1 /*
2 +----------------------------------------------------------------------+
3 | Zend Engine |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1998-2016 Zend Technologies Ltd. (http://www.zend.com) |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 2.00 of the Zend license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.zend.com/license/2_00.txt. |
11 | If you did not receive a copy of the Zend license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@zend.com so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Bob Weinand <bwoebi@php.net> |
16 | Dmitry Stogov <dmitry@zend.com> |
17 +----------------------------------------------------------------------+
18 */
19
20 /* $Id$ */
21
22 #ifndef ZEND_AST_H
23 #define ZEND_AST_H
24
25 typedef struct _zend_ast zend_ast;
26
27 #include "zend.h"
28
29 typedef enum _zend_ast_kind {
30 /* first 256 kinds are reserved for opcodes */
31 ZEND_CONST = 256,
32 ZEND_BOOL_AND,
33 ZEND_BOOL_OR,
34 ZEND_SELECT,
35 ZEND_UNARY_PLUS,
36 ZEND_UNARY_MINUS,
37 } zend_ast_kind;
38
39 struct _zend_ast {
40 unsigned short kind;
41 unsigned short children;
42 union {
43 zval *val;
44 zend_ast *child;
45 } u;
46 };
47
48 ZEND_API zend_ast *zend_ast_create_constant(zval *zv);
49
50 ZEND_API zend_ast *zend_ast_create_unary(uint kind, zend_ast *op0);
51 ZEND_API zend_ast *zend_ast_create_binary(uint kind, zend_ast *op0, zend_ast *op1);
52 ZEND_API zend_ast *zend_ast_create_ternary(uint kind, zend_ast *op0, zend_ast *op1, zend_ast *op2);
53 ZEND_API zend_ast* zend_ast_create_dynamic(uint kind);
54 ZEND_API void zend_ast_dynamic_add(zend_ast **ast, zend_ast *op);
55 ZEND_API void zend_ast_dynamic_shrink(zend_ast **ast);
56
57 ZEND_API int zend_ast_is_ct_constant(zend_ast *ast);
58
59 ZEND_API void zend_ast_evaluate(zval *result, zend_ast *ast, zend_class_entry *scope TSRMLS_DC);
60
61 ZEND_API zend_ast *zend_ast_copy(zend_ast *ast);
62 ZEND_API void zend_ast_destroy(zend_ast *ast);
63
64 #endif