/Zend/zend_compile.c
C | 5454 lines | 4294 code | 754 blank | 406 comment | 1094 complexity | 79b2bba80d4838380d8d3483804f6547 MD5 | raw file
Possible License(s): MPL-2.0-no-copyleft-exception, LGPL-2.1, BSD-3-Clause
- /*
- +----------------------------------------------------------------------+
- | Zend Engine |
- +----------------------------------------------------------------------+
- | Copyright (c) 1998-2011 Zend Technologies Ltd. (http://www.zend.com) |
- +----------------------------------------------------------------------+
- | This source file is subject to version 2.00 of the Zend license, |
- | that is bundled with this package in the file LICENSE, and is |
- | available through the world-wide-web at the following url: |
- | http://www.zend.com/license/2_00.txt. |
- | If you did not receive a copy of the Zend license and are unable to |
- | obtain it through the world-wide-web, please send a note to |
- | license@zend.com so we can mail you a copy immediately. |
- +----------------------------------------------------------------------+
- | Authors: Andi Gutmans <andi@zend.com> |
- | Zeev Suraski <zeev@zend.com> |
- +----------------------------------------------------------------------+
- */
- /* $Id: zend_compile.c 308443 2011-02-17 23:24:50Z felipe $ */
- #include <zend_language_parser.h>
- #include "zend.h"
- #include "zend_compile.h"
- #include "zend_constants.h"
- #include "zend_llist.h"
- #include "zend_API.h"
- #include "zend_exceptions.h"
- #include "tsrm_virtual_cwd.h"
- #ifdef ZEND_MULTIBYTE
- #include "zend_multibyte.h"
- #endif /* ZEND_MULTIBYTE */
- ZEND_API zend_op_array *(*zend_compile_file)(zend_file_handle *file_handle, int type TSRMLS_DC);
- ZEND_API zend_op_array *(*zend_compile_string)(zval *source_string, char *filename TSRMLS_DC);
- #ifndef ZTS
- ZEND_API zend_compiler_globals compiler_globals;
- ZEND_API zend_executor_globals executor_globals;
- #endif
- static void zend_duplicate_property_info(zend_property_info *property_info) /* {{{ */
- {
- property_info->name = estrndup(property_info->name, property_info->name_length);
- if (property_info->doc_comment) {
- property_info->doc_comment = estrndup(property_info->doc_comment, property_info->doc_comment_len);
- }
- }
- /* }}} */
- static void zend_duplicate_property_info_internal(zend_property_info *property_info) /* {{{ */
- {
- property_info->name = zend_strndup(property_info->name, property_info->name_length);
- }
- /* }}} */
- static void zend_destroy_property_info(zend_property_info *property_info) /* {{{ */
- {
- efree(property_info->name);
- if (property_info->doc_comment) {
- efree(property_info->doc_comment);
- }
- }
- /* }}} */
- static void zend_destroy_property_info_internal(zend_property_info *property_info) /* {{{ */
- {
- free(property_info->name);
- }
- /* }}} */
- static void build_runtime_defined_function_key(zval *result, const char *name, int name_length TSRMLS_DC) /* {{{ */
- {
- char char_pos_buf[32];
- uint char_pos_len;
- char *filename;
- char_pos_len = zend_sprintf(char_pos_buf, "%p", LANG_SCNG(yy_text));
- if (CG(active_op_array)->filename) {
- filename = CG(active_op_array)->filename;
- } else {
- filename = "-";
- }
- /* NULL, name length, filename length, last accepting char position length */
- result->value.str.len = 1+name_length+strlen(filename)+char_pos_len;
- #ifdef ZEND_MULTIBYTE
- /* must be binary safe */
- result->value.str.val = (char *) safe_emalloc(result->value.str.len, 1, 1);
- result->value.str.val[0] = '\0';
- sprintf(result->value.str.val+1, "%s%s%s", name, filename, char_pos_buf);
- #else
- zend_spprintf(&result->value.str.val, 0, "%c%s%s%s", '\0', name, filename, char_pos_buf);
- #endif /* ZEND_MULTIBYTE */
- result->type = IS_STRING;
- Z_SET_REFCOUNT_P(result, 1);
- }
- /* }}} */
- int zend_auto_global_arm(zend_auto_global *auto_global TSRMLS_DC) /* {{{ */
- {
- auto_global->armed = (auto_global->auto_global_callback ? 1 : 0);
- return 0;
- }
- /* }}} */
- ZEND_API int zend_auto_global_disable_jit(const char *varname, zend_uint varname_length TSRMLS_DC) /* {{{ */
- {
- zend_auto_global *auto_global;
- if (zend_hash_find(CG(auto_globals), varname, varname_length+1, (void **) &auto_global)==FAILURE) {
- return FAILURE;
- }
- auto_global->armed = 0;
- return SUCCESS;
- }
- /* }}} */
- static void init_compiler_declarables(TSRMLS_D) /* {{{ */
- {
- Z_TYPE(CG(declarables).ticks) = IS_LONG;
- Z_LVAL(CG(declarables).ticks) = 0;
- }
- /* }}} */
- void zend_init_compiler_data_structures(TSRMLS_D) /* {{{ */
- {
- zend_stack_init(&CG(bp_stack));
- zend_stack_init(&CG(function_call_stack));
- zend_stack_init(&CG(switch_cond_stack));
- zend_stack_init(&CG(foreach_copy_stack));
- zend_stack_init(&CG(object_stack));
- zend_stack_init(&CG(declare_stack));
- CG(active_class_entry) = NULL;
- zend_llist_init(&CG(list_llist), sizeof(list_llist_element), NULL, 0);
- zend_llist_init(&CG(dimension_llist), sizeof(int), NULL, 0);
- zend_stack_init(&CG(list_stack));
- CG(in_compilation) = 0;
- CG(start_lineno) = 0;
- CG(current_namespace) = NULL;
- CG(in_namespace) = 0;
- CG(has_bracketed_namespaces) = 0;
- CG(current_import) = NULL;
- init_compiler_declarables(TSRMLS_C);
- zend_hash_apply(CG(auto_globals), (apply_func_t) zend_auto_global_arm TSRMLS_CC);
- zend_stack_init(&CG(labels_stack));
- CG(labels) = NULL;
- #ifdef ZEND_MULTIBYTE
- CG(script_encoding_list) = NULL;
- CG(script_encoding_list_size) = 0;
- CG(internal_encoding) = NULL;
- CG(encoding_detector) = NULL;
- CG(encoding_converter) = NULL;
- CG(encoding_oddlen) = NULL;
- CG(encoding_declared) = 0;
- #endif /* ZEND_MULTIBYTE */
- }
- /* }}} */
- ZEND_API void file_handle_dtor(zend_file_handle *fh) /* {{{ */
- {
- TSRMLS_FETCH();
- zend_file_handle_dtor(fh TSRMLS_CC);
- }
- /* }}} */
- void init_compiler(TSRMLS_D) /* {{{ */
- {
- CG(active_op_array) = NULL;
- zend_init_compiler_data_structures(TSRMLS_C);
- zend_init_rsrc_list(TSRMLS_C);
- zend_hash_init(&CG(filenames_table), 5, NULL, (dtor_func_t) free_estring, 0);
- zend_llist_init(&CG(open_files), sizeof(zend_file_handle), (void (*)(void *)) file_handle_dtor, 0);
- CG(unclean_shutdown) = 0;
- }
- /* }}} */
- void shutdown_compiler(TSRMLS_D) /* {{{ */
- {
- zend_stack_destroy(&CG(bp_stack));
- zend_stack_destroy(&CG(function_call_stack));
- zend_stack_destroy(&CG(switch_cond_stack));
- zend_stack_destroy(&CG(foreach_copy_stack));
- zend_stack_destroy(&CG(object_stack));
- zend_stack_destroy(&CG(declare_stack));
- zend_stack_destroy(&CG(list_stack));
- zend_hash_destroy(&CG(filenames_table));
- zend_llist_destroy(&CG(open_files));
- zend_stack_destroy(&CG(labels_stack));
- #ifdef ZEND_MULTIBYTE
- if (CG(script_encoding_list)) {
- efree(CG(script_encoding_list));
- }
- #endif /* ZEND_MULTIBYTE */
- }
- /* }}} */
- ZEND_API char *zend_set_compiled_filename(const char *new_compiled_filename TSRMLS_DC) /* {{{ */
- {
- char **pp, *p;
- int length = strlen(new_compiled_filename);
- if (zend_hash_find(&CG(filenames_table), new_compiled_filename, length+1, (void **) &pp) == SUCCESS) {
- CG(compiled_filename) = *pp;
- return *pp;
- }
- p = estrndup(new_compiled_filename, length);
- zend_hash_update(&CG(filenames_table), new_compiled_filename, length+1, &p, sizeof(char *), (void **) &pp);
- CG(compiled_filename) = p;
- return p;
- }
- /* }}} */
- ZEND_API void zend_restore_compiled_filename(char *original_compiled_filename TSRMLS_DC) /* {{{ */
- {
- CG(compiled_filename) = original_compiled_filename;
- }
- /* }}} */
- ZEND_API char *zend_get_compiled_filename(TSRMLS_D) /* {{{ */
- {
- return CG(compiled_filename);
- }
- /* }}} */
- ZEND_API int zend_get_compiled_lineno(TSRMLS_D) /* {{{ */
- {
- return CG(zend_lineno);
- }
- /* }}} */
- ZEND_API zend_bool zend_is_compiling(TSRMLS_D) /* {{{ */
- {
- return CG(in_compilation);
- }
- /* }}} */
- static zend_uint get_temporary_variable(zend_op_array *op_array) /* {{{ */
- {
- return (op_array->T)++ * ZEND_MM_ALIGNED_SIZE(sizeof(temp_variable));
- }
- /* }}} */
- static int lookup_cv(zend_op_array *op_array, char* name, int name_len) /* {{{ */
- {
- int i = 0;
- ulong hash_value = zend_inline_hash_func(name, name_len+1);
- while (i < op_array->last_var) {
- if (op_array->vars[i].hash_value == hash_value &&
- op_array->vars[i].name_len == name_len &&
- strcmp(op_array->vars[i].name, name) == 0) {
- efree(name);
- return i;
- }
- i++;
- }
- i = op_array->last_var;
- op_array->last_var++;
- if (op_array->last_var > op_array->size_var) {
- op_array->size_var += 16; /* FIXME */
- op_array->vars = erealloc(op_array->vars, op_array->size_var*sizeof(zend_compiled_variable));
- }
- op_array->vars[i].name = name; /* estrndup(name, name_len); */
- op_array->vars[i].name_len = name_len;
- op_array->vars[i].hash_value = hash_value;
- return i;
- }
- /* }}} */
- 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.op_type = IS_TMP_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->op1 = *op1;
- opline->op2 = *op2;
- *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.op_type = IS_TMP_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->op1 = *op1;
- *result = opline->result;
- SET_UNUSED(opline->op2);
- }
- /* }}} */
- #define MAKE_NOP(opline) { opline->opcode = ZEND_NOP; memset(&opline->result,0,sizeof(znode)); memset(&opline->op1,0,sizeof(znode)); memset(&opline->op2,0,sizeof(znode)); opline->result.op_type=opline->op1.op_type=opline->op2.op_type=IS_UNUSED; }
- static void zend_do_op_data(zend_op *data_op, const znode *value TSRMLS_DC) /* {{{ */
- {
- data_op->opcode = ZEND_OP_DATA;
- 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);
- *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.u.var = get_temporary_variable(CG(active_op_array));
- opline->op2.u.EA.type = 0;
- opline->op2.op_type = IS_VAR;
- SET_UNUSED(opline->result);
- *result = last_op->result;
- return;
- default:
- break;
- }
- }
- opline->opcode = op;
- opline->op1 = *op1;
- opline->op2 = *op2;
- opline->result.op_type = IS_VAR;
- opline->result.u.EA.type = 0;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- *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(varname->u.constant.value.str.val, varname->u.constant.value.str.len TSRMLS_CC) &&
- !(varname->u.constant.value.str.len == (sizeof("this")-1) &&
- !memcmp(varname->u.constant.value.str.val, "this", sizeof("this"))) &&
- (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.var = lookup_cv(CG(active_op_array), varname->u.constant.value.str.val, varname->u.constant.value.str.len);
- result->u.EA.type = 0;
- varname->u.constant.value.str.val = CG(active_op_array)->vars[result->u.var].name;
- 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.op_type = IS_VAR;
- opline_ptr->result.u.EA.type = 0;
- opline_ptr->result.u.var = get_temporary_variable(CG(active_op_array));
- opline_ptr->op1 = *varname;
- *result = opline_ptr->result;
- SET_UNUSED(opline_ptr->op2);
- opline_ptr->op2.u.EA.type = ZEND_FETCH_LOCAL;
- if (varname->op_type == IS_CONST && varname->u.constant.type == IS_STRING) {
- if (zend_is_auto_global(varname->u.constant.value.str.val, varname->u.constant.value.str.len TSRMLS_CC)) {
- opline_ptr->op2.u.EA.type = 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;
- 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.op_type = IS_VAR;
- opline.result.u.EA.type = 0;
- opline.result.u.var = get_temporary_variable(CG(active_op_array));
- opline.op1.op_type = IS_CONST;
- opline.op1.u.constant.type = IS_STRING;
- opline.op1.u.constant.value.str.val = estrdup(CG(active_op_array)->vars[result->u.var].name);
- opline.op1.u.constant.value.str.len = CG(active_op_array)->vars[result->u.var].name_len;
- SET_UNUSED(opline.op2);
- opline.op2 = class_node;
- opline.op2.u.EA.type = ZEND_FETCH_STATIC_MEMBER;
- *result = opline.result;
- 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.op_type == IS_CV) {
- init_op(&opline TSRMLS_CC);
- opline.opcode = ZEND_FETCH_W;
- opline.result.op_type = IS_VAR;
- opline.result.u.EA.type = 0;
- opline.result.u.var = get_temporary_variable(CG(active_op_array));
- opline.op1.op_type = IS_CONST;
- opline.op1.u.constant.type = IS_STRING;
- opline.op1.u.constant.value.str.val = estrdup(CG(active_op_array)->vars[opline_ptr->op1.u.var].name);
- opline.op1.u.constant.value.str.len = CG(active_op_array)->vars[opline_ptr->op1.u.var].name_len;
- SET_UNUSED(opline.op2);
- opline.op2 = class_node;
- opline.op2.u.EA.type = ZEND_FETCH_STATIC_MEMBER;
- opline_ptr->op1 = opline.result;
- zend_llist_prepend_element(fetch_list_ptr, &opline);
- } else {
- opline_ptr->op2 = class_node;
- opline_ptr->op2.u.EA.type = 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;
- init_op(&opline TSRMLS_CC);
- opline.opcode = ZEND_FETCH_DIM_W; /* the backpatching routine assumes W */
- opline.result.op_type = IS_VAR;
- opline.result.u.EA.type = 0;
- opline.result.u.var = get_temporary_variable(CG(active_op_array));
- opline.op1 = *parent;
- opline.op2 = *dim;
- opline.extended_value = ZEND_FETCH_STANDARD;
- *result = opline.result;
- zend_stack_top(&CG(bp_stack), (void **) &fetch_list_ptr);
- 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.op_type = IS_TMP_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->opcode = ZEND_PRINT;
- opline->op1 = *arg;
