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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2016 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: Bob Weinand <bwoebi@php.net> |
| Dmitry Stogov <dmitry@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifndef ZEND_AST_H
#define ZEND_AST_H
typedef struct _zend_ast zend_ast;
#include "zend.h"
typedef enum _zend_ast_kind {
/* first 256 kinds are reserved for opcodes */
ZEND_CONST = 256,
ZEND_BOOL_AND,
ZEND_BOOL_OR,
ZEND_SELECT,
ZEND_UNARY_PLUS,
ZEND_UNARY_MINUS,
} zend_ast_kind;
struct _zend_ast {
unsigned short kind;
unsigned short children;
union {
zval *val;
zend_ast *child;
} u;
};
ZEND_API zend_ast *zend_ast_create_constant(zval *zv);
ZEND_API zend_ast *zend_ast_create_unary(uint kind, zend_ast *op0);
ZEND_API zend_ast *zend_ast_create_binary(uint kind, zend_ast *op0, zend_ast *op1);
ZEND_API zend_ast *zend_ast_create_ternary(uint kind, zend_ast *op0, zend_ast *op1, zend_ast *op2);
ZEND_API zend_ast* zend_ast_create_dynamic(uint kind);
ZEND_API void zend_ast_dynamic_add(zend_ast **ast, zend_ast *op);
ZEND_API void zend_ast_dynamic_shrink(zend_ast **ast);
ZEND_API int zend_ast_is_ct_constant(zend_ast *ast);
ZEND_API void zend_ast_evaluate(zval *result, zend_ast *ast, zend_class_entry *scope TSRMLS_DC);
ZEND_API zend_ast *zend_ast_copy(zend_ast *ast);
ZEND_API void zend_ast_destroy(zend_ast *ast);
#endif
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