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89ecd73a04
Future optimization: only use uint for dynamic lists and use a uchar or even an introspection function to get the child count.
137 lines
3.9 KiB
C
137 lines
3.9 KiB
C
/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) 1998-2014 Zend Technologies Ltd. (http://www.zend.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.00 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 through the world-wide-web at the following url: |
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| http://www.zend.com/license/2_00.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: Bob Weinand <bwoebi@php.net> |
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| Dmitry Stogov <dmitry@zend.com> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#ifndef ZEND_AST_H
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#define ZEND_AST_H
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#include "zend.h"
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typedef enum _zend_ast_kind {
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/* first 256 kinds are reserved for opcodes */
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ZEND_CONST = 256, /* TODO.AST: Split in constant lookup and literal zval */
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ZEND_BOOL_AND,
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ZEND_BOOL_OR,
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ZEND_SELECT,
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ZEND_UNARY_PLUS,
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ZEND_UNARY_MINUS,
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ZEND_AST_ZNODE,
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ZEND_AST_VAR,
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ZEND_AST_DIM,
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ZEND_AST_PROP,
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ZEND_AST_STATIC_PROP,
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ZEND_AST_CALL,
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ZEND_AST_METHOD_CALL,
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ZEND_AST_STATIC_CALL,
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ZEND_AST_ASSIGN,
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ZEND_AST_ASSIGN_REF,
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ZEND_AST_LIST,
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ZEND_AST_GLOBAL,
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ZEND_AST_UNSET,
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ZEND_AST_PARAMS,
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ZEND_AST_UNPACK,
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ZEND_AST_NAME,
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ZEND_AST_NAME_FQ,
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ZEND_AST_AND,
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ZEND_AST_OR,
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ZEND_AST_GREATER,
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ZEND_AST_GREATER_EQUAL,
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ZEND_AST_CAST_NULL,
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ZEND_AST_CAST_BOOL,
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ZEND_AST_CAST_INT,
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ZEND_AST_CAST_DOUBLE,
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ZEND_AST_CAST_STRING,
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ZEND_AST_CAST_ARRAY,
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ZEND_AST_CAST_OBJECT,
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ZEND_AST_CONDITIONAL,
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} zend_ast_kind;
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struct _zend_ast {
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unsigned short kind;
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unsigned short EA;
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zend_uint children;
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zend_ast *child[1];
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};
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typedef struct _zend_ast_zval {
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unsigned short kind;
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unsigned short EA;
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zval val;
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} zend_ast_zval;
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static inline zval *zend_ast_get_zval(zend_ast *ast) {
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return &((zend_ast_zval *) ast)->val;
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}
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ZEND_API zend_ast *zend_ast_create_constant(zval *zv);
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ZEND_API zend_ast *zend_ast_create_unary(uint kind, zend_ast *op0);
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ZEND_API zend_ast *zend_ast_create_binary(uint kind, zend_ast *op0, zend_ast *op1);
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ZEND_API zend_ast *zend_ast_create_ternary(uint kind, zend_ast *op0, zend_ast *op1, zend_ast *op2);
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ZEND_API zend_ast* zend_ast_create_dynamic(uint kind);
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ZEND_API void zend_ast_dynamic_add(zend_ast **ast, zend_ast *op);
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ZEND_API void zend_ast_dynamic_shrink(zend_ast **ast);
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ZEND_API int zend_ast_is_ct_constant(zend_ast *ast);
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ZEND_API void zend_ast_evaluate(zval *result, zend_ast *ast, zend_class_entry *scope TSRMLS_DC);
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ZEND_API zend_ast *zend_ast_copy(zend_ast *ast);
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ZEND_API void zend_ast_destroy(zend_ast *ast);
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static inline zend_ast *zend_ast_create_var(zval *name) {
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return zend_ast_create_unary(ZEND_AST_VAR, zend_ast_create_constant(name));
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}
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/* Temporary, for porting */
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#define AST_COMPILE(res, ast) do { \
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zend_ast *_ast = (ast); \
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zend_compile_expr((res), _ast TSRMLS_CC); \
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zend_ast_destroy(_ast); \
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} while (0)
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#define AST_COMPILE_VAR(res, ast, type) do { \
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zend_ast *_ast = (ast); \
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zend_compile_var((res), _ast, type TSRMLS_CC); \
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zend_ast_destroy(_ast); \
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} while (0)
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#define AST_COMPILE_STMT(ast) do { \
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zend_ast *_ast = (ast); \
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zend_compile_stmt(_ast TSRMLS_CC); \
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zend_ast_destroy(_ast); \
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} while (0)
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#define AST_ZNODE(znode) zend_ast_create_znode((znode))
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#define AST_ZVAL(znode) zend_ast_create_constant(&(znode)->u.constant)
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#define AC(znode) AST_COMPILE(&znode, znode.u.ast)
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#define AZ(znode) ((znode).u.ast = AST_ZNODE(&znode))
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#endif
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