mirror of
https://github.com/php/php-src.git
synced 2024-11-28 04:14:26 +08:00
1065 lines
33 KiB
C
1065 lines
33 KiB
C
/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) 1998-2017 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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#ifndef ZEND_COMPILE_H
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#define ZEND_COMPILE_H
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#include "zend.h"
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#include "zend_ast.h"
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#ifdef HAVE_STDARG_H
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# include <stdarg.h>
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#endif
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#include "zend_llist.h"
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#define SET_UNUSED(op) op ## _type = IS_UNUSED
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#define MAKE_NOP(opline) do { \
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(opline)->op1.num = 0; \
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(opline)->op2.num = 0; \
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(opline)->result.num = 0; \
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(opline)->opcode = ZEND_NOP; \
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(opline)->op1_type = IS_UNUSED; \
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(opline)->op2_type = IS_UNUSED; \
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(opline)->result_type = IS_UNUSED; \
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} while (0)
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#define RESET_DOC_COMMENT() do { \
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if (CG(doc_comment)) { \
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zend_string_release(CG(doc_comment)); \
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CG(doc_comment) = NULL; \
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} \
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} while (0)
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typedef struct _zend_op_array zend_op_array;
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typedef struct _zend_op zend_op;
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/* On 64-bit systems less optimal, but more compact VM code leads to better
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* performance. So on 32-bit systems we use absolute addresses for jump
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* targets and constants, but on 64-bit systems realtive 32-bit offsets */
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#if SIZEOF_SIZE_T == 4
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# define ZEND_USE_ABS_JMP_ADDR 1
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# define ZEND_USE_ABS_CONST_ADDR 1
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# define ZEND_EX_USE_LITERALS 0
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# define ZEND_EX_USE_RUN_TIME_CACHE 1
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#else
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# define ZEND_USE_ABS_JMP_ADDR 0
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# define ZEND_USE_ABS_CONST_ADDR 0
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# define ZEND_EX_USE_LITERALS 1
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# define ZEND_EX_USE_RUN_TIME_CACHE 1
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#endif
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typedef union _znode_op {
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uint32_t constant;
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uint32_t var;
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uint32_t num;
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uint32_t opline_num; /* Needs to be signed */
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#if ZEND_USE_ABS_JMP_ADDR
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zend_op *jmp_addr;
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#else
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uint32_t jmp_offset;
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#endif
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#if ZEND_USE_ABS_CONST_ADDR
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zval *zv;
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#endif
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} znode_op;
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typedef struct _znode { /* used only during compilation */
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zend_uchar op_type;
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zend_uchar flag;
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union {
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znode_op op;
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zval constant; /* replaced by literal/zv */
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} u;
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} znode;
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/* Temporarily defined here, to avoid header ordering issues */
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typedef struct _zend_ast_znode {
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zend_ast_kind kind;
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zend_ast_attr attr;
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uint32_t lineno;
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znode node;
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} zend_ast_znode;
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ZEND_API zend_ast *zend_ast_create_znode(znode *node);
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static zend_always_inline znode *zend_ast_get_znode(zend_ast *ast) {
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return &((zend_ast_znode *) ast)->node;
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}
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typedef struct _zend_declarables {
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zend_long ticks;
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} zend_declarables;
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/* Compilation context that is different for each file, but shared between op arrays. */
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typedef struct _zend_file_context {
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zend_declarables declarables;
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znode implementing_class;
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zend_string *current_namespace;
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zend_bool in_namespace;
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zend_bool has_bracketed_namespaces;
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HashTable *imports;
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HashTable *imports_function;
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HashTable *imports_const;
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HashTable seen_symbols;
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} zend_file_context;
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typedef union _zend_parser_stack_elem {
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zend_ast *ast;
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zend_string *str;
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zend_ulong num;
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} zend_parser_stack_elem;
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void zend_compile_top_stmt(zend_ast *ast);
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void zend_compile_stmt(zend_ast *ast);
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void zend_compile_expr(znode *node, zend_ast *ast);
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void zend_compile_var(znode *node, zend_ast *ast, uint32_t type);
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void zend_eval_const_expr(zend_ast **ast_ptr);
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void zend_const_expr_to_zval(zval *result, zend_ast *ast);
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typedef int (*user_opcode_handler_t) (zend_execute_data *execute_data);
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struct _zend_op {
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const void *handler;
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znode_op op1;
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znode_op op2;
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znode_op result;
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uint32_t extended_value;
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uint32_t lineno;
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zend_uchar opcode;
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zend_uchar op1_type;
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zend_uchar op2_type;
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zend_uchar result_type;
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};
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typedef struct _zend_brk_cont_element {
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int start;
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int cont;
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int brk;
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int parent;
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} zend_brk_cont_element;
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typedef struct _zend_label {
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int brk_cont;
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uint32_t opline_num;
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} zend_label;
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typedef struct _zend_try_catch_element {
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uint32_t try_op;
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uint32_t catch_op; /* ketchup! */
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uint32_t finally_op;
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uint32_t finally_end;
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} zend_try_catch_element;
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#define ZEND_LIVE_TMPVAR 0
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#define ZEND_LIVE_LOOP 1
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#define ZEND_LIVE_SILENCE 2
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#define ZEND_LIVE_ROPE 3
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#define ZEND_LIVE_MASK 3
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typedef struct _zend_live_range {
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uint32_t var; /* low bits are used for variable type (ZEND_LIVE_* macros) */
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uint32_t start;
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uint32_t end;
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} zend_live_range;
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/* Compilation context that is different for each op array. */
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typedef struct _zend_oparray_context {
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uint32_t opcodes_size;
