mirror of
https://github.com/php/php-src.git
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613 lines
18 KiB
C
613 lines
18 KiB
C
/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) 1998, 1999 Andi Gutmans, Zeev Suraski |
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+----------------------------------------------------------------------+
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| This source file is subject to version 0.91 of the Zend license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available at through the world-wide-web at |
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| http://www.zend.com/license/0_91.txt. |
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| If you did not receive a copy of the Zend license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@zend.com so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Andi Gutmans <andi@zend.com> |
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| Zeev Suraski <zeev@zend.com> |
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+----------------------------------------------------------------------+
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*/
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#ifndef _COMPILE_H
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#define _COMPILE_H
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#include "zend.h"
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#ifdef HAVE_STDARG_H
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# include <stdarg.h>
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#endif
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#include "zend_llist.h"
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#define DEBUG_ZEND 0
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#ifndef ZTS
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# define SUPPORT_INTERACTIVE 1
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#else
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# define SUPPORT_INTERACTIVE 0
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#endif
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#define FREE_PNODE(znode) zval_dtor(&znode->u.constant);
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#define FREE_OP(op, should_free) if (should_free) zval_dtor(&Ts[(op)->u.var].tmp_var);
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#if SUPPORT_INTERACTIVE
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#define INC_BPC(op_array) ((op_array)->backpatch_count++)
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#define DEC_BPC(op_array) ((op_array)->backpatch_count--)
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#define HANDLE_INTERACTIVE() if (EG(interactive)) { execute_new_code(CLS_C); }
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#else
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#define INC_BPC(op_array)
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#define DEC_BPC(op_array)
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#define HANDLE_INTERACTIVE()
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#endif
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typedef struct _zend_op_array zend_op_array;
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typedef struct _znode {
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int op_type;
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union {
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zval constant;
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int var;
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int opline_num;
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int fetch_type;
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zend_op_array *op_array;
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struct {
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int var; /* dummy */
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int type;
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} EA;
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} u;
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} znode;
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typedef struct _zend_op {
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int opcode;
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znode result;
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znode op1;
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znode op2;
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ulong extended_value;
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char *filename;
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uint lineno;
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} zend_op;
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typedef struct _zend_brk_cont_element {
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int cont;
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int brk;
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int parent;
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} zend_brk_cont_element;
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struct _zend_op_array {
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int type; /* MUST be the first element of this struct! */
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unsigned char *arg_types; /* MUST be the second element of this struct! */
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char *function_name; /* MUST be the third element of this struct! */
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int *refcount;
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zend_op *opcodes;
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int last, size;
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int T;
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zend_brk_cont_element *brk_cont_array;
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int last_brk_cont;
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int current_brk_cont;
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unsigned char uses_globals;
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/* static variables support */
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HashTable *static_variables;
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#if SUPPORT_INTERACTIVE
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int start_op_number, end_op_number;
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int last_executed_op_number;
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int backpatch_count;
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#endif
