This repository was archived by the owner on Jul 11, 2025. It is now read-only.
forked from phoboslab/JavaScriptCore-iOS
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathNodes.cpp
More file actions
191 lines (156 loc) · 7.27 KB
/
Nodes.cpp
File metadata and controls
191 lines (156 loc) · 7.27 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
/*
* Copyright (C) 1999-2002 Harri Porten ([email protected])
* Copyright (C) 2001 Peter Kelly ([email protected])
* Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
* Copyright (C) 2007 Cameron Zwarich ([email protected])
* Copyright (C) 2007 Maks Orlovich
* Copyright (C) 2007 Eric Seidel <[email protected]>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "Nodes.h"
#include "NodeConstructors.h"
#include "BytecodeGenerator.h"
#include "CallFrame.h"
#include "Debugger.h"
#include "JIT.h"
#include "JSFunction.h"
#include "JSGlobalObject.h"
#include "JSStaticScopeObject.h"
#include "LabelScope.h"
#include "Lexer.h"
#include "Operations.h"
#include "Parser.h"
#include "PropertyNameArray.h"
#include "RegExpObject.h"
#include "SamplingTool.h"
#include <wtf/Assertions.h>
#include <wtf/RefCountedLeakCounter.h>
#include <wtf/Threading.h>
using namespace WTF;
namespace JSC {
// ------------------------------ StatementNode --------------------------------
void StatementNode::setLoc(int firstLine, int lastLine)
{
m_lineNumber = firstLine;
m_lastLine = lastLine;
}
// ------------------------------ SourceElements --------------------------------
void SourceElements::append(StatementNode* statement)
{
if (statement->isEmptyStatement())
return;
m_statements.append(statement);
}
StatementNode* SourceElements::singleStatement() const
{
size_t size = m_statements.size();
return size == 1 ? m_statements[0] : 0;
}
// ------------------------------ ScopeNode -----------------------------
ScopeNode::ScopeNode(JSGlobalData* globalData, int lineNumber, bool inStrictContext)
: StatementNode(lineNumber)
, ParserArenaRefCounted(globalData)
, m_features(inStrictContext ? StrictModeFeature : NoFeatures)
, m_numConstants(0)
, m_statements(0)
{
}
ScopeNode::ScopeNode(JSGlobalData* globalData, int lineNumber, const SourceCode& source, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, CodeFeatures features, int numConstants)
: StatementNode(lineNumber)
, ParserArenaRefCounted(globalData)
, m_features(features)
, m_source(source)
, m_numConstants(numConstants)
, m_statements(children)
{
m_arena.swap(*globalData->parserArena);
if (varStack)
m_varStack.swap(*varStack);
if (funcStack)
m_functionStack.swap(*funcStack);
m_capturedVariables.swap(capturedVariables);
}
StatementNode* ScopeNode::singleStatement() const
{
return m_statements ? m_statements->singleStatement() : 0;
}
// ------------------------------ ProgramNode -----------------------------
inline ProgramNode::ProgramNode(JSGlobalData* globalData, int lineNumber, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, const SourceCode& source, CodeFeatures features, int numConstants)
: ScopeNode(globalData, lineNumber, source, children, varStack, funcStack, capturedVariables, features, numConstants)
{
}
PassRefPtr<ProgramNode> ProgramNode::create(JSGlobalData* globalData, int lineNumber, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, const SourceCode& source, CodeFeatures features, int numConstants)
{
RefPtr<ProgramNode> node = new ProgramNode(globalData, lineNumber, children, varStack, funcStack, capturedVariables, source, features, numConstants);
ASSERT(node->m_arena.last() == node);
node->m_arena.removeLast();
ASSERT(!node->m_arena.contains(node.get()));
return node.release();
}
// ------------------------------ EvalNode -----------------------------
inline EvalNode::EvalNode(JSGlobalData* globalData, int lineNumber, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, const SourceCode& source, CodeFeatures features, int numConstants)
: ScopeNode(globalData, lineNumber, source, children, varStack, funcStack, capturedVariables, features, numConstants)
{
}
PassRefPtr<EvalNode> EvalNode::create(JSGlobalData* globalData, int lineNumber, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, const SourceCode& source, CodeFeatures features, int numConstants)
{
RefPtr<EvalNode> node = new EvalNode(globalData, lineNumber, children, varStack, funcStack, capturedVariables, source, features, numConstants);
ASSERT(node->m_arena.last() == node);
node->m_arena.removeLast();
ASSERT(!node->m_arena.contains(node.get()));
return node.release();
}
// ------------------------------ FunctionBodyNode -----------------------------
FunctionParameters::FunctionParameters(ParameterNode* firstParameter)
{
for (ParameterNode* parameter = firstParameter; parameter; parameter = parameter->nextParam())
append(parameter->ident());
}
inline FunctionBodyNode::FunctionBodyNode(JSGlobalData* globalData, int lineNumber, bool inStrictContext)
: ScopeNode(globalData, lineNumber, inStrictContext)
{
}
inline FunctionBodyNode::FunctionBodyNode(JSGlobalData* globalData, int lineNumber, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, const SourceCode& sourceCode, CodeFeatures features, int numConstants)
: ScopeNode(globalData, lineNumber, sourceCode, children, varStack, funcStack, capturedVariables, features, numConstants)
{
}
void FunctionBodyNode::finishParsing(const SourceCode& source, ParameterNode* firstParameter, const Identifier& ident)
{
setSource(source);
finishParsing(FunctionParameters::create(firstParameter), ident);
}
void FunctionBodyNode::finishParsing(PassRefPtr<FunctionParameters> parameters, const Identifier& ident)
{
ASSERT(!source().isNull());
m_parameters = parameters;
m_ident = ident;
}
FunctionBodyNode* FunctionBodyNode::create(JSGlobalData* globalData, int lineNumber, bool inStrictContext)
{
return new FunctionBodyNode(globalData, lineNumber, inStrictContext);
}
PassRefPtr<FunctionBodyNode> FunctionBodyNode::create(JSGlobalData* globalData, int lineNumber, SourceElements* children, VarStack* varStack, FunctionStack* funcStack, IdentifierSet& capturedVariables, const SourceCode& sourceCode, CodeFeatures features, int numConstants)
{
RefPtr<FunctionBodyNode> node = new FunctionBodyNode(globalData, lineNumber, children, varStack, funcStack, capturedVariables, sourceCode, features, numConstants);
ASSERT(node->m_arena.last() == node);
node->m_arena.removeLast();
ASSERT(!node->m_arena.contains(node.get()));
return node.release();
}
} // namespace JSC