 ntroduce infrastructure for supplying information about arguments,
including:
- Whether or not to pass by ref (replaces the old arg_types, with arg_info)
- Argument name (for future use, maybe introspection)
- Class/Interface name (for type hints)
- If a class/interface name is available, whether to allow a null instance
Both user and builtin functions share the same data structures.
To declare a builtin function that expects its first arg to be an instance
of class 'Person', its second argument as a regular arg, and its third by
reference, use:
ZEND_BEGIN_ARG_INFO(my_func_arg_info, 0)
ZEND_ARG_OBJ_INFO(0, someone, Person, 1)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO();
and use my_func_arg_info as the arg_info parameter to the ZEND_FE() family
of macros.
The first arg to each ZEND_ARG_*() macro is whether or not to pass by ref.
The boolean arg to ZEND_BEGIN_ARG_INFO() tells the engine whether to treat
the arguments for which there's no explicit information as pass by reference
or not.
The boolean argument to ZEND_ARG_OBJ_INFO() (4th arg) is whether or not to allownull values.
23 years ago ntroduce infrastructure for supplying information about arguments,
including:
- Whether or not to pass by ref (replaces the old arg_types, with arg_info)
- Argument name (for future use, maybe introspection)
- Class/Interface name (for type hints)
- If a class/interface name is available, whether to allow a null instance
Both user and builtin functions share the same data structures.
To declare a builtin function that expects its first arg to be an instance
of class 'Person', its second argument as a regular arg, and its third by
reference, use:
ZEND_BEGIN_ARG_INFO(my_func_arg_info, 0)
ZEND_ARG_OBJ_INFO(0, someone, Person, 1)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO();
and use my_func_arg_info as the arg_info parameter to the ZEND_FE() family
of macros.
The first arg to each ZEND_ARG_*() macro is whether or not to pass by ref.
The boolean arg to ZEND_BEGIN_ARG_INFO() tells the engine whether to treat
the arguments for which there's no explicit information as pass by reference
or not.
The boolean argument to ZEND_ARG_OBJ_INFO() (4th arg) is whether or not to allownull values.
23 years ago ntroduce infrastructure for supplying information about arguments,
including:
- Whether or not to pass by ref (replaces the old arg_types, with arg_info)
- Argument name (for future use, maybe introspection)
- Class/Interface name (for type hints)
- If a class/interface name is available, whether to allow a null instance
Both user and builtin functions share the same data structures.
To declare a builtin function that expects its first arg to be an instance
of class 'Person', its second argument as a regular arg, and its third by
reference, use:
ZEND_BEGIN_ARG_INFO(my_func_arg_info, 0)
ZEND_ARG_OBJ_INFO(0, someone, Person, 1)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO();
and use my_func_arg_info as the arg_info parameter to the ZEND_FE() family
of macros.
The first arg to each ZEND_ARG_*() macro is whether or not to pass by ref.
The boolean arg to ZEND_BEGIN_ARG_INFO() tells the engine whether to treat
the arguments for which there's no explicit information as pass by reference
or not.
The boolean argument to ZEND_ARG_OBJ_INFO() (4th arg) is whether or not to allownull values.
23 years ago ntroduce infrastructure for supplying information about arguments,
including:
- Whether or not to pass by ref (replaces the old arg_types, with arg_info)
- Argument name (for future use, maybe introspection)
- Class/Interface name (for type hints)
- If a class/interface name is available, whether to allow a null instance
Both user and builtin functions share the same data structures.
To declare a builtin function that expects its first arg to be an instance
of class 'Person', its second argument as a regular arg, and its third by
reference, use:
ZEND_BEGIN_ARG_INFO(my_func_arg_info, 0)
ZEND_ARG_OBJ_INFO(0, someone, Person, 1)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO();
and use my_func_arg_info as the arg_info parameter to the ZEND_FE() family
of macros.
The first arg to each ZEND_ARG_*() macro is whether or not to pass by ref.
The boolean arg to ZEND_BEGIN_ARG_INFO() tells the engine whether to treat
the arguments for which there's no explicit information as pass by reference
or not.
The boolean argument to ZEND_ARG_OBJ_INFO() (4th arg) is whether or not to allownull values.
23 years ago ntroduce infrastructure for supplying information about arguments,
including:
- Whether or not to pass by ref (replaces the old arg_types, with arg_info)
- Argument name (for future use, maybe introspection)
- Class/Interface name (for type hints)
- If a class/interface name is available, whether to allow a null instance
Both user and builtin functions share the same data structures.
To declare a builtin function that expects its first arg to be an instance
of class 'Person', its second argument as a regular arg, and its third by
reference, use:
ZEND_BEGIN_ARG_INFO(my_func_arg_info, 0)
ZEND_ARG_OBJ_INFO(0, someone, Person, 1)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO();
and use my_func_arg_info as the arg_info parameter to the ZEND_FE() family
of macros.
The first arg to each ZEND_ARG_*() macro is whether or not to pass by ref.
The boolean arg to ZEND_BEGIN_ARG_INFO() tells the engine whether to treat
the arguments for which there's no explicit information as pass by reference
or not.
The boolean argument to ZEND_ARG_OBJ_INFO() (4th arg) is whether or not to allownull values.
23 years ago ntroduce infrastructure for supplying information about arguments,
including:
- Whether or not to pass by ref (replaces the old arg_types, with arg_info)
- Argument name (for future use, maybe introspection)
- Class/Interface name (for type hints)
- If a class/interface name is available, whether to allow a null instance
Both user and builtin functions share the same data structures.
To declare a builtin function that expects its first arg to be an instance
of class 'Person', its second argument as a regular arg, and its third by
reference, use:
ZEND_BEGIN_ARG_INFO(my_func_arg_info, 0)
ZEND_ARG_OBJ_INFO(0, someone, Person, 1)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO();
and use my_func_arg_info as the arg_info parameter to the ZEND_FE() family
of macros.
The first arg to each ZEND_ARG_*() macro is whether or not to pass by ref.
The boolean arg to ZEND_BEGIN_ARG_INFO() tells the engine whether to treat
the arguments for which there's no explicit information as pass by reference
or not.
The boolean argument to ZEND_ARG_OBJ_INFO() (4th arg) is whether or not to allownull values.
23 years ago ntroduce infrastructure for supplying information about arguments,
including:
- Whether or not to pass by ref (replaces the old arg_types, with arg_info)
- Argument name (for future use, maybe introspection)
- Class/Interface name (for type hints)
- If a class/interface name is available, whether to allow a null instance
Both user and builtin functions share the same data structures.
To declare a builtin function that expects its first arg to be an instance
of class 'Person', its second argument as a regular arg, and its third by
reference, use:
ZEND_BEGIN_ARG_INFO(my_func_arg_info, 0)
ZEND_ARG_OBJ_INFO(0, someone, Person, 1)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO();
and use my_func_arg_info as the arg_info parameter to the ZEND_FE() family
of macros.
The first arg to each ZEND_ARG_*() macro is whether or not to pass by ref.
The boolean arg to ZEND_BEGIN_ARG_INFO() tells the engine whether to treat
the arguments for which there's no explicit information as pass by reference
or not.
The boolean argument to ZEND_ARG_OBJ_INFO() (4th arg) is whether or not to allownull values.
23 years ago ntroduce infrastructure for supplying information about arguments,
including:
- Whether or not to pass by ref (replaces the old arg_types, with arg_info)
- Argument name (for future use, maybe introspection)
- Class/Interface name (for type hints)
- If a class/interface name is available, whether to allow a null instance
Both user and builtin functions share the same data structures.
To declare a builtin function that expects its first arg to be an instance
of class 'Person', its second argument as a regular arg, and its third by
reference, use:
ZEND_BEGIN_ARG_INFO(my_func_arg_info, 0)
ZEND_ARG_OBJ_INFO(0, someone, Person, 1)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO();
and use my_func_arg_info as the arg_info parameter to the ZEND_FE() family
of macros.
The first arg to each ZEND_ARG_*() macro is whether or not to pass by ref.
The boolean arg to ZEND_BEGIN_ARG_INFO() tells the engine whether to treat
the arguments for which there's no explicit information as pass by reference
or not.
The boolean argument to ZEND_ARG_OBJ_INFO() (4th arg) is whether or not to allownull values.
23 years ago ntroduce infrastructure for supplying information about arguments,
including:
- Whether or not to pass by ref (replaces the old arg_types, with arg_info)
- Argument name (for future use, maybe introspection)
- Class/Interface name (for type hints)
- If a class/interface name is available, whether to allow a null instance
Both user and builtin functions share the same data structures.
To declare a builtin function that expects its first arg to be an instance
of class 'Person', its second argument as a regular arg, and its third by
reference, use:
ZEND_BEGIN_ARG_INFO(my_func_arg_info, 0)
ZEND_ARG_OBJ_INFO(0, someone, Person, 1)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO();
and use my_func_arg_info as the arg_info parameter to the ZEND_FE() family
of macros.
The first arg to each ZEND_ARG_*() macro is whether or not to pass by ref.