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zend_bool return_reference;
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void *reserved[ZEND_MAX_RESERVED_RESOURCES];
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};
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typedef struct _zend_internal_function {
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int type; /* MUST be the first element of this struct! */
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unsigned char *arg_types; /* MUST be the second element of this struct */
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char *function_name; /* MUST be the third element of this struct */
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void (*handler)(INTERNAL_FUNCTION_PARAMETERS);
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} zend_internal_function;
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typedef union _zend_function {
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int type; /* MUST be the first element of this struct! */
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struct {
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int type; /* never used */
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unsigned char *arg_types;
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char *function_name;
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} common;
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zend_op_array op_array;
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zend_internal_function internal_function;
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} zend_function;
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typedef struct _zend_function_state {
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HashTable *function_symbol_table;
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zend_function *function;
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void *reserved[ZEND_MAX_RESERVED_RESOURCES];
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} zend_function_state;
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typedef struct _zend_switch_entry {
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znode cond;
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int default_case;
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int control_var;
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} zend_switch_entry;
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typedef struct _list_llist_element {
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znode var;
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zend_llist dimensions;
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znode value;
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} list_llist_element;
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typedef struct _zend_file_handle {
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int type;
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char *filename;
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char *opened_path;
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union {
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int fd;
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FILE *fp;
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#ifdef __cplusplus
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istream *is;
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#endif
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} handle;
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zend_bool free_filename;
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} zend_file_handle;
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#include "zend_globals.h"
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#define IS_CONST (1<<0)
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#define IS_TMP_VAR (1<<1)
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#define IS_VAR (1<<2)
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#define IS_UNUSED (1<<3) /* Unused variable */
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#define EXT_TYPE_UNUSED (1<<0)
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BEGIN_EXTERN_C()
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void init_compiler(CLS_D ELS_DC);
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void shutdown_compiler(CLS_D);
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extern ZEND_API zend_op_array *(*zend_compile_files)(int mark_as_ref CLS_DC, int file_count, ...);
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void zend_activate(CLS_D ELS_DC);
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void zend_deactivate(CLS_D ELS_DC);
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void zend_activate_modules();
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int lex_scan(zval *zendlval CLS_DC);
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void startup_scanner(CLS_D);
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void shutdown_scanner(CLS_D);
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ZEND_API char *zend_set_compiled_filename(char *new_compiled_filename);
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ZEND_API void zend_restore_compiled_filename(char *original_compiled_filename);
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ZEND_API char *zend_get_compiled_filename(CLS_D);
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ZEND_API int zend_get_compiled_lineno(CLS_D);
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#ifdef ZTS
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const char *zend_get_zendtext(CLS_D);
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int zend_get_zendleng(CLS_D);
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#endif
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/* parser-driven code generators */
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void do_binary_op(int op, znode *result, znode *op1, znode *op2 CLS_DC);
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void do_unary_op(int op, znode *result, znode *op1 CLS_DC);
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void do_binary_assign_op(int op, znode *result, znode *op1, znode *op2 CLS_DC);
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void do_assign(znode *result, znode *variable, znode *value CLS_DC);
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void do_assign_ref(znode *result, znode *lvar, znode *rvar CLS_DC);
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void fetch_simple_variable(znode *result, znode *varname, int bp CLS_DC);