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int vars_size;
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int literals_size;
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int backpatch_count;
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uint32_t fast_call_var;
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uint32_t try_catch_offset;
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int current_brk_cont;
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int last_brk_cont;
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zend_brk_cont_element *brk_cont_array;
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HashTable *labels;
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} zend_oparray_context;
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/*
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* Function and method flags
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*
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* Free flags:
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* 0x10
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* 0x20
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* 0x8000
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* 0x2000000
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*/
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/* method flags (types) */
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#define ZEND_ACC_STATIC 0x01
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#define ZEND_ACC_ABSTRACT 0x02
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#define ZEND_ACC_FINAL 0x04
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#define ZEND_ACC_IMPLEMENTED_ABSTRACT 0x08
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/* method flags (visibility) */
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/* The order of those must be kept - public < protected < private */
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#define ZEND_ACC_PUBLIC 0x100
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#define ZEND_ACC_PROTECTED 0x200
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#define ZEND_ACC_PRIVATE 0x400
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#define ZEND_ACC_PPP_MASK (ZEND_ACC_PUBLIC | ZEND_ACC_PROTECTED | ZEND_ACC_PRIVATE)
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#define ZEND_ACC_CHANGED 0x800
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#define ZEND_ACC_IMPLICIT_PUBLIC 0x1000
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/* method flags (special method detection) */
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#define ZEND_ACC_CTOR 0x2000
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#define ZEND_ACC_DTOR 0x4000
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/* method flag used by Closure::__invoke() */
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#define ZEND_ACC_USER_ARG_INFO 0x80
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/* method flag (bc only), any method that has this flag can be used statically and non statically. */
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#define ZEND_ACC_ALLOW_STATIC 0x10000
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/* shadow of parent's private method/property */
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#define ZEND_ACC_SHADOW 0x20000
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/* deprecation flag */
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#define ZEND_ACC_DEPRECATED 0x40000
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#define ZEND_ACC_CLOSURE 0x100000
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#define ZEND_ACC_FAKE_CLOSURE 0x40
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#define ZEND_ACC_GENERATOR 0x800000
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#define ZEND_ACC_NO_RT_ARENA 0x80000
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/* call through user function trampoline. e.g. __call, __callstatic */
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#define ZEND_ACC_CALL_VIA_TRAMPOLINE 0x200000
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/* call through internal function handler. e.g. Closure::invoke() */
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#define ZEND_ACC_CALL_VIA_HANDLER ZEND_ACC_CALL_VIA_TRAMPOLINE
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/* disable inline caching */
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#define ZEND_ACC_NEVER_CACHE 0x400000
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#define ZEND_ACC_VARIADIC 0x1000000
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#define ZEND_ACC_RETURN_REFERENCE 0x4000000
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#define ZEND_ACC_DONE_PASS_TWO 0x8000000
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/* class has magic methods __get/__set/__unset/__isset that use guards */
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#define ZEND_ACC_USE_GUARDS 0x1000000
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/* function has typed arguments */
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#define ZEND_ACC_HAS_TYPE_HINTS 0x10000000
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/* op_array has finally blocks */
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#define ZEND_ACC_HAS_FINALLY_BLOCK 0x20000000
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/* internal function is allocated at arena */
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#define ZEND_ACC_ARENA_ALLOCATED 0x20000000
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/* Function has a return type (or class has such non-private function) */
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#define ZEND_ACC_HAS_RETURN_TYPE 0x40000000
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/* op_array uses strict mode types */
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#define ZEND_ACC_STRICT_TYPES 0x80000000
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/*
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* Class flags
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*
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* Classes also use the ZEND_ACC_FINAL (0x04) flag, otherwise there is no overlap.
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*/
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/* class flags (types) */
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/* ZEND_ACC_IMPLICIT_ABSTRACT_CLASS is used for abstract classes (since it is set by any abstract method even interfaces MAY have it set, too). */
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/* ZEND_ACC_EXPLICIT_ABSTRACT_CLASS denotes that a class was explicitly defined as abstract by using the keyword. */
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#define ZEND_ACC_IMPLICIT_ABSTRACT_CLASS 0x10
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#define ZEND_ACC_EXPLICIT_ABSTRACT_CLASS 0x20
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#define ZEND_ACC_INTERFACE 0x40
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#define ZEND_ACC_TRAIT 0x80
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#define ZEND_ACC_ANON_CLASS 0x100
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#define ZEND_ACC_ANON_BOUND 0x200
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#define ZEND_ACC_INHERITED 0x400
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/* class implement interface(s) flag */
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#define ZEND_ACC_IMPLEMENT_INTERFACES 0x80000
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#define ZEND_ACC_IMPLEMENT_TRAITS 0x400000
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/* class constants updated */
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#define ZEND_ACC_CONSTANTS_UPDATED 0x100000
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/* user class has methods with static variables */
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#define ZEND_HAS_STATIC_IN_METHODS 0x800000
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char *zend_visibility_string(uint32_t fn_flags);
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typedef struct _zend_property_info {
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uint32_t offset; /* property offset for object properties or
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property index for static properties */
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uint32_t flags;
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zend_string *name;
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zend_string *doc_comment;
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zend_class_entry *ce;
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} zend_property_info;
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#define OBJ_PROP(obj, offset) \
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((zval*)((char*)(obj) + offset))
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#define OBJ_PROP_NUM(obj, num) \
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(&(obj)->properties_table[(num)])
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#define OBJ_PROP_TO_OFFSET(num) \
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((uint32_t)(zend_uintptr_t)OBJ_PROP_NUM(((zend_object*)NULL), num))
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#define OBJ_PROP_TO_NUM(offset) \
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((offset - OBJ_PROP_TO_OFFSET(0)) / sizeof(zval))
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typedef struct _zend_class_constant {
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zval value; /* access flags are stored in reserved: zval.u2.access_flags */
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zend_string *doc_comment;
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zend_class_entry *ce;
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} zend_class_constant;
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/* arg_info for internal functions */
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typedef struct _zend_internal_arg_info {
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const char *name;
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zend_type type;
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zend_uchar pass_by_reference;
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zend_bool is_variadic;
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} zend_internal_arg_info;
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/* arg_info for user functions */
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typedef struct _zend_arg_info {
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zend_string *name;
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zend_type type;
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zend_uchar pass_by_reference;
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zend_bool is_variadic;
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} zend_arg_info;
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/* the following structure repeats the layout of zend_internal_arg_info,
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* but its fields have different meaning. It's used as the first element of
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* arg_info array to define properties of internal functions.