The boolean arg to ZEND_BEGIN_ARG_INFO() tells the engine whether to treat
the arguments for which there's no explicit information as pass by reference
or not.
The boolean argument to ZEND_ARG_OBJ_INFO() (4th arg) is whether or not to allownull values.
23 years ago ntroduce infrastructure for supplying information about arguments,
including:
- Whether or not to pass by ref (replaces the old arg_types, with arg_info)
- Argument name (for future use, maybe introspection)
- Class/Interface name (for type hints)
- If a class/interface name is available, whether to allow a null instance
Both user and builtin functions share the same data structures.
To declare a builtin function that expects its first arg to be an instance
of class 'Person', its second argument as a regular arg, and its third by
reference, use:
ZEND_BEGIN_ARG_INFO(my_func_arg_info, 0)
ZEND_ARG_OBJ_INFO(0, someone, Person, 1)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO();
and use my_func_arg_info as the arg_info parameter to the ZEND_FE() family
of macros.
The first arg to each ZEND_ARG_*() macro is whether or not to pass by ref.
The boolean arg to ZEND_BEGIN_ARG_INFO() tells the engine whether to treat
the arguments for which there's no explicit information as pass by reference
or not.
The boolean argument to ZEND_ARG_OBJ_INFO() (4th arg) is whether or not to allownull values.
23 years ago ntroduce infrastructure for supplying information about arguments,
including:
- Whether or not to pass by ref (replaces the old arg_types, with arg_info)
- Argument name (for future use, maybe introspection)
- Class/Interface name (for type hints)
- If a class/interface name is available, whether to allow a null instance
Both user and builtin functions share the same data structures.
To declare a builtin function that expects its first arg to be an instance
of class 'Person', its second argument as a regular arg, and its third by
reference, use:
ZEND_BEGIN_ARG_INFO(my_func_arg_info, 0)
ZEND_ARG_OBJ_INFO(0, someone, Person, 1)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO();
and use my_func_arg_info as the arg_info parameter to the ZEND_FE() family
of macros.
The first arg to each ZEND_ARG_*() macro is whether or not to pass by ref.
The boolean arg to ZEND_BEGIN_ARG_INFO() tells the engine whether to treat
the arguments for which there's no explicit information as pass by reference
or not.
The boolean argument to ZEND_ARG_OBJ_INFO() (4th arg) is whether or not to allownull values.
23 years ago ntroduce infrastructure for supplying information about arguments,
including:
- Whether or not to pass by ref (replaces the old arg_types, with arg_info)
- Argument name (for future use, maybe introspection)
- Class/Interface name (for type hints)
- If a class/interface name is available, whether to allow a null instance
Both user and builtin functions share the same data structures.
To declare a builtin function that expects its first arg to be an instance
of class 'Person', its second argument as a regular arg, and its third by
reference, use:
ZEND_BEGIN_ARG_INFO(my_func_arg_info, 0)
ZEND_ARG_OBJ_INFO(0, someone, Person, 1)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO();
and use my_func_arg_info as the arg_info parameter to the ZEND_FE() family
of macros.
The first arg to each ZEND_ARG_*() macro is whether or not to pass by ref.
The boolean arg to ZEND_BEGIN_ARG_INFO() tells the engine whether to treat
the arguments for which there's no explicit information as pass by reference
or not.
The boolean argument to ZEND_ARG_OBJ_INFO() (4th arg) is whether or not to allownull values.
23 years ago ntroduce infrastructure for supplying information about arguments,
including:
- Whether or not to pass by ref (replaces the old arg_types, with arg_info)
- Argument name (for future use, maybe introspection)
- Class/Interface name (for type hints)
- If a class/interface name is available, whether to allow a null instance
Both user and builtin functions share the same data structures.
To declare a builtin function that expects its first arg to be an instance
of class 'Person', its second argument as a regular arg, and its third by
reference, use:
ZEND_BEGIN_ARG_INFO(my_func_arg_info, 0)
ZEND_ARG_OBJ_INFO(0, someone, Person, 1)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO();
and use my_func_arg_info as the arg_info parameter to the ZEND_FE() family
of macros.
The first arg to each ZEND_ARG_*() macro is whether or not to pass by ref.
The boolean arg to ZEND_BEGIN_ARG_INFO() tells the engine whether to treat
the arguments for which there's no explicit information as pass by reference
or not.
The boolean argument to ZEND_ARG_OBJ_INFO() (4th arg) is whether or not to allownull values.
23 years ago ntroduce infrastructure for supplying information about arguments,
including:
- Whether or not to pass by ref (replaces the old arg_types, with arg_info)
- Argument name (for future use, maybe introspection)
- Class/Interface name (for type hints)
- If a class/interface name is available, whether to allow a null instance
Both user and builtin functions share the same data structures.
To declare a builtin function that expects its first arg to be an instance
of class 'Person', its second argument as a regular arg, and its third by
reference, use:
ZEND_BEGIN_ARG_INFO(my_func_arg_info, 0)
ZEND_ARG_OBJ_INFO(0, someone, Person, 1)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO();
and use my_func_arg_info as the arg_info parameter to the ZEND_FE() family
of macros.
The first arg to each ZEND_ARG_*() macro is whether or not to pass by ref.
The boolean arg to ZEND_BEGIN_ARG_INFO() tells the engine whether to treat
the arguments for which there's no explicit information as pass by reference
or not.
The boolean argument to ZEND_ARG_OBJ_INFO() (4th arg) is whether or not to allownull values.
23 years ago ntroduce infrastructure for supplying information about arguments,
including:
- Whether or not to pass by ref (replaces the old arg_types, with arg_info)
- Argument name (for future use, maybe introspection)
- Class/Interface name (for type hints)
- If a class/interface name is available, whether to allow a null instance
Both user and builtin functions share the same data structures.
To declare a builtin function that expects its first arg to be an instance
of class 'Person', its second argument as a regular arg, and its third by
reference, use:
ZEND_BEGIN_ARG_INFO(my_func_arg_info, 0)
ZEND_ARG_OBJ_INFO(0, someone, Person, 1)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO();
and use my_func_arg_info as the arg_info parameter to the ZEND_FE() family
of macros.
The first arg to each ZEND_ARG_*() macro is whether or not to pass by ref.
The boolean arg to ZEND_BEGIN_ARG_INFO() tells the engine whether to treat
the arguments for which there's no explicit information as pass by reference
or not.
The boolean argument to ZEND_ARG_OBJ_INFO() (4th arg) is whether or not to allownull values.
