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Issue 8422010: Remove some initialization checks based on source positions. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 9 years, 1 month ago
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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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59 VariableMode mode, 59 VariableMode mode,
60 bool is_valid_LHS, 60 bool is_valid_LHS,
61 Kind kind, 61 Kind kind,
62 InitializationFlag initialization_flag) 62 InitializationFlag initialization_flag)
63 : scope_(scope), 63 : scope_(scope),
64 name_(name), 64 name_(name),
65 mode_(mode), 65 mode_(mode),
66 kind_(kind), 66 kind_(kind),
67 location_(UNALLOCATED), 67 location_(UNALLOCATED),
68 index_(-1), 68 index_(-1),
69 initializer_position_(RelocInfo::kNoPosition),
69 local_if_not_shadowed_(NULL), 70 local_if_not_shadowed_(NULL),
70 is_valid_LHS_(is_valid_LHS), 71 is_valid_LHS_(is_valid_LHS),
71 is_accessed_from_inner_scope_(false), 72 is_accessed_from_inner_scope_(false),
72 is_used_(false), 73 is_used_(false),
73 initialization_flag_(initialization_flag) { 74 initialization_flag_(initialization_flag) {
74 // Names must be canonicalized for fast equality checks. 75 // Names must be canonicalized for fast equality checks.
75 ASSERT(name->IsSymbol()); 76 ASSERT(name->IsSymbol());
76 // Var declared variables never need initialization. 77 // Var declared variables never need initialization.
77 ASSERT(!(mode == VAR && initialization_flag == NEEDS_INITIALIZATION)); 78 ASSERT(!(mode == VAR && initialization_flag == NEEDS_INITIALIZATION));
78 } 79 }
79 80
80 81
81 bool Variable::is_global() const { 82 bool Variable::is_global() const {
82 // Temporaries are never global, they must always be allocated in the 83 // Temporaries are never global, they must always be allocated in the
83 // activation frame. 84 // activation frame.
84 return mode_ != TEMPORARY && scope_ != NULL && scope_->is_global_scope(); 85 return mode_ != TEMPORARY && scope_ != NULL && scope_->is_global_scope();
85 } 86 }
86 87
87 } } // namespace v8::internal 88 } } // namespace v8::internal
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