- SET_UNUSED(opline->op2);
- *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;
- 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 (modifiers->u.constant.value.lval & ZEND_ACC_ABSTRACT) {
- if(modifiers->u.constant.value.lval & ZEND_ACC_PRIVATE) {
- zend_error(E_COMPILE_ERROR, "%s function %s::%s() cannot be declared private", method_type, CG(active_class_entry)->name, function_name->u.constant.value.str.val);
- }
- 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(E_COMPILE_ERROR, "%s function %s::%s() cannot contain body", method_type, CG(active_class_entry)->name, function_name->u.constant.value.str.val);
- }
- } else {
- if (body->u.constant.value.lval == ZEND_ACC_ABSTRACT) {
- zend_error(E_COMPILE_ERROR, "Non-abstract method %s::%s() must contain body", CG(active_class_entry)->name, function_name->u.constant.value.str.val);
- }
- }
- }
- /* }}} */
- static zend_bool opline_is_fetch_this(const zend_op *opline TSRMLS_DC) /* {{{ */
- {
- if ((opline->opcode == ZEND_FETCH_W) && (opline->op1.op_type == IS_CONST)
- && (opline->op1.u.constant.type == IS_STRING)
- && (opline->op1.u.constant.value.str.len == (sizeof("this")-1))
- && !memcmp(opline->op1.u.constant.value.str.val, "this", sizeof("this"))) {
- return 1;
- } else {
- return 0;
- }
- }
- /* }}} */
- void zend_do_assign(znode *result, znode *variable, const 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.op_type == IS_CV &&
- opline->op1.u.var == value->u.var) {
- opline = get_next_op(CG(active_op_array) TSRMLS_CC);
- opline->opcode = ZEND_FETCH_R;
- opline->result.op_type = IS_VAR;
- opline->result.u.EA.type = 0;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->op1.op_type = IS_CONST;
- ZVAL_STRINGL(&opline->op1.u.constant,
- CG(active_op_array)->vars[value->u.var].name,
- CG(active_op_array)->vars[value->u.var].name_len, 1);
- SET_UNUSED(opline->op2);
- opline->op2.u.EA.type = ZEND_FETCH_LOCAL;
- 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.var == CG(active_op_array)->this_var) {
- zend_error(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.op_type == IS_VAR &&
- last_op->result.u.var == variable->u.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);
- *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.u.var = get_temporary_variable(CG(active_op_array));
- opline->op2.u.EA.type = 0;
- opline->op2.op_type = IS_VAR;
- SET_UNUSED(opline->result);
- *result = last_op->result;
- return;
- } else if (opline_is_fetch_this(last_op TSRMLS_CC)) {
- zend_error(E_COMPILE_ERROR, "Cannot re-assign $this");
- } else {
- break;
- }
- }
- n++;
- }
- }
- opline->opcode = ZEND_ASSIGN;
- opline->op1 = *variable;
- opline->op2 = *value;
- opline->result.op_type = IS_VAR;
- opline->result.u.EA.type = 0;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- *result = opline->result;
- }
- /* }}} */
- static inline zend_bool zend_is_function_or_method_call(const znode *variable) /* {{{ */
- {
- zend_uint type = variable->u.EA.type;
- return ((type & ZEND_PARSED_METHOD_CALL) || (type == ZEND_PARSED_FUNCTION_CALL));
- }
- /* }}} */
- 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.var == CG(active_op_array)->this_var) {
- zend_error(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(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->u.EA.type & ZEND_PARSED_NEW) {
- opline->extended_value = ZEND_RETURNS_NEW;
- } else {
- opline->extended_value = 0;
- }
- if (result) {
- opline->result.op_type = IS_VAR;
- opline->result.u.EA.type = 0;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- *result = opline->result;
- } else {
- /* SET_UNUSED(opline->result); */
- opline->result.u.EA.type |= EXT_TYPE_UNUSED;
- }
- opline->op1 = *lvar;
- opline->op2 = *rvar;
- }
- /* }}} */
- static inline void do_begin_loop(TSRMLS_D) /* {{{ */
- {
- zend_brk_cont_element *brk_cont_element;
- int parent;
- parent = CG(active_op_array)->current_brk_cont;
- CG(active_op_array)->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(active_op_array)->current_brk_cont].start = -1;
- }
- CG(active_op_array)->brk_cont_array[CG(active_op_array)->current_brk_cont].cont = cont_addr;
- CG(active_op_array)->brk_cont_array[CG(active_op_array)->current_brk_cont].brk = get_next_op_number(CG(active_op_array));
- CG(active_op_array)->current_brk_cont = CG(active_op_array)->brk_cont_array[CG(active_op_array)->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;
- opline->op1 = *expr;
- close_bracket_token->u.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.u.opline_num = while_token->u.opline_num;
- SET_UNUSED(opline->op1);
- SET_UNUSED(opline->op2);
- /* update while's conditional jmp */
- CG(active_op_array)->opcodes[close_bracket_token->u.opline_num].op2.u.opline_num = get_next_op_number(CG(active_op_array));
- do_end_loop(while_token->u.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;
- opline->op1 = *expr; /* the conditional expression */
- second_semicolon_token->u.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.u.opline_num = cond_start->u.opline_num;
- CG(active_op_array)->opcodes[second_semicolon_token->u.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.u.opline_num = second_semicolon_token->u.opline_num+1;
- CG(active_op_array)->opcodes[second_semicolon_token->u.opline_num].op2.u.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.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.op_type = IS_VAR;
- last_op->result.u.EA.type = 0;
- last_op->result.u.var = get_temporary_variable(CG(active_op_array));
- *result = last_op->result;
- return;
- }
- }
- opline = get_next_op(CG(active_op_array) TSRMLS_CC);
- opline->opcode = op;
- opline->op1 = *op1;
- SET_UNUSED(opline->op2);
- opline->result.op_type = IS_VAR;
- opline->result.u.EA.type = 0;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- *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.op_type = IS_TMP_VAR;
- last_op->result.u.var = get_temporary_variable(CG(active_op_array));
- *result = last_op->result;
- return;
- }
- }
- opline = get_next_op(CG(active_op_array) TSRMLS_CC);
- opline->opcode = op;
- opline->op1 = *op1;
- SET_UNUSED(opline->op2);
- opline->result.op_type = IS_TMP_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- *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;
- opline->op1 = *cond;
- closing_bracket_token->u.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.opline_num].op2.u.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.u.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->u.EA.type;
- if (type & ZEND_PARSED_METHOD_CALL) {
- zend_error(E_COMPILE_ERROR, "Can't use method return value in write context");
- }
- if (type == ZEND_PARSED_FUNCTION_CALL) {
- zend_error(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.u.var;
- if (CG(active_op_array)->this_var == -1) {
- CG(active_op_array)->this_var = lookup_cv(CG(active_op_array), Z_STRVAL(opline_ptr->op1.u.constant), Z_STRLEN(opline_ptr->op1.u.constant));
- } else {
- efree(Z_STRVAL(opline_ptr->op1.u.constant));
- }
- le = le->next;
- if (variable->op_type == IS_VAR &&
- variable->u.var == this_var) {
- variable->op_type = IS_CV;
- variable->u.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), estrndup("this", sizeof("this")-1), sizeof("this")-1);
- }
- }
- while (le) {
- opline_ptr = (zend_op *)le->data;
- opline = get_next_op(CG(active_op_array) TSRMLS_CC);
- memcpy(opline, opline_ptr, sizeof(zend_op));
- if (opline->op1.op_type == IS_VAR &&
- opline->op1.u.var == this_var) {
- opline->op1.op_type = IS_CV;
- opline->op1.u.var = CG(active_op_array)->this_var;
- }
- switch (type) {
- case BP_VAR_R:
- if (opline->opcode == ZEND_FETCH_DIM_W && opline->op2.op_type == IS_UNUSED) {
- zend_error(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.op_type == IS_UNUSED) {
- zend_error(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.op_type == IS_UNUSED) {
- zend_error(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 */
- efree(Z_STRVAL(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 */
- efree(Z_STRVAL(op2->u.constant));
- return;
- }
- if (op1) {
- opline->op1 = *op1;
- opline->result = *op1;
- } else {
- SET_UNUSED(opline->op1);
- opline->result.op_type = IS_TMP_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- }
- opline->op2 = *op2;
- *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) {
- opline->op1 = *op1;
- opline->result = *op1;
- } else {
- SET_UNUSED(opline->op1);
- opline->result.op_type = IS_TMP_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- }
- opline->op2 = *op2;
- *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;
- 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.op_type == IS_VAR
- && opline->result.u.var == op1->u.var) {
- opline->result.u.EA.type |= EXT_TYPE_UNUSED;
- } else {
- while (opline>CG(active_op_array)->opcodes) {
- if (opline->opcode == ZEND_FETCH_DIM_R
- && opline->op1.op_type == IS_VAR
- && opline->op1.u.var == op1->u.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.op_type==IS_VAR
- && opline->result.u.var == op1->u.var) {
- if (opline->opcode == ZEND_NEW) {
- opline->result.u.EA.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(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(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(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(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(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;
- char *name = function_name->u.constant.value.str.val;
- int name_len = function_name->u.constant.value.str.len;
- int function_begin_line = function_token->u.opline_num;
- zend_uint fn_flags;
- char *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(E_COMPILE_ERROR, "Access type for interface method %s::%s() must be omitted", CG(active_class_entry)->name, function_name->u.constant.value.str.val);
- }
- 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 : "", is_method ? "::" : "", Z_STRVAL(function_name->u.constant));
- }
- function_token->u.op_array = CG(active_op_array);
- lcname = zend_str_tolower_dup(name, name_len);
- 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;
- op_array.return_reference = return_reference;
- op_array.fn_flags |= fn_flags;
- op_array.pass_rest_by_reference = 0;
- 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) {
- if (zend_hash_add(&CG(active_class_entry)->function_table, lcname, name_len+1, &op_array, sizeof(zend_op_array), (void **) &CG(active_op_array)) == FAILURE) {
- zend_error(E_COMPILE_ERROR, "Cannot redeclare %s::%s()", CG(active_class_entry)->name, name);
- }
- 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, 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, 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, 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, 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, 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, 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, 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 {
- char *class_lcname;
-
- class_lcname = do_alloca(CG(active_class_entry)->name_length + 1, use_heap);
- zend_str_tolower_copy(class_lcname, CG(active_class_entry)->name, CG(active_class_entry)->name_length);
- /* Improve after RC: cache the lowercase class name */
- if ((CG(active_class_entry)->name_length == name_len) && (!memcmp(class_lcname, lcname, 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, 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);
- }
- CG(active_class_entry)->constructor = (zend_function *) CG(active_op_array);
- } else if ((name_len == sizeof(ZEND_DESTRUCTOR_FUNC_NAME)-1) && (!memcmp(lcname, 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, 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, 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, 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, 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, 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, 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, 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, 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 (!(fn_flags & ZEND_ACC_STATIC)) {
- CG(active_op_array)->fn_flags |= ZEND_ACC_ALLOW_STATIC;
- }
- free_alloca(class_lcname, use_heap);
- }
- efree(lcname);
- } else {
- zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
- if (CG(current_namespace)) {
- /* Prefix function name with current namespcae name */
- znode tmp;
- tmp.u.constant = *CG(current_namespace);
- zval_copy_ctor(&tmp.u.constant);
- zend_do_build_namespace_name(&tmp, &tmp, function_name TSRMLS_CC);
- op_array.function_name = Z_STRVAL(tmp.u.constant);
- efree(lcname);
- name_len = Z_STRLEN(tmp.u.constant);
- lcname = zend_str_tolower_dup(Z_STRVAL(tmp.u.constant), name_len);
- }
- opline->opcode = ZEND_DECLARE_FUNCTION;
- opline->op1.op_type = IS_CONST;
- build_runtime_defined_function_key(&opline->op1.u.constant, lcname, name_len TSRMLS_CC);
- opline->op2.op_type = IS_CONST;
- opline->op2.u.constant.type = IS_STRING;
- opline->op2.u.constant.value.str.val = lcname;
- opline->op2.u.constant.value.str.len = name_len;
- Z_SET_REFCOUNT(opline->op2.u.constant, 1);
- opline->extended_value = ZEND_DECLARE_FUNCTION;
