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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/ast.h" | 5 #include "src/ast.h" |
6 | 6 |
7 #include <cmath> // For isfinite. | 7 #include <cmath> // For isfinite. |
8 #include "src/builtins.h" | 8 #include "src/builtins.h" |
9 #include "src/code-stubs.h" | 9 #include "src/code-stubs.h" |
10 #include "src/contexts.h" | 10 #include "src/contexts.h" |
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57 return var != NULL && var->location() == Variable::UNALLOCATED && | 57 return var != NULL && var->location() == Variable::UNALLOCATED && |
58 var_proxy->raw_name()->IsOneByteEqualTo("undefined"); | 58 var_proxy->raw_name()->IsOneByteEqualTo("undefined"); |
59 } | 59 } |
60 | 60 |
61 | 61 |
62 VariableProxy::VariableProxy(Zone* zone, Variable* var, int position, | 62 VariableProxy::VariableProxy(Zone* zone, Variable* var, int position, |
63 IdGen* id_gen) | 63 IdGen* id_gen) |
64 : Expression(zone, position, 0, id_gen), | 64 : Expression(zone, position, 0, id_gen), |
65 raw_name_(var->raw_name()), | 65 raw_name_(var->raw_name()), |
66 interface_(var->interface()), | 66 interface_(var->interface()), |
67 variable_feedback_slot_(FeedbackVectorSlot::Invalid()), | 67 variable_feedback_slot_(FeedbackVectorICSlot::Invalid()), |
68 is_this_(var->is_this()), | 68 is_this_(var->is_this()), |
69 is_assigned_(false), | 69 is_assigned_(false), |
70 is_resolved_(false) { | 70 is_resolved_(false) { |
71 BindTo(var); | 71 BindTo(var); |
72 } | 72 } |
73 | 73 |
74 | 74 |
75 VariableProxy::VariableProxy(Zone* zone, const AstRawString* name, bool is_this, | 75 VariableProxy::VariableProxy(Zone* zone, const AstRawString* name, bool is_this, |
76 Interface* interface, int position, IdGen* id_gen) | 76 Interface* interface, int position, IdGen* id_gen) |
77 : Expression(zone, position, 0, id_gen), | 77 : Expression(zone, position, 0, id_gen), |
78 raw_name_(name), | 78 raw_name_(name), |
79 interface_(interface), | 79 interface_(interface), |
80 variable_feedback_slot_(FeedbackVectorSlot::Invalid()), | 80 variable_feedback_slot_(FeedbackVectorICSlot::Invalid()), |
81 is_this_(is_this), | 81 is_this_(is_this), |
82 is_assigned_(false), | 82 is_assigned_(false), |
83 is_resolved_(false) {} | 83 is_resolved_(false) {} |
84 | 84 |
85 | 85 |
86 void VariableProxy::BindTo(Variable* var) { | 86 void VariableProxy::BindTo(Variable* var) { |
87 DCHECK(!FLAG_harmony_modules || interface_->IsUnified(var->interface())); | 87 DCHECK(!FLAG_harmony_modules || interface_->IsUnified(var->interface())); |
88 DCHECK((is_this() && var->is_this()) || raw_name() == var->raw_name()); | 88 DCHECK((is_this() && var->is_this()) || raw_name() == var->raw_name()); |
89 // Ideally CONST-ness should match. However, this is very hard to achieve | 89 // Ideally CONST-ness should match. However, this is very hard to achieve |
90 // because we don't know the exact semantics of conflicting (const and | 90 // because we don't know the exact semantics of conflicting (const and |
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1142 // static | 1142 // static |
1143 bool Literal::Match(void* literal1, void* literal2) { | 1143 bool Literal::Match(void* literal1, void* literal2) { |
1144 const AstValue* x = static_cast<Literal*>(literal1)->raw_value(); | 1144 const AstValue* x = static_cast<Literal*>(literal1)->raw_value(); |
1145 const AstValue* y = static_cast<Literal*>(literal2)->raw_value(); | 1145 const AstValue* y = static_cast<Literal*>(literal2)->raw_value(); |
1146 return (x->IsString() && y->IsString() && *x->AsString() == *y->AsString()) || | 1146 return (x->IsString() && y->IsString() && *x->AsString() == *y->AsString()) || |
1147 (x->IsNumber() && y->IsNumber() && x->AsNumber() == y->AsNumber()); | 1147 (x->IsNumber() && y->IsNumber() && x->AsNumber() == y->AsNumber()); |
1148 } | 1148 } |
1149 | 1149 |
1150 | 1150 |
1151 } } // namespace v8::internal | 1151 } } // namespace v8::internal |
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