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* It's also used for the return type.
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*/
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typedef struct _zend_internal_function_info {
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zend_uintptr_t required_num_args;
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zend_type type;
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zend_bool return_reference;
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zend_bool _is_variadic;
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} zend_internal_function_info;
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struct _zend_op_array {
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/* Common elements */
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zend_uchar type;
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zend_uchar arg_flags[3]; /* bitset of arg_info.pass_by_reference */
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uint32_t fn_flags;
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zend_string *function_name;
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zend_class_entry *scope;
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zend_function *prototype;
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uint32_t num_args;
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uint32_t required_num_args;
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zend_arg_info *arg_info;
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/* END of common elements */
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uint32_t *refcount;
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uint32_t last;
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zend_op *opcodes;
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int last_var;
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uint32_t T;
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zend_string **vars;
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int last_live_range;
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int last_try_catch;
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zend_live_range *live_range;
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zend_try_catch_element *try_catch_array;
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/* static variables support */
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HashTable *static_variables;
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zend_string *filename;
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uint32_t line_start;
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uint32_t line_end;
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zend_string *doc_comment;
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uint32_t early_binding; /* the linked list of delayed declarations */
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int last_literal;
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zval *literals;
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int cache_size;
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void **run_time_cache;
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void *reserved[ZEND_MAX_RESERVED_RESOURCES];
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};
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#define ZEND_RETURN_VALUE 0
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#define ZEND_RETURN_REFERENCE 1
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/* zend_internal_function_handler */
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typedef void (*zif_handler)(INTERNAL_FUNCTION_PARAMETERS);
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typedef struct _zend_internal_function {
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/* Common elements */
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zend_uchar type;
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zend_uchar arg_flags[3]; /* bitset of arg_info.pass_by_reference */
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uint32_t fn_flags;
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zend_string* function_name;
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zend_class_entry *scope;
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zend_function *prototype;
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uint32_t num_args;
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uint32_t required_num_args;
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zend_internal_arg_info *arg_info;
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/* END of common elements */
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zif_handler handler;
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struct _zend_module_entry *module;
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void *reserved[ZEND_MAX_RESERVED_RESOURCES];
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} zend_internal_function;
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#define ZEND_FN_SCOPE_NAME(function) ((function) && (function)->common.scope ? ZSTR_VAL((function)->common.scope->name) : "")