- zend_hash_update(CG(function_table), opline->op1.u.constant.value.str.val, opline->op1.u.constant.value.str.len, &op_array, sizeof(zend_op_array), (void **) &CG(active_op_array));
- }
- 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 seperator to the switch and foreach stacks */
- 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));
- {
- /* Foreach stack separator */
- zend_op dummy_opline;
- dummy_opline.result.op_type = IS_UNUSED;
- dummy_opline.op1.op_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(active_op_array)->doc_comment_len = CG(doc_comment_len);
- CG(doc_comment) = NULL;
- CG(doc_comment_len) = 0;
- }
- zend_stack_push(&CG(labels_stack), (void *) &CG(labels), sizeof(HashTable*));
- CG(labels) = NULL;
- }
- /* }}} */
- void zend_do_begin_lambda_function_declaration(znode *result, znode *function_token, int return_reference 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, 1);
- zend_do_begin_function_declaration(function_token, &function_name, 0, return_reference, NULL TSRMLS_CC);
- result->op_type = IS_TMP_VAR;
- result->u.var = get_temporary_variable(current_op_array);
- current_op = ¤t_op_array->opcodes[current_op_number];
- current_op->opcode = ZEND_DECLARE_LAMBDA_FUNCTION;
- zval_dtor(¤t_op->op2.u.constant);
- ZVAL_LONG(¤t_op->op2.u.constant, zend_hash_func(Z_STRVAL(current_op->op1.u.constant), Z_STRLEN(current_op->op1.u.constant)));
- current_op->result = *result;
- 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(TSRMLS_C);
- 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 = strlen(CG(active_op_array)->function_name);
- zend_str_tolower_copy(lcname, CG(active_op_array)->function_name, 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(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 seperators */
- zend_stack_del_top(&CG(switch_cond_stack));
- zend_stack_del_top(&CG(foreach_copy_stack));
- }
- /* }}} */
- void zend_do_receive_arg(zend_uchar op, const znode *var, const znode *offset, const znode *initialization, znode *class_type, const znode *varname, zend_uchar pass_by_reference TSRMLS_DC) /* {{{ */
- {
- zend_op *opline;
- zend_arg_info *cur_arg_info;
- if (class_type->op_type == IS_CONST &&
- Z_TYPE(class_type->u.constant) == IS_STRING &&
- Z_STRLEN(class_type->u.constant) == 0) {
- /* Usage of namespace as class name not in namespace */
- zval_dtor(&class_type->u.constant);
- zend_error(E_COMPILE_ERROR, "Cannot use 'namespace' as a class name");
- return;
- }
- if (var->op_type == IS_CV &&
- var->u.var == CG(active_op_array)->this_var &&
- (CG(active_op_array)->fn_flags & ZEND_ACC_STATIC) == 0) {
- zend_error(E_COMPILE_ERROR, "Cannot re-assign $this");
- } else if (var->op_type == IS_VAR &&
- CG(active_op_array)->scope &&
- ((CG(active_op_array)->fn_flags & ZEND_ACC_STATIC) == 0) &&
- (Z_TYPE(varname->u.constant) == IS_STRING) &&
- (Z_STRLEN(varname->u.constant) == sizeof("this")-1) &&
- (memcmp(Z_STRVAL(varname->u.constant), "this", sizeof("this")) == 0)) {
- zend_error(E_COMPILE_ERROR, "Cannot re-assign $this");
- }
- opline = get_next_op(CG(active_op_array) TSRMLS_CC);
- CG(active_op_array)->num_args++;
- opline->opcode = op;
- opline->result = *var;
- opline->op1 = *offset;
- if (op == ZEND_RECV_INIT) {
- opline->op2 = *initialization;
- } else {
- CG(active_op_array)->required_num_args = CG(active_op_array)->num_args;
- SET_UNUSED(opline->op2);
- }
- 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 = estrndup(varname->u.constant.value.str.val, varname->u.constant.value.str.len);
- cur_arg_info->name_len = varname->u.constant.value.str.len;
- cur_arg_info->array_type_hint = 0;
- cur_arg_info->allow_null = 1;
- cur_arg_info->pass_by_reference = pass_by_reference;
- 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_STRING) {
- 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, &opline->extended_value, 1 TSRMLS_CC);
- }
- cur_arg_info->class_name = class_type->u.constant.value.str.val;
- cur_arg_info->class_name_len = class_type->u.constant.value.str.len;
- 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"))) {
- cur_arg_info->allow_null = 1;
- } else {
- zend_error(E_COMPILE_ERROR, "Default value for parameters with a class type hint can only be NULL");
- }
- }
- } else {
- cur_arg_info->array_type_hint = 1;
- cur_arg_info->class_name = NULL;
- cur_arg_info->class_name_len = 0;
- 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"))) {
- 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(E_COMPILE_ERROR, "Default value for parameters with array type hint can only be an array or NULL");
- }
- }
- }
- }
- opline->result.u.EA.type |= EXT_TYPE_UNUSED;
- }
- /* }}} */
- int zend_do_begin_function_call(znode *function_name, zend_bool check_namespace TSRMLS_DC) /* {{{ */
- {
- zend_function *function;
- char *lcname;
- char *is_compound = memchr(Z_STRVAL(function_name->u.constant), '\\', Z_STRLEN(function_name->u.constant));
- zend_resolve_non_class_name(function_name, check_namespace TSRMLS_CC);
- if (check_namespace && CG(current_namespace) && !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 = zend_str_tolower_dup(function_name->u.constant.value.str.val, function_name->u.constant.value.str.len);
- if ((zend_hash_find(CG(function_table), lcname, function_name->u.constant.value.str.len+1, (void **) &function)==FAILURE) ||
- ((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 */
- }
- efree(function_name->u.constant.value.str.val);
- function_name->u.constant.value.str.val = lcname;
-
- zend_stack_push(&CG(function_call_stack), (void *) &function, sizeof(zend_function *));
- 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.op_type == IS_CONST) && (last_op->op2.u.constant.type == IS_STRING) && (last_op->op2.u.constant.value.str.len == sizeof(ZEND_CLONE_FUNC_NAME)-1)
- && !zend_binary_strcasecmp(last_op->op2.u.constant.value.str.val, last_op->op2.u.constant.value.str.len, ZEND_CLONE_FUNC_NAME, sizeof(ZEND_CLONE_FUNC_NAME)-1)) {
- zend_error(E_COMPILE_ERROR, "Cannot call __clone() method on objects - use 'clone $obj' instead");
- }
- if (last_op->opcode == ZEND_FETCH_OBJ_R) {
- last_op->opcode = ZEND_INIT_METHOD_CALL;
- SET_UNUSED(last_op->result);
- 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->op2 = *left_bracket;
- if (opline->op2.op_type == IS_CONST) {
- opline->op1.op_type = IS_CONST;
- Z_TYPE(opline->op1.u.constant) = IS_STRING;
- Z_STRVAL(opline->op1.u.constant) = zend_str_tolower_dup(Z_STRVAL(opline->op2.u.constant), Z_STRLEN(opline->op2.u.constant));
- Z_STRLEN(opline->op1.u.constant) = Z_STRLEN(opline->op2.u.constant);
- opline->extended_value = zend_hash_func(Z_STRVAL(opline->op1.u.constant), Z_STRLEN(opline->op1.u.constant) + 1);
- } else {
- opline->extended_value = 0;
- SET_UNUSED(opline->op1);
- }
- }
- zend_stack_push(&CG(function_call_stack), (void *) &ptr, sizeof(zend_function *));
- 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;
- opline->op1 = *expr;
- SET_UNUSED(opline->op2);
- opline->result.op_type = IS_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- *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, *opline2;
- opline = get_next_op(CG(active_op_array) TSRMLS_CC);
- if (ns_call) {
- char *slash;
- int prefix_len, name_len;
- /* 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->op2 = *function_name;
- opline->extended_value = 0;
- opline->op1.op_type = IS_CONST;
- Z_TYPE(opline->op1.u.constant) = IS_STRING;
- Z_STRVAL(opline->op1.u.constant) = zend_str_tolower_dup(Z_STRVAL(opline->op2.u.constant), Z_STRLEN(opline->op2.u.constant));
- Z_STRLEN(opline->op1.u.constant) = Z_STRLEN(opline->op2.u.constant);
- opline->extended_value = zend_hash_func(Z_STRVAL(opline->op1.u.constant), Z_STRLEN(opline->op1.u.constant) + 1);
- slash = zend_memrchr(Z_STRVAL(opline->op1.u.constant), '\\', Z_STRLEN(opline->op1.u.constant));
- prefix_len = slash-Z_STRVAL(opline->op1.u.constant)+1;
- name_len = Z_STRLEN(opline->op1.u.constant)-prefix_len;
- opline2 = get_next_op(CG(active_op_array) TSRMLS_CC);
- opline2->opcode = ZEND_OP_DATA;
- opline2->op1.op_type = IS_CONST;
- Z_TYPE(opline2->op1.u.constant) = IS_LONG;
- if(!slash) {
- zend_error(E_CORE_ERROR, "Namespaced name %s should contain slash", Z_STRVAL(opline->op1.u.constant));
- }
- /* this is the length of namespace prefix */
- Z_LVAL(opline2->op1.u.constant) = prefix_len;
- /* this is the hash of the non-prefixed part, lowercased */
- opline2->extended_value = zend_hash_func(slash+1, name_len+1);
- SET_UNUSED(opline2->op2);
- } else {
- opline->opcode = ZEND_INIT_FCALL_BY_NAME;
- opline->op2 = *function_name;
- if (opline->op2.op_type == IS_CONST) {
- opline->op1.op_type = IS_CONST;
- Z_TYPE(opline->op1.u.constant) = IS_STRING;
- Z_STRVAL(opline->op1.u.constant) = zend_str_tolower_dup(Z_STRVAL(opline->op2.u.constant), Z_STRLEN(opline->op2.u.constant));
- Z_STRLEN(opline->op1.u.constant) = Z_STRLEN(opline->op2.u.constant);
- opline->extended_value = zend_hash_func(Z_STRVAL(opline->op1.u.constant), Z_STRLEN(opline->op1.u.constant) + 1);
- } else {
- opline->extended_value = 0;
- SET_UNUSED(opline->op1);
- }
- }
- zend_stack_push(&CG(function_call_stack), (void *) &ptr, sizeof(zend_function *));
- zend_do_extended_fcall_begin(TSRMLS_C);
- }
- /* }}} */
- void zend_resolve_non_class_name(znode *element_name, zend_bool check_namespace TSRMLS_DC) /* {{{ */
- {
- znode tmp;
- int len;
- zval **ns;
- char *lcname, *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 (compound && CG(current_import)) {
- len = compound - Z_STRVAL(element_name->u.constant);
- lcname = zend_str_tolower_dup(Z_STRVAL(element_name->u.constant), len);
- /* Check if first part of compound name is an import name */
- if (zend_hash_find(CG(current_import), lcname, len+1, (void**)&ns) == SUCCESS) {
- /* Substitute import name */
- tmp.op_type = IS_CONST;
- tmp.u.constant = **ns;
- zval_copy_ctor(&tmp.u.constant);
- 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;
- efree(lcname);
- return;
- }
- efree(lcname);
- }
- if (CG(current_namespace)) {
- tmp = *element_name;
- Z_STRLEN(tmp.u.constant) = sizeof("\\")-1 + Z_STRLEN(element_name->u.constant) + Z_STRLEN_P(CG(current_namespace));
- Z_STRVAL(tmp.u.constant) = (char *) emalloc(Z_STRLEN(tmp.u.constant)+1);
- memcpy(Z_STRVAL(tmp.u.constant), Z_STRVAL_P(CG(current_namespace)), Z_STRLEN_P(CG(current_namespace)));
- memcpy(&(Z_STRVAL(tmp.u.constant)[Z_STRLEN_P(CG(current_namespace))]), "\\", sizeof("\\")-1);
- memcpy(&(Z_STRVAL(tmp.u.constant)[Z_STRLEN_P(CG(current_namespace)) + sizeof("\\")-1]), Z_STRVAL(element_name->u.constant), Z_STRLEN(element_name->u.constant)+1);
- STR_FREE(Z_STRVAL(element_name->u.constant));
- *element_name = tmp;
- }
- }
- /* }}} */
- void zend_resolve_class_name(znode *class_name, ulong *fetch_type, int check_ns_name TSRMLS_DC) /* {{{ */
- {
- char *compound;
- char *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 */
- Z_STRLEN(class_name->u.constant) -= 1;
- memmove(Z_STRVAL(class_name->u.constant), Z_STRVAL(class_name->u.constant)+1, Z_STRLEN(class_name->u.constant)+1);
- Z_STRVAL(class_name->u.constant) = erealloc(
- Z_STRVAL(class_name->u.constant),
- Z_STRLEN(class_name->u.constant) + 1);
- if (ZEND_FETCH_CLASS_DEFAULT != zend_get_class_fetch_type(Z_STRVAL(class_name->u.constant), Z_STRLEN(class_name->u.constant))) {
- zend_error(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 = zend_str_tolower_dup(Z_STRVAL(class_name->u.constant), len);
- /* Check if first part of compound name is an import name */
- if (zend_hash_find(CG(current_import), lcname, len+1, (void**)&ns) == SUCCESS) {
- /* Substitute import name */
- tmp.op_type = IS_CONST;
- tmp.u.constant = **ns;
- zval_copy_ctor(&tmp.u.constant);
- 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;
- efree(lcname);
- return;
- }
- efree(lcname);
- }
- /* Here name is not prefixed with \ and not imported */
- if (CG(current_namespace)) {
- tmp.op_type = IS_CONST;
- tmp.u.constant = *CG(current_namespace);
- zval_copy_ctor(&tmp.u.constant);
- zend_do_build_namespace_name(&tmp, &tmp, class_name TSRMLS_CC);
- *class_name = tmp;
- }
- }
- } else if (CG(current_import) || CG(current_namespace)) {
- /* this is a plain name (without \) */
- lcname = zend_str_tolower_dup(Z_STRVAL(class_name->u.constant), Z_STRLEN(class_name->u.constant));
- if (CG(current_import) &&
- zend_hash_find(CG(current_import), lcname, Z_STRLEN(class_name->u.constant)+1, (void**)&ns) == SUCCESS) {
- /* The given name is an import name. Substitute it. */
- zval_dtor(&class_name->u.constant);
- class_name->u.constant = **ns;
- zval_copy_ctor(&class_name->u.constant);
- } else if (CG(current_namespace)) {
- /* plain name, no import - prepend current namespace to it */
- tmp.op_type = IS_CONST;
- tmp.u.constant = *CG(current_namespace);
- zval_copy_ctor(&tmp.u.constant);
- zend_do_build_namespace_name(&tmp, &tmp, class_name TSRMLS_CC);
- *class_name = tmp;
- }
- efree(lcname);
- }
- }
- /* }}} */
- void zend_do_fetch_class(znode *result, znode *class_name TSRMLS_DC) /* {{{ */
- {
- long fetch_class_op_number;
- zend_op *opline;
- if (class_name->op_type == IS_CONST &&
- Z_TYPE(class_name->u.constant) == IS_STRING &&
- Z_STRLEN(class_name->u.constant) == 0) {
- /* Usage of namespace as class name not in namespace */
