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9dae56ea A |
1 | /* |
2 | * Copyright (C) 1999-2002 Harri Porten (porten@kde.org) | |
3 | * Copyright (C) 2001 Peter Kelly (pmk@post.com) | |
4 | * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. | |
5 | * Copyright (C) 2007 Cameron Zwarich (cwzwarich@uwaterloo.ca) | |
6 | * Copyright (C) 2007 Maks Orlovich | |
7 | * Copyright (C) 2007 Eric Seidel <eric@webkit.org> | |
8 | * | |
9 | * This library is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU Library General Public | |
11 | * License as published by the Free Software Foundation; either | |
12 | * version 2 of the License, or (at your option) any later version. | |
13 | * | |
14 | * This library is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * Library General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU Library General Public License | |
20 | * along with this library; see the file COPYING.LIB. If not, write to | |
21 | * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
22 | * Boston, MA 02110-1301, USA. | |
23 | * | |
24 | */ | |
25 | ||
26 | #include "config.h" | |
27 | #include "Nodes.h" | |
ba379fdc | 28 | #include "NodeConstructors.h" |
9dae56ea A |
29 | |
30 | #include "BytecodeGenerator.h" | |
31 | #include "CallFrame.h" | |
ba379fdc A |
32 | #include "Debugger.h" |
33 | #include "JIT.h" | |
34 | #include "JSFunction.h" | |
9dae56ea A |
35 | #include "JSGlobalObject.h" |
36 | #include "JSStaticScopeObject.h" | |
37 | #include "LabelScope.h" | |
ba379fdc A |
38 | #include "Lexer.h" |
39 | #include "Operations.h" | |
9dae56ea A |
40 | #include "Parser.h" |
41 | #include "PropertyNameArray.h" | |
42 | #include "RegExpObject.h" | |
43 | #include "SamplingTool.h" | |
9dae56ea | 44 | #include <wtf/Assertions.h> |
9dae56ea A |
45 | #include <wtf/RefCountedLeakCounter.h> |
46 | #include <wtf/Threading.h> | |
47 | ||
48 | using namespace WTF; | |
49 | ||
50 | namespace JSC { | |
51 | ||
9dae56ea | 52 | |
f9bf01c6 | 53 | // ------------------------------ StatementNode -------------------------------- |
9dae56ea | 54 | |
f9bf01c6 | 55 | void StatementNode::setLoc(int firstLine, int lastLine) |
9dae56ea | 56 | { |
f9bf01c6 A |
57 | m_line = firstLine; |
58 | m_lastLine = lastLine; | |
9dae56ea A |
59 | } |
60 | ||
f9bf01c6 | 61 | // ------------------------------ SourceElements -------------------------------- |
9dae56ea | 62 | |
f9bf01c6 | 63 | void SourceElements::append(StatementNode* statement) |
9dae56ea | 64 | { |
f9bf01c6 A |
65 | if (statement->isEmptyStatement()) |
66 | return; | |
67 | m_statements.append(statement); | |
9dae56ea A |
68 | } |
69 | ||
f9bf01c6 | 70 | inline StatementNode* SourceElements::singleStatement() const |
9dae56ea | 71 | { |
f9bf01c6 A |
72 | size_t size = m_statements.size(); |
73 | return size == 1 ? m_statements[0] : 0; | |
9dae56ea A |
74 | } |
75 | ||
9dae56ea A |
76 | // -----------------------------ScopeNodeData --------------------------- |
77 | ||
f9bf01c6 | 78 | ScopeNodeData::ScopeNodeData(ParserArena& arena, SourceElements* statements, VarStack* varStack, FunctionStack* funcStack, int numConstants) |
9dae56ea | 79 | : m_numConstants(numConstants) |
f9bf01c6 | 80 | , m_statements(statements) |
9dae56ea | 81 | { |
ba379fdc | 82 | m_arena.swap(arena); |
9dae56ea | 83 | if (varStack) |
ba379fdc | 84 | m_varStack.swap(*varStack); |
9dae56ea | 85 | if (funcStack) |
ba379fdc | 86 | m_functionStack.swap(*funcStack); |
9dae56ea A |
87 | } |
88 | ||
89 | // ------------------------------ ScopeNode ----------------------------- | |
90 | ||
91 | ScopeNode::ScopeNode(JSGlobalData* globalData) | |
92 | : StatementNode(globalData) | |
ba379fdc | 93 | , ParserArenaRefCounted(globalData) |
9dae56ea A |
94 | , m_features(NoFeatures) |
95 | { | |
9dae56ea A |
96 | } |
97 | ||
98 | ScopeNode::ScopeNode(JSGlobalData* globalData, const SourceCode& source, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, CodeFeatures features, int numConstants) | |
99 | : StatementNode(globalData) | |
ba379fdc A |
100 | , ParserArenaRefCounted(globalData) |
101 | , m_data(new ScopeNodeData(globalData->parser->arena(), children, varStack, funcStack, numConstants)) | |
9dae56ea A |
102 | , m_features(features) |
103 | , m_source(source) | |
104 | { | |
f9bf01c6 A |
105 | } |
106 | ||
107 | StatementNode* ScopeNode::singleStatement() const | |
108 | { | |
109 | return m_data->m_statements ? m_data->m_statements->singleStatement() : 0; | |
9dae56ea A |
110 | } |
111 | ||
9dae56ea A |