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union _zend_function {
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zend_uchar type; /* MUST be the first element of this struct! */
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uint32_t quick_arg_flags;
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struct {
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zend_uchar type; /* never used */
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zend_uchar arg_flags[3]; /* bitset of arg_info.pass_by_reference */
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uint32_t fn_flags;
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zend_string *function_name;
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zend_class_entry *scope;
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union _zend_function *prototype;
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uint32_t num_args;
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uint32_t required_num_args;
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zend_arg_info *arg_info;
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} common;
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zend_op_array op_array;
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zend_internal_function internal_function;
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};
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typedef enum _zend_call_kind {
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ZEND_CALL_NESTED_FUNCTION, /* stackless VM call to function */
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ZEND_CALL_NESTED_CODE, /* stackless VM call to include/require/eval */
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ZEND_CALL_TOP_FUNCTION, /* direct VM call to function from external C code */
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ZEND_CALL_TOP_CODE /* direct VM call to "main" code from external C code */
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} zend_call_kind;
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|
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struct _zend_execute_data {
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const zend_op *opline; /* executed opline */
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zend_execute_data *call; /* current call */
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zval *return_value;
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zend_function *func; /* executed function */
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zval This; /* this + call_info + num_args */
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zend_execute_data *prev_execute_data;
|
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zend_array *symbol_table;
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#if ZEND_EX_USE_RUN_TIME_CACHE
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void **run_time_cache; /* cache op_array->run_time_cache */
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#endif
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#if ZEND_EX_USE_LITERALS
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zval *literals; /* cache op_array->literals */
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#endif
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};
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#define ZEND_CALL_FUNCTION (0 << 0)
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#define ZEND_CALL_CODE (1 << 0)
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#define ZEND_CALL_NESTED (0 << 1)
|
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#define ZEND_CALL_TOP (1 << 1)
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#define ZEND_CALL_FREE_EXTRA_ARGS (1 << 2) /* equal to IS_TYPE_REFCOUNTED */
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#define ZEND_CALL_CTOR (1 << 3)
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#define ZEND_CALL_HAS_SYMBOL_TABLE (1 << 4)
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#define ZEND_CALL_CLOSURE (1 << 5)
|
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#define ZEND_CALL_RELEASE_THIS (1 << 6)
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#define ZEND_CALL_ALLOCATED (1 << 7)
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#define ZEND_CALL_GENERATOR (1 << 8)
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|
#define ZEND_CALL_DYNAMIC (1 << 9)
|
|
#define ZEND_CALL_FAKE_CLOSURE (1 << 10)
|
|
|
|
#define ZEND_CALL_INFO_SHIFT 16
|
|
|
|
#define ZEND_CALL_INFO(call) \
|
|
(Z_TYPE_INFO((call)->This) >> ZEND_CALL_INFO_SHIFT)
|
|
|
|
#define ZEND_CALL_KIND_EX(call_info) \
|
|
(call_info & (ZEND_CALL_CODE | ZEND_CALL_TOP))
|
|
|
|
#define ZEND_CALL_KIND(call) \
|
|
ZEND_CALL_KIND_EX(ZEND_CALL_INFO(call))
|
|
|
|
#define ZEND_SET_CALL_INFO(call, object, info) do { \
|
|
Z_TYPE_INFO((call)->This) = ((object) ? IS_OBJECT_EX : IS_UNDEF) | ((info) << ZEND_CALL_INFO_SHIFT); \
|
|
} while (0)
|
|
|
|
#define ZEND_ADD_CALL_FLAG_EX(call_info, flag) do { \
|
|
call_info |= ((flag) << ZEND_CALL_INFO_SHIFT); \
|
|
} while (0)
|
|
|
|
