+1);
|
|
if (zend_hash_exists(CG(class_table), c_ns_name)) {
|
|
char *tmp2 = zend_str_tolower_dup(Z_STRVAL(ns), Z_STRLEN(ns));
|
|
|
|
if (Z_STRLEN(ns) != Z_STRLEN(CG(current_namespace)) + 1 + Z_STRLEN_P(name) ||
|
|
memcmp(tmp2, c_ns_name->val, Z_STRLEN(ns))) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use %s as %s because the name is already in use", Z_STRVAL(ns), Z_STRVAL_P(name));
|
|
}
|
|
efree(tmp2);
|
|
}
|
|
STR_FREE(c_ns_name);
|
|
} else if ((ce = zend_hash_find_ptr(CG(class_table), lcname)) != NULL &&
|
|
ce->type == ZEND_USER_CLASS &&
|
|
ce->info.user.filename == CG(compiled_filename)) {
|
|
char *c_tmp = zend_str_tolower_dup(Z_STRVAL(ns), Z_STRLEN(ns));
|
|
|
|
if (Z_STRLEN(ns) != Z_STRLEN_P(name) ||
|
|
memcmp(c_tmp, lcname->val, Z_STRLEN(ns))) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use %s as %s because the name is already in use", Z_STRVAL(ns), Z_STRVAL_P(name));
|
|
}
|
|
efree(c_tmp);
|
|
}
|
|
|
|
if (zend_hash_add(CG(current_import), lcname, &ns) == NULL) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot use %s as %s because the name is already in use", Z_STRVAL(ns), Z_STRVAL_P(name));
|
|
}
|
|
if (warn) {
|
|
if (!strcmp(Z_STRVAL_P(name), "strict")) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "You seem to be trying to use a different language...");
|
|
}
|
|
zend_error(E_WARNING, "The use statement with non-compound name '%s' has no effect", Z_STRVAL_P(name));
|
|
}
|
|
efree(lcname);
|
|
zval_dtor(name);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_use_non_class(znode *ns_name, znode *new_name, int is_global, int is_function, zend_bool case_sensitive, HashTable *current_import_sub, HashTable *lookup_table TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_string *lookup_name;
|
|
zval *name, ns, tmp;
|
|
zend_bool warn = 0;
|
|
|
|
ZVAL_ZVAL(&ns, &ns_name->u.constant, 0, 0);
|
|
if (new_name) {
|
|
name = &new_name->u.constant;
|
|
} else {
|
|
const char *p;
|
|
|
|
/* The form "use A\B" is eqivalent to "use A\B as B".
|
|
So we extract the last part of compound name to use as a new_name */
|
|
name = &tmp;
|
|
p = zend_memrchr(Z_STRVAL(ns), '\\', Z_STRLEN(ns));
|
|
if (p) {
|
|
//??? ZVAL_STRING(name, p+1, 1);
|
|
ZVAL_STRING(name, p+1);
|
|
} else {
|
|
ZVAL_ZVAL(name, &ns, 1, 0);
|
|
warn = !is_global && Z_TYPE(CG(current_namespace)) == IS_UNDEF;
|
|
}
|
|
}
|
|
|
|
if (case_sensitive) {
|
|
lookup_name = STR_DUP(Z_STR_P(name), 0);
|
|
} else {
|
|
lookup_name = STR_ALLOC(Z_STRLEN_P(name), 0);
|
|
zend_str_tolower_copy(lookup_name->val, Z_STRVAL_P(name), Z_STRLEN_P(name));
|
|
}
|
|
|
|
if (Z_TYPE(CG(current_namespace)) != IS_UNDEF) {
|
|
/* Prefix import name with current namespace name to avoid conflicts with functions/consts */
|
|
zend_string *c_ns_name = STR_ALLOC(Z_STRLEN(CG(current_namespace)) + 1 + Z_STRLEN_P(name), 0);
|
|
|
|
zend_str_tolower_copy(c_ns_name->val, Z_STRVAL(CG(current_namespace)), Z_STRLEN(CG(current_namespace)));
|
|
c_ns_name->val[Z_STRLEN(CG(current_namespace))] = '\\';
|
|
memcpy(c_ns_name->val+Z_STRLEN(CG(current_namespace))+1, lookup_name, Z_STRLEN_P(name)+1);