- zval_dtor(&class_name->u.constant);
- zend_error(E_COMPILE_ERROR, "Cannot use 'namespace' as a class name");
- return;
- }
- 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_GLOBAL;
- CG(catch_begin) = fetch_class_op_number;
- if (class_name->op_type == IS_CONST) {
- int fetch_type;
- fetch_type = zend_get_class_fetch_type(class_name->u.constant.value.str.val, class_name->u.constant.value.str.len);
- 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, &opline->extended_value, 0 TSRMLS_CC);
- opline->op2 = *class_name;
- break;
- }
- } else {
- opline->op2 = *class_name;
- }
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->result.u.EA.type = opline->extended_value;
- opline->result.op_type = IS_VAR; /* FIXME: Hack so that INIT_FCALL_BY_NAME still knows this is a class */
- *result = opline->result;
- }
- /* }}} */
- void zend_do_label(znode *label TSRMLS_DC) /* {{{ */
- {
- zend_op_array *oparray = CG(active_op_array);
- zend_label dest;
- if (!CG(labels)) {
- ALLOC_HASHTABLE(CG(labels));
- zend_hash_init(CG(labels), 4, NULL, NULL, 0);
- }
- dest.brk_cont = oparray->current_brk_cont;
- dest.opline_num = get_next_op_number(oparray);
- if (zend_hash_add(CG(labels), Z_STRVAL(label->u.constant), Z_STRLEN(label->u.constant) + 1, (void**)&dest, sizeof(zend_label), NULL) == FAILURE) {
- zend_error(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;
- if (CG(labels) == NULL ||
- zend_hash_find(CG(labels), Z_STRVAL(opline->op2.u.constant), Z_STRLEN(opline->op2.u.constant)+1, (void**)&dest) == FAILURE) {
- if (pass2) {
- CG(in_compilation) = 1;
- CG(active_op_array) = op_array;
- CG(zend_lineno) = opline->lineno;
- zend_error(E_COMPILE_ERROR, "'goto' to undefined label '%s'", Z_STRVAL(opline->op2.u.constant));
- } else {
- /* Label is not defined. Delay to pass 2. */
- INC_BPC(op_array);
- return;
- }
- }
- opline->op1.u.opline_num = dest->opline_num;
- zval_dtor(&opline->op2.u.constant);
- /* 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(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(&opline->op2.u.constant, 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(active_op_array)->current_brk_cont;
- SET_UNUSED(opline->op1);
- opline->op2 = *label;
- zend_resolve_goto_label(CG(active_op_array), opline, 0 TSRMLS_CC);
- }
- /* }}} */
- void zend_release_labels(TSRMLS_D) /* {{{ */
- {
- if (CG(labels)) {
- zend_hash_destroy(CG(labels));
- FREE_HASHTABLE(CG(labels));
- }
- if (!zend_stack_is_empty(&CG(labels_stack))) {
- HashTable **pht;
- zend_stack_top(&CG(labels_stack), (void**)&pht);
- CG(labels) = *pht;
- zend_stack_del_top(&CG(labels_stack));
- } else {
- CG(labels) = NULL;
- }
- }
- /* }}} */
- 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) {
- length = sizeof("::")-1 + result->u.constant.value.str.len + name->u.constant.value.str.len;
- result->u.constant.value.str.val = erealloc(result->u.constant.value.str.val, length+1);
- memcpy(&result->u.constant.value.str.val[result->u.constant.value.str.len], "::", sizeof("::")-1);
- memcpy(&result->u.constant.value.str.val[result->u.constant.value.str.len + sizeof("::")-1], name->u.constant.value.str.val, name->u.constant.value.str.len+1);
- STR_FREE(name->u.constant.value.str.val);
- result->u.constant.value.str.len = length;
- } else {
- length = sizeof("\\")-1 + result->u.constant.value.str.len + name->u.constant.value.str.len;
- result->u.constant.value.str.val = erealloc(result->u.constant.value.str.val, length+1);
- memcpy(&result->u.constant.value.str.val[result->u.constant.value.str.len], "\\", sizeof("\\")-1);
- memcpy(&result->u.constant.value.str.val[result->u.constant.value.str.len + sizeof("\\")-1], name->u.constant.value.str.val, name->u.constant.value.str.len+1);
- STR_FREE(name->u.constant.value.str.val);
- result->u.constant.value.str.len = length;
- }
- }
- /* }}} */
- 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;
- ulong fetch_type = 0;
- if (method_name->op_type == IS_CONST) {
- char *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);
- SET_UNUSED(*method_name);
- }
- 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))) {
- fetch_type = ZEND_FETCH_CLASS_GLOBAL;
- zend_resolve_class_name(class_name, &fetch_type, 1 TSRMLS_CC);
- class_node = *class_name;
- } else {
- zend_do_fetch_class(&class_node, class_name TSRMLS_CC);
- }
- opline = get_next_op(CG(active_op_array) TSRMLS_CC);
- opline->opcode = ZEND_INIT_STATIC_METHOD_CALL;
- opline->op1 = class_node;
- opline->op2 = *method_name;
- zend_stack_push(&CG(function_call_stack), (void *) &ptr, sizeof(zend_function *));
- 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 {
- opline = get_next_op(CG(active_op_array) TSRMLS_CC);
- if (!is_method && !is_dynamic_fcall && function_name->op_type==IS_CONST) {
- opline->opcode = ZEND_DO_FCALL;
- opline->op1 = *function_name;
- ZVAL_LONG(&opline->op2.u.constant, zend_hash_func(Z_STRVAL(function_name->u.constant), Z_STRLEN(function_name->u.constant) + 1));
- } else {
- opline->opcode = ZEND_DO_FCALL_BY_NAME;
- SET_UNUSED(opline->op1);
- }
- }
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->result.op_type = IS_VAR;
- *result = opline->result;
- SET_UNUSED(opline->op2);
- zend_stack_del_top(&CG(function_call_stack));
- opline->extended_value = 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;
- 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(E_DEPRECATED,
- "Call-time pass-by-reference has been deprecated; "
- "If you would like to pass it by reference, modify the declaration of %s(). "
- "If you would like to enable call-time pass-by-reference, you can set "
- "allow_call_time_pass_reference to true in your INI file", function_ptr->common.function_name);
- } else {
- zend_error(E_DEPRECATED, "Call-time pass-by-reference has been deprecated");
- }
- }
- if (function_ptr) {
- if (ARG_MAY_BE_SENT_BY_REF(function_ptr, (zend_uint) offset)) {
- if (param->op_type & (IS_VAR|IS_CV)) {
- send_by_reference = 1;
- 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 | ZEND_ARG_SEND_SILENT;
- }
- } else {
- op = ZEND_SEND_VAL;
- send_by_reference = 0;
- }
- } else {
- send_by_reference = ARG_SHOULD_BE_SENT_BY_REF(function_ptr, (zend_uint) offset) ? ZEND_ARG_SEND_BY_REF : 0;
- }
- } else {
- send_by_reference = 0;
- }
- 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(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;
- opline->op1 = *param;
- opline->op2.u.opline_num = offset;
- SET_UNUSED(opline->op2);
- }
- /* }}} */
- 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;
- opline->op1 = switch_entry->cond;
- SET_UNUSED(opline->op2);
- opline->extended_value = 0;
- return 0;
- }
- /* }}} */
- static int generate_free_foreach_copy(const zend_op *foreach_copy TSRMLS_DC) /* {{{ */
- {
- zend_op *opline;
- /* If we reach the seperator then stop applying the stack */
- if (foreach_copy->result.op_type == IS_UNUSED && foreach_copy->op1.op_type == IS_UNUSED) {
- return 1;
- }
- opline = get_next_op(CG(active_op_array) TSRMLS_CC);
- opline->opcode = (foreach_copy->result.op_type == IS_TMP_VAR) ? ZEND_FREE : ZEND_SWITCH_FREE;
- opline->op1 = foreach_copy->result;
- SET_UNUSED(opline->op2);
- opline->extended_value = 1;
- if (foreach_copy->op1.op_type != IS_UNUSED) {
- opline = get_next_op(CG(active_op_array) TSRMLS_CC);
- opline->opcode = (foreach_copy->op1.op_type == IS_TMP_VAR) ? ZEND_FREE : ZEND_SWITCH_FREE;
- opline->op1 = foreach_copy->op1;
- SET_UNUSED(opline->op2);
- opline->extended_value = 0;
- }
- return 0;
- }
- /* }}} */
- void zend_do_return(znode *expr, int do_end_vparse TSRMLS_DC) /* {{{ */
- {
- zend_op *opline;
- int start_op_number, end_op_number;
- if (do_end_vparse) {
- if (CG(active_op_array)->return_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].op1.u.EA.type = EXT_TYPE_FREE_ON_RETURN;
- start_op_number++;
- }
- opline = get_next_op(CG(active_op_array) TSRMLS_CC);
- opline->opcode = ZEND_RETURN;
- if (expr) {
- opline->op1 = *expr;
- if (do_end_vparse && zend_is_function_or_method_call(expr)) {
- opline->extended_value = ZEND_RETURNS_FUNCTION;
- }
- } else {
- opline->op1.op_type = IS_CONST;
- INIT_ZVAL(opline->op1.u.constant);
- }
- SET_UNUSED(opline->op2);
- }
- /* }}} */
- 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;
- 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.opline_num = get_next_op_number(CG(active_op_array));
- }
- /* }}} */
- void zend_initialize_try_catch_element(const znode *try_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);
- zend_add_catch_element(try_token->u.opline_num, get_next_op_number(CG(active_op_array)) TSRMLS_CC);
- }
- /* }}} */
- 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.opline_num == -1) {
- CG(active_op_array)->opcodes[first_catch->u.opline_num].op1.u.EA.type = 1;
- CG(active_op_array)->opcodes[first_catch->u.opline_num].extended_value = get_next_op_number(CG(active_op_array));
- } else {
- CG(active_op_array)->opcodes[last_additional_catch->u.opline_num].op1.u.EA.type = 1;
- CG(active_op_array)->opcodes[last_additional_catch->u.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.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_begin_catch(znode *try_token, znode *class_name, const znode *catch_var, znode *first_catch TSRMLS_DC) /* {{{ */
- {
- long catch_op_number;
- zend_op *opline;
- znode catch_class;
- zend_do_fetch_class(&catch_class, class_name TSRMLS_CC);
- catch_op_number = get_next_op_number(CG(active_op_array));
- if (catch_op_number > 0) {
- opline = &CG(active_op_array)->opcodes[catch_op_number-1];
- if (opline->opcode == ZEND_FETCH_CLASS) {
- opline->extended_value |= ZEND_FETCH_CLASS_NO_AUTOLOAD;
- }
- }
- if (first_catch) {
- first_catch->u.opline_num = catch_op_number;
- }
- opline = get_next_op(CG(active_op_array) TSRMLS_CC);
- opline->opcode = ZEND_CATCH;
- opline->op1 = catch_class;
- /* SET_UNUSED(opline->op1); */ /* FIXME: Define IS_CLASS or something like that */
- opline->op2.op_type = IS_CV;
- opline->op2.u.var = lookup_cv(CG(active_op_array), catch_var->u.constant.value.str.val, catch_var->u.constant.value.str.len);
- opline->op2.u.EA.type = 0;
- opline->op1.u.EA.type = 0; /* 1 means it's the last catch in the block */
- try_token->u.opline_num = catch_op_number;
- }
- /* }}} */
- void zend_do_end_catch(const znode *try_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[try_token->u.opline_num].extended_value = get_next_op_number(CG(active_op_array));
- }
- /* }}} */
- 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;
- 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;
- zval *tmp_zval;
- 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, (copy_ctor_func_t) zval_add_ref, (void *) &tmp_zval, sizeof(zval *));
- }
- }
- }
- /* }}} */
- static void do_inherit_parent_constructor(zend_class_entry *ce) /* {{{ */
- {
- zend_function *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, ce->parent->constructor->common.function_name,
- ce->name, ce->constructor->common.function_name
- );
- }
- return;
- }
- if (zend_hash_find(&ce->parent->function_table, ZEND_CONSTRUCTOR_FUNC_NAME, sizeof(ZEND_CONSTRUCTOR_FUNC_NAME), (void **)&function)==SUCCESS) {
- /* inherit parent's constructor */
- zend_hash_update(&ce->function_table, ZEND_CONSTRUCTOR_FUNC_NAME, sizeof(ZEND_CONSTRUCTOR_FUNC_NAME), function, sizeof(zend_function), NULL);
- function_add_ref(function);
- } else {
- /* Don't inherit the old style constructor if we already have the new style constructor */
- char *lc_class_name;
- char *lc_parent_class_name;
- lc_class_name = zend_str_tolower_dup(ce->name, ce->name_length);
- if (!zend_hash_exists(&ce->function_table, lc_class_name, ce->name_length+1)) {
- lc_parent_class_name = zend_str_tolower_dup(ce->parent->name, ce->parent->name_length);
- if (!zend_hash_exists(&ce->function_table, lc_parent_class_name, ce->parent->name_length+1) &&
- zend_hash_find(&ce->parent->function_table, lc_parent_class_name, ce->parent->name_length+1, (void **)&function)==SUCCESS) {
- if (function->common.fn_flags & ZEND_ACC_CTOR) {
- /* inherit parent's constructor */
- zend_hash_update(&ce->function_table, lc_parent_class_name, ce->parent->name_length+1, function, sizeof(zend_function), NULL);
- function_add_ref(function);
- }
- }
- efree(lc_parent_class_name);
- }
- efree(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(zend_function *function) /* {{{ */
- {
- /* 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(function);
- }
- /* }}} */
- static zend_bool zend_do_perform_implementation_check(const zend_function *fe, const zend_function *proto) /* {{{ */
- {
- zend_uint i;
- /* 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 */
- if ((fe->common.fn_flags & ZEND_ACC_CTOR) && (proto->common.scope->ce_flags & ZEND_ACC_INTERFACE) == 0) {
- 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;
- }
- if (fe->common.type != ZEND_USER_FUNCTION
- && proto->common.pass_rest_by_reference
- && !fe->common.pass_rest_by_reference) {
- return 0;
- }
- /* by-ref constraints on return values are covariant */
- if (proto->common.return_reference && !fe->common.return_reference) {
- return 0;
- }
- for (i=0; i < proto->common.num_args; i++) {
- if (ZEND_LOG_XOR(fe->common.arg_info[i].class_name, proto->common.arg_info[i].class_name)) {
