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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 |
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30 #include "ast.h" | 30 #include "ast.h" |
31 #include "scopes.h" | 31 #include "scopes.h" |
32 #include "variables.h" | 32 #include "variables.h" |
33 | 33 |
34 namespace v8 { | 34 namespace v8 { |
35 namespace internal { | 35 namespace internal { |
36 | 36 |
37 // ---------------------------------------------------------------------------- | 37 // ---------------------------------------------------------------------------- |
38 // Implementation Variable. | 38 // Implementation Variable. |
39 | 39 |
40 const char* Variable::Mode2String(Mode mode) { | 40 const char* Variable::Mode2String(VariableMode mode) { |
41 switch (mode) { | 41 switch (mode) { |
42 case VAR: return "VAR"; | 42 case VAR: return "VAR"; |
43 case CONST: return "CONST"; | 43 case CONST: return "CONST"; |
44 case LET: return "LET"; | 44 case LET: return "LET"; |
45 case DYNAMIC: return "DYNAMIC"; | 45 case DYNAMIC: return "DYNAMIC"; |
46 case DYNAMIC_GLOBAL: return "DYNAMIC_GLOBAL"; | 46 case DYNAMIC_GLOBAL: return "DYNAMIC_GLOBAL"; |
47 case DYNAMIC_LOCAL: return "DYNAMIC_LOCAL"; | 47 case DYNAMIC_LOCAL: return "DYNAMIC_LOCAL"; |
48 case INTERNAL: return "INTERNAL"; | 48 case INTERNAL: return "INTERNAL"; |
49 case TEMPORARY: return "TEMPORARY"; | 49 case TEMPORARY: return "TEMPORARY"; |
50 } | 50 } |
51 UNREACHABLE(); | 51 UNREACHABLE(); |
52 return NULL; | 52 return NULL; |
53 } | 53 } |
54 | 54 |
55 | 55 |
56 Variable::Variable(Scope* scope, | 56 Variable::Variable(Scope* scope, |
57 Handle<String> name, | 57 Handle<String> name, |
58 Mode mode, | 58 VariableMode mode, |
59 bool is_valid_LHS, | 59 bool is_valid_LHS, |
60 Kind kind) | 60 Kind kind) |
61 : scope_(scope), | 61 : scope_(scope), |
62 name_(name), | 62 name_(name), |
63 mode_(mode), | 63 mode_(mode), |
64 kind_(kind), | 64 kind_(kind), |
65 location_(UNALLOCATED), | 65 location_(UNALLOCATED), |
66 index_(-1), | 66 index_(-1), |
67 local_if_not_shadowed_(NULL), | 67 local_if_not_shadowed_(NULL), |
68 is_valid_LHS_(is_valid_LHS), | 68 is_valid_LHS_(is_valid_LHS), |
69 is_accessed_from_inner_scope_(false), | 69 is_accessed_from_inner_scope_(false), |
70 is_used_(false) { | 70 is_used_(false) { |
71 // names must be canonicalized for fast equality checks | 71 // names must be canonicalized for fast equality checks |
72 ASSERT(name->IsSymbol()); | 72 ASSERT(name->IsSymbol()); |
73 } | 73 } |
74 | 74 |
75 | 75 |
76 bool Variable::is_global() const { | 76 bool Variable::is_global() const { |
77 // Temporaries are never global, they must always be allocated in the | 77 // Temporaries are never global, they must always be allocated in the |
78 // activation frame. | 78 // activation frame. |
79 return mode_ != TEMPORARY && scope_ != NULL && scope_->is_global_scope(); | 79 return mode_ != TEMPORARY && scope_ != NULL && scope_->is_global_scope(); |
80 } | 80 } |
81 | 81 |
82 } } // namespace v8::internal | 82 } } // namespace v8::internal |
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