#define ZEND_ADD_CALL_FLAG(call, flag) do { \
|
|
ZEND_ADD_CALL_FLAG_EX(Z_TYPE_INFO((call)->This), flag); \
|
|
} while (0)
|
|
|
|
#define ZEND_CALL_NUM_ARGS(call) \
|
|
(call)->This.u2.num_args
|
|
|
|
#define ZEND_CALL_FRAME_SLOT \
|
|
((int)((ZEND_MM_ALIGNED_SIZE(sizeof(zend_execute_data)) + ZEND_MM_ALIGNED_SIZE(sizeof(zval)) - 1) / ZEND_MM_ALIGNED_SIZE(sizeof(zval))))
|
|
|
|
#define ZEND_CALL_VAR(call, n) \
|
|
((zval*)(((char*)(call)) + ((int)(n))))
|
|
|
|
#define ZEND_CALL_VAR_NUM(call, n) \
|
|
(((zval*)(call)) + (ZEND_CALL_FRAME_SLOT + ((int)(n))))
|
|
|
|
#define ZEND_CALL_ARG(call, n) \
|
|
ZEND_CALL_VAR_NUM(call, ((int)(n)) - 1)
|
|
|
|
#define EX(element) ((execute_data)->element)
|
|
|
|
#define EX_CALL_INFO() ZEND_CALL_INFO(execute_data)
|
|
#define EX_CALL_KIND() ZEND_CALL_KIND(execute_data)
|
|
#define EX_NUM_ARGS() ZEND_CALL_NUM_ARGS(execute_data)
|
|
|
|
#define ZEND_CALL_USES_STRICT_TYPES(call) \
|
|
(((call)->func->common.fn_flags & ZEND_ACC_STRICT_TYPES) != 0)
|
|
|
|
#define EX_USES_STRICT_TYPES() \
|
|
ZEND_CALL_USES_STRICT_TYPES(execute_data)
|
|
|
|
#define ZEND_ARG_USES_STRICT_TYPES() \
|
|
(EG(current_execute_data)->prev_execute_data && \
|
|
EG(current_execute_data)->prev_execute_data->func && \
|
|
ZEND_CALL_USES_STRICT_TYPES(EG(current_execute_data)->prev_execute_data))
|
|
|
|
#define ZEND_RET_USES_STRICT_TYPES() \
|
|
ZEND_CALL_USES_STRICT_TYPES(EG(current_execute_data))
|
|
|
|
#define EX_VAR(n) ZEND_CALL_VAR(execute_data, n)
|
|
#define EX_VAR_NUM(n) ZEND_CALL_VAR_NUM(execute_data, n)
|
|
|
|
#define EX_VAR_TO_NUM(n) ((uint32_t)(ZEND_CALL_VAR(NULL, n) - ZEND_CALL_VAR_NUM(NULL, 0)))
|
|
|
|
#define ZEND_OPLINE_TO_OFFSET(opline, target) \
|
|
((char*)(target) - (char*)(opline))
|
|
|
|
#define ZEND_OPLINE_NUM_TO_OFFSET(op_array, opline, opline_num) \
|
|
((char*)&(op_array)->opcodes[opline_num] - (char*)(opline))
|
|
|
|
#define ZEND_OFFSET_TO_OPLINE(base, offset) \
|
|
((zend_op*)(((char*)(base)) + (int)offset))
|
|
|
|
#define ZEND_OFFSET_TO_OPLINE_NUM(op_array, base, offset) \
|
|
(ZEND_OFFSET_TO_OPLINE(base, offset) - op_array->opcodes)
|
|
|
|
#if ZEND_USE_ABS_JMP_ADDR
|
|
|
|
/* run-time jump target */
|
|
# define OP_JMP_ADDR(opline, node) \
|
|
(node).jmp_addr
|
|
|
|
# define ZEND_SET_OP_JMP_ADDR(opline, node, val) do { \
|
|
(node).jmp_addr = (val); \
|
|
} while (0)
|
|
|
|
/* convert jump target from compile-time to run-time */
|
|
# define ZEND_PASS_TWO_UPDATE_JMP_TARGET(op_array, opline, node) do { \
|
|
(node).jmp_addr = (op_array)->opcodes + (node).opline_num; \
|
|
} while (0)
|
|
|
|
/* convert jump target back from run-time to compile-time */
|
|
# define ZEND_PASS_TWO_UNDO_JMP_TARGET(op_array, opline, node) do { \
|
|
(node).opline_num = (node).jmp_addr - (op_array)->opcodes; \
|
|
} while (0)
|
|
|
|
#else
|
|
|
|
/* run-time jump target */
|
|
# define OP_JMP_ADDR(opline, node) \
|
|
ZEND_OFFSET_TO_OPLINE(opline, (node).jmp_offset)
|
|
|
|
# define ZEND_SET_OP_JMP_ADDR(opline, node, val) do { \
|
|
(node).jmp_offset = ZEND_OPLINE_TO_OFFSET(opline, val); \
|
|
} while (0)
|
|
|
|
/* convert jump target from compile-time to run-time */
|
|
# define ZEND_PASS_TWO_UPDATE_JMP_TARGET(op_array, opline, node) do { \
|
|
(node).jmp_offset = ZEND_OPLINE_NUM_TO_OFFSET(op_array, opline, (node).opline_num); \
|
|
} while (0)
|
|
|
|
/* convert jump target back from run-time to compile-time */
|
|
# define ZEND_PASS_TWO_UNDO_JMP_TARGET(op_array, opline, node) do { \
|
|
(node).opline_num = ZEND_OFFSET_TO_OPLINE_NUM(op_array, opline, (node).jmp_offset); \
|
|
} while (0)
|
|
|
|
#endif
|
|
|
|
/* constant-time constant */
|
|
# define CT_CONSTANT_EX(op_array, num) \
|
|
((op_array)->literals + (num))
|
|
|
|
# define CT_CONSTANT(node) \
|
|
CT_CONSTANT_EX(CG(active_op_array), (node).constant)
|
|
|
|
#if ZEND_USE_ABS_CONST_ADDR
|
|
|
|
/* run-time constant */
|
|
# define RT_CONSTANT_EX(base, node) \
|
|
(node).zv
|
|
|
|
/* convert constant from compile-time to run-time */
|
|
# define ZEND_PASS_TWO_UPDATE_CONSTANT(op_array, node) do { \
|
|
(node).zv = CT_CONSTANT_EX(op_array, (node).constant); \
|
|
} while (0)
|
|
|
|
/* convert constant back from run-time to compile-time */
|
|
# define ZEND_PASS_TWO_UNDO_CONSTANT(op_array, node) do { \
|
|
(node).constant = (node).zv - (op_array)->literals; \
|
|
} while (0)
|
|
|
|
#else
|
|
|
|
/* run-time constant */
|
|
# define RT_CONSTANT_EX(base, node) \
|
|
((zval*)(((char*)(base)) + (node).constant))
|
|
|
|
/* convert constant from compile-time to run-time */
|
|
# define ZEND_PASS_TWO_UPDATE_CONSTANT(op_array, node) do { \
|
|
(node).constant *= sizeof(zval); \
|
|
} while (0)
|
|
|
|
/* convert constant back from run-time to compile-time (do nothing) */
|
|
# define ZEND_PASS_TWO_UNDO_CONSTANT(op_array, node) do { \
|
|
(node).constant /= sizeof(zval); \
|
|
} while (0)
|
|
|
|
#endif
|
|
|
|
#if ZEND_EX_USE_LITERALS
|
|
|
|
# define EX_LITERALS() \
|
|
EX(literals)
|
|
|
|
# define EX_LOAD_LITERALS(op_array) do { \
|
|
EX(literals) = (op_array)->literals; \
|
|
} while (0)
|
|
|
|
#else
|
|
|
|
# define EX_LITERALS() \
|
|
EX(func)->op_array.literals
|
|
|
|
# define EX_LOAD_LITERALS(op_array) do { \
|
|
} while (0)
|
|
|
|
#endif
|
|
