/* +----------------------------------------------------------------------+ | 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