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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 #include "vm/scopes.h" | 5 #include "vm/scopes.h" |
6 | 6 |
7 #include "vm/object.h" | 7 #include "vm/object.h" |
8 #include "vm/stack_frame.h" | 8 #include "vm/stack_frame.h" |
9 #include "vm/symbols.h" | 9 #include "vm/symbols.h" |
10 | 10 |
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44 while (current_scope != NULL) { | 44 while (current_scope != NULL) { |
45 if (current_scope == scope) { | 45 if (current_scope == scope) { |
46 return true; | 46 return true; |
47 } | 47 } |
48 current_scope = current_scope->parent(); | 48 current_scope = current_scope->parent(); |
49 } | 49 } |
50 return false; | 50 return false; |
51 } | 51 } |
52 | 52 |
53 | 53 |
54 void LocalScope::Clear() { | |
55 variables_.Clear(); | |
56 } | |
57 | |
58 | |
59 bool LocalScope::AddVariable(LocalVariable* variable) { | 54 bool LocalScope::AddVariable(LocalVariable* variable) { |
60 ASSERT(variable != NULL); | 55 ASSERT(variable != NULL); |
61 if (LocalLookupVariable(variable->name()) != NULL) { | 56 if (LocalLookupVariable(variable->name()) != NULL) { |
62 return false; | 57 return false; |
63 } | 58 } |
64 variables_.Add(variable); | 59 variables_.Add(variable); |
65 if (variable->owner() == NULL) { | 60 if (variable->owner() == NULL) { |
66 // Variables must be added to their owner scope first. Subsequent calls | 61 // Variables must be added to their owner scope first. Subsequent calls |
67 // to 'add' treat the variable as an alias. | 62 // to 'add' treat the variable as an alias. |
68 variable->set_owner(this); | 63 variable->set_owner(this); |
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636 return fixed_parameter_count - (index() - kParamEndSlotFromFp); | 631 return fixed_parameter_count - (index() - kParamEndSlotFromFp); |
637 } else { | 632 } else { |
638 // Shift negative indexes so that the lowest one is 0 (they are still | 633 // Shift negative indexes so that the lowest one is 0 (they are still |
639 // non-positive). | 634 // non-positive). |
640 return fixed_parameter_count - (index() - kFirstLocalSlotFromFp); | 635 return fixed_parameter_count - (index() - kFirstLocalSlotFromFp); |
641 } | 636 } |
642 } | 637 } |
643 | 638 |
644 | 639 |
645 } // namespace dart | 640 } // namespace dart |
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