23 years ago |
|
/*
+----------------------------------------------------------------------+ | Zend Engine | +----------------------------------------------------------------------+ | Copyright (c) 1998-2003 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> | +----------------------------------------------------------------------+*/
/* $Id$ */
#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_fast_cache.h"
ZEND_API zend_op_array *(*zend_compile_file)(zend_file_handle *file_handle, int type TSRMLS_DC);
#ifndef ZTS
ZEND_API zend_compiler_globals compiler_globals;ZEND_API zend_executor_globals executor_globals;#endif
static void build_runtime_defined_function_key(zval *result, char *name, int name_length, zend_op *opline TSRMLS_DC){ char lineno_buf[32]; uint lineno_len; char *filename;
lineno_len = zend_sprintf(lineno_buf, "%d", opline->lineno); if (CG(active_op_array)->filename) { filename = CG(active_op_array)->filename; } else { filename = "-"; }
/* NULL, name length, filename length, line number length */ result->value.str.len = 1+name_length+strlen(filename)+lineno_len; result->value.str.val = (char *) emalloc(result->value.str.len+1); sprintf(result->value.str.val, "%c%s%s%s", '\0', name, filename, lineno_buf); result->type = IS_STRING; result->refcount = 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;}
static void init_compiler_declarables(TSRMLS_D){ CG(declarables).ticks.type = IS_LONG; CG(declarables).ticks.value.lval = 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(handle_op_arrays) = 1; CG(in_compilation) = 0; CG(start_lineno) = 0; init_compiler_declarables(TSRMLS_C); CG(throw_list) = NULL; zend_hash_apply(CG(auto_globals), (apply_func_t) zend_auto_global_arm TSRMLS_CC);}
void init_compiler(TSRMLS_D){ 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 *)) zend_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_API char *zend_set_compiled_filename(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)++ * sizeof(temp_variable);}
void zend_do_fold_binary_op(zend_uchar op, znode *result, znode *op1, znode *op2 TSRMLS_DC){ int (*do_op)(zval *, zval *, zval * TSRMLS_DC);
#define FOLD_CASE(val, func) \
case val: \ do_op = func; \ break;
switch (op) { FOLD_CASE(ZEND_SL, shift_left_function) FOLD_CASE(ZEND_SR, shift_right_function) FOLD_CASE(ZEND_BW_OR, bitwise_or_function) FOLD_CASE(ZEND_BW_AND, bitwise_and_function) FOLD_CASE(ZEND_BW_XOR, bitwise_xor_function) FOLD_CASE(ZEND_CONCAT, concat_function) FOLD_CASE(ZEND_ADD, add_function) FOLD_CASE(ZEND_SUB, sub_function) FOLD_CASE(ZEND_MUL, mul_function) FOLD_CASE(ZEND_DIV, div_function) FOLD_CASE(ZEND_MOD, mod_function) FOLD_CASE(ZEND_BOOL_XOR, boolean_xor_function) case ZEND_BW_NOT: bitwise_not_function(&result->u.constant, &op1->u.constant TSRMLS_CC); return; default: zend_error(E_COMPILE_ERROR, "Unknown binary op opcode %d", op); return; }
do_op(&result->u.constant, &op1->u.constant, &op2->u.constant TSRMLS_CC);}
void zend_do_binary_op(zend_uchar op, znode *result, znode *op1, 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, 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, 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, znode *op1, znode *op2 TSRMLS_DC){ int last_op_number = get_next_op_number(CG(active_op_array))-1; zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC); zend_op *last_op = &CG(active_op_array)->opcodes[last_op_number]; 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; break; case ZEND_FETCH_DIM_RW:#if 1
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; break;#endif
default: 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; break; }}
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 (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; } else {/* if (CG(active_op_array)->static_variables && zend_hash_exists(CG(active_op_array)->static_variables, varname->u.constant.value.str.val, varname->u.constant.value.str.len+1)) {
opline_ptr->op2.u.EA.type = ZEND_FETCH_STATIC; } */ } }
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 *class_znode TSRMLS_DC){ zend_llist *fetch_list_ptr; zend_llist_element *le; zend_op *opline_ptr;
zend_stack_top(&CG(bp_stack), (void **) &fetch_list_ptr); le = fetch_list_ptr->head;
opline_ptr = (zend_op *)le->data; opline_ptr->op2 = *class_znode; 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, znode *parent, 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, znode *parent, znode *offset TSRMLS_DC){ fetch_array_dim(result, parent, offset TSRMLS_CC);}
void zend_do_print(znode *result, 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(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(znode *function_name, znode *modifiers, znode *body TSRMLS_DC){ char *method_type;
if (CG(active_class_entry)->ce_flags & ZEND_ACC_INTERFACE) { modifiers->u.constant.value.lval |= ZEND_ACC_ABSTRACT; method_type = "Interface"; } else { method_type = "Abstract"; }
if (modifiers->u.constant.value.lval & ZEND_ACC_ABSTRACT) { if (body->u.constant.value.lval == 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); } }}
void zend_do_assign(znode *result, znode *variable, znode *value TSRMLS_DC){ int last_op_number = get_next_op_number(CG(active_op_array))-1; zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC); zend_op *last_op = &CG(active_op_array)->opcodes[last_op_number];
if (last_op->opcode == ZEND_FETCH_OBJ_W) { last_op->opcode = ZEND_ASSIGN_OBJ;
zend_do_op_data(opline, value TSRMLS_CC); SET_UNUSED(opline->result); *result = last_op->result; } else if (last_op->opcode == ZEND_FETCH_DIM_W) { 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; } else { 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; }}
void zend_do_assign_ref(znode *result, znode *lvar, znode *rvar TSRMLS_DC){ zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
opline->opcode = ZEND_ASSIGN_REF; 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->parent = parent;}
static inline void do_end_loop(int cont_addr TSRMLS_DC){ 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(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(znode *while_token, 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 TSRMLS_CC);
DEC_BPC(CG(active_op_array));}
void zend_do_for_cond(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(znode *cond_start, 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(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 TSRMLS_CC);
DEC_BPC(CG(active_op_array));}
void zend_do_pre_incdec(znode *result, znode *op1, zend_uchar op TSRMLS_DC){ int last_op_number = get_next_op_number(CG(active_op_array))-1; zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC); zend_op *last_op = &CG(active_op_array)->opcodes[last_op_number];
if (last_op->opcode == ZEND_FETCH_OBJ_RW) { opline->opcode = (op==ZEND_PRE_INC)?ZEND_PRE_INC_OBJ:ZEND_PRE_DEC_OBJ; opline->op1 = last_op->op1; opline->op2 = last_op->op2; MAKE_NOP(last_op); } else { 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, znode *op1, zend_uchar op TSRMLS_DC){ int last_op_number = get_next_op_number(CG(active_op_array))-1; zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC); zend_op *last_op = &CG(active_op_array)->opcodes[last_op_number];
if (last_op->opcode == ZEND_FETCH_OBJ_RW) { opline->opcode = (op==ZEND_POST_INC)?ZEND_POST_INC_OBJ:ZEND_POST_DEC_OBJ; opline->op1 = last_op->op1; opline->op2 = last_op->op2; MAKE_NOP(last_op); } else { 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(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(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));}
#if 0
/* variable parsing type (compile-time) */#define ZEND_PARSED_MEMBER (1<<0)
#define ZEND_PARSED_METHOD_CALL (1<<1)
#define ZEND_PARSED_STATIC_MEMBER (1<<2)
#define ZEND_PARSED_FUNCTION_CALL (1<<3)
#define ZEND_PARSED_VARIABLE (1<<4)
#endif
void zend_check_writable_variable(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"); }}
zend_bool zend_is_function_or_method_call(znode *variable){ zend_uint type = variable->u.EA.type;
return ((type & ZEND_PARSED_METHOD_CALL) || (type == ZEND_PARSED_FUNCTION_CALL));}
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(int type, int arg_offset TSRMLS_DC){ zend_llist *fetch_list_ptr; zend_llist_element *le; zend_op *opline, *opline_ptr=NULL; int num_of_created_opcodes = 0;
zend_stack_top(&CG(bp_stack), (void **) &fetch_list_ptr);
le = fetch_list_ptr->head;
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)); 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: 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; num_of_created_opcodes++; }
if (num_of_created_opcodes == 1) { if ((opline_ptr->op1.op_type == IS_CONST) && (opline_ptr->op1.u.constant.type == IS_STRING) && (opline_ptr->op1.u.constant.value.str.len == (sizeof("this")-1)) && !memcmp(opline_ptr->op1.u.constant.value.str.val, "this", sizeof("this"))) { CG(active_op_array)->uses_this = 1; } }
zend_llist_destroy(fetch_list_ptr); zend_stack_del_top(&CG(bp_stack));}
void zend_do_init_string(znode *result TSRMLS_DC){ zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
opline->opcode = ZEND_INIT_STRING; 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); SET_UNUSED(opline->op2);}
void zend_do_add_char(znode *result, znode *op1, znode *op2 TSRMLS_DC){ zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