|
|
/* run-time constant */
|
|
#define RT_CONSTANT(op_array, node) \
|
|
RT_CONSTANT_EX((op_array)->literals, node)
|
|
|
|
/* constant in currently executed function */
|
|
#define EX_CONSTANT(node) \
|
|
RT_CONSTANT_EX(EX_LITERALS(), node)
|
|
|
|
#if ZEND_EX_USE_RUN_TIME_CACHE
|
|
|
|
# define EX_RUN_TIME_CACHE() \
|
|
EX(run_time_cache)
|
|
|
|
# define EX_LOAD_RUN_TIME_CACHE(op_array) do { \
|
|
EX(run_time_cache) = (op_array)->run_time_cache; \
|
|
} while (0)
|
|
|
|
#else
|
|
|
|
# define EX_RUN_TIME_CACHE() \
|
|
EX(func)->op_array.run_time_cache
|
|
|
|
# define EX_LOAD_RUN_TIME_CACHE(op_array) do { \
|
|
} while (0)
|
|
|
|
#endif
|
|
|
|
#define IS_CONST (1<<0)
|
|
#define IS_TMP_VAR (1<<1)
|
|
#define IS_VAR (1<<2)
|
|
#define IS_UNUSED (1<<3) /* Unused variable */
|
|
#define IS_CV (1<<4) /* Compiled variable */
|
|
|
|
#include "zend_globals.h"
|
|
|
|
BEGIN_EXTERN_C()
|
|
|
|
void init_compiler(void);
|
|
void shutdown_compiler(void);
|
|
void zend_init_compiler_data_structures(void);
|
|
|
|
void zend_oparray_context_begin(zend_oparray_context *prev_context);
|
|
void zend_oparray_context_end(zend_oparray_context *prev_context);
|
|
void zend_file_context_begin(zend_file_context *prev_context);
|
|
void zend_file_context_end(zend_file_context *prev_context);
|
|
|
|
extern ZEND_API zend_op_array *(*zend_compile_file)(zend_file_handle *file_handle, int type);
|
|
extern ZEND_API zend_op_array *(*zend_compile_string)(zval *source_string, char *filename);
|
|
|
|
ZEND_API int lex_scan(zval *zendlval);
|
|
void startup_scanner(void);
|
|
void shutdown_scanner(void);
|
|
|
|
ZEND_API zend_string *zend_set_compiled_filename(zend_string *new_compiled_filename);
|
|
ZEND_API void zend_restore_compiled_filename(zend_string *original_compiled_filename);
|
|
ZEND_API zend_string *zend_get_compiled_filename(void);
|
|
ZEND_API int zend_get_compiled_lineno(void);
|
|
ZEND_API size_t zend_get_scanned_file_offset(void);
|
|
|
|
ZEND_API zend_string *zend_get_compiled_variable_name(const zend_op_array *op_array, uint32_t var);
|
|
|
|
#ifdef ZTS
|
|
const char *zend_get_zendtext(void);
|
|
int zend_get_zendleng(void);
|
|
#endif
|
|
|
|
typedef int (ZEND_FASTCALL *unary_op_type)(zval *, zval *);
|
|
typedef int (ZEND_FASTCALL *binary_op_type)(zval *, zval *, zval *);
|
|
|
|
ZEND_API unary_op_type get_unary_op(int opcode);
|
|
ZEND_API binary_op_type get_binary_op(int opcode);
|
|
|
|
void zend_stop_lexing(void);
|
|
void zend_emit_final_return(int return_one);
|
|
|
|
/* Used during AST construction */
|
|
zend_ast *zend_ast_append_str(zend_ast *left, zend_ast *right);
|
|
zend_ast *zend_negate_num_string(zend_ast *ast);
|
|
uint32_t zend_add_class_modifier(uint32_t flags, uint32_t new_flag);
|
|
uint32_t zend_add_member_modifier(uint32_t flags, uint32_t new_flag);
|
|
void zend_handle_encoding_declaration(zend_ast *ast);
|
|
|
|
/* parser-driven code generators */
|
|
void zend_do_free(znode *op1);
|
|
|
|
ZEND_API int do_bind_function(const zend_op_array *op_array, const zend_op *opline, HashTable *function_table, zend_bool compile_time);
|
|
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);
|
|
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);
|
|
ZEND_API void zend_do_delayed_early_binding(const zend_op_array *op_array);
|
|
|
|
void zend_do_extended_info(void);
|
|
void zend_do_extended_fcall_begin(void);
|
|
void zend_do_extended_fcall_end(void);
|
|
|
|
void zend_verify_namespace(void);
|
|
|
|
void zend_resolve_goto_label(zend_op_array *op_array, zend_op *opline);
|
|
|
|
ZEND_API void function_add_ref(zend_function *function);
|
|
|
|
#define INITIAL_OP_ARRAY_SIZE 64
|
|
|
|
|
|
/* helper functions in zend_language_scanner.l */
|
|
ZEND_API zend_op_array *compile_file(zend_file_handle *file_handle, int type);
|
|
ZEND_API zend_op_array *compile_string(zval *source_string, char *filename);
|
|
ZEND_API zend_op_array *compile_filename(int type, zval *filename);
|
|
ZEND_API void zend_try_exception_handler();
|
|
ZEND_API int zend_execute_scripts(int type, zval *retval, int file_count, ...);
|
|
ZEND_API int open_file_for_scanning(zend_file_handle *file_handle);
|
|
ZEND_API void init_op_array(zend_op_array *op_array, zend_uchar type, int initial_ops_size);
|
|
ZEND_API void destroy_op_array(zend_op_array *op_array);
|
|
ZEND_API void zend_destroy_file_handle(zend_file_handle *file_handle);
|
|
ZEND_API void zend_cleanup_user_class_data(zend_class_entry *ce);
|
|
ZEND_API void zend_cleanup_internal_class_data(zend_class_entry *ce);
|
|
ZEND_API void zend_cleanup_internal_classes(void);
|
|
ZEND_API void zend_cleanup_op_array_data(zend_op_array *op_array);
|
|
ZEND_API int clean_non_persistent_function_full(zval *zv);
|
|
ZEND_API int clean_non_persistent_class_full(zval *zv);
|
|
|
|
ZEND_API void destroy_zend_function(zend_function *function);
|
|
ZEND_API void zend_function_dtor(zval *zv);
|
|
ZEND_API void destroy_zend_class(zval *zv);
|
|
void zend_class_add_ref(zval *zv);
|
|
|
|
ZEND_API zend_string *zend_mangle_property_name(const char *src1, size_t src1_length, const char *src2, size_t src2_length, int internal);
|
|
#define zend_unmangle_property_name(mangled_property, class_name, prop_name) \