|
|
if (zend_hash_exists(lookup_table, c_ns_name)) {
|
|
char *tmp2 = zend_str_tolower_dup(Z_STRVAL(ns), Z_STRLEN(ns));
|
|
|
|
if (Z_STRLEN(ns) != Z_STRLEN(CG(current_namespace)) + 1 + Z_STRLEN_P(name) ||
|
|
memcmp(tmp2, c_ns_name->val, Z_STRLEN(ns))) {
|
|
zend_error(E_COMPILE_ERROR, "Cannot use %s %s as %s because the name is already in use", is_function ? "function" : "const", Z_STRVAL(ns), Z_STRVAL_P(name));
|
|
}
|
|
efree(tmp2);
|
|
}
|
|
STR_FREE(c_ns_name);
|
|
} else if (is_function) {
|
|
zend_function *function;
|
|
|
|
if ((function = zend_hash_find_ptr(lookup_table, lookup_name)) != NULL && function->type == ZEND_USER_FUNCTION && strcmp(function->op_array.filename->val, CG(compiled_filename)->val) == 0) {
|
|
char *c_tmp = zend_str_tolower_dup(Z_STRVAL(ns), Z_STRLEN(ns));
|
|
|
|
if (Z_STRLEN(ns) != Z_STRLEN_P(name) ||
|
|
memcmp(c_tmp, lookup_name->val, Z_STRLEN(ns))) {
|
|
zend_error(E_COMPILE_ERROR, "Cannot use function %s as %s because the name is already in use", Z_STRVAL(ns), Z_STRVAL_P(name));
|
|
}
|
|
efree(c_tmp);
|
|
}
|
|
} else {
|
|
zend_string *filename;
|
|
|
|
if ((filename = zend_hash_find_ptr(lookup_table, lookup_name)) != NULL && strcmp(filename->val, CG(compiled_filename)->val) == 0) {
|
|
char *c_tmp = zend_str_tolower_dup(Z_STRVAL(ns), Z_STRLEN(ns));
|
|
|
|
if (Z_STRLEN(ns) != Z_STRLEN_P(name) ||
|
|
memcmp(c_tmp, lookup_name->val, Z_STRLEN(ns))) {
|
|
zend_error(E_COMPILE_ERROR, "Cannot use const %s as %s because the name is already in use", Z_STRVAL(ns), Z_STRVAL_P(name));
|
|
}
|
|
efree(c_tmp);
|
|
}
|
|
}
|
|
|
|
if (zend_hash_add(current_import_sub, lookup_name, &ns) == NULL) {
|
|
zend_error(E_COMPILE_ERROR, "Cannot use %s %s as %s because the name is already in use", is_function ? "function" : "const", Z_STRVAL(ns), Z_STRVAL_P(name));
|
|
}
|
|
if (warn) {
|
|
zend_error(E_WARNING, "The use %s statement with non-compound name '%s' has no effect", is_function ? "function" : "const", Z_STRVAL_P(name));
|
|
}
|
|
STR_RELEASE(lookup_name);
|
|
zval_dtor(name);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_use_function(znode *ns_name, znode *new_name, int is_global TSRMLS_DC) /* {{{ */
|
|
{
|
|
if (!CG(current_import_function)) {
|
|
CG(current_import_function) = emalloc(sizeof(HashTable));
|
|
zend_hash_init(CG(current_import_function), 0, NULL, ZVAL_PTR_DTOR, 0);
|
|
}
|
|
|
|
zend_do_use_non_class(ns_name, new_name, is_global, 1, 0, CG(current_import_function), CG(function_table) TSRMLS_CC);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_use_const(znode *ns_name, znode *new_name, int is_global TSRMLS_DC) /* {{{ */
|
|
{
|
|
if (!CG(current_import_const)) {
|
|
CG(current_import_const) = emalloc(sizeof(HashTable));
|
|
zend_hash_init(CG(current_import_const), 0, NULL, ZVAL_PTR_DTOR, 0);
|
|
}
|
|
|
|
zend_do_use_non_class(ns_name, new_name, is_global, 0, 1, CG(current_import_const), &CG(const_filenames) TSRMLS_CC);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_declare_constant(znode *name, znode *value TSRMLS_DC) /* {{{ */