opline->opcode = ZEND_ADD_CHAR; opline->op1 = *op1; opline->op2 = *op2; opline->op2.op_type = IS_CONST; opline->result = opline->op1; *result = opline->result;}
void zend_do_add_string(znode *result, znode *op1, znode *op2 TSRMLS_DC){ zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
opline->opcode = ZEND_ADD_STRING; opline->op1 = *op1; opline->op2 = *op2; opline->op2.op_type = IS_CONST; opline->result = opline->op1; *result = opline->result;}
void zend_do_add_variable(znode *result, znode *op1, znode *op2 TSRMLS_DC){ zend_op *opline;
if (op1->op_type == IS_CONST) { opline = get_next_op(CG(active_op_array) TSRMLS_CC); opline->opcode = ZEND_INIT_STRING; 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); SET_UNUSED(opline->op2);
if (op1->u.constant.value.str.len>0) { opline = get_next_op(CG(active_op_array) TSRMLS_CC); opline->opcode = ZEND_ADD_STRING; opline->result = *result; opline->op1 = *result; opline->op2 = *op1; opline->result = opline->op1; } else { zval_dtor(&op1->u.constant); } } else { *result = *op1; }
opline = get_next_op(CG(active_op_array) TSRMLS_CC); opline->opcode = ZEND_ADD_VAR; opline->result = *result; opline->op1 = *result; opline->op2 = *op2; *result = opline->result;}
static void zend_lowercase_znode_if_const(znode *z){ if (z->op_type == IS_CONST) { zend_str_tolower(z->u.constant.value.str.val, z->u.constant.value.str.len); }}
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 == op1->op_type && opline->result.u.var == op1->u.var) { opline->result.u.EA.type |= EXT_TYPE_UNUSED; } else { while (opline>CG(active_op_array)->opcodes) { /* This should be an object instantiation
* Find JMP_NO_CTOR, mark the preceding ASSIGN and the * proceeding INIT_FCALL_BY_NAME as unused */ if (opline->opcode == ZEND_JMP_NO_CTOR) { (opline-1)->result.u.EA.type |= EXT_TYPE_UNUSED; (opline+1)->op1.u.EA.type |= EXT_TYPE_UNUSED; break; } else 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) { break; } opline--; } } } else if (op1->op_type == IS_CONST) { zval_dtor(&op1->u.constant); } }
int zend_do_verify_access_types(znode *current_access_type, znode *new_modifier){ if ((current_access_type->u.constant.value.lval & ZEND_ACC_PPP_MASK) && (new_modifier->u.constant.value.lval & ZEND_ACC_PPP_MASK) && ((current_access_type->u.constant.value.lval & ZEND_ACC_PPP_MASK) != (new_modifier->u.constant.value.lval & ZEND_ACC_PPP_MASK))) { zend_error(E_COMPILE_ERROR, "Multiple access type modifiers are not allowed"); } if (((current_access_type->u.constant.value.lval | new_modifier->u.constant.value.lval) & (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 (current_access_type->u.constant.value.lval | new_modifier->u.constant.value.lval);}
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;
if (is_method) { if (CG(active_class_entry)->ce_flags & ZEND_ACC_INTERFACE) { if (!(fn_flags_znode->u.constant.value.lval & ZEND_ACC_PUBLIC)) { zend_error(E_COMPILE_ERROR, "Access type for interface method %s::%s() must be omitted or declared public", CG(active_class_entry)->name, function_name->u.constant.value.str.val); } fn_flags_znode->u.constant.value.lval |= ZEND_ACC_ABSTRACT; /* propagates to the rest of the parser */ } fn_flags = fn_flags_znode->u.constant.value.lval; /* must be done *after* the above check */ } else { fn_flags = 0; }
function_token->u.op_array = CG(active_op_array); zend_str_tolower(name, name_len);
init_op_array(&op_array, ZEND_USER_FUNCTION, INITIAL_OP_ARRAY_SIZE TSRMLS_CC);
op_array.function_name = name; op_array.return_reference = return_reference; op_array.fn_flags = fn_flags;
op_array.scope = CG(active_class_entry); op_array.prototype = NULL;
op_array.line_start = zend_get_compiled_lineno(TSRMLS_C);
if (is_method) { char *short_class_name = CG(active_class_entry)->name; int short_class_name_length = CG(active_class_entry)->name_length; zend_uint i;
for (i=0; i < CG(active_class_entry)->name_length; i++) { if (CG(active_class_entry)->name[i] == ':') { short_class_name = &CG(active_class_entry)->name[i+1]; short_class_name_length = strlen(short_class_name); } } if (zend_hash_add(&CG(active_class_entry)->function_table, name, name_len+1, &op_array, sizeof(zend_op_array), (void **) &CG(active_op_array)) == FAILURE) { zend_op_array *child_op_array, *parent_op_array; if (CG(active_class_entry)->parent && (zend_hash_find(&CG(active_class_entry)->function_table, name, name_len+1, (void **) &child_op_array) == SUCCESS) && (zend_hash_find(&CG(active_class_entry)->parent->function_table, name, name_len+1, (void **) &parent_op_array) == SUCCESS) && (child_op_array == parent_op_array)) { zend_hash_update(&CG(active_class_entry)->function_table, name, name_len+1, &op_array, sizeof(zend_op_array), (void **) &CG(active_op_array)); } else { 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_ABSTRACT; }
if (!(fn_flags & ZEND_ACC_PPP_MASK)) { fn_flags |= ZEND_ACC_PUBLIC; }
if ((short_class_name_length == name_len) && (!memcmp(short_class_name, name, name_len)) && !CG(active_class_entry)->constructor) { CG(active_class_entry)->constructor = (zend_function *) CG(active_op_array); } else if ((function_name->u.constant.value.str.len == sizeof(ZEND_CONSTRUCTOR_FUNC_NAME)-1) && (!memcmp(function_name->u.constant.value.str.val, ZEND_CONSTRUCTOR_FUNC_NAME, sizeof(ZEND_CONSTRUCTOR_FUNC_NAME)))) { CG(active_class_entry)->constructor = (zend_function *) CG(active_op_array); } else if ((function_name->u.constant.value.str.len == sizeof(ZEND_DESTRUCTOR_FUNC_NAME)-1) && (!memcmp(function_name->u.constant.value.str.val, ZEND_DESTRUCTOR_FUNC_NAME, sizeof(ZEND_DESTRUCTOR_FUNC_NAME)))) { CG(active_class_entry)->destructor = (zend_function *) CG(active_op_array); } else if ((function_name->u.constant.value.str.len == sizeof(ZEND_CLONE_FUNC_NAME)-1) && (!memcmp(function_name->u.constant.value.str.val, ZEND_CLONE_FUNC_NAME, sizeof(ZEND_CLONE_FUNC_NAME)))) { CG(active_class_entry)->clone = (zend_function *) CG(active_op_array); } else if ((function_name->u.constant.value.str.len == sizeof(ZEND_CALL_FUNC_NAME)-1) && (!memcmp(function_name->u.constant.value.str.val, ZEND_CALL_FUNC_NAME, sizeof(ZEND_CALL_FUNC_NAME)))) { CG(active_class_entry)->__call = (zend_function *) CG(active_op_array); } else if ((function_name->u.constant.value.str.len == sizeof(ZEND_GET_FUNC_NAME)-1) && (!memcmp(function_name->u.constant.value.str.val, ZEND_GET_FUNC_NAME, sizeof(ZEND_GET_FUNC_NAME)))) { CG(active_class_entry)->__get = (zend_function *) CG(active_op_array); } else if ((function_name->u.constant.value.str.len == sizeof(ZEND_SET_FUNC_NAME)-1) && (!memcmp(function_name->u.constant.value.str.val, ZEND_SET_FUNC_NAME, sizeof(ZEND_SET_FUNC_NAME)))) { CG(active_class_entry)->__set = (zend_function *) CG(active_op_array); } } else { zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
opline->opcode = ZEND_DECLARE_FUNCTION; opline->op1.op_type = IS_CONST; build_runtime_defined_function_key(&opline->op1.u.constant, function_name->u.constant.value.str.val, function_name->u.constant.value.str.len, opline TSRMLS_CC); opline->op2.op_type = IS_CONST; opline->op2.u.constant.type = IS_STRING; opline->op2.u.constant.value.str.val = estrndup(name, name_len); opline->op2.u.constant.value.str.len = name_len; opline->op2.u.constant.refcount = 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(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));
zend_stack_push(&CG(foreach_copy_stack), (void *) &switch_entry.cond, sizeof(znode)); } function_token->throw_list = CG(throw_list); CG(throw_list) = NULL;
if (CG(doc_comment)) { CG(active_op_array)->doc_comment = estrndup(CG(doc_comment), CG(doc_comment_len)); CG(active_op_array)->doc_comment_len = CG(doc_comment_len); RESET_DOC_COMMENT(); }}
void zend_do_end_function_declaration(znode *function_token TSRMLS_DC){ zend_do_extended_info(TSRMLS_C); zend_do_return(NULL, 0 TSRMLS_CC); pass_two(CG(active_op_array) TSRMLS_CC); 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));
CG(throw_list) = function_token->throw_list;}
void zend_do_receive_arg(zend_uchar op, znode *var, znode *offset, znode *initialization, znode *class_type, znode *varname, zend_uchar pass_by_reference TSRMLS_DC){ zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC); zend_arg_info *cur_arg_info;
CG(active_op_array)->num_args++; opline->opcode = op; opline->result = *var; opline->op1 = *offset; if ((op == ZEND_RECV_INIT)) { opline->op2 = *initialization; } else { 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->allow_null = 1; cur_arg_info->pass_by_reference = pass_by_reference;
if (class_type->op_type != IS_UNUSED) { 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; zend_str_tolower(cur_arg_info->class_name, cur_arg_info->class_name_len); } else { cur_arg_info->class_name = NULL; cur_arg_info->class_name_len = 0; opline->result.u.EA.type |= EXT_TYPE_UNUSED; }}