|
|
zend_unmangle_property_name_ex(mangled_property, class_name, prop_name, NULL)
|
|
ZEND_API int zend_unmangle_property_name_ex(const zend_string *name, const char **class_name, const char **prop_name, size_t *prop_len);
|
|
|
|
#define ZEND_FUNCTION_DTOR zend_function_dtor
|
|
#define ZEND_CLASS_DTOR destroy_zend_class
|
|
|
|
zend_op *get_next_op(zend_op_array *op_array);
|
|
void init_op(zend_op *op);
|
|
uint32_t get_next_op_number(zend_op_array *op_array);
|
|
ZEND_API int pass_two(zend_op_array *op_array);
|
|
zend_brk_cont_element *get_next_brk_cont_element(void);
|
|
ZEND_API zend_bool zend_is_compiling(void);
|
|
ZEND_API char *zend_make_compiled_string_description(const char *name);
|
|
ZEND_API void zend_initialize_class_data(zend_class_entry *ce, zend_bool nullify_handlers);
|
|
uint32_t zend_get_class_fetch_type(zend_string *name);
|
|
ZEND_API zend_uchar zend_get_call_op(const zend_op *init_op, zend_function *fbc);
|
|
ZEND_API int zend_is_smart_branch(zend_op *opline);
|
|
|
|
typedef zend_bool (*zend_auto_global_callback)(zend_string *name);
|
|
typedef struct _zend_auto_global {
|
|
zend_string *name;
|
|
zend_auto_global_callback auto_global_callback;
|
|
zend_bool jit;
|
|
zend_bool armed;
|
|
} zend_auto_global;
|
|
|
|
ZEND_API int zend_register_auto_global(zend_string *name, zend_bool jit, zend_auto_global_callback auto_global_callback);
|
|
ZEND_API void zend_activate_auto_globals(void);
|
|
ZEND_API zend_bool zend_is_auto_global(zend_string *name);
|
|
ZEND_API zend_bool zend_is_auto_global_str(char *name, size_t len);
|
|
ZEND_API size_t zend_dirname(char *path, size_t len);
|
|
ZEND_API void zend_set_function_arg_flags(zend_function *func);
|
|
|
|
int zendlex(zend_parser_stack_elem *elem);
|
|
|
|
int zend_add_literal(zend_op_array *op_array, zval *zv);
|
|
|
|
void zend_assert_valid_class_name(const zend_string *const_name);
|
|
|
|
/* BEGIN: OPCODES */
|
|
|
|
#include "zend_vm_opcodes.h"
|
|
|
|
/* END: OPCODES */
|
|
|
|
/* class fetches */
|
|
#define ZEND_FETCH_CLASS_DEFAULT 0
|
|
#define ZEND_FETCH_CLASS_SELF 1
|
|
#define ZEND_FETCH_CLASS_PARENT 2
|
|
#define ZEND_FETCH_CLASS_STATIC 3
|
|
#define ZEND_FETCH_CLASS_AUTO 4
|
|
#define ZEND_FETCH_CLASS_INTERFACE 5
|
|
#define ZEND_FETCH_CLASS_TRAIT 6
|
|
#define ZEND_FETCH_CLASS_MASK 0x0f
|
|
#define ZEND_FETCH_CLASS_NO_AUTOLOAD 0x80
|
|
#define ZEND_FETCH_CLASS_SILENT 0x0100
|
|
#define ZEND_FETCH_CLASS_EXCEPTION 0x0200
|
|
|
|
#define ZEND_PARAM_REF (1<<0)
|
|
#define ZEND_PARAM_VARIADIC (1<<1)
|
|
|
|
#define ZEND_NAME_FQ 0
|
|
#define ZEND_NAME_NOT_FQ 1
|
|
#define ZEND_NAME_RELATIVE 2
|
|
|
|
#define ZEND_TYPE_NULLABLE (1<<8)
|
|
|
|
#define ZEND_ARRAY_SYNTAX_LIST 1 /* list() */
|
|
#define ZEND_ARRAY_SYNTAX_LONG 2 /* array() */
|
|
#define ZEND_ARRAY_SYNTAX_SHORT 3 /* [] */
|
|
|
|
/* var status for backpatching */
|
|
#define BP_VAR_R 0
|
|
#define BP_VAR_W 1
|
|
#define BP_VAR_RW 2
|
|
#define BP_VAR_IS 3
|
|
#define BP_VAR_FUNC_ARG 4
|
|
#define BP_VAR_UNSET 5
|
|
|
|
/* Bottom 3 bits are the type, top bits are arg num for BP_VAR_FUNC_ARG */
|
|
#define BP_VAR_SHIFT 3
|
|
#define BP_VAR_MASK 7
|
|
|
|
|
|
#define ZEND_INTERNAL_FUNCTION 1
|
|
#define ZEND_USER_FUNCTION 2
|
|
#define ZEND_OVERLOADED_FUNCTION 3
|
|
#define ZEND_EVAL_CODE 4
|
|
#define ZEND_OVERLOADED_FUNCTION_TEMPORARY 5
|
|
|
|
/* A quick check (type == ZEND_USER_FUNCTION || type == ZEND_EVAL_CODE) */
|
|
#define ZEND_USER_CODE(type) ((type & 1) == 0)
|
|
|
|
#define ZEND_INTERNAL_CLASS 1
|
|
#define ZEND_USER_CLASS 2
|
|
|
|
#define ZEND_EVAL (1<<0)
|
|
#define ZEND_INCLUDE (1<<1)
|
|
#define ZEND_INCLUDE_ONCE (1<<2)
|
|
#define ZEND_REQUIRE (1<<3)
|
|
#define ZEND_REQUIRE_ONCE (1<<4)
|
|
|
|
#define ZEND_CT (1<<0)
|
|
#define ZEND_RT (1<<1)
|
|
|
|
/* global/local fetches */
|
|
#define ZEND_FETCH_GLOBAL 0x00000000
|
|
#define ZEND_FETCH_LOCAL 0x10000000
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|
#define ZEND_FETCH_GLOBAL_LOCK 0x40000000
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#define ZEND_FETCH_TYPE_MASK 0x70000000
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#define ZEND_FETCH_STANDARD 0x00000000
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|
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#define ZEND_ISSET 0x02000000
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|
#define ZEND_ISEMPTY 0x01000000
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|
#define ZEND_ISSET_ISEMPTY_MASK (ZEND_ISSET | ZEND_ISEMPTY)
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|
#define ZEND_QUICK_SET 0x00800000
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|
|
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#define ZEND_FETCH_ARG_MASK 0x000fffff
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|
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#define ZEND_FREE_ON_RETURN (1<<0)
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|
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#define ZEND_SEND_BY_VAL 0
|
|
#define ZEND_SEND_BY_REF 1
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|
#define ZEND_SEND_PREFER_REF 2
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|
|