|
|
{
|
|
zend_op *opline;
|
|
zval *ns_name;
|
|
|
|
if(Z_TYPE(value->u.constant) == IS_CONSTANT_ARRAY) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Arrays are not allowed as constants");
|
|
}
|
|
|
|
if (zend_get_ct_const(&name->u.constant, 0 TSRMLS_CC)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "Cannot redeclare constant '%s'", Z_STRVAL(name->u.constant));
|
|
}
|
|
|
|
if (Z_TYPE(CG(current_namespace)) != IS_UNDEF) {
|
|
/* Prefix constant name with name of current namespace, lowercased */
|
|
znode tmp;
|
|
|
|
tmp.op_type = IS_CONST;
|
|
ZVAL_STR(&tmp.u.constant, STR_ALLOC(Z_STRLEN(CG(current_namespace)), 0));
|
|
zend_str_tolower_copy(Z_STRVAL(tmp.u.constant), Z_STRVAL(CG(current_namespace)), Z_STRLEN(CG(current_namespace)));
|
|
zend_do_build_namespace_name(&tmp, &tmp, name TSRMLS_CC);
|
|
*name = tmp;
|
|
}
|
|
|
|
/* Constant name must not conflict with import names */
|
|
if (CG(current_import_const) &&
|
|
(ns_name = zend_hash_find(CG(current_import_const), Z_STR(name->u.constant))) != NULL) {
|
|
|
|
char *tmp = estrndup(Z_STRVAL_P(ns_name), Z_STRLEN_P(ns_name));
|
|
|
|
if (Z_STRLEN_P(ns_name) != Z_STRLEN(name->u.constant) ||
|
|
memcmp(tmp, Z_STRVAL(name->u.constant), Z_STRLEN(name->u.constant))) {
|
|
zend_error(E_COMPILE_ERROR, "Cannot declare const %s because the name is already in use", Z_STRVAL(name->u.constant));
|
|
}
|
|
efree(tmp);
|
|
}
|
|
|
|
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
|
|
opline->opcode = ZEND_DECLARE_CONST;
|
|
SET_UNUSED(opline->result);
|
|
SET_NODE(opline->op1, name);
|
|
SET_NODE(opline->op2, value);
|
|
|
|
zend_hash_add_ptr(&CG(const_filenames), Z_STR(name->u.constant), CG(compiled_filename));
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_verify_namespace(TSRMLS_D) /* {{{ */
|
|
{
|
|
if (CG(has_bracketed_namespaces) && !CG(in_namespace)) {
|
|
zend_error_noreturn(E_COMPILE_ERROR, "No code may exist outside of namespace {}");
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_end_namespace(TSRMLS_D) /* {{{ */
|
|
{
|
|
CG(in_namespace) = 0;
|
|
if (Z_TYPE(CG(current_namespace)) != IS_UNDEF) {
|
|
zval_dtor(&CG(current_namespace));
|
|
ZVAL_UNDEF(&CG(current_namespace));
|
|
}
|
|
if (CG(current_import)) {
|
|
zend_hash_destroy(CG(current_import));
|
|
efree(CG(current_import));
|
|
CG(current_import) = NULL;
|
|
}
|
|
if (CG(current_import_function)) {
|
|
zend_hash_destroy(CG(current_import_function));
|
|
efree(CG(current_import_function));
|
|
CG(current_import_function) = NULL;
|
|
}
|
|
if (CG(current_import_const)) {
|
|
zend_hash_destroy(CG(current_import_const));
|
|
efree(CG(current_import_const));
|
|
CG(current_import_const) = NULL;
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_end_compilation(TSRMLS_D) /* {{{ */
|
|
{
|
|
CG(has_bracketed_namespaces) = 0;
|
|
zend_do_end_namespace(TSRMLS_C);
|
|
}
|
|
/* }}} */
|
|
|
|
void zend_do_constant_expression(znode *result, zend_ast *ast TSRMLS_DC) /* {{{ */
|
|
{
|
|
if (ast->kind == ZEND_CONST) {
|
|
ZVAL_COPY_VALUE(&result->u.constant, &ast->u.val);
|
|
//???
