mirror of
https://github.com/php/php-src.git
synced 2024-12-30 04:06:30 +08:00
326 lines
7.3 KiB
C
326 lines
7.3 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 <stdio.h>
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#include "zend.h"
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#include "zend_API.h"
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#include "zend_ast.h"
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#include "zend_globals.h"
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#include "zend_constants.h"
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#include "zend_list.h"
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ZEND_API void _zval_dtor_func(zval *zvalue ZEND_FILE_LINE_DC)
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{
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switch (Z_TYPE_P(zvalue) & IS_CONSTANT_TYPE_MASK) {
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case IS_STRING:
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case IS_CONSTANT:
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CHECK_ZVAL_STRING_REL(zvalue);
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STR_RELEASE(Z_STR_P(zvalue));
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break;
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case IS_ARRAY:
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case IS_CONSTANT_ARRAY: {
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TSRMLS_FETCH();
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if (Z_ARRVAL_P(zvalue) != &EG(symbol_table).ht) {
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/* break possible cycles */
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Z_TYPE_P(zvalue) = IS_NULL;
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zend_hash_destroy(Z_ARRVAL_P(zvalue));
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efree(Z_ARR_P(zvalue));
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}
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}
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break;
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case IS_CONSTANT_AST:
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zend_ast_destroy(Z_AST_P(zvalue)->ast);
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efree(Z_AST_P(zvalue));
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break;
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case IS_OBJECT:
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{
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TSRMLS_FETCH();
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OBJ_RELEASE(Z_OBJ_P(zvalue));
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}
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break;
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case IS_RESOURCE:
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{
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TSRMLS_FETCH();
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if (Z_DELREF_P(zvalue) == 0) {
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/* destroy resource */
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zend_list_delete(Z_RES_P(zvalue));
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}
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}
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break;
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case IS_LONG:
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case IS_DOUBLE:
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case IS_BOOL:
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case IS_NULL:
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default:
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return;
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break;
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}
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}
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ZEND_API void _zval_dtor_func_for_ptr(zval *zvalue ZEND_FILE_LINE_DC)
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{
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switch (Z_TYPE_P(zvalue) & IS_CONSTANT_TYPE_MASK) {
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case IS_STRING:
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case IS_CONSTANT:
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CHECK_ZVAL_STRING_REL(zvalue);
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STR_FREE(Z_STR_P(zvalue));
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break;
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case IS_ARRAY:
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case IS_CONSTANT_ARRAY: {
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TSRMLS_FETCH();
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if (Z_ARRVAL_P(zvalue) != &EG(symbol_table).ht) {
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/* break possible cycles */
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Z_TYPE_P(zvalue) = IS_NULL;
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zend_hash_destroy(Z_ARRVAL_P(zvalue));
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efree(Z_ARR_P(zvalue));
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}
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}
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break;
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case IS_CONSTANT_AST:
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zend_ast_destroy(Z_AST_P(zvalue)->ast);
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efree(Z_AST_P(zvalue));
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break;
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case IS_OBJECT:
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{
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TSRMLS_FETCH();
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zend_objects_store_del(Z_OBJ_P(zvalue) TSRMLS_CC);
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}
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break;
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case IS_RESOURCE:
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{
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TSRMLS_FETCH();
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/* destroy resource */
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zend_list_delete(Z_RES_P(zvalue));
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}
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break;
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case IS_LONG:
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case IS_DOUBLE:
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case IS_BOOL:
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case IS_NULL:
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default:
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return;
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break;
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}
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}
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ZEND_API void _zval_internal_dtor(zval *zvalue ZEND_FILE_LINE_DC)
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{
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switch (Z_TYPE_P(zvalue) & IS_CONSTANT_TYPE_MASK) {
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case IS_STRING:
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case IS_CONSTANT:
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CHECK_ZVAL_STRING_REL(zvalue);
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STR_RELEASE(Z_STR_P(zvalue));
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break;
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case IS_ARRAY:
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case IS_CONSTANT_ARRAY:
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case IS_CONSTANT_AST:
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case IS_OBJECT:
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case IS_RESOURCE:
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zend_error(E_CORE_ERROR, "Internal zval's can't be arrays, objects or resources");
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break;
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case IS_LONG:
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case IS_DOUBLE:
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case IS_BOOL:
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case IS_NULL:
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default:
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break;
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}
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}
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ZEND_API void _zval_internal_dtor_for_ptr(zval *zvalue ZEND_FILE_LINE_DC)
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{
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switch (Z_TYPE_P(zvalue) & IS_CONSTANT_TYPE_MASK) {
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case IS_STRING:
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case IS_CONSTANT:
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CHECK_ZVAL_STRING_REL(zvalue);
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STR_FREE(Z_STR_P(zvalue));
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break;
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case IS_ARRAY:
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case IS_CONSTANT_ARRAY:
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case IS_CONSTANT_AST:
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case IS_OBJECT:
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case IS_RESOURCE:
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zend_error(E_CORE_ERROR, "Internal zval's can't be arrays, objects or resources");
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break;
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case IS_LONG:
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case IS_DOUBLE:
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case IS_BOOL:
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case IS_NULL:
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default:
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break;
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}
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}
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ZEND_API void zval_add_ref(zval *p)
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{
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if (Z_REFCOUNTED_P(p)) {
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Z_ADDREF_P(p);
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}
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}
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ZEND_API void _zval_copy_ctor_func(zval *zvalue ZEND_FILE_LINE_DC)
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{
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switch (Z_TYPE_P(zvalue) & IS_CONSTANT_TYPE_MASK) {
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case IS_CONSTANT:
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case IS_STRING:
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CHECK_ZVAL_STRING_REL(zvalue);
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Z_STR_P(zvalue) = STR_DUP(Z_STR_P(zvalue), 0);
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break;
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case IS_ARRAY:
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case IS_CONSTANT_ARRAY: {
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HashTable *ht = Z_ARRVAL_P(zvalue);
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TSRMLS_FETCH();
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if (ht == &EG(symbol_table).ht) {
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return; /* do nothing */
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}
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ZVAL_NEW_ARR(zvalue);
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zend_hash_init(Z_ARRVAL_P(zvalue), zend_hash_num_elements(ht), NULL, ZVAL_PTR_DTOR, 0);
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zend_hash_copy(Z_ARRVAL_P(zvalue), ht, zval_add_ref);
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}
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break;
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case IS_CONSTANT_AST: {
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zend_ast_ref *ast = emalloc(sizeof(zend_ast_ref));
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ast->gc.refcount = 1;
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ast->gc.u.v.type = IS_CONSTANT_AST;
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ast->ast = zend_ast_copy(Z_ASTVAL_P(zvalue));
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Z_AST_P(zvalue) = ast;
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}
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break;
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case IS_OBJECT:
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case IS_RESOURCE:
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case IS_REFERENCE:
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Z_ADDREF_P(zvalue);
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break;
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}
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}
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ZEND_API int zend_print_variable(zval *var)
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{
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return zend_print_zval(var, 0);
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}
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ZEND_API void _zval_dtor_wrapper(zval *zvalue)
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{
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TSRMLS_FETCH();
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GC_REMOVE_ZVAL_FROM_BUFFER(zvalue);
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zval_dtor(zvalue);
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}
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#if ZEND_DEBUG
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ZEND_API void _zval_copy_ctor_wrapper(zval *zvalue)
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{
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zval_copy_ctor(zvalue);
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}
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ZEND_API void _zval_internal_dtor_wrapper(zval *zvalue)
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{
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zval_internal_dtor(zvalue);
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}
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ZEND_API void _zval_ptr_dtor_wrapper(zval *zval_ptr)
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{
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zval_ptr_dtor(zval_ptr);
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}
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ZEND_API void _zval_internal_ptr_dtor_wrapper(zval *zval_ptr)
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{
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zval_internal_ptr_dtor(zval_ptr);
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}
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#endif
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ZEND_API int zval_copy_static_var(zval *p TSRMLS_DC, int num_args, va_list args, zend_hash_key *key) /* {{{ */
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{
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HashTable *target = va_arg(args, HashTable*);
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zend_bool is_ref;
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zval tmp;
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if (Z_TYPE_P(p) & (IS_LEXICAL_VAR|IS_LEXICAL_REF)) {
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is_ref = Z_TYPE_P(p) & IS_LEXICAL_REF;
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if (!EG(active_symbol_table)) {
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zend_rebuild_symbol_table(TSRMLS_C);
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}
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p = zend_hash_find(EG(active_symbol_table), key->key);
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if (!p) {
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p = &tmp;
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ZVAL_NULL(&tmp);
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if (is_ref) {
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ZVAL_NEW_REF(&tmp, &tmp);
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zend_hash_add(EG(active_symbol_table), key->key, &tmp);
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} else {
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zend_error(E_NOTICE,"Undefined variable: %s", key->key->val);
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}
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} else {
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if (is_ref) {
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SEPARATE_ZVAL_TO_MAKE_IS_REF(p);
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if (!Z_ISREF_P(p)) {
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if (IS_REFCOUNTED(Z_TYPE_P(p)) && Z_REFCOUNT_P(p) > 1) {
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Z_DELREF_P(p);
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ZVAL_NEW_REF(p, p);
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zval_copy_ctor(Z_REFVAL_P(p));
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Z_SET_REFCOUNT_P(Z_REFVAL_P(p), 1);
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} else {
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ZVAL_NEW_REF(p, p);
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}
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}
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} else if (Z_ISREF_P(p)) {
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ZVAL_COPY_VALUE(&tmp, Z_REFVAL_P(p));
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if (Z_REFCOUNTED(tmp) && Z_REFCOUNT(tmp) > 1) {
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zval_copy_ctor(&tmp);
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Z_SET_REFCOUNT(tmp, 0);
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}
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p = &tmp;
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}
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}
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}
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if (zend_hash_add(target, key->key, p)) {
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if (Z_REFCOUNTED_P(p)) {
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Z_ADDREF_P(p);
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}
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}
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return ZEND_HASH_APPLY_KEEP;
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}
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/* }}} */
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* indent-tabs-mode: t
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* End:
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*/
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