112 | // ------------------------------ ProgramNode ----------------------------- |
113 | ||
ba379fdc | 114 | inline ProgramNode::ProgramNode(JSGlobalData* globalData, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, const SourceCode& source, CodeFeatures features, int numConstants) |
9dae56ea A |
115 | : ScopeNode(globalData, source, children, varStack, funcStack, features, numConstants) |
116 | { | |
117 | } | |
118 | ||
ba379fdc | 119 | PassRefPtr<ProgramNode> ProgramNode::create(JSGlobalData* globalData, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, const SourceCode& source, CodeFeatures features, int numConstants) |
9dae56ea | 120 | { |
ba379fdc A |
121 | RefPtr<ProgramNode> node = new ProgramNode(globalData, children, varStack, funcStack, source, features, numConstants); |
122 | ||
123 | ASSERT(node->data()->m_arena.last() == node); | |
124 | node->data()->m_arena.removeLast(); | |
125 | ASSERT(!node->data()->m_arena.contains(node.get())); | |
126 | ||
127 | return node.release(); | |
9dae56ea A |
128 | } |
129 | ||
9dae56ea A |
130 | // ------------------------------ EvalNode ----------------------------- |
131 | ||
ba379fdc | 132 | inline EvalNode::EvalNode(JSGlobalData* globalData, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, const SourceCode& source, CodeFeatures features, int numConstants) |
9dae56ea A |
133 | : ScopeNode(globalData, source, children, varStack, funcStack, features, numConstants) |
134 | { | |
135 | } | |
136 | ||
ba379fdc | 137 | PassRefPtr<EvalNode> EvalNode::create(JSGlobalData* globalData, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, const SourceCode& source, CodeFeatures features, int numConstants) |
9dae56ea | 138 | { |
ba379fdc A |
139 | RefPtr<EvalNode> node = new EvalNode(globalData, children, varStack, funcStack, source, features, numConstants); |
140 | ||
141 | ASSERT(node->data()->m_arena.last() == node); | |
142 | node->data()->m_arena.removeLast(); | |
143 | ASSERT(!node->data()->m_arena.contains(node.get())); | |
144 | ||
145 | return node.release(); | |
9dae56ea A |
146 | } |
147 | ||
f9bf01c6 | 148 | // ------------------------------ FunctionBodyNode ----------------------------- |
9dae56ea | 149 | |
f9bf01c6 | 150 | FunctionParameters::FunctionParameters(ParameterNode* firstParameter) |
ba379fdc | 151 | { |
f9bf01c6 A |
152 | for (ParameterNode* parameter = firstParameter; parameter; parameter = parameter->nextParam()) |
153 | append(parameter->ident()); | |
ba379fdc | 154 | } |
9dae56ea | 155 | |
ba379fdc | 156 | inline FunctionBodyNode::FunctionBodyNode(JSGlobalData* globalData) |
9dae56ea | 157 | : ScopeNode(globalData) |
9dae56ea A |
158 | { |
159 | } | |
160 | ||
ba379fdc | 161 | inline FunctionBodyNode::FunctionBodyNode(JSGlobalData* globalData, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, const SourceCode& sourceCode, CodeFeatures features, int numConstants) |
9dae56ea | 162 | : ScopeNode(globalData, sourceCode, children, varStack, funcStack, features, numConstants) |
9dae56ea | 163 | { |
9dae56ea A |
164 | } |
165 | ||
f9bf01c6 | 166 | void FunctionBodyNode::finishParsing(const SourceCode& source, ParameterNode* firstParameter, const Identifier& ident) |
9dae56ea | 167 | { |
9dae56ea | 168 | setSource(source); |
f9bf01c6 | 169 | finishParsing(FunctionParameters::create(firstParameter), ident); |
9dae56ea A |
170 | } |
171 | ||
f9bf01c6 | 172 | void FunctionBodyNode::finishParsing(PassRefPtr<FunctionParameters> parameters, const Identifier& ident) |
9dae56ea A |
173 | { |
174 | ASSERT(!source().isNull()); | |
175 | m_parameters = parameters; | |
f9bf01c6 | 176 | m_ident = ident; |
ba379fdc A |
177 | } |
178 | ||
9dae56ea A |
179 | FunctionBodyNode* FunctionBodyNode::create(JSGlobalData* globalData) |
180 | { | |
181 | return new FunctionBodyNode(globalData); | |
182 | } | |
183 | ||
ba379fdc | 184 | PassRefPtr<FunctionBodyNode> FunctionBodyNode::create(JSGlobalData* globalData, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, const SourceCode& sourceCode, CodeFeatures features, int numConstants) |
9dae56ea | 185 | { |
ba379fdc A |
186 | RefPtr<FunctionBodyNode> node = new FunctionBodyNode(globalData, children, varStack, funcStack, sourceCode, features, numConstants); |
187 | ||
188 | ASSERT(node->data()->m_arena.last() == node); | |
189 | node->data()->m_arena.removeLast(); | |
190 | ASSERT(!node->data()->m_arena.contains(node.get())); | |
191 | ||
192 | return node.release(); | |
9dae56ea A |
193 | } |
194 | ||
9dae56ea | 195 | } // namespace JSC |