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void fetch_simple_variable_ex(znode *result, znode *varname, int bp, int op CLS_DC);
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void do_indirect_references(znode *result, znode *num_references, znode *variable CLS_DC);
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void do_fetch_global_or_static_variable(znode *varname, znode *static_assignment, int fetch_type CLS_DC);
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void do_fetch_globals(znode *varname CLS_DC);
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void fetch_array_begin(znode *result, znode *varname, znode *first_dim CLS_DC);
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void fetch_array_dim(znode *result, znode *parent, znode *dim CLS_DC);
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void fetch_string_offset(znode *result, znode *parent, znode *offset CLS_DC);
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void do_print(znode *result, znode *arg CLS_DC);
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void do_echo(znode *arg CLS_DC);
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typedef int (*unary_op_type)(zval *, zval *);
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ZEND_API unary_op_type get_unary_op(int opcode);
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ZEND_API void *get_binary_op(int opcode);
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void do_while_cond(znode *expr, znode *close_bracket_token CLS_DC);
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void do_while_end(znode *while_token, znode *close_bracket_token CLS_DC);
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void do_do_while_begin(CLS_D);
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void do_do_while_end(znode *do_token, znode *expr_open_bracket, znode *expr CLS_DC);
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void do_if_cond(znode *cond, znode *closing_bracket_token CLS_DC);
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void do_if_after_statement(znode *closing_bracket_token, unsigned char initialize CLS_DC);
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void do_if_end(CLS_D);
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void do_for_cond(znode *expr, znode *second_semicolon_token CLS_DC);
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void do_for_before_statement(znode *cond_start, znode *second_semicolon_token CLS_DC);
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void do_for_end(znode *second_semicolon_token CLS_DC);
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void do_pre_incdec(znode *result, znode *op1, int op CLS_DC);
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void do_post_incdec(znode *result, znode *op1, int op CLS_DC);
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void do_begin_variable_parse(CLS_D);
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void do_end_variable_parse(int type, int arg_offset CLS_DC);
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void do_free(znode *op1 CLS_DC);
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void do_init_string(znode *result CLS_DC);
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void do_add_char(znode *result, znode *op1, znode *op2 CLS_DC);
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void do_add_string(znode *result, znode *op1, znode *op2 CLS_DC);
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void do_add_variable(znode *result, znode *op1, znode *op2 CLS_DC);
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void do_begin_function_declaration(znode *function_token, znode *function_name, int is_method, int return_reference CLS_DC);
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void do_end_function_declaration(znode *function_token CLS_DC);
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void do_receive_arg(int op, znode *var, znode *offset, znode *initialization, unsigned char pass_type CLS_DC);
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int do_begin_function_call(znode *function_name CLS_DC);
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void do_begin_dynamic_function_call(znode *function_name CLS_DC);
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void do_begin_class_member_function_call(znode *class_name, znode *function_name CLS_DC);
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void do_end_function_call(znode *function_name, znode *result, znode *argument_list, int is_method, int is_dynamic_fcall CLS_DC);
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void do_return(znode *expr, int do_end_vparse CLS_DC);
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ZEND_API int do_bind_function_or_class(zend_op *opline, HashTable *function_table, HashTable *class_table, int compile_time);
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void do_early_binding(CLS_D);
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void do_pass_param(znode *param, int op, int offset CLS_DC);
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void do_boolean_or_begin(znode *expr1, znode *op_token CLS_DC);
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void do_boolean_or_end(znode *result, znode *expr1, znode *expr2, znode *op_token CLS_DC);
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void do_boolean_and_begin(znode *expr1, znode *op_token CLS_DC);
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void do_boolean_and_end(znode *result, znode *expr1, znode *expr2, znode *op_token CLS_DC);
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void do_brk_cont(int op, znode *expr CLS_DC);
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void do_switch_cond(znode *cond CLS_DC);
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void do_switch_end(znode *case_list CLS_DC);
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void do_case_before_statement(znode *case_list, znode *case_token, znode *case_expr CLS_DC);
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void do_case_after_statement(znode *result, znode *case_token CLS_DC);
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void do_default_before_statement(znode *case_list, znode *default_token CLS_DC);
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void do_begin_class_declaration(znode *class_name, znode *parent_class_name CLS_DC);
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void do_end_class_declaration(CLS_D);
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void do_declare_property(znode *var_name, znode *value CLS_DC);
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void do_fetch_property(znode *result, znode *object, znode *property CLS_DC);
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void do_push_object(znode *object CLS_DC);
