1/*
2 * Copyright (C) 1999-2001 Harri Porten ([email protected])
3 * Copyright (C) 2001 Peter Kelly ([email protected])
4 * Copyright (C) 2003, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 *
21 */
22
23#ifndef Parser_h
24#define Parser_h
25
26#include "Debugger.h"
27#include "Executable.h"
28#include "JSGlobalObject.h"
29#include "Lexer.h"
30#include "Nodes.h"
31#include "ParserArena.h"
32#include "SourceProvider.h"
33#include <wtf/Forward.h>
34#include <wtf/Noncopyable.h>
35#include <wtf/OwnPtr.h>
36#include <wtf/RefPtr.h>
37
38namespace JSC {
39
40 class FunctionBodyNode;
41 class ProgramNode;
42 class UString;
43
44 template <typename T> struct ParserArenaData : ParserArenaDeletable { T data; };
45
46 class Parser : public Noncopyable {
47 public:
48 template <class ParsedNode>
49 PassRefPtr<ParsedNode> parse(JSGlobalData* globalData, Debugger*, ExecState*, const SourceCode& source, int* errLine = 0, UString* errMsg = 0);
50
51 void didFinishParsing(SourceElements*, ParserArenaData<DeclarationStacks::VarStack>*,
52 ParserArenaData<DeclarationStacks::FunctionStack>*, CodeFeatures features, int lastLine, int numConstants);
53
54 ParserArena& arena() { return m_arena; }
55
56 private:
57 void parse(JSGlobalData*, int* errLine, UString* errMsg);
58
59 ParserArena m_arena;
60 const SourceCode* m_source;
61 SourceElements* m_sourceElements;
62 ParserArenaData<DeclarationStacks::VarStack>* m_varDeclarations;
63 ParserArenaData<DeclarationStacks::FunctionStack>* m_funcDeclarations;
64 CodeFeatures m_features;
65 int m_lastLine;
66 int m_numConstants;
67 };
68
69 template <class ParsedNode>
70 PassRefPtr<ParsedNode> Parser::parse(JSGlobalData* globalData, Debugger* debugger, ExecState* debuggerExecState, const SourceCode& source, int* errLine, UString* errMsg)
71 {
72 m_source = &source;
73 if (ParsedNode::scopeIsFunction)
74 globalData->lexer->setIsReparsing();
75 parse(globalData, errLine, errMsg);
76
77 RefPtr<ParsedNode> result;
78 if (m_sourceElements) {
79 result = ParsedNode::create(globalData,
80 m_sourceElements,
81 m_varDeclarations ? &m_varDeclarations->data : 0,
82 m_funcDeclarations ? &m_funcDeclarations->data : 0,
83 source,
84 m_features,
85 m_numConstants);
86 result->setLoc(m_source->firstLine(), m_lastLine);
87 }
88
89 m_arena.reset();
90
91 m_source = 0;
92 m_sourceElements = 0;
93 m_varDeclarations = 0;
94 m_funcDeclarations = 0;
95
96 if (debugger && !ParsedNode::scopeIsFunction)
97 debugger->sourceParsed(debuggerExecState, source, errorLineNumber: *errLine, errorMessage: *errMsg);
98 return result.release();
99 }
100
101} // namespace JSC
102
103#endif // Parser_h
104

source code of qtscript/src/3rdparty/javascriptcore/JavaScriptCore/parser/Parser.h