- /* Only one has a type hint and the other one doesn't */
- return 0;
- }
- if (fe->common.arg_info[i].class_name
- && strcasecmp(fe->common.arg_info[i].class_name, proto->common.arg_info[i].class_name)!=0) {
- char *colon;
- if (fe->common.type != ZEND_USER_FUNCTION ||
- strchr(proto->common.arg_info[i].class_name, '\\') != NULL ||
- (colon = zend_memrchr(fe->common.arg_info[i].class_name, '\\', fe->common.arg_info[i].class_name_len)) == NULL ||
- strcasecmp(colon+1, proto->common.arg_info[i].class_name) != 0) {
- return 0;
- }
- }
- if (fe->common.arg_info[i].array_type_hint != proto->common.arg_info[i].array_type_hint) {
- /* Only one has an array type hint and the other one doesn't */
- return 0;
- }
- /* by-ref constraints on arguments are invariant */
- if (fe->common.arg_info[i].pass_by_reference != proto->common.arg_info[i].pass_by_reference) {
- return 0;
- }
- }
- if (proto->common.pass_rest_by_reference) {
- for (i=proto->common.num_args; i < fe->common.num_args; i++) {
- if (!fe->common.arg_info[i].pass_by_reference) {
- return 0;
- }
- }
- }
- return 1;
- }
- /* }}} */
- static zend_bool do_inherit_method_check(HashTable *child_function_table, zend_function *parent, const zend_hash_key *hash_key, zend_class_entry *child_ce) /* {{{ */
- {
- zend_uint child_flags;
- zend_uint parent_flags = parent->common.fn_flags;
- zend_function *child;
- TSRMLS_FETCH();
- if (zend_hash_quick_find(child_function_table, hash_key->arKey, hash_key->nKeyLength, hash_key->h, (void **) &child)==FAILURE) {
- 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 */
- }
- if (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(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(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(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(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(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(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)) {
- zend_error(E_COMPILE_ERROR, "Declaration of %s::%s() must be compatible with that of %s::%s()", ZEND_FN_SCOPE_NAME(child), child->common.function_name, ZEND_FN_SCOPE_NAME(child->common.prototype), child->common.prototype->common.function_name);
- }
- } else if (EG(error_reporting) & E_STRICT || EG(user_error_handler)) { /* Check E_STRICT (or custom error handler) before the check so that we save some time */
- if (!zend_do_perform_implementation_check(child, parent)) {
- zend_error(E_STRICT, "Declaration of %s::%s() should be compatible with that of %s::%s()", ZEND_FN_SCOPE_NAME(child), child->common.function_name, ZEND_FN_SCOPE_NAME(parent), parent->common.function_name);
- }
- }
- return 0;
- }
- /* }}} */
- static zend_bool do_inherit_property_access_check(HashTable *target_ht, zend_property_info *parent_info, const zend_hash_key *hash_key, zend_class_entry *ce) /* {{{ */
- {
- zend_property_info *child_info;
- zend_class_entry *parent_ce = ce->parent;
- if (parent_info->flags & (ZEND_ACC_PRIVATE|ZEND_ACC_SHADOW)) {
- if (zend_hash_quick_find(&ce->properties_info, hash_key->arKey, hash_key->nKeyLength, hash_key->h, (void **) &child_info)==SUCCESS) {
- child_info->flags |= ZEND_ACC_CHANGED;
- } else {
- zend_hash_quick_update(&ce->properties_info, hash_key->arKey, hash_key->nKeyLength, hash_key->h, parent_info, sizeof(zend_property_info), (void **) &child_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 (zend_hash_quick_find(&ce->properties_info, hash_key->arKey, hash_key->nKeyLength, hash_key->h, (void **) &child_info)==SUCCESS) {
- if ((parent_info->flags & ZEND_ACC_STATIC) != (child_info->flags & ZEND_ACC_STATIC)) {
- zend_error(E_COMPILE_ERROR, "Cannot redeclare %s%s::$%s as %s%s::$%s",
- (parent_info->flags & ZEND_ACC_STATIC) ? "static " : "non static ", parent_ce->name, hash_key->arKey,
- (child_info->flags & ZEND_ACC_STATIC) ? "static " : "non static ", ce->name, hash_key->arKey);
-
- }
- 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(E_COMPILE_ERROR, "Access level to %s::$%s must be %s (as in class %s)%s", ce->name, hash_key->arKey, zend_visibility_string(parent_info->flags), parent_ce->name, (parent_info->flags&ZEND_ACC_PUBLIC) ? "" : " or weaker");
- } else if (child_info->flags & ZEND_ACC_IMPLICIT_PUBLIC) {
- if (!(parent_info->flags & ZEND_ACC_IMPLICIT_PUBLIC)) {
- /* Explicitly copy the default value from the parent (if it has one) */
- zval **pvalue;
-
- if (zend_hash_quick_find(&parent_ce->default_properties, parent_info->name, parent_info->name_length+1, parent_info->h, (void **) &pvalue) == SUCCESS) {
- Z_ADDREF_PP(pvalue);
- zend_hash_quick_del(&ce->default_properties, child_info->name, child_info->name_length+1, parent_info->h);
- zend_hash_quick_update(&ce->default_properties, parent_info->name, parent_info->name_length+1, parent_info->h, pvalue, sizeof(zval *), NULL);
- }
- }
- return 1; /* Inherit from the parent */
- } else if ((child_info->flags & ZEND_ACC_PUBLIC) && (parent_info->flags & ZEND_ACC_PROTECTED)) {
- char *prot_name;
- int prot_name_length;
- zend_mangle_property_name(&prot_name, &prot_name_length, "*", 1, child_info->name, child_info->name_length, ce->type & ZEND_INTERNAL_CLASS);
- if (child_info->flags & ZEND_ACC_STATIC) {
- zval **prop;
- HashTable *ht;
- if (parent_ce->type != ce->type) {
- /* User class extends internal class */
- TSRMLS_FETCH();
- ht = CE_STATIC_MEMBERS(parent_ce);
- } else {
- ht = &parent_ce->default_static_members;
- }
- if (zend_hash_find(ht, prot_name, prot_name_length+1, (void**)&prop) == SUCCESS) {
- zend_hash_del(&ce->default_static_members, prot_name, prot_name_length+1);
- }
- } else {
- zend_hash_del(&ce->default_properties, prot_name, prot_name_length+1);
- }
- pefree(prot_name, ce->type & ZEND_INTERNAL_CLASS);
- }
- 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, iface->name);
- }
- if (ce == iface) {
- zend_error(E_ERROR, "Interface %s cannot implement itself", ce->name);
- }
- }
- /* }}} */
- 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);
- }
- }
- /* }}} */
- static int inherit_static_prop(zval **p TSRMLS_DC, int num_args, va_list args, const zend_hash_key *key) /* {{{ */
- {
- HashTable *target = va_arg(args, HashTable*);
- if (!zend_hash_quick_exists(target, key->arKey, key->nKeyLength, key->h)) {
- SEPARATE_ZVAL_TO_MAKE_IS_REF(p);
- if (zend_hash_quick_add(target, key->arKey, key->nKeyLength, key->h, p, sizeof(zval*), NULL) == SUCCESS) {
- Z_ADDREF_PP(p);
- }
- }
- return ZEND_HASH_APPLY_KEEP;
- }
- /* }}} */
- #define zval_property_ctor(parent_ce, ce) \
- ((copy_ctor_func_t) (((parent_ce)->type != (ce)->type) ? zval_shared_property_ctor : zval_add_ref))
- ZEND_API void zend_do_inheritance(zend_class_entry *ce, zend_class_entry *parent_ce TSRMLS_DC) /* {{{ */
- {
- if ((ce->ce_flags & ZEND_ACC_INTERFACE)
- && !(parent_ce->ce_flags & ZEND_ACC_INTERFACE)) {
- zend_error(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(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 */
- zend_hash_merge(&ce->default_properties, &parent_ce->default_properties, zval_property_ctor(parent_ce, ce), NULL, sizeof(zval *), 0);
- if (parent_ce->type != ce->type) {
- /* User class extends internal class */
- zend_update_class_constants(parent_ce TSRMLS_CC);
- zend_hash_apply_with_arguments(CE_STATIC_MEMBERS(parent_ce) TSRMLS_CC, (apply_func_args_t)inherit_static_prop, 1, &ce->default_static_members);
- } else {
- zend_hash_apply_with_arguments(&parent_ce->default_static_members TSRMLS_CC, (apply_func_args_t)inherit_static_prop, 1, &ce->default_static_members);
- }
- zend_hash_merge_ex(&ce->properties_info, &parent_ce->properties_info, (copy_ctor_func_t) (ce->type & ZEND_INTERNAL_CLASS ? zend_duplicate_property_info_internal : zend_duplicate_property_info), sizeof(zend_property_info), (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), NULL, sizeof(zval *), 0);
- zend_hash_merge_ex(&ce->function_table, &parent_ce->function_table, (copy_ctor_func_t) do_inherit_method, sizeof(zend_function), (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)) {
- /* The verification will be done in runtime by ZEND_VERIFY_ABSTRACT_CLASS */
- zend_verify_abstract_class(ce TSRMLS_CC);
- }
- }
- /* }}} */
- 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 (zend_hash_quick_find(child_constants_table, hash_key->arKey, hash_key->nKeyLength, hash_key->h, (void**)&old_constant) == SUCCESS) {
- if (*old_constant != *parent_constant) {
- zend_error(E_COMPILE_ERROR, "Cannot inherit previously-inherited or override constant %s from interface %s", hash_key->arKey, iface->name);
- }
- 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(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, sizeof(zval *), (merge_checker_func_t) do_inherit_constant_check, iface);
- zend_hash_merge_ex(&ce->function_table, &iface->function_table, (copy_ctor_func_t) do_inherit_method, sizeof(zend_function), (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 int do_bind_function(zend_op *opline, HashTable *function_table, zend_bool compile_time) /* {{{ */
- {
- zend_function *function;
- zend_hash_find(function_table, opline->op1.u.constant.value.str.val, opline->op1.u.constant.value.str.len, (void *) &function);
- if (zend_hash_add(function_table, opline->op2.u.constant.value.str.val, opline->op2.u.constant.value.str.len+1, function, sizeof(zend_function), NULL)==FAILURE) {
- int error_level = compile_time ? E_COMPILE_ERROR : E_ERROR;
- zend_function *old_function;
- if (zend_hash_find(function_table, opline->op2.u.constant.value.str.val, opline->op2.u.constant.value.str.len+1, (void *) &old_function)==SUCCESS
- && 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,
- old_function->op_array.filename,
- old_function->op_array.opcodes[0].lineno);
- } else {
- zend_error(error_level, "Cannot redeclare %s()", function->common.function_name);
- }
- return FAILURE;
- } else {
- (*function->op_array.refcount)++;
- function->op_array.static_variables = NULL; /* NULL out the unbound function */
- return SUCCESS;
- }
- }
- /* }}} */
- ZEND_API zend_class_entry *do_bind_class(const zend_op *opline, HashTable *class_table, zend_bool compile_time TSRMLS_DC) /* {{{ */
- {
- zend_class_entry *ce, **pce;
- if (zend_hash_find(class_table, opline->op1.u.constant.value.str.val, opline->op1.u.constant.value.str.len, (void **) &pce)==FAILURE) {
- zend_error(E_COMPILE_ERROR, "Internal Zend error - Missing class information for %s", opline->op1.u.constant.value.str.val);
- return NULL;
- } else {
- ce = *pce;
- }
- ce->refcount++;
- if (zend_hash_add(class_table, opline->op2.u.constant.value.str.val, opline->op2.u.constant.value.str.len+1, &ce, sizeof(zend_class_entry *), NULL)==FAILURE) {
- 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(E_COMPILE_ERROR, "Cannot redeclare class %s", ce->name);
- }
- return NULL;
- } else {
- if (!(ce->ce_flags & (ZEND_ACC_INTERFACE|ZEND_ACC_IMPLEMENT_INTERFACES))) {
- zend_verify_abstract_class(ce TSRMLS_CC);
- }
- return ce;
- }
- }
- /* }}} */
- ZEND_API zend_class_entry *do_bind_inherited_class(const zend_op *opline, HashTable *class_table, zend_class_entry *parent_ce, zend_bool compile_time TSRMLS_DC) /* {{{ */
- {
- zend_class_entry *ce, **pce;
- int found_ce;
- found_ce = zend_hash_find(class_table, opline->op1.u.constant.value.str.val, opline->op1.u.constant.value.str.len, (void **) &pce);
- if (found_ce == FAILURE) {
- 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(E_COMPILE_ERROR, "Cannot redeclare class %s", opline->op2.u.constant.value.str.val);
- }
- return NULL;
- } else {
- ce = *pce;
- }
- if (parent_ce->ce_flags & ZEND_ACC_INTERFACE) {
- zend_error(E_COMPILE_ERROR, "Class %s cannot extend from interface %s", ce->name, parent_ce->name);
- }
- zend_do_inheritance(ce, parent_ce TSRMLS_CC);
- ce->refcount++;
- /* Register the derived class */
- if (zend_hash_add(class_table, opline->op2.u.constant.value.str.val, opline->op2.u.constant.value.str.len+1, pce, sizeof(zend_class_entry *), NULL)==FAILURE) {
- zend_error(E_COMPILE_ERROR, "Cannot redeclare class %s", ce->name);
- }
- 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(opline, CG(function_table), 1) == FAILURE) {
- return;
- }
- table = CG(function_table);
- break;
- case ZEND_DECLARE_CLASS:
- if (do_bind_class(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 = &fetch_class_opline->op2.u.constant;
- zend_class_entry **pce;
- if ((zend_lookup_class(Z_STRVAL_P(parent_name), Z_STRLEN_P(parent_name), &pce TSRMLS_CC) == FAILURE) ||
- ((CG(compiler_options) & ZEND_COMPILE_IGNORE_INTERNAL_CLASSES) &&
- ((*pce)->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.u.opline_num;
- }
- *opline_num = opline - CG(active_op_array)->opcodes;
- opline->opcode = ZEND_DECLARE_INHERITED_CLASS_DELAYED;
- opline->result.op_type = IS_UNUSED;
- opline->result.u.opline_num = -1;
- }
- return;
- }
- if (do_bind_inherited_class(opline, CG(class_table), *pce, 1 TSRMLS_CC) == NULL) {
- return;
- }
- /* clear unnecessary ZEND_FETCH_CLASS opcode */
- zval_dtor(&fetch_class_opline->op2.u.constant);
- MAKE_NOP(fetch_class_opline);
- table = CG(class_table);
- break;
- }
- case ZEND_VERIFY_ABSTRACT_CLASS:
- case ZEND_ADD_INTERFACE:
- /* We currently don't early-bind classes that implement interfaces */