int zend_do_begin_function_call(znode *function_name TSRMLS_DC){ zend_function *function; zend_str_tolower(function_name->u.constant.value.str.val, function_name->u.constant.value.str.len); if (zend_hash_find(CG(function_table), function_name->u.constant.value.str.val, function_name->u.constant.value.str.len+1, (void **) &function)==FAILURE) { zend_do_begin_dynamic_function_call(function_name TSRMLS_CC); return 1; /* Dynamic */ } switch (function->type) { case ZEND_USER_FUNCTION: { zend_op_array *op_array = (zend_op_array *) function; zend_stack_push(&CG(function_call_stack), (void *) &op_array, sizeof(zend_function *)); } break; case ZEND_INTERNAL_FUNCTION: { zend_internal_function *internal_function = (zend_internal_function *) function; zend_stack_push(&CG(function_call_stack), (void *) &internal_function, sizeof(zend_function *)); } break; } 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(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.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)) { last_op->opcode = ZEND_CLONE; left_bracket->op_type = IS_UNUSED; zval_dtor(&last_op->op2.u.constant); SET_UNUSED(last_op->op2); left_bracket->u.constant.value.lval = get_next_op_number(CG(active_op_array))-1; zend_stack_push(&CG(function_call_stack), (void *) &ptr, sizeof(zend_function *)); zend_do_extended_fcall_begin(TSRMLS_C); return; }
last_op->opcode = ZEND_INIT_METHOD_CALL;
left_bracket->u.constant.value.lval = ZEND_INIT_FCALL_BY_NAME;
zend_stack_push(&CG(function_call_stack), (void *) &ptr, sizeof(zend_function *)); zend_do_extended_fcall_begin(TSRMLS_C); } void zend_do_begin_dynamic_function_call(znode *function_name TSRMLS_DC){ unsigned char *ptr = NULL; zend_op *opline;
opline = get_next_op(CG(active_op_array) TSRMLS_CC); opline->opcode = ZEND_INIT_FCALL_BY_NAME; opline->op2 = *function_name; 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_fetch_class(znode *result, znode *class_name TSRMLS_DC){ long fetch_class_op_number; zend_op *opline;
fetch_class_op_number = get_next_op_number(CG(active_op_array)); opline = get_next_op(CG(active_op_array) TSRMLS_CC);
opline->opcode = ZEND_FETCH_CLASS; SET_UNUSED(opline->op1); opline->extended_value = ZEND_FETCH_CLASS_GLOBAL; CG(catch_begin) = fetch_class_op_number; if (class_name->op_type == IS_CONST) { int fetch_type;
zend_str_tolower(class_name->u.constant.value.str.val, class_name->u.constant.value.str.len); 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: SET_UNUSED(opline->op2); opline->extended_value = fetch_type; zval_dtor(&class_name->u.constant); break; default: opline->op2 = *class_name; break; } } else { opline->op2 = *class_name; } opline->result.u.var = get_temporary_variable(CG(active_op_array)); opline->result.op_type = IS_CONST; /* FIXME: Hack so that INIT_FCALL_BY_NAME still knows this is a class */ *result = opline->result;}
void zend_do_fetch_class_name(znode *result, znode *class_name_entry, znode *class_name, zend_bool case_sensitive TSRMLS_DC){ zend_uint length;
if (!result) { result = class_name_entry; } else { *result = *class_name_entry; } if (!case_sensitive) { zend_str_tolower(class_name->u.constant.value.str.val, class_name->u.constant.value.str.len); }
length = sizeof("::")-1 + result->u.constant.value.str.len + class_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], class_name->u.constant.value.str.val, class_name->u.constant.value.str.len+1); STR_FREE(class_name->u.constant.value.str.val); result->u.constant.value.str.len = length;}
void zend_do_begin_class_member_function_call(TSRMLS_D){ unsigned char *ptr = NULL; long fetch_const_op_number = get_next_op_number(CG(active_op_array)); zend_op *opline = &CG(active_op_array)->opcodes[fetch_const_op_number-1];
/* a tmp var is leaked here */ opline->opcode = ZEND_INIT_STATIC_METHOD_CALL; if(opline->op2.op_type == IS_CONST && (sizeof(ZEND_CONSTRUCTOR_FUNC_NAME)-1) == Z_STRLEN(opline->op2.u.constant) && memcmp(Z_STRVAL(opline->op2.u.constant), ZEND_CONSTRUCTOR_FUNC_NAME, sizeof(ZEND_CONSTRUCTOR_FUNC_NAME)-1) == 0) { zval_dtor(&opline->op2.u.constant); SET_UNUSED(opline->op2); } else { zend_lowercase_znode_if_const(&opline->op2); }
zend_stack_push(&CG(function_call_stack), (void *) &ptr, sizeof(zend_function *));}
void zend_do_end_function_call(znode *function_name, znode *result, 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 (argument_list->u.constant.value.lval != 0) { zend_error(E_WARNING, "Clone method does not require arguments"); } opline = &CG(active_op_array)->opcodes[function_name->u.constant.value.lval]; } 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; } 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);
/* Check how much this is really needed
opline->op2.u.constant.value.lval = is_method; */ if (CG(throw_list) != NULL) { long op_number = get_next_op_number(CG(active_op_array))-1; zend_llist_add_element(CG(throw_list), &op_number); } else { opline->op2.u.opline_num = -1; }
zend_stack_del_top(&CG(function_call_stack)); opline->extended_value = argument_list->u.constant.value.lval;}
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; zend_stack_top(&CG(function_call_stack), (void **) &function_ptr_ptr); function_ptr = *function_ptr_ptr;
if (original_op==ZEND_SEND_REF && !CG(allow_call_time_pass_reference)) { zend_error(E_COMPILE_WARNING, "Call-time pass-by-reference has been deprecated - argument passed by value; " "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. " "However, future versions may not support this any longer. ", (function_ptr?function_ptr->common.function_name:"[runtime function name]"), offset+1); }
if (function_ptr) { 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; } else if (op == ZEND_SEND_VAL && param->op_type == IS_VAR) { 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: 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(BP_VAR_R, 0 TSRMLS_CC); break; case ZEND_SEND_VAR: if (function_ptr) { zend_do_end_variable_parse(BP_VAR_R, 0 TSRMLS_CC); } else { zend_do_end_variable_parse(BP_VAR_FUNC_ARG, offset TSRMLS_CC); } break; case ZEND_SEND_REF: zend_do_end_variable_parse(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; } else { opline->extended_value = 0; } } 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(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 1; } opline = get_next_op(CG(active_op_array) TSRMLS_CC);
opline->opcode = ZEND_SWITCH_FREE; opline->op1 = switch_entry->cond; SET_UNUSED(opline->op2); opline->extended_value = 0; return 0;}
static int generate_free_foreach_copy(znode *foreach_copy TSRMLS_DC){ zend_op *opline; if (foreach_copy->op_type!=IS_VAR && foreach_copy->op_type!=IS_TMP_VAR) { return 1; }
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
opline->opcode = ZEND_SWITCH_FREE; opline->op1 = *foreach_copy; SET_UNUSED(opline->op2); opline->extended_value = 1; return 0;}
void zend_do_return(znode *expr, int do_end_vparse TSRMLS_DC){ zend_op *opline; if (do_end_vparse) { if (CG(active_op_array)->return_reference && !zend_is_function_or_method_call(expr)) { zend_do_end_variable_parse(BP_VAR_W, 0 TSRMLS_CC); } else { zend_do_end_variable_parse(BP_VAR_R, 0 TSRMLS_CC); }#if 0
} else if (expr && CG(active_op_array)->return_reference) { zend_error(E_COMPILE_ERROR, "Only variables may be returned by reference");#endif
}
#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
opline = get_next_op(CG(active_op_array) TSRMLS_CC);
opline->opcode = ZEND_RETURN; if (expr) { opline->op1 = *expr; } else { opline->op1.op_type = IS_CONST; INIT_ZVAL(opline->op1.u.constant); } SET_UNUSED(opline->op2);}
void zend_do_try(znode *try_token TSRMLS_DC){ try_token->throw_list = (void *) CG(throw_list); CG(throw_list) = (zend_llist *) emalloc(sizeof(zend_llist)); zend_llist_init(CG(throw_list), sizeof(long), NULL, 0); /* Initialize try backpatch list used to backpatch throw, do_fcall */}
static void throw_list_applier(long *opline_num, long *catch_opline){ zend_op *opline; TSRMLS_FETCH(); /* Pass this by argument */
opline = &CG(active_op_array)->opcodes[*opline_num];
/* Backpatch the opline of the catch statement */ switch (opline->opcode) { case ZEND_DO_FCALL: case ZEND_DO_FCALL_BY_NAME: case ZEND_THROW: case ZEND_CLONE: opline->op2.u.opline_num = *catch_opline; break; default: zend_error(E_COMPILE_ERROR, "Bad opcode in throw list"); break; }}
void zend_do_begin_catch(znode *try_token, znode *catch_class, znode *catch_var, zend_bool first_catch TSRMLS_DC){ long catch_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_CATCH; opline->op1 = *catch_class; SET_UNUSED(opline->op1); /* FIXME: Define IS_CLASS or something like that */ opline->op2 = *catch_var;
if (first_catch) { zend_llist_apply_with_argument(CG(throw_list), (llist_apply_with_arg_func_t) throw_list_applier, &CG(catch_begin) TSRMLS_CC); zend_llist_destroy(CG(throw_list)); efree(CG(throw_list)); CG(throw_list) = (void *) try_token->throw_list; } try_token->u.opline_num = catch_op_number;}
void zend_do_end_catch(znode *try_token TSRMLS_DC){ CG(active_op_array)->opcodes[try_token->u.opline_num].extended_value = get_next_op_number(CG(active_op_array));}
void zend_do_throw(znode *expr TSRMLS_DC){ zend_op *opline; long throw_op_number = get_next_op_number(CG(active_op_array)); opline = get_next_op(CG(active_op_array) TSRMLS_CC); opline->opcode = ZEND_THROW; opline->op1 = *expr; SET_UNUSED(opline->op2); if (CG(throw_list) != NULL) { zend_llist_add_element(CG(throw_list), &throw_op_number); } else { opline->op2.u.opline_num = -1; }}