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void do_pop_object(znode *object CLS_DC);
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void do_begin_new_object(znode *new_token, znode *class_name CLS_DC);
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void do_end_new_object(znode *result, znode *class_name, znode *new_token, znode *argument_list CLS_DC);
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void do_fetch_constant(znode *result, znode *constant_name, int mode CLS_DC);
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void do_shell_exec(znode *result, znode *cmd CLS_DC);
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void do_init_array(znode *result, znode *expr, znode *offset, int is_ref CLS_DC);
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void do_add_array_element(znode *result, znode *expr, znode *offset, int is_ref CLS_DC);
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void do_add_static_array_element(znode *result, znode *offset, znode *expr);
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void do_list_init(CLS_D);
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void do_list_end(znode *result, znode *expr CLS_DC);
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void do_add_list_element(znode *element CLS_DC);
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void do_new_list_begin(CLS_D);
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void do_new_list_end(CLS_D);
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void do_cast(znode *result, znode *expr, int type CLS_DC);
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void do_include_or_eval(int type, znode *result, znode *op1 CLS_DC);
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void do_require(znode *filename CLS_DC);
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void do_unset(znode *variable CLS_DC);
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void do_isset_or_isempty(int type, znode *result, znode *variable CLS_DC);
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void do_foreach_begin(znode *foreach_token, znode *array, znode *open_brackets_token, znode *as_token CLS_DC);
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void do_foreach_cont(znode *value, znode *key, znode *as_token CLS_DC);
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void do_foreach_end(znode *foreach_token, znode *open_brackets_token CLS_DC);
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void do_declare_begin(CLS_D);
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void do_declare_stmt(znode *var, znode *val CLS_DC);
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void do_declare_end(CLS_D);
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void do_end_heredoc(CLS_D);
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void do_exit(znode *result, znode *message CLS_DC);
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void do_begin_silence(znode *strudel_token CLS_DC);
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void do_end_silence(znode *strudel_token CLS_DC);
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void do_begin_qm_op(znode *cond, znode *qm_token CLS_DC);
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void do_qm_true(znode *true_value, znode *qm_token, znode *colon_token CLS_DC);
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void do_qm_false(znode *result, znode *false_value, znode *qm_token, znode *colon_token CLS_DC);
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void do_extended_info(CLS_D);
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void do_extended_fcall_begin(CLS_D);
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void do_extended_fcall_end(CLS_D);
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void do_ticks(CLS_D);
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#define INITIAL_OP_ARRAY_SIZE 64
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/* helper functions in zend-scanner.l */
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ZEND_API int require_file(zend_file_handle *file_handle, zend_bool unique CLS_DC);
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ZEND_API int require_filename(char *filename CLS_DC);
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ZEND_API int use_filename(char *filename, uint filename_length CLS_DC);
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ZEND_API zend_op_array *compile_files(int mark_as_ref CLS_DC, int file_count, ...);
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ZEND_API zend_op_array *v_compile_files(int mark_as_ref CLS_DC, int file_count, va_list files);
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ZEND_API zend_op_array *compile_string(zval *source_string CLS_DC);
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ZEND_API zend_op_array *compile_filename(int mode, zval *filename CLS_DC ELS_DC);
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ZEND_API int open_file_for_scanning(zend_file_handle *file_handle CLS_DC);
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ZEND_API void init_op_array(zend_op_array *op_array, int initial_ops_size);
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ZEND_API void destroy_op_array(zend_op_array *op_array);
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ZEND_API void zend_close_file_handle(zend_file_handle *file_handle CLS_DC);
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ZEND_API void zend_open_file_dtor(zend_file_handle *fh);
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ZEND_API void destroy_zend_function(zend_function *function);
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ZEND_API void destroy_zend_class(zend_class_entry *ce);
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void zend_class_add_ref(zend_class_entry *ce);
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#define ZEND_FUNCTION_DTOR (void (*)(void *)) destroy_zend_function
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#define ZEND_CLASS_DTOR (void (*)(void *)) destroy_zend_class
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zend_op *get_next_op(zend_op_array *op_array CLS_DC);
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void init_op(zend_op *op CLS_DC);
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int get_next_op_number(zend_op_array *op_array);
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int print_class(zend_class_entry *class_entry);
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void print_op_array(zend_op_array *op_array, int optimizations);
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int pass_two(zend_op_array *op_array);