- return;
- default:
- zend_error(E_COMPILE_ERROR, "Invalid binding type");
- return;
- }
- zend_hash_del(table, opline->op1.u.constant.value.str.val, opline->op1.u.constant.value.str.len);
- zval_dtor(&opline->op1.u.constant);
- zval_dtor(&opline->op2.u.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 **pce;
- CG(in_compilation) = 1;
- while (opline_num != -1) {
- if (zend_lookup_class(Z_STRVAL(op_array->opcodes[opline_num-1].op2.u.constant), Z_STRLEN(op_array->opcodes[opline_num-1].op2.u.constant), &pce TSRMLS_CC) == SUCCESS) {
- do_bind_inherited_class(&op_array->opcodes[opline_num], EG(class_table), *pce, 1 TSRMLS_CC);
- }
- opline_num = op_array->opcodes[opline_num].result.u.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) {
- opline->result = *expr1;
- } else {
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->result.op_type = IS_TMP_VAR;
- }
- opline->op1 = *expr1;
- SET_UNUSED(opline->op2);
- op_token->u.opline_num = next_op_number;
- *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;
- opline->result = *result;
- opline->op1 = *expr2;
- SET_UNUSED(opline->op2);
- CG(active_op_array)->opcodes[op_token->u.opline_num].op2.u.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) {
- opline->result = *expr1;
- } else {
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->result.op_type = IS_TMP_VAR;
- }
- opline->op1 = *expr1;
- SET_UNUSED(opline->op2);
- op_token->u.opline_num = next_op_number;
- *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;
- opline->result = *result;
- opline->op1 = *expr2;
- SET_UNUSED(opline->op2);
- CG(active_op_array)->opcodes[op_token->u.opline_num].op2.u.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;
- opline->op1 = *expr;
- opline->op2.u.opline_num = do_token->u.opline_num;
- SET_UNUSED(opline->op2);
- do_end_loop(expr_open_bracket->u.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.u.opline_num = CG(active_op_array)->current_brk_cont;
- SET_UNUSED(opline->op1);
- if (expr) {
- opline->op2 = *expr;
- } else {
- Z_TYPE(opline->op2.u.constant) = IS_LONG;
- Z_LVAL(opline->op2.u.constant) = 1;
- INIT_PZVAL(&opline->op2.u.constant);
- opline->op2.op_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.u.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.opline_num].op1.u.opline_num = next_op_number;
- }
- /* remember break/continue loop information */
- CG(active_op_array)->brk_cont_array[CG(active_op_array)->current_brk_cont].cont = CG(active_op_array)->brk_cont_array[CG(active_op_array)->current_brk_cont].brk = get_next_op_number(CG(active_op_array));
- CG(active_op_array)->current_brk_cont = CG(active_op_array)->brk_cont_array[CG(active_op_array)->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;
- 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.u.var = switch_entry_ptr->control_var;
- opline->result.op_type = IS_TMP_VAR;
- opline->op1 = switch_entry_ptr->cond;
- opline->op2 = *case_expr;
- if (opline->op1.op_type == IS_CONST) {
- zval_copy_ctor(&opline->op1.u.constant);
- }
- 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;
- opline->op1 = result;
- SET_UNUSED(opline->op2);
- case_token->u.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.opline_num].op1.u.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.opline_num = next_op_number;
- switch (CG(active_op_array)->opcodes[case_token->u.opline_num].opcode) {
- case ZEND_JMP:
- CG(active_op_array)->opcodes[case_token->u.opline_num].op1.u.opline_num = get_next_op_number(CG(active_op_array));
- break;
- case ZEND_JMPZ:
- CG(active_op_array)->opcodes[case_token->u.opline_num].op2.u.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.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.opline_num].op1.u.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;
- char *lcname;
- int error = 0;
- zval **ns_name;
- if (CG(active_class_entry)) {
- zend_error(E_COMPILE_ERROR, "Class declarations may not be nested");
- return;
- }
- lcname = zend_str_tolower_dup(class_name->u.constant.value.str.val, class_name->u.constant.value.str.len);
- if (!(strcmp(lcname, "self") && strcmp(lcname, "parent"))) {
- efree(lcname);
- zend_error(E_COMPILE_ERROR, "Cannot use '%s' as class name as it is reserved", class_name->u.constant.value.str.val);
- }
- /* Class name must not conflict with import names */
- if (CG(current_import) &&
- zend_hash_find(CG(current_import), lcname, Z_STRLEN(class_name->u.constant)+1, (void**)&ns_name) == SUCCESS) {
- error = 1;
- }
- if (CG(current_namespace)) {
- /* Prefix class name with name of current namespace */
- znode tmp;
- tmp.u.constant = *CG(current_namespace);
- zval_copy_ctor(&tmp.u.constant);
- zend_do_build_namespace_name(&tmp, &tmp, class_name TSRMLS_CC);
- class_name = &tmp;
- efree(lcname);
- lcname = zend_str_tolower_dup(Z_STRVAL(class_name->u.constant), Z_STRLEN(class_name->u.constant));
- }
- if (error) {
- char *tmp = zend_str_tolower_dup(Z_STRVAL_PP(ns_name), Z_STRLEN_PP(ns_name));
- if (Z_STRLEN_PP(ns_name) != Z_STRLEN(class_name->u.constant) ||
- memcmp(tmp, lcname, Z_STRLEN(class_name->u.constant))) {
- zend_error(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 = class_name->u.constant.value.str.val;
- new_class_entry->name_length = class_name->u.constant.value.str.len;
- zend_initialize_class_data(new_class_entry, 1 TSRMLS_CC);
- new_class_entry->filename = zend_get_compiled_filename(TSRMLS_C);
- new_class_entry->line_start = class_token->u.opline_num;
- new_class_entry->ce_flags |= class_token->u.EA.type;
- if (parent_class_name && parent_class_name->op_type != IS_UNUSED) {
- switch (parent_class_name->u.EA.type) {
- case ZEND_FETCH_CLASS_SELF:
- zend_error(E_COMPILE_ERROR, "Cannot use 'self' as class name as it is reserved");
- break;
- case ZEND_FETCH_CLASS_PARENT:
- zend_error(E_COMPILE_ERROR, "Cannot use 'parent' as class name as it is reserved");
- break;
- case ZEND_FETCH_CLASS_STATIC:
- zend_error(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.op_type = IS_CONST;
- build_runtime_defined_function_key(&opline->op1.u.constant, lcname, new_class_entry->name_length TSRMLS_CC);
-
- opline->op2.op_type = IS_CONST;
- opline->op2.u.constant.type = IS_STRING;
- Z_SET_REFCOUNT(opline->op2.u.constant, 1);
- if (doing_inheritance) {
- opline->extended_value = parent_class_name->u.var;
- opline->opcode = ZEND_DECLARE_INHERITED_CLASS;
- } else {
- opline->opcode = ZEND_DECLARE_CLASS;
- }
- opline->op2.u.constant.value.str.val = lcname;
- opline->op2.u.constant.value.str.len = new_class_entry->name_length;
-
- zend_hash_update(CG(class_table), opline->op1.u.constant.value.str.val, opline->op1.u.constant.value.str.len, &new_class_entry, sizeof(zend_class_entry *), NULL);
- CG(active_class_entry) = new_class_entry;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->result.op_type = IS_VAR;
- CG(implementing_class) = opline->result;
- if (CG(doc_comment)) {
- CG(active_class_entry)->doc_comment = CG(doc_comment);
- CG(active_class_entry)->doc_comment_len = CG(doc_comment_len);
- CG(doc_comment) = NULL;
- CG(doc_comment_len) = 0;
- }
- }
- /* }}} */
- 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;
- 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(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(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(E_COMPILE_ERROR, "Clone method %s::%s() cannot be static", ce->name, ce->clone->common.function_name);
- }
- }
- ce->line_end = zend_get_compiled_lineno(TSRMLS_C);
- if (!(ce->ce_flags & (ZEND_ACC_INTERFACE|ZEND_ACC_EXPLICIT_ABSTRACT_CLASS))
- && ((parent_token->op_type != IS_UNUSED) || (ce->num_interfaces > 0))) {
- zend_verify_abstract_class(ce TSRMLS_CC);
- if (ce->num_interfaces) {
- 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;
- 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(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;
- opline->op1 = CG(implementing_class);
- zend_resolve_class_name(interface_name, &opline->extended_value, 0 TSRMLS_CC);
- opline->extended_value = (opline->extended_value & ~ZEND_FETCH_CLASS_MASK) | ZEND_FETCH_CLASS_INTERFACE;
- opline->op2 = *interface_name;
- CG(active_class_entry)->num_interfaces++;
- }
- /* }}} */
- ZEND_API void zend_mangle_property_name(char **dest, int *dest_length, const char *src1, int src1_length, const char *src2, int src2_length, int internal) /* {{{ */
- {
- char *prop_name;
- int prop_name_length;
- prop_name_length = 1 + src1_length + 1 + src2_length;
- prop_name = pemalloc(prop_name_length + 1, internal);
- prop_name[0] = '\0';
- memcpy(prop_name + 1, src1, src1_length+1);
- memcpy(prop_name + 1 + src1_length + 1, src2, src2_length+1);
- *dest = prop_name;
- *dest_length = prop_name_length;
- }
- /* }}} */
- 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(char *mangled_property, int len, char **class_name, char **prop_name) /* {{{ */
- {
- int class_name_len;
- *class_name = NULL;
- if (mangled_property[0]!=0) {
- *prop_name = mangled_property;
- return SUCCESS;
- }
- if (len < 3 || mangled_property[1]==0) {
- zend_error(E_NOTICE, "Illegal member variable name");
- *prop_name = mangled_property;
- 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;
- return FAILURE;
- }
- *class_name = mangled_property+1;
- *prop_name = (*class_name)+class_name_len;
- return SUCCESS;
- }
- /* }}} */
- void zend_do_declare_property(const znode *var_name, const znode *value, zend_uint access_type TSRMLS_DC) /* {{{ */
- {
- zval *property;
- zend_property_info *existing_property_info;
- char *comment = NULL;
- int comment_len = 0;
- if (CG(active_class_entry)->ce_flags & ZEND_ACC_INTERFACE) {
- zend_error(E_COMPILE_ERROR, "Interfaces may not include member variables");
- }
- if (access_type & ZEND_ACC_ABSTRACT) {
- zend_error(E_COMPILE_ERROR, "Properties cannot be declared abstract");
- }
- if (access_type & ZEND_ACC_FINAL) {
- zend_error(E_COMPILE_ERROR, "Cannot declare property %s::$%s final, the final modifier is allowed only for methods and classes",
- CG(active_class_entry)->name, var_name->u.constant.value.str.val);
- }
- if (zend_hash_find(&CG(active_class_entry)->properties_info, var_name->u.constant.value.str.val, var_name->u.constant.value.str.len+1, (void **) &existing_property_info)==SUCCESS) {
- if (!(existing_property_info->flags & ZEND_ACC_IMPLICIT_PUBLIC)) {
- zend_error(E_COMPILE_ERROR, "Cannot redeclare %s::$%s", CG(active_class_entry)->name, var_name->u.constant.value.str.val);
- }
- }
- ALLOC_ZVAL(property);
- if (value) {
- *property = value->u.constant;
- } else {
- INIT_PZVAL(property);
- Z_TYPE_P(property) = IS_NULL;
- }
- if (CG(doc_comment)) {
- comment = CG(doc_comment);
- comment_len = CG(doc_comment_len);
- CG(doc_comment) = NULL;
- CG(doc_comment_len) = 0;
- }
- zend_declare_property_ex(CG(active_class_entry), var_name->u.constant.value.str.val, var_name->u.constant.value.str.len, property, access_type, comment, comment_len TSRMLS_CC);
- efree(var_name->u.constant.value.str.val);
- }
- /* }}} */
- void zend_do_declare_class_constant(znode *var_name, const znode *value TSRMLS_DC) /* {{{ */
- {
- zval *property;
- if(Z_TYPE(value->u.constant) == IS_CONSTANT_ARRAY) {
- zend_error(E_COMPILE_ERROR, "Arrays are not allowed in class constants");
- }
- ALLOC_ZVAL(property);
- *property = value->u.constant;
- if (zend_hash_add(&CG(active_class_entry)->constants_table, var_name->u.constant.value.str.val, var_name->u.constant.value.str.len+1, &property, sizeof(zval *), NULL)==FAILURE) {
- FREE_ZVAL(property);
- zend_error(E_COMPILE_ERROR, "Cannot redefine class constant %s::%s", CG(active_class_entry)->name, var_name->u.constant.value.str.val);
- }
- FREE_PNODE(var_name);
-
- if (CG(doc_comment)) {
- efree(CG(doc_comment));
- CG(doc_comment) = NULL;
- CG(doc_comment_len) = 0;
- }
- }
- /* }}} */
- 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.var == CG(active_op_array)->this_var) {
- SET_UNUSED(*object); /* 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)) {
- efree(Z_STRVAL(opline_ptr->op1.u.constant));
- SET_UNUSED(opline_ptr->op1); /* this means $this for objects */
- 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;
- }
- *result = opline_ptr->result;
- return;
- }
- }
- init_op(&opline TSRMLS_CC);
- opline.opcode = ZEND_FETCH_OBJ_W; /* the backpatching routine assumes W */
- opline.result.op_type = IS_VAR;
- opline.result.u.EA.type = 0;
- opline.result.u.var = get_temporary_variable(CG(active_op_array));
- opline.op1 = *object;
- opline.op2 = *property;
- *result = opline.result;
- zend_llist_add_element(fetch_list_ptr, &opline);
- }
- /* }}} */
- void zend_do_halt_compiler_register(TSRMLS_D) /* {{{ */
- {
- char *name, *cfilename;
- char haltoff[] = "__COMPILER_HALT_OFFSET__";
- int len, clen;
- cfilename = zend_get_compiled_filename(TSRMLS_C);
- clen = strlen(cfilename);
- zend_mangle_property_name(&name, &len, haltoff, sizeof(haltoff) - 1, cfilename, clen, 0);
- zend_register_long_constant(name, len+1, zend_get_scanned_file_offset(TSRMLS_C), CONST_CS, 0 TSRMLS_CC);
- pefree(name, 0);
- }
- /* }}} */
- void zend_do_declare_implicit_property(TSRMLS_D) /* {{{ */
- {
- /* Fixes bug #26182. Not sure why we needed to do this in the first place.
- Has to be checked with Zeev.