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, 2, 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; } if (!ce->__get) { ce->__get = ce->parent->__get; } if (!ce->__set) { ce->__set = ce->parent->__set; } if (!ce->__call) { ce->__call = ce->parent->__call; } ce->create_object = ce->parent->create_object; if (ce->constructor) { 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 cconstructor */ if (!zend_hash_exists(&ce->function_table, ce->name, ce->name_length+1)) { if (zend_hash_find(&ce->parent->function_table, ce->parent->name, ce->parent->name_length+1, (void **) &function)==SUCCESS) { /* inherit parent's constructor */ zend_hash_update(&ce->function_table, ce->name, ce->name_length+1, function, sizeof(zend_function), NULL); function_add_ref(function); } } } 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(zend_function *fe){ zend_uint i;
if (!fe->common.prototype) { return 1; }
if (fe->common.num_args != fe->common.prototype->common.num_args || fe->common.pass_rest_by_reference != fe->common.prototype->common.pass_rest_by_reference) { return 0; }
for (i=0; i< fe->common.num_args; i++) { if (strcmp(fe->common.arg_info[i].class_name, fe->common.prototype->common.arg_info[i].class_name)!=0) { return 0; } if (fe->common.arg_info[i].pass_by_reference != fe->common.prototype->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, 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;
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_ABSTRACT; } return 1; /* method doesn't exist in child, copy from parent */ }
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_ABSTRACT|ZEND_ACC_ABSTRACT)) { child->common.prototype = parent; } else if (parent->common.prototype) { child->common.prototype = parent->common.prototype; }
if (!zend_do_perform_implementation_check(child)) { zend_error(E_COMPILE_ERROR, "Declaration of %s::%s() must be the same as %s::%s()", ZEND_FN_SCOPE_NAME(child), child->common.function_name, ZEND_FN_SCOPE_NAME(child->common.prototype), child->common.prototype->common.function_name); }
return 0;}
static zend_bool do_inherit_property_access_check(HashTable *target_ht, zend_property_info *parent_info, 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) { 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; } 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 ((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) { /* Explicitly copy the value from the parent */ zval **pvalue;
if (zend_hash_quick_find(&parent_ce->default_properties, hash_key->arKey, hash_key->nKeyLength, hash_key->h, (void **) &pvalue)==SUCCESS) { zend_hash_quick_update(&ce->default_properties, hash_key->arKey, hash_key->nKeyLength, hash_key->h, pvalue, sizeof(zval *), NULL); (*pvalue)->refcount++; } return 1; /* Inherit from the parent */ } return 0; /* Don't copy from parent */ } else { return 1; /* Copy from parent */ }}
ZEND_API void zend_do_inherit_interfaces(zend_class_entry *ce, zend_class_entry *ce2){ int num = ce2->num_interfaces;
if (num) { if (ce->type == ZEND_INTERNAL_CLASS) { ce->interfaces = (zend_class_entry **) realloc(ce->interfaces, sizeof(zend_class_entry *) * (ce->num_interfaces + num)); } else { ce->interfaces = (zend_class_entry **) erealloc(ce->interfaces, sizeof(zend_class_entry *) * (ce->num_interfaces + num)); } memcpy(&ce->interfaces[ce->num_interfaces], ce2->interfaces, num * sizeof(zend_class_entry*)); ce->num_interfaces += num; }}
void zend_do_inheritance(zend_class_entry *ce, zend_class_entry *parent_ce){ if ((ce->ce_flags & ZEND_ACC_INTERFACE) && !(parent_ce->ce_flags & ZEND_ACC_INTERFACE)) { zend_error(E_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_ERROR, "Class %s may not inherit from final class (%s)", ce->name, parent_ce->name); }
ce->parent = parent_ce; /* Inherit interfaces */ zend_do_inherit_interfaces(ce, parent_ce);
/* Inherit properties */ zend_hash_merge(&ce->default_properties, &parent_ce->default_properties, (void (*)(void *)) zval_add_ref, NULL, sizeof(zval *), 0); zend_hash_merge_ex(&ce->properties_info, &parent_ce->properties_info, (copy_ctor_func_t) zend_duplicate_property_info, sizeof(zend_property_info), (merge_checker_func_t) do_inherit_property_access_check, ce);
/* STATIC_MEMBERS_FIXME *//* zend_hash_merge(ce->static_members, parent_ce->static_members, (void (*)(void *)) zval_add_ref, (void *) &tmp, sizeof(zval *), 0); */ zend_hash_merge(&ce->constants_table, &parent_ce->constants_table, (void (*)(void *)) zval_add_ref, 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);}
ZEND_API void zend_do_implement_interface(zend_class_entry *ce, zend_class_entry *iface){ zend_hash_merge(&ce->constants_table, &iface->constants_table, (void (*)(void *)) zval_add_ref, NULL, sizeof(zval *), 0); 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);
zend_do_inherit_interfaces(ce, iface);}
ZEND_API int do_bind_function(zend_op *opline, HashTable *function_table, HashTable *class_table, int compile_time){ zend_function *function;
if (opline->opcode != ZEND_DECLARE_FUNCTION) { zend_error(E_COMPILE_ERROR, "Internal compiler error. Please report!"); }
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 *function;
if (zend_hash_find(function_table, opline->op2.u.constant.value.str.val, opline->op2.u.constant.value.str.len+1, (void *) &function)==SUCCESS && function->type==ZEND_USER_FUNCTION && ((zend_op_array *) function)->last>0) { zend_error(error_level, "Cannot redeclare %s() (previously declared in %s:%d)", opline->op2.u.constant.value.str.val, ((zend_op_array *) function)->filename, ((zend_op_array *) function)->opcodes[0].lineno); } else { zend_error(error_level, "Cannot redeclare %s()", opline->op2.u.constant.value.str.val); } 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(zend_op *opline, HashTable *function_table, HashTable *class_table 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--; zend_error(E_COMPILE_ERROR, "Cannot redeclare class %s", opline->op2.u.constant.value.str.val); return NULL; } else { return ce; }}
ZEND_API zend_class_entry *do_bind_inherited_class(zend_op *opline, HashTable *function_table, HashTable *class_table, zend_class_entry *parent_ce 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) { zend_error(E_COMPILE_ERROR, "Cannot redeclare class %s", opline->op2.u.constant.value.str.val); return NULL; } else { ce = *pce; }
zend_do_inheritance(ce, parent_ce);
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", opline->op2.u.constant.value.str.val); ce->refcount--; zend_hash_destroy(&ce->function_table); zend_hash_destroy(&ce->default_properties); zend_hash_destroy(&ce->properties_info); zend_hash_destroy(ce->static_members); zend_hash_destroy(&ce->constants_table); return NULL; } return ce;}
void zend_do_early_binding(TSRMLS_D){ zend_op *opline = &CG(active_op_array)->opcodes[CG(active_op_array)->last-1];
while (opline->opcode == ZEND_TICKS && opline > CG(active_op_array)->opcodes) { opline--; }
if (do_bind_function(opline, CG(function_table), CG(class_table), 1) == FAILURE) { return; }
zend_hash_del(CG(function_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); opline->opcode = ZEND_NOP; memset(&opline->op1, 0, sizeof(znode)); memset(&opline->op2, 0, sizeof(znode)); SET_UNUSED(opline->op1); SET_UNUSED(opline->op2);}
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, znode *expr1, 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, znode *expr1, 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_do_while_begin(TSRMLS_D){ do_begin_loop(TSRMLS_C); INC_BPC(CG(active_op_array));}
void zend_do_do_while_end(znode *do_token, znode *expr_open_bracket, 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 TSRMLS_CC);
DEC_BPC(CG(active_op_array));}
void zend_do_brk_cont(zend_uchar op, 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 { opline->op2.u.constant.type = IS_LONG; opline->op2.u.constant.value.lval = 1; INIT_PZVAL(&opline->op2.u.constant); opline->op2.op_type = IS_CONST; }}
void zend_do_switch_cond(znode *cond TSRMLS_DC){ zend_switch_entry switch_entry; zend_op *opline;
/* Initialize the conditional value */ opline = get_next_op(CG(active_op_array) TSRMLS_CC); opline->opcode = ZEND_BOOL; opline->result.u.var = get_temporary_variable(CG(active_op_array)); opline->result.op_type = IS_TMP_VAR; opline->op1.op_type = IS_CONST; opline->op1.u.constant.type = IS_BOOL; opline->op1.u.constant.value.lval = 0; INIT_PZVAL(&opline->op1.u.constant); SET_UNUSED(opline->op2);
switch_entry.cond = *cond; switch_entry.default_case = -1; switch_entry.control_var = opline->result.u.var; 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(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);
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; }
/* 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_JMPZ; opline->op1.op_type = IS_TMP_VAR; opline->op1.u.var = switch_entry_ptr->control_var; opline->op2.u.opline_num = switch_entry_ptr->default_case; SET_UNUSED(opline->op2); }
/* 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 = 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(znode *case_list, znode *case_token, 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);