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void pass_include_eval(zend_op_array *op_array);
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zend_brk_cont_element *get_next_brk_cont_element(zend_op_array *op_array);
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ZEND_API zend_bool zend_is_compiling(void);
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int zendlex(znode *zendlval CLS_DC);
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#define ZEND_NOP 0
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#define ZEND_ADD 1
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#define ZEND_SUB 2
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#define ZEND_MUL 3
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#define ZEND_DIV 4
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#define ZEND_MOD 5
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#define ZEND_SL 6
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#define ZEND_SR 7
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#define ZEND_CONCAT 8
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#define ZEND_BW_OR 9
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#define ZEND_BW_AND 10
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#define ZEND_BW_XOR 11
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#define ZEND_BW_NOT 12
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#define ZEND_BOOL_NOT 13
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#define ZEND_BOOL_XOR 14
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#define ZEND_IS_IDENTICAL 15
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#define ZEND_IS_EQUAL 16
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#define ZEND_IS_NOT_EQUAL 17
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#define ZEND_IS_SMALLER 18
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#define ZEND_IS_SMALLER_OR_EQUAL 19
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#define ZEND_CAST 20
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#define ZEND_QM_ASSIGN 21
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#define ZEND_ASSIGN_ADD 22
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#define ZEND_ASSIGN_SUB 23
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#define ZEND_ASSIGN_MUL 24
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#define ZEND_ASSIGN_DIV 25
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#define ZEND_ASSIGN_MOD 26
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#define ZEND_ASSIGN_SL 27
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#define ZEND_ASSIGN_SR 28
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#define ZEND_ASSIGN_CONCAT 29
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#define ZEND_ASSIGN_BW_OR 30
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#define ZEND_ASSIGN_BW_AND 31
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#define ZEND_ASSIGN_BW_XOR 32
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#define ZEND_PRE_INC 33
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#define ZEND_PRE_DEC 34
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#define ZEND_POST_INC 35
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#define ZEND_POST_DEC 36
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#define ZEND_ASSIGN 37
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#define ZEND_ASSIGN_REF 38
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#define ZEND_ECHO 39
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#define ZEND_PRINT 40
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#define ZEND_JMP 41
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#define ZEND_JMPZ 42
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#define ZEND_JMPNZ 43
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#define ZEND_JMPZNZ 44
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#define ZEND_JMPZ_EX 45
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#define ZEND_JMPNZ_EX 46
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#define ZEND_CASE 47
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#define ZEND_SWITCH_FREE 48
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#define ZEND_BRK 49
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#define ZEND_CONT 50
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#define ZEND_BOOL 51
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#define ZEND_INIT_STRING 52
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#define ZEND_ADD_CHAR 53
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#define ZEND_ADD_STRING 54
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#define ZEND_ADD_VAR 55
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#define ZEND_BEGIN_SILENCE 56
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#define ZEND_END_SILENCE 57
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#define ZEND_INIT_FCALL_BY_NAME 58
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#define ZEND_DO_FCALL 59
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#define ZEND_DO_FCALL_BY_NAME 60
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#define ZEND_RETURN 61
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#define ZEND_RECV 62
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#define ZEND_RECV_INIT 63
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#define ZEND_SEND_VAL 64
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#define ZEND_SEND_VAR 65
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#define ZEND_SEND_REF 66
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#define ZEND_NEW 67
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#define ZEND_JMP_NO_CTOR 68
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#define ZEND_FREE 69
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#define ZEND_INIT_ARRAY 70
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#define ZEND_ADD_ARRAY_ELEMENT 71
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#define ZEND_INCLUDE_OR_EVAL 72
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#define ZEND_UNSET_VAR 73
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#define ZEND_UNSET_DIM_OBJ 74
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#define ZEND_ISSET_ISEMPTY 75
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#define ZEND_FE_RESET 76
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#define ZEND_FE_FETCH 77
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#define ZEND_EXIT 78
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/* the following 18 opcodes are 6 groups of 3 opcodes each, and must
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* remain in that order!