- */
- #if ANDI_0
- zend_op *opline_ptr;
- zend_llist_element *le;
- zend_llist *fetch_list_ptr;
- zend_stack_top(&CG(bp_stack), (void **) &fetch_list_ptr);
- if (fetch_list_ptr->count != 1) {
- return;
- }
- le = fetch_list_ptr->head;
- opline_ptr = (zend_op *) le->data;
- if (opline_ptr->op1.op_type == IS_UNUSED
- && CG(active_class_entry)
- && opline_ptr->op2.op_type == IS_CONST
- && !zend_hash_exists(&CG(active_class_entry)->properties_info, opline_ptr->op2.u.constant.value.str.val, opline_ptr->op2.u.constant.value.str.len+1)) {
- znode property;
- property = opline_ptr->op2;
- property.u.constant.value.str.val = estrndup(opline_ptr->op2.u.constant.value.str.val, opline_ptr->op2.u.constant.value.str.len);
- zend_do_declare_property(&property, NULL, ZEND_ACC_PUBLIC|ZEND_ACC_IMPLICIT_PUBLIC TSRMLS_CC);
- }
- #endif
- }
- /* }}} */
- 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.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->result.op_type = IS_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->op1 = *class_type;
- SET_UNUSED(opline->op2);
- zend_stack_push(&CG(function_call_stack), (void *) &ptr, sizeof(unsigned char *));
- }
- /* }}} */
- 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.opline_num].op2.u.opline_num = get_next_op_number(CG(active_op_array));
- *result = CG(active_op_array)->opcodes[new_token->u.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;
- if (Z_STRVAL_P(const_name)[0] == '\\') {
- if (zend_hash_find(EG(zend_constants), Z_STRVAL_P(const_name)+1, Z_STRLEN_P(const_name), (void **) &c) == FAILURE) {
- char *lookup_name = zend_str_tolower_dup(Z_STRVAL_P(const_name)+1, Z_STRLEN_P(const_name)-1);
- if (zend_hash_find(EG(zend_constants), lookup_name, Z_STRLEN_P(const_name), (void **) &c)==SUCCESS) {
- if ((c->flags & CONST_CT_SUBST) && !(c->flags & CONST_CS)) {
- efree(lookup_name);
- return c;
- }
- }
- efree(lookup_name);
- return NULL;
- }
- } else if (zend_hash_find(EG(zend_constants), Z_STRVAL_P(const_name), Z_STRLEN_P(const_name)+1, (void **) &c) == FAILURE) {
- char *lookup_name = zend_str_tolower_dup(Z_STRVAL_P(const_name), Z_STRLEN_P(const_name));
-
- if (zend_hash_find(EG(zend_constants), lookup_name, Z_STRLEN_P(const_name)+1, (void **) &c)==SUCCESS) {
- 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) &&
- Z_TYPE(c->value) != IS_CONSTANT &&
- Z_TYPE(c->value) != IS_CONSTANT_ARRAY) {
- 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, &fetch_type, 1 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, &fetch_type, 1 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.op_type = IS_TMP_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->op1 = *constant_container;
- opline->op2 = *constant_name;
- *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_non_class_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_non_class_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.op_type = IS_TMP_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- *result = opline->result;
- SET_UNUSED(opline->op1);
- if(compound) {
- /* the name is unambiguous */
- opline->extended_value = 0;
- } else {
- opline->extended_value = IS_CONSTANT_UNQUALIFIED;
- }
- opline->op2 = *constant_name;
- 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;
- }
- opline->op1 = *cmd;
- opline->op2.u.opline_num = 0;
- 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.u.var = get_temporary_variable(CG(active_op_array));
- opline->result.op_type = IS_VAR;
- Z_STRVAL(opline->op1.u.constant) = estrndup("shell_exec", sizeof("shell_exec")-1);
- Z_STRLEN(opline->op1.u.constant) = sizeof("shell_exec")-1;
- INIT_PZVAL(&opline->op1.u.constant);
- Z_TYPE(opline->op1.u.constant) = IS_STRING;
- opline->op1.op_type = IS_CONST;
- opline->extended_value = 1;
- SET_UNUSED(opline->op2);
- ZVAL_LONG(&opline->op2.u.constant, zend_hash_func("shell_exec", sizeof("shell_exec")));
- *result = opline->result;
- }
- /* }}} */
- 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.u.var = get_temporary_variable(CG(active_op_array));
- opline->result.op_type = IS_TMP_VAR;
- *result = opline->result;
- if (expr) {
- opline->op1 = *expr;
- if (offset) {
- opline->op2 = *offset;
- } 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;
- opline->result = *result;
- opline->op1 = *expr;
- if (offset) {
- opline->op2 = *offset;
- } 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;
- ALLOC_ZVAL(element);
- *element = expr->u.constant;
- if (offset) {
- switch (offset->u.constant.type & IS_CONSTANT_TYPE_MASK) {
- case IS_CONSTANT:
- /* Ugly hack to denote that this value has a constant index */
- Z_TYPE_P(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(result->u.constant.value.ht, Z_STRVAL(offset->u.constant), Z_STRLEN(offset->u.constant)+3, &element, sizeof(zval *), NULL);
- zval_dtor(&offset->u.constant);
- break;
- case IS_STRING:
- zend_symtable_update(result->u.constant.value.ht, offset->u.constant.value.str.val, offset->u.constant.value.str.len+1, &element, sizeof(zval *), NULL);
- zval_dtor(&offset->u.constant);
- break;
- case IS_NULL:
- zend_symtable_update(Z_ARRVAL(result->u.constant), "", 1, &element, sizeof(zval *), NULL);
- break;
- case IS_LONG:
- case IS_BOOL:
- zend_hash_index_update(Z_ARRVAL(result->u.constant), Z_LVAL(offset->u.constant), &element, sizeof(zval *), NULL);
- break;
- case IS_DOUBLE:
- zend_hash_index_update(Z_ARRVAL(result->u.constant), zend_dval_to_lval(Z_DVAL(offset->u.constant)), &element, sizeof(zval *), NULL);
- 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, sizeof(zval *), NULL);
- }
- }
- /* }}} */
- 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.op_type = IS_VAR;
- opline->result.u.EA.type = 0;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->op1 = last_container;
- opline->op2.op_type = IS_CONST;
- Z_TYPE(opline->op2.u.constant) = IS_LONG;
- Z_LVAL(opline->op2.u.constant) = *((int *) dimension->data);
- INIT_PZVAL(&opline->op2.u.constant);
- 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_do_fetch_static_variable(znode *varname, const znode *static_assignment, int fetch_type TSRMLS_DC) /* {{{ */
- {
- zval *tmp;
- zend_op *opline;
- znode lval;
- znode result;
- ALLOC_ZVAL(tmp);
- if (static_assignment) {
- *tmp = static_assignment->u.constant;
- } else {
- INIT_ZVAL(*tmp);
- }
- if (!CG(active_op_array)->static_variables) {
- 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, varname->u.constant.value.str.val, varname->u.constant.value.str.len+1, &tmp, sizeof(zval *), NULL);
- 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.op_type = IS_VAR;
- opline->result.u.EA.type = 0;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->op1 = *varname;
- SET_UNUSED(opline->op2);
- opline->op2.u.EA.type = ZEND_FETCH_STATIC;
- 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.u.EA.type |= EXT_TYPE_UNUSED;
- /* zval_dtor(&varname->u.constant); */
- }
- /* }}} */
- 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(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.op_type = IS_VAR;
- opline->result.u.EA.type = 0;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->op1 = *varname;
- SET_UNUSED(opline->op2);
- opline->op2.u.EA.type = fetch_type;
- 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.u.EA.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.op_type = IS_TMP_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->op1 = *expr;
- SET_UNUSED(opline->op2);
- opline->extended_value = type;
- *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.op_type = IS_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->op1 = *op1;
- SET_UNUSED(opline->op2);
- Z_LVAL(opline->op2.u.constant) = type;
- *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<num_references->u.constant.value.lval; 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) {
- CG(active_op_array)->this_var = lookup_cv(CG(active_op_array), estrndup("this", sizeof("this")-1), sizeof("this")-1);
- }
- }
- /* }}} */
- 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;
- opline->op1 = *variable;
- SET_UNUSED(opline->op2);
- opline->op2.u.EA.type = ZEND_FETCH_LOCAL;
- SET_UNUSED(opline->result);
- opline->extended_value = 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;
- break;
- case ZEND_FETCH_DIM_UNSET:
- last_op->opcode = ZEND_UNSET_DIM;
- break;
- case ZEND_FETCH_OBJ_UNSET:
- last_op->opcode = ZEND_UNSET_OBJ;
- 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);
- zend_check_writable_variable(variable);
- if (variable->op_type == IS_CV) {
- last_op = get_next_op(CG(active_op_array) TSRMLS_CC);
- last_op->opcode = ZEND_ISSET_ISEMPTY_VAR;
- last_op->op1 = *variable;
- SET_UNUSED(last_op->op2);
- last_op->op2.u.EA.type = ZEND_FETCH_LOCAL;
- last_op->result.u.var = get_temporary_variable(CG(active_op_array));
- last_op->extended_value = 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->extended_value = 0;
- }
- last_op->result.op_type = IS_TMP_VAR;
- last_op->extended_value |= type;
- *result = last_op->result;
- }
- /* }}} */
- void zend_do_sizeof(int type, znode *result, znode *arg TSRMLS_DC) {
- if (arg->op_type == IS_CONST) {
- if (type == ZEND_STRLEN) {
- result->op_type = IS_CONST;
- Z_TYPE(result->u.constant) = IS_LONG;
- Z_LVAL(result->u.constant) = Z_STRLEN(arg->u.constant);
- } else {
- zend_error(E_COMPILE_ERROR, "count() expects an array, constant given");
- }
- } else {
- zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
- opline->result.op_type = IS_TMP_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->op1 = *arg;
- opline->opcode = ZEND_SIZEOF;
- opline->extended_value|= type;
- SET_UNUSED(opline->op2);
- *result = opline->result;
- }
- }
- /* }}} */
- void zend_do_ifset(znode *result, znode *variable TSRMLS_DC) {
- fprintf(stderr, "IFSET: %i\n", variable->op_type);
- }
- /* }}} */
- 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(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.op_type = IS_TMP_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->op1 = *expr;
- opline->op2 = *class_znode;
- *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_bool push_container = 0;
- 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.opline_num = get_next_op_number(CG(active_op_array));
- zend_do_end_variable_parse(array, BP_VAR_W, 0 TSRMLS_CC);
- if (CG(active_op_array)->last > 0 &&
- CG(active_op_array)->opcodes[CG(active_op_array)->last-1].opcode == ZEND_FETCH_OBJ_W) {
- /* Only lock the container if we are fetching from a real container and not $this */
- if (CG(active_op_array)->opcodes[CG(active_op_array)->last-1].op1.op_type == IS_VAR) {
- CG(active_op_array)->opcodes[CG(active_op_array)->last-1].extended_value |= ZEND_FETCH_ADD_LOCK;
- push_container = 1;
- }
- }
- } else {
- is_variable = 0;
- open_brackets_token->u.opline_num = get_next_op_number(CG(active_op_array));
- }
- /* save the location of FE_RESET */
- foreach_token->u.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.op_type = IS_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->op1 = *array;
- SET_UNUSED(opline->op2);
- opline->extended_value = is_variable ? ZEND_FE_RESET_VARIABLE : 0;
- dummy_opline.result = opline->result;
- if (push_container) {
- dummy_opline.op1 = CG(active_op_array)->opcodes[CG(active_op_array)->last-2].op1;
- } else {
- znode tmp;
- tmp.op_type = IS_UNUSED;
- dummy_opline.op1 = tmp;
- }
- zend_stack_push(&CG(foreach_copy_stack), (void *) &dummy_opline, sizeof(zend_op));
- /* save the location of FE_FETCH */
- as_token->u.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.op_type = IS_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- 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.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) && (key->u.EA.type & ZEND_PARSED_REFERENCE_VARIABLE)) {
- zend_error(E_COMPILE_ERROR, "Key element cannot be a reference");
- }
- if (value->u.EA.type & ZEND_PARSED_REFERENCE_VARIABLE) {
- assign_by_ref = 1;
- if (!(opline-1)->extended_value) {
- zend_error(E_COMPILE_ERROR, "Cannot create references to elements of a temporary array expression");
- }
- /* Mark extended_value for assign-by-reference */
- opline->extended_value |= ZEND_FE_FETCH_BYREF;
- CG(active_op_array)->opcodes[foreach_token->u.opline_num].extended_value |= ZEND_FE_RESET_REFERENCE;
- } else {
- zend_op *foreach_copy;
- zend_op *fetch = &CG(active_op_array)->opcodes[foreach_token->u.opline_num];
- zend_op *end = &CG(active_op_array)->opcodes[open_brackets_token->u.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.op_type == IS_UNUSED) {
- zend_error(E_COMPILE_ERROR, "Cannot use [] for reading");
- }
- fetch->opcode -= 3; /* FETCH_W -> FETCH_R */
- }
- /* prevent double SWITCH_FREE */
- zend_stack_top(&CG(foreach_copy_stack), (void **) &foreach_copy);
- foreach_copy->op1.op_type = IS_UNUSED;
- }
- value_node = opline->result;
- 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.opline_num+1];
- opline->result.op_type = IS_TMP_VAR;
- opline->result.u.EA.type = 0;
- opline->result.u.opline_num = get_temporary_variable(CG(active_op_array));
- 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.u.opline_num = as_token->u.opline_num;
- SET_UNUSED(opline->op1);
- SET_UNUSED(opline->op2);
- CG(active_op_array)->opcodes[foreach_token->u.opline_num].op2.u.opline_num = get_next_op_number(CG(active_op_array)); /* FE_RESET */
