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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef RUNTIME_VM_SCOPES_H_ | 5 #ifndef RUNTIME_VM_SCOPES_H_ |
| 6 #define RUNTIME_VM_SCOPES_H_ | 6 #define RUNTIME_VM_SCOPES_H_ |
| 7 | 7 |
| 8 #include "platform/assert.h" | 8 #include "platform/assert.h" |
| 9 #include "platform/globals.h" | 9 #include "platform/globals.h" |
| 10 #include "vm/allocation.h" | 10 #include "vm/allocation.h" |
| 11 #include "vm/growable_array.h" | 11 #include "vm/growable_array.h" |
| 12 #include "vm/object.h" | 12 #include "vm/object.h" |
| 13 #include "vm/raw_object.h" | 13 #include "vm/raw_object.h" |
| 14 #include "vm/symbols.h" | 14 #include "vm/symbols.h" |
| 15 #include "vm/token.h" | 15 #include "vm/token.h" |
| 16 | 16 |
| 17 namespace dart { | 17 namespace dart { |
| 18 | 18 |
| 19 class LocalScope; | 19 class LocalScope; |
| 20 | 20 |
| 21 | |
| 22 class LocalVariable : public ZoneAllocated { | 21 class LocalVariable : public ZoneAllocated { |
| 23 public: | 22 public: |
| 24 LocalVariable(TokenPosition declaration_pos, | 23 LocalVariable(TokenPosition declaration_pos, |
| 25 TokenPosition token_pos, | 24 TokenPosition token_pos, |
| 26 const String& name, | 25 const String& name, |
| 27 const AbstractType& type) | 26 const AbstractType& type) |
| 28 : declaration_pos_(declaration_pos), | 27 : declaration_pos_(declaration_pos), |
| 29 token_pos_(token_pos), | 28 token_pos_(token_pos), |
| 30 name_(name), | 29 name_(name), |
| 31 owner_(NULL), | 30 owner_(NULL), |
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| 125 bool is_invisible_; | 124 bool is_invisible_; |
| 126 bool is_captured_parameter_; | 125 bool is_captured_parameter_; |
| 127 bool is_forced_stack_; | 126 bool is_forced_stack_; |
| 128 int index_; // Allocation index in words relative to frame pointer (if not | 127 int index_; // Allocation index in words relative to frame pointer (if not |
| 129 // captured), or relative to the context pointer (if captured). | 128 // captured), or relative to the context pointer (if captured). |
| 130 | 129 |
| 131 friend class LocalScope; | 130 friend class LocalScope; |
| 132 DISALLOW_COPY_AND_ASSIGN(LocalVariable); | 131 DISALLOW_COPY_AND_ASSIGN(LocalVariable); |
| 133 }; | 132 }; |
| 134 | 133 |
| 135 | |
| 136 class NameReference : public ZoneAllocated { | 134 class NameReference : public ZoneAllocated { |
| 137 public: | 135 public: |
| 138 NameReference(TokenPosition token_pos, const String& name) | 136 NameReference(TokenPosition token_pos, const String& name) |
| 139 : token_pos_(token_pos), name_(name) { | 137 : token_pos_(token_pos), name_(name) { |
| 140 ASSERT(name.IsSymbol()); | 138 ASSERT(name.IsSymbol()); |
| 141 } | 139 } |
| 142 const String& name() const { return name_; } | 140 const String& name() const { return name_; } |
| 143 TokenPosition token_pos() const { return token_pos_; } | 141 TokenPosition token_pos() const { return token_pos_; } |
| 144 void set_token_pos(TokenPosition value) { token_pos_ = value; } | 142 void set_token_pos(TokenPosition value) { token_pos_ = value; } |
| 145 | 143 |
| 146 private: | 144 private: |
| 147 TokenPosition token_pos_; | 145 TokenPosition token_pos_; |
| 148 const String& name_; | 146 const String& name_; |
| 149 }; | 147 }; |
| 150 | 148 |
| 151 | |
| 152 class SourceLabel : public ZoneAllocated { | 149 class SourceLabel : public ZoneAllocated { |
| 153 public: | 150 public: |
| 154 enum Kind { | 151 enum Kind { |
| 155 kFor, | 152 kFor, |
| 156 kWhile, | 153 kWhile, |
| 157 kDoWhile, | 154 kDoWhile, |
| 158 kSwitch, | 155 kSwitch, |
| 159 kCase, | 156 kCase, |
| 160 kTry, | 157 kTry, |
| 161 kCatch, | 158 kCatch, |
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| 192 private: | 189 private: |
| 193 const TokenPosition token_pos_; | 190 const TokenPosition token_pos_; |
| 194 const String& name_; | 191 const String& name_; |
| 195 LocalScope* owner_; // Local scope declaring this label. | 192 LocalScope* owner_; // Local scope declaring this label. |
| 196 | 193 |
| 197 Kind kind_; | 194 Kind kind_; |
| 198 | 195 |
| 199 DISALLOW_COPY_AND_ASSIGN(SourceLabel); | 196 DISALLOW_COPY_AND_ASSIGN(SourceLabel); |
| 200 }; | 197 }; |
| 201 | 198 |
| 202 | |
| 203 class LocalScope : public ZoneAllocated { | 199 class LocalScope : public ZoneAllocated { |
| 204 public: | 200 public: |
| 205 LocalScope(LocalScope* parent, int function_level, int loop_level); | 201 LocalScope(LocalScope* parent, int function_level, int loop_level); |
| 206 | 202 |
| 207 LocalScope* parent() const { return parent_; } | 203 LocalScope* parent() const { return parent_; } |
| 208 LocalScope* child() const { return child_; } | 204 LocalScope* child() const { return child_; } |
| 209 LocalScope* sibling() const { return sibling_; } | 205 LocalScope* sibling() const { return sibling_; } |
| 210 int function_level() const { return function_level_; } | 206 int function_level() const { return function_level_; } |
| 211 int loop_level() const { return loop_level_; } | 207 int loop_level() const { return loop_level_; } |
| 212 | 208 |
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| 376 // List of names referenced in this scope and its children that | 372 // List of names referenced in this scope and its children that |
| 377 // are not resolved to local variables. | 373 // are not resolved to local variables. |
| 378 GrowableArray<NameReference*> referenced_; | 374 GrowableArray<NameReference*> referenced_; |
| 379 | 375 |
| 380 DISALLOW_COPY_AND_ASSIGN(LocalScope); | 376 DISALLOW_COPY_AND_ASSIGN(LocalScope); |
| 381 }; | 377 }; |
| 382 | 378 |
| 383 } // namespace dart | 379 } // namespace dart |
| 384 | 380 |
| 385 #endif // RUNTIME_VM_SCOPES_H_ | 381 #endif // RUNTIME_VM_SCOPES_H_ |
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