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*/
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#define ZEND_FETCH_R 79
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#define ZEND_FETCH_DIM_R 80
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#define ZEND_FETCH_OBJ_R 81
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#define ZEND_FETCH_W 82
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#define ZEND_FETCH_DIM_W 83
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#define ZEND_FETCH_OBJ_W 84
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#define ZEND_FETCH_RW 85
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#define ZEND_FETCH_DIM_RW 86
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#define ZEND_FETCH_OBJ_RW 87
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#define ZEND_FETCH_IS 88
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#define ZEND_FETCH_DIM_IS 89
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#define ZEND_FETCH_OBJ_IS 90
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|
#define ZEND_FETCH_FUNC_ARG 91
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|
#define ZEND_FETCH_DIM_FUNC_ARG 92
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|
#define ZEND_FETCH_OBJ_FUNC_ARG 93
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|
#define ZEND_FETCH_UNSET 94
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|
#define ZEND_FETCH_DIM_UNSET 95
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|
#define ZEND_FETCH_OBJ_UNSET 96
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#define ZEND_FETCH_DIM_TMP_VAR 97
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|
#define ZEND_FETCH_CONSTANT 98
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|
#define ZEND_DECLARE_FUNCTION_OR_CLASS 99
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|
#define ZEND_EXT_STMT 100
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|
#define ZEND_EXT_FCALL_BEGIN 101
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|
#define ZEND_EXT_FCALL_END 102
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|
#define ZEND_EXT_NOP 103
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#define ZEND_TICKS 104
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|
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/* end of block */
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/* global/local fetches */
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|
#define ZEND_FETCH_GLOBAL 0
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|
#define ZEND_FETCH_LOCAL 1
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|
#define ZEND_FETCH_STATIC 2
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|
|
|
/* var status for backpatching */
|
|
#define BP_VAR_R 0
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|
#define BP_VAR_W 1
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|
#define BP_VAR_RW 2
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|
#define BP_VAR_IS 3
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|
#define BP_VAR_NA 4 /* if not applicable */
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|
#define BP_VAR_FUNC_ARG 5
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|
#define BP_VAR_UNSET 6
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|
|
|
|
|
#define ZEND_INTERNAL_FUNCTION 1
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|
#define ZEND_USER_FUNCTION 2
|
|
#define ZEND_OVERLOADED_FUNCTION 3
|
|
#define ZEND_EVAL_CODE 4
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|
|
|
#define ZEND_INTERNAL_CLASS 1
|
|
#define ZEND_USER_CLASS 2
|
|
|
|
#define ZEND_EVAL (1<<0)
|
|
#define ZEND_INCLUDE (1<<1)
|
|
#define ZEND_IMPORT (1<<2)
|
|
#define ZEND_REQUIRE (1<<3)
|
|
|
|
#define ZEND_ISSET (1<<0)
|
|
#define ZEND_ISEMPTY (1<<1)
|
|
|
|
#define ZEND_CT (1<<0)
|
|
#define ZEND_RT (1<<1)
|
|
|
|
|
|
#define ZEND_HANDLE_FILENAME 0
|
|
#define ZEND_HANDLE_FD 1
|
|
#define ZEND_HANDLE_FP 2
|
|
#define ZEND_HANDLE_STDIOSTREAM 3
|
|
#define ZEND_HANDLE_FSTREAM 4
|
|
|
|
#define ZEND_DECLARE_CLASS 1
|
|
#define ZEND_DECLARE_FUNCTION 2
|
|
#define ZEND_DECLARE_INHERITED_CLASS 3
|
|
|
|
#define ZEND_FETCH_STANDARD 0
|
|
#define ZEND_FETCH_ADD_LOCK 1
|
|
|
|
#define ZEND_MEMBER_FUNC_CALL 1<<0
|
|
#define ZEND_CTOR_CALL 1<<1
|
|
|
|
|
|
#define AI_USE_PTR(ai) \
|
|
if ((ai).ptr_ptr) { \
|
|
(ai).ptr = *((ai).ptr_ptr); \
|
|
(ai).ptr_ptr = &((ai).ptr); \
|
|
} else { \
|
|
(ai).ptr = NULL; \
|
|
}
|
|
|
|
#define PZVAL_IS_REF(z) ((z)->is_ref)
|
|
|
|
/* Lost In Stupid Parentheses */
|
|
#define ARG_SHOULD_BE_SENT_BY_REF(offset, conduct_check, arg_types) \
|
|
( \
|
|
conduct_check \
|
|
&& arg_types \
|
|
&& \
|
|
( \
|
|
( \
|
|
offset<=arg_types[0] \
|
|
&& arg_types[offset]==BYREF_FORCE \
|
|
) \
|
|
|| ( \
|
|
offset>=arg_types[0] \
|
|
&& arg_types[arg_types[0]]==BYREF_FORCE_REST \
|
|
) \
|
|
) \
|
|
)
|
|
|
|
#define ZEND_RETURN_VAL 0
|
|
#define ZEND_RETURN_REF 1
|
|
|
|
END_EXTERN_C()
|
|
|
|
#endif /* _COMPILE_H */
|