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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 // 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 #ifndef V8_SCOPEINFO_H_ | 5 #ifndef V8_SCOPEINFO_H_ | 
| 6 #define V8_SCOPEINFO_H_ | 6 #define V8_SCOPEINFO_H_ | 
| 7 | 7 | 
| 8 #include "src/allocation.h" | 8 #include "src/allocation.h" | 
| 9 #include "src/variables.h" | 9 #include "src/variables.h" | 
| 10 #include "src/zone-inl.h" | 10 #include "src/zone-inl.h" | 
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| 53 | 53 | 
| 54   static const int kLength = 256; | 54   static const int kLength = 256; | 
| 55   struct Key { | 55   struct Key { | 
| 56     Object* data; | 56     Object* data; | 
| 57     String* name; | 57     String* name; | 
| 58   }; | 58   }; | 
| 59 | 59 | 
| 60   struct Value { | 60   struct Value { | 
| 61     Value(VariableMode mode, InitializationFlag init_flag, | 61     Value(VariableMode mode, InitializationFlag init_flag, | 
| 62           MaybeAssignedFlag maybe_assigned_flag, int index) { | 62           MaybeAssignedFlag maybe_assigned_flag, int index) { | 
| 63       ASSERT(ModeField::is_valid(mode)); | 63       DCHECK(ModeField::is_valid(mode)); | 
| 64       ASSERT(InitField::is_valid(init_flag)); | 64       DCHECK(InitField::is_valid(init_flag)); | 
| 65       ASSERT(MaybeAssignedField::is_valid(maybe_assigned_flag)); | 65       DCHECK(MaybeAssignedField::is_valid(maybe_assigned_flag)); | 
| 66       ASSERT(IndexField::is_valid(index)); | 66       DCHECK(IndexField::is_valid(index)); | 
| 67       value_ = ModeField::encode(mode) | IndexField::encode(index) | | 67       value_ = ModeField::encode(mode) | IndexField::encode(index) | | 
| 68                InitField::encode(init_flag) | | 68                InitField::encode(init_flag) | | 
| 69                MaybeAssignedField::encode(maybe_assigned_flag); | 69                MaybeAssignedField::encode(maybe_assigned_flag); | 
| 70       ASSERT(mode == this->mode()); | 70       DCHECK(mode == this->mode()); | 
| 71       ASSERT(init_flag == this->initialization_flag()); | 71       DCHECK(init_flag == this->initialization_flag()); | 
| 72       ASSERT(maybe_assigned_flag == this->maybe_assigned_flag()); | 72       DCHECK(maybe_assigned_flag == this->maybe_assigned_flag()); | 
| 73       ASSERT(index == this->index()); | 73       DCHECK(index == this->index()); | 
| 74     } | 74     } | 
| 75 | 75 | 
| 76     explicit inline Value(uint32_t value) : value_(value) {} | 76     explicit inline Value(uint32_t value) : value_(value) {} | 
| 77 | 77 | 
| 78     uint32_t raw() { return value_; } | 78     uint32_t raw() { return value_; } | 
| 79 | 79 | 
| 80     VariableMode mode() { return ModeField::decode(value_); } | 80     VariableMode mode() { return ModeField::decode(value_); } | 
| 81 | 81 | 
| 82     InitializationFlag initialization_flag() { | 82     InitializationFlag initialization_flag() { | 
| 83       return InitField::decode(value_); | 83       return InitField::decode(value_); | 
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| 165   } | 165   } | 
| 166   void set_index(int i, int index) { | 166   void set_index(int i, int index) { | 
| 167     set(index_offset(i), Smi::FromInt(index)); | 167     set(index_offset(i), Smi::FromInt(index)); | 
| 168   } | 168   } | 
| 169 }; | 169 }; | 
| 170 | 170 | 
| 171 | 171 | 
| 172 } }  // namespace v8::internal | 172 } }  // namespace v8::internal | 
| 173 | 173 | 
| 174 #endif  // V8_SCOPEINFO_H_ | 174 #endif  // V8_SCOPEINFO_H_ | 
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