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#define ZEND_DIM_IS 1
|
|
|
|
static zend_always_inline int zend_check_arg_send_type(const zend_function *zf, uint32_t arg_num, uint32_t mask)
|
|
{
|
|
arg_num--;
|
|
if (UNEXPECTED(arg_num >= zf->common.num_args)) {
|
|
if (EXPECTED((zf->common.fn_flags & ZEND_ACC_VARIADIC) == 0)) {
|
|
return 0;
|
|
}
|
|
arg_num = zf->common.num_args;
|
|
}
|
|
return UNEXPECTED((zf->common.arg_info[arg_num].pass_by_reference & mask) != 0);
|
|
}
|
|
|
|
#define ARG_MUST_BE_SENT_BY_REF(zf, arg_num) \
|
|
zend_check_arg_send_type(zf, arg_num, ZEND_SEND_BY_REF)
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|
|
|
#define ARG_SHOULD_BE_SENT_BY_REF(zf, arg_num) \
|
|
zend_check_arg_send_type(zf, arg_num, ZEND_SEND_BY_REF|ZEND_SEND_PREFER_REF)
|
|
|
|
#define ARG_MAY_BE_SENT_BY_REF(zf, arg_num) \
|
|
zend_check_arg_send_type(zf, arg_num, ZEND_SEND_PREFER_REF)
|
|
|
|
/* Quick API to check firat 12 arguments */
|
|
#define MAX_ARG_FLAG_NUM 12
|
|
|
|
#ifdef WORDS_BIGENDIAN
|
|
# define ZEND_SET_ARG_FLAG(zf, arg_num, mask) do { \
|
|
(zf)->quick_arg_flags |= ((mask) << ((arg_num) - 1) * 2); \
|
|
} while (0)
|
|
# define ZEND_CHECK_ARG_FLAG(zf, arg_num, mask) \
|
|
(((zf)->quick_arg_flags >> (((arg_num) - 1) * 2)) & (mask))
|
|
#else
|
|
# define ZEND_SET_ARG_FLAG(zf, arg_num, mask) do { \
|
|
(zf)->quick_arg_flags |= (((mask) << 6) << (arg_num) * 2); \
|
|
} while (0)
|
|
# define ZEND_CHECK_ARG_FLAG(zf, arg_num, mask) \
|
|
(((zf)->quick_arg_flags >> (((arg_num) + 3) * 2)) & (mask))
|
|
#endif
|
|
|
|
#define QUICK_ARG_MUST_BE_SENT_BY_REF(zf, arg_num) \
|
|
ZEND_CHECK_ARG_FLAG(zf, arg_num, ZEND_SEND_BY_REF)
|
|
|
|
#define QUICK_ARG_SHOULD_BE_SENT_BY_REF(zf, arg_num) \
|
|
ZEND_CHECK_ARG_FLAG(zf, arg_num, ZEND_SEND_BY_REF|ZEND_SEND_PREFER_REF)
|
|
|
|
#define QUICK_ARG_MAY_BE_SENT_BY_REF(zf, arg_num) \
|
|
ZEND_CHECK_ARG_FLAG(zf, arg_num, ZEND_SEND_PREFER_REF)
|
|
|
|
#define ZEND_RETURN_VAL 0
|
|
#define ZEND_RETURN_REF 1
|
|
|
|
|
|
#define ZEND_RETURNS_FUNCTION 1<<0
|
|
#define ZEND_RETURNS_VALUE 1<<1
|
|
|
|
#define ZEND_ARRAY_ELEMENT_REF (1<<0)
|
|
#define ZEND_ARRAY_NOT_PACKED (1<<1)
|
|
#define ZEND_ARRAY_SIZE_SHIFT 2
|
|
|
|
/* For "use" AST nodes and the seen symbol table */
|
|
#define ZEND_SYMBOL_CLASS (1<<0)
|
|
#define ZEND_SYMBOL_FUNCTION (1<<1)
|
|
#define ZEND_SYMBOL_CONST (1<<2)
|
|
|
|
/* Pseudo-opcodes that are used only temporarily during compilation */
|
|
#define ZEND_GOTO 253
|
|
#define ZEND_BRK 254
|
|
#define ZEND_CONT 255
|
|
|
|
|
|
END_EXTERN_C()
|
|
|
|
#define ZEND_CLONE_FUNC_NAME "__clone"
|
|
#define ZEND_CONSTRUCTOR_FUNC_NAME "__construct"
|
|
#define ZEND_DESTRUCTOR_FUNC_NAME "__destruct"
|
|
#define ZEND_GET_FUNC_NAME "__get"
|
|
#define ZEND_SET_FUNC_NAME "__set"
|
|
#define ZEND_UNSET_FUNC_NAME "__unset"
|
|
#define ZEND_ISSET_FUNC_NAME "__isset"
|
|
#define ZEND_CALL_FUNC_NAME "__call"
|
|
#define ZEND_CALLSTATIC_FUNC_NAME "__callstatic"
|
|
#define ZEND_TOSTRING_FUNC_NAME "__tostring"
|
|
#define ZEND_AUTOLOAD_FUNC_NAME "__autoload"
|
|
#define ZEND_INVOKE_FUNC_NAME "__invoke"
|
|
#define ZEND_DEBUGINFO_FUNC_NAME "__debuginfo"
|
|
|
|
/* The following constants may be combined in CG(compiler_options)
|
|
* to change the default compiler behavior */
|
|
|
|
/* generate extended debug information */
|
|
#define ZEND_COMPILE_EXTENDED_INFO (1<<0)
|
|
|
|
/* call op_array handler of extendions */
|
|
#define ZEND_COMPILE_HANDLE_OP_ARRAY (1<<1)
|
|
|
|
/* generate ZEND_INIT_FCALL_BY_NAME for internal functions instead of ZEND_INIT_FCALL */
|
|
#define ZEND_COMPILE_IGNORE_INTERNAL_FUNCTIONS (1<<2)
|
|
|
|
/* don't perform early binding for classes inherited form internal ones;
|
|
* in namespaces assume that internal class that doesn't exist at compile-time
|
|
* may apper in run-time */
|
|
#define ZEND_COMPILE_IGNORE_INTERNAL_CLASSES (1<<3)
|
|
|
|
/* generate ZEND_DECLARE_INHERITED_CLASS_DELAYED opcode to delay early binding */
|
|
#define ZEND_COMPILE_DELAYED_BINDING (1<<4)
|
|
|
|
/* disable constant substitution at compile-time */
|
|
#define ZEND_COMPILE_NO_CONSTANT_SUBSTITUTION (1<<5)
|
|
|
|
/* disable usage of builtin instruction for strlen() */
|
|
#define ZEND_COMPILE_NO_BUILTIN_STRLEN (1<<6)
|
|
|
|
/* disable substitution of persistent constants at compile-time */
|
|
#define ZEND_COMPILE_NO_PERSISTENT_CONSTANT_SUBSTITUTION (1<<7)
|
|
|
|
/* generate ZEND_INIT_FCALL_BY_NAME for userland functions instead of ZEND_INIT_FCALL */
|
|
#define ZEND_COMPILE_IGNORE_USER_FUNCTIONS (1<<8)
|
|
|
|
/* force IS_OBJ_USE_GUARDS for all classes */
|
|
#define ZEND_COMPILE_GUARDS (1<<9)
|
|
|
|
/* disable builtin special case function calls */
|
|
#define ZEND_COMPILE_NO_BUILTINS (1<<10)
|
|
|
|
/* The default value for CG(compiler_options) */
|
|
#define ZEND_COMPILE_DEFAULT ZEND_COMPILE_HANDLE_OP_ARRAY
|
|
|
|
/* The default value for CG(compiler_options) during eval() */
|
|
#define ZEND_COMPILE_DEFAULT_FOR_EVAL 0
|
|
|
|
ZEND_API zend_bool zend_binary_op_produces_numeric_string_error(uint32_t opcode, zval *op1, zval *op2);
|
|
|
|
#endif /* ZEND_COMPILE_H */
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* indent-tabs-mode: t
|
|
* End:
|
|
*/
|