OLD | NEW |
1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
(...skipping 40 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
51 case TEMPORARY: return "TEMPORARY"; | 51 case TEMPORARY: return "TEMPORARY"; |
52 } | 52 } |
53 UNREACHABLE(); | 53 UNREACHABLE(); |
54 return NULL; | 54 return NULL; |
55 } | 55 } |
56 | 56 |
57 | 57 |
58 Variable::Variable(Scope* scope, | 58 Variable::Variable(Scope* scope, |
59 Handle<String> name, | 59 Handle<String> name, |
60 VariableMode mode, | 60 VariableMode mode, |
61 bool is_valid_LHS, | 61 bool is_valid_ref, |
62 Kind kind, | 62 Kind kind, |
63 InitializationFlag initialization_flag, | 63 InitializationFlag initialization_flag, |
64 Interface* interface) | 64 Interface* interface) |
65 : scope_(scope), | 65 : scope_(scope), |
66 name_(name), | 66 name_(name), |
67 mode_(mode), | 67 mode_(mode), |
68 kind_(kind), | 68 kind_(kind), |
69 location_(UNALLOCATED), | 69 location_(UNALLOCATED), |
70 index_(-1), | 70 index_(-1), |
71 initializer_position_(RelocInfo::kNoPosition), | 71 initializer_position_(RelocInfo::kNoPosition), |
72 local_if_not_shadowed_(NULL), | 72 local_if_not_shadowed_(NULL), |
73 is_valid_LHS_(is_valid_LHS), | 73 is_valid_ref_(is_valid_ref), |
74 force_context_allocation_(false), | 74 force_context_allocation_(false), |
75 is_used_(false), | 75 is_used_(false), |
76 initialization_flag_(initialization_flag), | 76 initialization_flag_(initialization_flag), |
77 interface_(interface) { | 77 interface_(interface) { |
78 // Names must be canonicalized for fast equality checks. | 78 // Names must be canonicalized for fast equality checks. |
79 ASSERT(name->IsInternalizedString()); | 79 ASSERT(name->IsInternalizedString()); |
80 // Var declared variables never need initialization. | 80 // Var declared variables never need initialization. |
81 ASSERT(!(mode == VAR && initialization_flag == kNeedsInitialization)); | 81 ASSERT(!(mode == VAR && initialization_flag == kNeedsInitialization)); |
82 } | 82 } |
83 | 83 |
84 | 84 |
85 bool Variable::IsGlobalObjectProperty() const { | 85 bool Variable::IsGlobalObjectProperty() const { |
86 // Temporaries are never global, they must always be allocated in the | 86 // Temporaries are never global, they must always be allocated in the |
87 // activation frame. | 87 // activation frame. |
88 return (IsDynamicVariableMode(mode_) || | 88 return (IsDynamicVariableMode(mode_) || |
89 (IsDeclaredVariableMode(mode_) && !IsLexicalVariableMode(mode_))) | 89 (IsDeclaredVariableMode(mode_) && !IsLexicalVariableMode(mode_))) |
90 && scope_ != NULL && scope_->is_global_scope(); | 90 && scope_ != NULL && scope_->is_global_scope(); |
91 } | 91 } |
92 | 92 |
93 | 93 |
94 int Variable::CompareIndex(Variable* const* v, Variable* const* w) { | 94 int Variable::CompareIndex(Variable* const* v, Variable* const* w) { |
95 int x = (*v)->index(); | 95 int x = (*v)->index(); |
96 int y = (*w)->index(); | 96 int y = (*w)->index(); |
97 // Consider sorting them according to type as well? | 97 // Consider sorting them according to type as well? |
98 return x - y; | 98 return x - y; |
99 } | 99 } |
100 | 100 |
101 } } // namespace v8::internal | 101 } } // namespace v8::internal |
OLD | NEW |