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, 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(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)); opline = get_next_op(CG(active_op_array) TSRMLS_CC); opline->opcode = ZEND_BOOL; opline->result.u.var = switch_entry_ptr->control_var; opline->result.op_type = IS_TMP_VAR; opline->op1.op_type = IS_CONST; opline->op1.u.constant.type = IS_BOOL; opline->op1.u.constant.value.lval = 1; INIT_PZVAL(&opline->op1.u.constant); SET_UNUSED(opline->op2); switch_entry_ptr->default_case = 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_begin_class_declaration(znode *class_token, znode *class_name, znode *parent_class_name TSRMLS_DC){ zend_op *opline; int doing_inheritance = 0; zend_class_entry *new_class_entry = emalloc(sizeof(zend_class_entry));
zend_str_tolower(class_name->u.constant.value.str.val, class_name->u.constant.value.str.len);
if (!(strcmp(class_name->u.constant.value.str.val, "self") && strcmp(class_name->u.constant.value.str.val, "parent"))) { zend_error(E_COMPILE_ERROR, "Cannot use '%s' as class name as it is reserved", class_name->u.constant.value.str.val); }
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 = zend_get_compiled_lineno(TSRMLS_C); new_class_entry->ce_flags |= class_token->u.constant.value.lval;
if (parent_class_name->op_type != IS_UNUSED) { doing_inheritance = 1; }
zend_str_tolower(new_class_entry->name, new_class_entry->name_length); 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, new_class_entry->name, new_class_entry->name_length, opline TSRMLS_CC); opline->op2.op_type = IS_CONST; opline->op2.u.constant.type = IS_STRING; opline->op2.u.constant.refcount = 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 = estrndup(new_class_entry->name, new_class_entry->name_length); 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_CONST; CG(implementing_class) = opline->result;
if (CG(doc_comment)) { CG(active_class_entry)->doc_comment = estrndup(CG(doc_comment), CG(doc_comment_len)); CG(active_class_entry)->doc_comment_len = CG(doc_comment_len); RESET_DOC_COMMENT(); }}
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);}
void zend_do_end_class_declaration(znode *class_token, znode *parent_token TSRMLS_DC){ zend_class_entry *ce = CG(active_class_entry);
do_inherit_parent_constructor(ce);
ce->line_end = zend_get_compiled_lineno(TSRMLS_C);
/* Inherit interfaces */ if (ce->num_interfaces > 0) { ce->interfaces = (zend_class_entry **) erealloc(ce->interfaces, sizeof(zend_class_entry *)*ce->num_interfaces); } if (!(ce->ce_flags & ZEND_ACC_INTERFACE) && !(ce->ce_flags & ZEND_ACC_ABSTRACT_CLASS) && ((parent_token->op_type != IS_UNUSED) || (ce->num_interfaces > 0))) { do_verify_abstract_class(TSRMLS_C); } CG(active_class_entry) = NULL;}
void zend_do_implements_interface(znode *interface_znode TSRMLS_DC){ zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
opline->opcode = ZEND_ADD_INTERFACE; opline->op1 = CG(implementing_class); opline->op2 = *interface_znode; opline->extended_value = CG(active_class_entry)->num_interfaces++;}
void mangle_property_name(char **dest, int *dest_length, char *src1, int src1_length, char *src2, int src2_length){ char *prop_name; int prop_name_length; prop_name_length = 1 + src1_length + 1 + src2_length; prop_name = emalloc(prop_name_length+1); 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;}
void unmangle_property_name(char *mangled_property, char **class_name, char **prop_name){ *prop_name = *class_name = NULL;
if (mangled_property[0]!=0) { *prop_name = mangled_property; return; }
*class_name = mangled_property+1; *prop_name = (*class_name)+strlen(*class_name)+1;}
void zend_do_declare_property(znode *var_name, znode *value, zend_uint access_type TSRMLS_DC){ zval *property; zend_property_info *existing_property_info;
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 $%s::%s final, the final modifier is allowed only for methods", CG(active_class_entry)->name, var_name->u.constant.value.str.val); }
if (zend_hash_find(&CG(active_class_entry)->properties_info, var_name->u.constant.value.str.val, var_name->u.constant.value.str.len+1, (void **) &existing_property_info)==SUCCESS) { if (!(existing_property_info->flags & ZEND_ACC_IMPLICIT_PUBLIC)) { zend_error(E_COMPILE_ERROR, "Cannot redeclare %s::$%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); property->type = IS_NULL; }
zend_declare_property(CG(active_class_entry), var_name->u.constant.value.str.val, var_name->u.constant.value.str.len, property, access_type); efree(var_name->u.constant.value.str.val);}
void zend_do_declare_class_constant(znode *var_name, znode *value TSRMLS_DC){ zval *property;
ALLOC_ZVAL(property);
if (value) { *property = value->u.constant; } else { INIT_PZVAL(property); property->type = IS_NULL; }
zend_hash_update(&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);
FREE_PNODE(var_name);}
void zend_do_fetch_property(znode *result, znode *object, znode *property TSRMLS_DC){ zend_op opline; zend_llist *fetch_list_ptr; zend_op *opline_ptr=NULL; zend_stack_top(&CG(bp_stack), (void **) &fetch_list_ptr); if (fetch_list_ptr->count == 1) { zend_llist_element *le;
le = fetch_list_ptr->head; opline_ptr = (zend_op *) le->data;
if ((opline_ptr->op1.op_type == IS_CONST) && (opline_ptr->op1.u.constant.type == IS_STRING) && (opline_ptr->op1.u.constant.value.str.len == (sizeof("this")-1)) && !memcmp(opline_ptr->op1.u.constant.value.str.val, "this", sizeof("this"))) { efree(opline_ptr->op1.u.constant.value.str.val); 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_declare_implicit_property(TSRMLS_D){ 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); }}
void zend_do_push_object(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 = get_next_op(CG(active_op_array) TSRMLS_CC); unsigned char *ptr = NULL; 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);
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_JMP_NO_CTOR; opline->op1 = (opline-1)->result; SET_UNUSED(opline->op2);
opline = get_next_op(CG(active_op_array) TSRMLS_CC); opline->opcode = ZEND_INIT_CTOR_CALL; opline->op1 = (opline-2)->result; SET_UNUSED(opline->op2); zend_stack_push(&CG(function_call_stack), (void *) &ptr, sizeof(unsigned char *));}
void zend_do_end_new_object(znode *result, znode *new_token, 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].op1;}
void zend_do_fold_constant(znode *result, znode *constant_name TSRMLS_DC){ zval **zresult; if (zend_hash_find(&CG(active_class_entry)->constants_table, constant_name->u.constant.value.str.val, constant_name->u.constant.value.str.len+1, (void **) &zresult) != SUCCESS) { if (zend_get_constant(constant_name->u.constant.value.str.val, constant_name->u.constant.value.str.len, &result->u.constant TSRMLS_CC)) { zval_dtor(&constant_name->u.constant); return; } else { zend_error(E_COMPILE_ERROR, "Cannot find %s constant in class %s\n", constant_name->u.constant.value.str.val, CG(active_class_entry)->name); } }
result->u.constant = **zresult; zval_copy_ctor(&result->u.constant); zval_dtor(&constant_name->u.constant);}
void zend_do_fetch_constant(znode *result, znode *constant_container, znode *constant_name, int mode TSRMLS_DC){ switch (mode) { case ZEND_CT: if (constant_container) { zend_str_tolower(constant_container->u.constant.value.str.val, constant_container->u.constant.value.str.len); zend_do_fetch_class_name(NULL, constant_container, constant_name, 1 TSRMLS_CC); *result = *constant_container; } else { *result = *constant_name; } result->u.constant.type = IS_CONSTANT; break; case ZEND_RT: { zend_op *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)); if (constant_container) { opline->op1 = *constant_container; } else { SET_UNUSED(opline->op1); } opline->op2 = *constant_name; *result = opline->result; } break; }}
void zend_do_shell_exec(znode *result, znode *cmd TSRMLS_DC){ zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
switch (cmd->op_type) { 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; opline->op1.u.constant.value.str.val = estrndup("shell_exec", sizeof("shell_exec")-1); opline->op1.u.constant.value.str.len = sizeof("shell_exec")-1; INIT_PZVAL(&opline->op1.u.constant); opline->op1.u.constant.type = IS_STRING; opline->op1.op_type = IS_CONST; opline->extended_value = 1; SET_UNUSED(opline->op2); *result = opline->result;}
void zend_do_init_array(znode *result, znode *expr, 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, znode *expr, 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, znode *expr){ zval *element;
ALLOC_ZVAL(element); *element = expr->u.constant; if (offset) { switch (offset->u.constant.type) { case IS_CONSTANT: /* Ugly hack to denote that this value has a constant index */ element->type |= IS_CONSTANT_INDEX; /* break missing intentionally */ 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_LONG: zend_hash_index_update(result->u.constant.value.ht, offset->u.constant.value.lval, &element, sizeof(zval *), NULL); break; } } else { zend_hash_next_index_insert(result->u.constant.value.ht, &element, sizeof(zval *), NULL); }}
void zend_do_add_list_element(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: 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; } } 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; opline->op2.u.constant.type = IS_LONG; opline->op2.u.constant.value.lval = *((int *) dimension->data); INIT_PZVAL(&opline->op2.u.constant); opline->extended_value = ZEND_FETCH_ADD_LOCK; 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_end_variable_parse(BP_VAR_W, 0 TSRMLS_CC); zend_do_assign(result, &((list_llist_element *) le->data)->var, &((list_llist_element *) le->data)->value TSRMLS_CC); CG(active_op_array)->opcodes[CG(active_op_array)->last-1].result.u.EA.type |= EXT_TYPE_UNUSED; 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, znode *static_assignment, int fetch_type TSRMLS_DC){ zval *tmp; zend_op *opline; znode lval; znode result;