|
|
efree(ast);
|
|
} else if (zend_ast_is_ct_constant(ast)) {
|
|
zend_ast_evaluate(&result->u.constant, ast, NULL TSRMLS_CC);
|
|
zend_ast_destroy(ast);
|
|
} else {
|
|
ZVAL_NEW_AST(&result->u.constant, ast);
|
|
}
|
|
}
|
|
/* }}} */
|
|
|
|
/* {{{ zend_dirname
|
|
Returns directory name component of path */
|
|
ZEND_API size_t zend_dirname(char *path, size_t len)
|
|
{
|
|
register char *end = path + len - 1;
|
|
unsigned int len_adjust = 0;
|
|
|
|
#ifdef PHP_WIN32
|
|
/* Note that on Win32 CWD is per drive (heritage from CP/M).
|
|
* This means dirname("c:foo") maps to "c:." or "c:" - which means CWD on C: drive.
|
|
*/
|
|
if ((2 <= len) && isalpha((int)((unsigned char *)path)[0]) && (':' == path[1])) {
|
|
/* Skip over the drive spec (if any) so as not to change */
|
|
path += 2;
|
|
len_adjust += 2;
|
|
if (2 == len) {
|
|
/* Return "c:" on Win32 for dirname("c:").
|
|
* It would be more consistent to return "c:."
|
|
* but that would require making the string *longer*.
|
|
*/
|
|
return len;
|
|
}
|
|
}
|
|
#elif defined(NETWARE)
|
|
/*
|
|
* Find the first occurrence of : from the left
|
|
* move the path pointer to the position just after :
|
|
* increment the len_adjust to the length of path till colon character(inclusive)
|
|
* If there is no character beyond : simple return len
|
|
*/
|
|
char *colonpos = NULL;
|
|
colonpos = strchr(path, ':');
|
|
if (colonpos != NULL) {
|
|
len_adjust = ((colonpos - path) + 1);
|
|
path += len_adjust;
|
|
if (len_adjust == len) {
|
|
return len;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (len == 0) {
|
|
/* Illegal use of this function */
|
|
return 0;
|
|
}
|
|
|
|
/* Strip trailing slashes */
|
|
while (end >= path && IS_SLASH_P(end)) {
|
|
end--;
|
|
}
|
|
if (end < path) {
|
|
/* The path only contained slashes */
|
|
path[0] = DEFAULT_SLASH;
|
|
path[1] = '\0';
|
|
return 1 + len_adjust;
|
|
}
|
|
|
|
/* Strip filename */
|
|
while (end >= path && !IS_SLASH_P(end)) {
|
|
end--;
|
|
}
|
|
if (end < path) {
|
|
/* No slash found, therefore return '.' */
|
|
#ifdef NETWARE
|
|
if (len_adjust == 0) {
|
|
path[0] = '.';
|
|
path[1] = '\0';
|
|
return 1; /* only one character */
|
|
} else {
|
|
path[0] = '\0';
|
|
return len_adjust;
|
|
}
|
|
#else
|
|
path[0] = '.';
|
|
path[1] = '\0';
|
|
return 1 + len_adjust;
|
|
#endif
|
|
}
|
|
|
|
/* Strip slashes which came before the file name */
|
|
while (end >= path && IS_SLASH_P(end)) {
|
|
end--;
|
|
}
|
|
if (end < path) {
|
|
path[0] = DEFAULT_SLASH;
|
|
path[1] = '\0';
|
|
return 1 + len_adjust;
|
|
}
|
|
*(end+1) = '\0';
|
|
|
|
return (size_t)(end + 1 - path) + len_adjust;
|
|
}
|
|
/* }}} */
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* indent-tabs-mode: t
|
|
* End:
|
|
*/
|