- CG(active_op_array)->opcodes[as_token->u.opline_num].op2.u.opline_num = get_next_op_number(CG(active_op_array)); /* FE_FETCH */
- do_end_loop(as_token->u.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(var->u.constant.value.str.val, var->u.constant.value.str.len, "ticks", sizeof("ticks")-1)) {
- convert_to_long(&val->u.constant);
- CG(declarables).ticks = val->u.constant;
- #ifdef ZEND_MULTIBYTE
- } else if (!zend_binary_strcasecmp(var->u.constant.value.str.val, var->u.constant.value.str.len, "encoding", sizeof("encoding")-1)) {
- zend_encoding *new_encoding, *old_encoding;
- zend_encoding_filter old_input_filter;
- if ((Z_TYPE(val->u.constant) & IS_CONSTANT_TYPE_MASK) == IS_CONSTANT) {
- zend_error(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(E_COMPILE_ERROR, "Encoding declaration pragma must be the very first statement in the script");
- }
- }
- CG(encoding_declared) = 1;
- convert_to_string(&val->u.constant);
- new_encoding = zend_multibyte_fetch_encoding(val->u.constant.value.str.val);
- if (!new_encoding) {
- zend_error(E_COMPILE_WARNING, "Unsupported encoding [%s]", val->u.constant.value.str.val);
- } 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 == zend_multibyte_script_encoding_filter) &&
- (new_encoding != old_encoding))) {
- zend_multibyte_yyinput_again(old_input_filter, old_encoding TSRMLS_CC);
- }
- }
- efree(val->u.constant.value.str.val);
- #else /* !ZEND_MULTIBYTE */
- } else if (!zend_binary_strcasecmp(var->u.constant.value.str.val, var->u.constant.value.str.len, "encoding", sizeof("encoding")-1)) {
- /* Do not generate any kind of warning for encoding declares */
- /* zend_error(E_COMPILE_WARNING, "Declare encoding [%s] not supported", val->u.constant.value.str.val); */
- zval_dtor(&val->u.constant);
- #endif /* ZEND_MULTIBYTE */
- } else {
- zend_error(E_COMPILE_WARNING, "Unsupported declare '%s'", var->u.constant.value.str.val);
- 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.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;
- 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.op_type = IS_TMP_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- SET_UNUSED(opline->op1);
- SET_UNUSED(opline->op2);
- *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;
- 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);
- opline->opcode = ZEND_JMP_SET;
- opline->result.op_type = IS_TMP_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->op1 = *value;
- SET_UNUSED(opline->op2);
-
- *colon_token = opline->result;
- jmp_token->u.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);
- opline->opcode = ZEND_QM_ASSIGN;
- opline->extended_value = 0;
- opline->result = *colon_token;
- opline->op1 = *false_value;
- SET_UNUSED(opline->op2);
-
- *result = opline->result;
- CG(active_op_array)->opcodes[jmp_token->u.opline_num].op2.u.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;
- opline->op1 = *cond;
- SET_UNUSED(opline->op2);
- opline->op2.u.opline_num = jmpz_op_number;
- *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.opline_num].op2.u.opline_num = get_next_op_number(CG(active_op_array))+1; /* jmp over the ZEND_JMP */
- opline->opcode = ZEND_QM_ASSIGN;
- opline->result.op_type = IS_TMP_VAR;
- opline->result.u.var = get_temporary_variable(CG(active_op_array));
- opline->op1 = *true_value;
- SET_UNUSED(opline->op2);
- *qm_token = opline->result;
- colon_token->u.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);
- opline->opcode = ZEND_QM_ASSIGN;
- opline->result = *qm_token;
- opline->op1 = *false_value;
- SET_UNUSED(opline->op2);
- CG(active_op_array)->opcodes[colon_token->u.opline_num].op1.u.opline_num = get_next_op_number(CG(active_op_array));
- *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) /* {{{ */
- {
- if (Z_LVAL(CG(declarables).ticks)) {
- zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
- opline->opcode = ZEND_TICKS;
- opline->op1.u.constant = CG(declarables).ticks;
- opline->op1.op_type = IS_CONST;
- SET_UNUSED(opline->op2);
- }
- }
- /* }}} */
- void zend_auto_global_dtor(zend_auto_global *auto_global) /* {{{ */
- {
- free(auto_global->name);
- }
- /* }}} */
- zend_bool zend_is_auto_global(const char *name, uint name_len TSRMLS_DC) /* {{{ */
- {
- zend_auto_global *auto_global;
- if (zend_hash_find(CG(auto_globals), name, name_len+1, (void **) &auto_global)==SUCCESS) {
- if (auto_global->armed) {
- auto_global->armed = auto_global->auto_global_callback(auto_global->name, auto_global->name_len TSRMLS_CC);
- }
- return 1;
- }
- return 0;
- }
- /* }}} */
- int zend_register_auto_global(const char *name, uint name_len, zend_auto_global_callback auto_global_callback TSRMLS_DC) /* {{{ */
- {
- zend_auto_global auto_global;
- auto_global.name = zend_strndup(name, name_len);
- auto_global.name_len = name_len;
- auto_global.auto_global_callback = auto_global_callback;
- return zend_hash_add(CG(auto_globals), name, name_len+1, &auto_global, sizeof(zend_auto_global), NULL);
- }
- /* }}} */
- 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;
- case T_END_HEREDOC:
- efree(Z_STRVAL(zendlval->u.constant));
- 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->constants_updated = 0;
- ce->ce_flags = 0;
- ce->doc_comment = NULL;
- ce->doc_comment_len = 0;
- zend_hash_init_ex(&ce->default_properties, 0, NULL, zval_ptr_dtor_func, persistent_hashes, 0);
- zend_hash_init_ex(&ce->properties_info, 0, NULL, (dtor_func_t) (persistent_hashes ? zend_destroy_property_info_internal : zend_destroy_property_info), persistent_hashes, 0);
- zend_hash_init_ex(&ce->default_static_members, 0, NULL, zval_ptr_dtor_func, 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) && n >= CG(last_static_member)) {
- /* Support for run-time declaration: dl() */
- CG(last_static_member) = n+1;
- CG(static_members) = realloc(CG(static_members), (n+1)*sizeof(HashTable*));
- CG(static_members)[n] = NULL;
- }
- ce->static_members = (HashTable*)(zend_intptr_t)n;
- #else
- ce->static_members = NULL;
- #endif
- } else {
- ce->static_members = &ce->default_static_members;
- }
- 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->module = NULL;
- ce->serialize = NULL;
- ce->unserialize = NULL;
- ce->serialize_func = NULL;
- ce->unserialize_func = NULL;
- ce->builtin_functions = NULL;
- }
- }
- /* }}} */
- int zend_get_class_fetch_type(const char *class_name, uint class_name_len) /* {{{ */
- {
- if ((class_name_len == sizeof("self")-1) &&
- !memcmp(class_name, "self", sizeof("self")-1)) {
- return ZEND_FETCH_CLASS_SELF;
- } else if ((class_name_len == sizeof("parent")-1) &&
- !memcmp(class_name, "parent", sizeof("parent")-1)) {
- return ZEND_FETCH_CLASS_PARENT;
- } else if ((class_name_len == sizeof("static")-1) &&
- !memcmp(class_name, "static", sizeof("static")-1)) {
- return ZEND_FETCH_CLASS_STATIC;
- } else {
- return ZEND_FETCH_CLASS_DEFAULT;
- }
- }
- /* }}} */
- ZEND_API char* zend_get_compiled_variable_name(const zend_op_array *op_array, zend_uint var, int* name_len) /* {{{ */
- {
- if (name_len) {
- *name_len = op_array->vars[var].name_len;
- }
- return op_array->vars[var].name;
- }
- /* }}} */
- 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 (CG(current_namespace)) {
- znode tmp;
- zval_dtor(&result->u.constant);
- tmp.op_type = IS_CONST;
- tmp.u.constant = *CG(current_namespace);
- zval_copy_ctor(&tmp.u.constant);
- 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;
- }
- /* 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 (CG(current_namespace)) {
- /* previous namespace declarations were unbracketed */
- if (with_bracket) {
- zend_error(E_COMPILE_ERROR, "Cannot mix bracketed namespace declarations with unbracketed namespace declarations");
- }
- }
- } else {
- /* previous namespace declarations were bracketed */
- if (!with_bracket) {
- zend_error(E_COMPILE_ERROR, "Cannot mix bracketed namespace declarations with unbracketed namespace declarations");
- } else if (CG(current_namespace) || CG(in_namespace)) {
- zend_error(E_COMPILE_ERROR, "Namespace declarations cannot be nested");
- }
- }
- if (((!with_bracket && !CG(current_namespace)) || (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(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(E_COMPILE_ERROR, "Cannot use '%s' as namespace name", Z_STRVAL(name->u.constant));
- }
- efree(lcname);
- if (CG(current_namespace)) {
- zval_dtor(CG(current_namespace));
- } else {
- ALLOC_ZVAL(CG(current_namespace));
- }
- *CG(current_namespace) = name->u.constant;
- } else {
- if (CG(current_namespace)) {
- zval_dtor(CG(current_namespace));
- FREE_ZVAL(CG(current_namespace));
- CG(current_namespace) = NULL;
- }
- }
- if (CG(current_import)) {
- zend_hash_destroy(CG(current_import));
- efree(CG(current_import));
- CG(current_import) = NULL;
- }
- }
- /* }}} */
- void zend_do_use(znode *ns_name, znode *new_name, int is_global TSRMLS_DC) /* {{{ */
- {
- char *lcname;
- zval *name, *ns, tmp;
- zend_bool warn = 0;
- zend_class_entry **pce;
- if (!CG(current_import)) {
- CG(current_import) = emalloc(sizeof(HashTable));
- zend_hash_init(CG(current_import), 0, NULL, ZVAL_PTR_DTOR, 0);
- }
- ALLOC_ZVAL(ns);
- *ns = ns_name->u.constant;
- if (new_name) {
- name = &new_name->u.constant;
- } else {
- 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_P(ns), '\\', Z_STRLEN_P(ns));
- if (p) {
- ZVAL_STRING(name, p+1, 1);
- } else {
- *name = *ns;
- zval_copy_ctor(name);
- warn = !is_global && !CG(current_namespace);
- }
- }
- lcname = zend_str_tolower_dup(Z_STRVAL_P(name), Z_STRLEN_P(name));
- if (((Z_STRLEN_P(name) == sizeof("self")-1) &&
- !memcmp(lcname, "self", sizeof("self")-1)) ||
- ((Z_STRLEN_P(name) == sizeof("parent")-1) &&
- !memcmp(lcname, "parent", sizeof("parent")-1))) {
- zend_error(E_COMPILE_ERROR, "Cannot use %s as %s because '%s' is a special class name", Z_STRVAL_P(ns), Z_STRVAL_P(name), Z_STRVAL_P(name));
- }
- if (CG(current_namespace)) {
- /* Prefix import name with current namespace name to avoid conflicts with classes */
- char *c_ns_name = emalloc(Z_STRLEN_P(CG(current_namespace)) + 1 + Z_STRLEN_P(name) + 1);
- zend_str_tolower_copy(c_ns_name, Z_STRVAL_P(CG(current_namespace)), Z_STRLEN_P(CG(current_namespace)));
- c_ns_name[Z_STRLEN_P(CG(current_namespace))] = '\\';
- memcpy(c_ns_name+Z_STRLEN_P(CG(current_namespace))+1, lcname, Z_STRLEN_P(name)+1);
- if (zend_hash_exists(CG(class_table), c_ns_name, Z_STRLEN_P(CG(current_namespace)) + 1 + Z_STRLEN_P(name)+1)) {
- char *tmp2 = zend_str_tolower_dup(Z_STRVAL_P(ns), Z_STRLEN_P(ns));
- if (Z_STRLEN_P(ns) != Z_STRLEN_P(CG(current_namespace)) + 1 + Z_STRLEN_P(name) ||
- memcmp(tmp2, c_ns_name, Z_STRLEN_P(ns))) {
- zend_error(E_COMPILE_ERROR, "Cannot use %s as %s because the name is already in use", Z_STRVAL_P(ns), Z_STRVAL_P(name));
- }
- efree(tmp2);
- }
- efree(c_ns_name);
- } else if (zend_hash_find(CG(class_table), lcname, Z_STRLEN_P(name)+1, (void**)&pce) == SUCCESS &&
- (*pce)->type == ZEND_USER_CLASS &&
- (*pce)->filename == CG(compiled_filename)) {
- char *c_tmp = zend_str_tolower_dup(Z_STRVAL_P(ns), Z_STRLEN_P(ns));
- if (Z_STRLEN_P(ns) != Z_STRLEN_P(name) ||
- memcmp(c_tmp, lcname, Z_STRLEN_P(ns))) {
- zend_error(E_COMPILE_ERROR, "Cannot use %s as %s because the name is already in use", Z_STRVAL_P(ns), Z_STRVAL_P(name));
- }
- efree(c_tmp);
- }
- if (zend_hash_add(CG(current_import), lcname, Z_STRLEN_P(name)+1, &ns, sizeof(zval*), NULL) != SUCCESS) {
- zend_error(E_COMPILE_ERROR, "Cannot use %s as %s because the name is already in use", Z_STRVAL_P(ns), Z_STRVAL_P(name));
- }
- if (warn) {
- 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_declare_constant(znode *name, znode *value TSRMLS_DC) /* {{{ */
- {
- zend_op *opline;
- if(Z_TYPE(value->u.constant) == IS_CONSTANT_ARRAY) {
- zend_error(E_COMPILE_ERROR, "Arrays are not allowed as constants");
- }
- if (zend_get_ct_const(&name->u.constant, 0 TSRMLS_CC)) {
- zend_error(E_COMPILE_ERROR, "Cannot redeclare constant '%s'", Z_STRVAL(name->u.constant));
- }
- if (CG(current_namespace)) {
- /* Prefix constant name with name of current namespace, lowercased */
- znode tmp;
- tmp.op_type = IS_CONST;
- tmp.u.constant = *CG(current_namespace);
- Z_STRVAL(tmp.u.constant) = zend_str_tolower_dup(Z_STRVAL(tmp.u.constant), Z_STRLEN(tmp.u.constant));
- zend_do_build_namespace_name(&tmp, &tmp, name TSRMLS_CC);
- *name = tmp;
- }
- opline = get_next_op(CG(active_op_array) TSRMLS_CC);
- opline->opcode = ZEND_DECLARE_CONST;
- SET_UNUSED(opline->result);
- opline->op1 = *name;
- opline->op2 = *value;
- }
- /* }}} */
- void zend_verify_namespace(TSRMLS_D) /* {{{ */
- {
- if (CG(has_bracketed_namespaces) && !CG(in_namespace)) {
- zend_error(E_COMPILE_ERROR, "No code may exist outside of namespace {}");
- }
- }
- /* }}} */
- void zend_do_end_namespace(TSRMLS_D) /* {{{ */
- {
- CG(in_namespace) = 0;
- if (CG(current_namespace)) {
- zval_dtor(CG(current_namespace));
- FREE_ZVAL(CG(current_namespace));
- CG(current_namespace) = NULL;
- }
- if (CG(current_import)) {
- zend_hash_destroy(CG(current_import));
- efree(CG(current_import));
- CG(current_import) = NULL;
- }
- }
- /* }}} */
- void zend_do_end_compilation(TSRMLS_D) /* {{{ */
- {
- CG(has_bracketed_namespaces) = 0;
- zend_do_end_namespace(TSRMLS_C);
- }
- /* }}} */
- /* {{{ 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 occurence 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:
- */