ALLOC_ZVAL(tmp); convert_to_string(&varname->u.constant); 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);
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;
/* zval_dtor(&varname->u.constant); */}
void zend_do_fetch_global_variable(znode *varname, znode *static_assignment, int fetch_type TSRMLS_DC){ zend_op *opline; znode lval; znode result;
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, 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, 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); opline->op2.u.constant.value.lval = type; *result = opline->result; } zend_do_extended_fcall_end(TSRMLS_C);}
void zend_do_indirect_references(znode *result, znode *num_references, znode *variable TSRMLS_DC){ int i;
zend_do_end_variable_parse(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);}
void zend_do_unset(znode *variable TSRMLS_DC){ zend_op *last_op;
zend_check_writable_variable(variable);
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_OBJ; last_op->extended_value = ZEND_UNSET_DIM; break; case ZEND_FETCH_OBJ_UNSET: last_op->opcode = ZEND_UNSET_DIM_OBJ; last_op->extended_value = 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(BP_VAR_IS, 0 TSRMLS_CC);
zend_check_writable_variable(variable); 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: case ZEND_FETCH_OBJ_IS: last_op->opcode = ZEND_ISSET_ISEMPTY_DIM_OBJ; break; } last_op->result.op_type = IS_TMP_VAR; last_op->extended_value = type;
*result = last_op->result;}
void zend_do_instanceof(znode *result, znode *expr, znode *class_znode, int type TSRMLS_DC){ zend_op *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 *array, znode *open_brackets_token, znode *as_token, int variable TSRMLS_DC){ zend_op *opline; zend_bool is_variable;
if (variable) { if (zend_is_function_or_method_call(array)) { is_variable = 0; } else { is_variable = 1; } zend_do_end_variable_parse(BP_VAR_W, 0 TSRMLS_CC); } else { is_variable = 0; }
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; *open_brackets_token = opline->result;
zend_stack_push(&CG(foreach_copy_stack), (void *) &opline->result, sizeof(znode));
/* save the location of the beginning of the loop (array fetching) */ foreach_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_TMP_VAR; opline->result.u.var = get_temporary_variable(CG(active_op_array)); opline->op1 = *open_brackets_token; opline->extended_value = 0; SET_UNUSED(opline->op2); *as_token = opline->result;}
void zend_do_foreach_cont(znode *value, znode *key, znode *as_token, znode *foreach_token TSRMLS_DC){ zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC); znode result_value, result_key, dummy; zend_bool assign_by_ref=0;
if (key->op_type != IS_UNUSED) { znode *tmp;
/* switch between the key and value... */ tmp = key; key = value; value = tmp; }
if (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 (!CG(active_op_array)->opcodes[foreach_token->u.opline_num-1].extended_value) { zend_error(E_COMPILE_ERROR, "Cannot create references to elements of a temporary array expression"); } CG(active_op_array)->opcodes[foreach_token->u.opline_num].extended_value = 1; }
opline->opcode = ZEND_FETCH_DIM_TMP_VAR; opline->result.op_type = IS_VAR; opline->result.u.EA.type = 0; opline->result.u.opline_num = get_temporary_variable(CG(active_op_array)); opline->op1 = *as_token; opline->op2.op_type = IS_CONST; opline->op2.u.constant.type = IS_LONG; opline->op2.u.constant.value.lval = 0; opline->extended_value = ZEND_FETCH_STANDARD; /* ignored in fetch_dim_tmp_var, but what the hell. */ result_value = opline->result;
if (key->op_type != IS_UNUSED) { opline = get_next_op(CG(active_op_array) TSRMLS_CC); opline->opcode = ZEND_FETCH_DIM_TMP_VAR; opline->result.op_type = IS_VAR; opline->result.u.EA.type = 0; opline->result.u.opline_num = get_temporary_variable(CG(active_op_array)); opline->op1 = *as_token; opline->op2.op_type = IS_CONST; opline->op2.u.constant.type = IS_LONG; opline->op2.u.constant.value.lval = 1; opline->extended_value = ZEND_FETCH_STANDARD; /* ignored in fetch_dim_tmp_var, but what the hell. */ result_key = opline->result; }
if (assign_by_ref) { zend_do_assign_ref(&dummy, value, &result_value TSRMLS_CC); } else { zend_do_assign(&dummy, value, &result_value TSRMLS_CC); } CG(active_op_array)->opcodes[CG(active_op_array)->last-1].result.u.EA.type |= EXT_TYPE_UNUSED; if (key->op_type != IS_UNUSED) { zend_do_assign(&dummy, key, &result_key TSRMLS_CC); CG(active_op_array)->opcodes[CG(active_op_array)->last-1].result.u.EA.type |= EXT_TYPE_UNUSED; } zend_do_free(as_token TSRMLS_CC);
do_begin_loop(TSRMLS_C); INC_BPC(CG(active_op_array));}
void zend_do_foreach_end(znode *foreach_token, znode *open_brackets_token TSRMLS_DC){ zend_op *opline = get_next_op(CG(active_op_array) TSRMLS_CC);
opline->opcode = ZEND_JMP; opline->op1.u.opline_num = foreach_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));
do_end_loop(foreach_token->u.opline_num TSRMLS_CC);
generate_free_foreach_copy(open_brackets_token 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){ convert_to_string(&var->u.constant);
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; } zval_dtor(&var->u.constant);}
void zend_do_declare_end(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) - ((CG(declarables).ticks.value.lval)?1:0)) { CG(declarables) = *declarables; }}
void zend_do_end_heredoc(TSRMLS_D){ int opline_num = get_next_op_number(CG(active_op_array))-1; zend_op *opline = &CG(active_op_array)->opcodes[opline_num];
if (opline->opcode != ZEND_ADD_STRING) { return; }
opline->op2.u.constant.value.str.val[(opline->op2.u.constant.value.str.len--)-1] = 0; if (opline->op2.u.constant.value.str.len>0) { if (opline->op2.u.constant.value.str.val[opline->op2.u.constant.value.str.len-1]=='\r') { opline->op2.u.constant.value.str.val[(opline->op2.u.constant.value.str.len--)-1] = 0; } } }
void zend_do_exit(znode *result, 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; result->u.constant.type = IS_BOOL; result->u.constant.value.lval = 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(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_begin_qm_op(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(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, znode *false_value, znode *qm_token, 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(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(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(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 (CG(declarables).ticks.value.lval) { 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(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(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;
again: if (CG(increment_lineno)) { CG(zend_lineno)++; CG(increment_lineno) = 0; }
zendlval->u.constant.type = 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]=='\n' || (LANG_SCNG(yy_text)[LANG_SCNG(yy_leng)-2]=='\r' && LANG_SCNG(yy_text)[LANG_SCNG(yy_leng)-1])) { CG(increment_lineno) = 1; } retval = ';'; /* implicit ; */ break; case T_OPEN_TAG_WITH_ECHO: retval = T_ECHO; break; case T_END_HEREDOC: efree(zendlval->u.constant.value.str.val); break; } INIT_PZVAL(&zendlval->u.constant); zendlval->op_type = IS_CONST; return retval;}
void zend_duplicate_property_info(zend_property_info *property_info){ property_info->name = estrndup(property_info->name, property_info->name_length);}
void zend_destroy_property_info(zend_property_info *property_info){ efree(property_info->name);}
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;
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, persistent_hashes, 0); zend_hash_init_ex(&ce->properties_info, 0, NULL, (dtor_func_t) zend_destroy_property_info, persistent_hashes, 0);
if (persistent_hashes) { ce->static_members = (HashTable *) malloc(sizeof(HashTable)); } else { ALLOC_HASHTABLE(ce->static_members); } zend_hash_init_ex(ce->static_members, 0, NULL, ZVAL_PTR_DTOR, persistent_hashes, 0); zend_hash_init_ex(&ce->constants_table, 0, NULL, ZVAL_PTR_DTOR, persistent_hashes, 0); zend_hash_init_ex(&ce->function_table, 0, NULL, ZEND_FUNCTION_DTOR, persistent_hashes, 0);
if (nullify_handlers) { ce->constructor = NULL; ce->destructor = NULL; ce->clone = NULL; ce->__get = NULL; ce->__set = NULL; ce->__call = NULL; ce->create_object = NULL; }
ce->parent = NULL; ce->num_interfaces = 0; ce->interfaces = NULL;}
int zend_get_class_fetch_type(char *class_name, uint class_name_len){ if ((class_name_len == sizeof("self")-1) && !memcmp(class_name, "self", sizeof("self"))) { return ZEND_FETCH_CLASS_SELF; } else if ((class_name_len == sizeof("parent")-1) && !memcmp(class_name, "parent", sizeof("parent"))) { return ZEND_FETCH_CLASS_PARENT; } else { return ZEND_FETCH_CLASS_DEFAULT; }}
/*
* Local variables: * tab-width: 4 * c-basic-offset: 4 * indent-tabs-mode: t * End: */
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