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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 class _InvocationMirror implements Invocation { | 5 class _InvocationMirror implements Invocation { |
| 6 // Constants describing the invocation type. | 6 // Constants describing the invocation type. |
| 7 // _FIELD cannot be generated by regular invocation mirrors. | 7 // _FIELD cannot be generated by regular invocation mirrors. |
| 8 static const int _METHOD = 0; | 8 static const int _METHOD = 0; |
| 9 static const int _GETTER = 1; | 9 static const int _GETTER = 1; |
| 10 static const int _SETTER = 2; | 10 static const int _SETTER = 2; |
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| 33 | 33 |
| 34 // External representation of the invocation mirror; populated on demand. | 34 // External representation of the invocation mirror; populated on demand. |
| 35 Symbol _memberName; | 35 Symbol _memberName; |
| 36 int _type; | 36 int _type; |
| 37 List _positionalArguments; | 37 List _positionalArguments; |
| 38 Map<Symbol, dynamic> _namedArguments; | 38 Map<Symbol, dynamic> _namedArguments; |
| 39 | 39 |
| 40 void _setMemberNameAndType() { | 40 void _setMemberNameAndType() { |
| 41 if (_functionName.startsWith("get:")) { | 41 if (_functionName.startsWith("get:")) { |
| 42 _type = _GETTER; | 42 _type = _GETTER; |
| 43 _memberName = | 43 _memberName = new internal.Symbol.unvalidated(_functionName.substring(4)); |
| 44 new internal.Symbol.unvalidated(_functionName.substring(4)); | |
| 45 } else if (_functionName.startsWith("set:")) { | 44 } else if (_functionName.startsWith("set:")) { |
| 46 _type = _SETTER; | 45 _type = _SETTER; |
| 47 _memberName = | 46 _memberName = |
| 48 new internal.Symbol.unvalidated( | 47 new internal.Symbol.unvalidated(_functionName.substring(4) + "="); |
| 49 _functionName.substring(4) + "="); | |
| 50 } else { | 48 } else { |
| 51 _type = _isSuperInvocation ? (_SUPER << _CALL_SHIFT) | _METHOD : _METHOD; | 49 _type = _isSuperInvocation ? (_SUPER << _CALL_SHIFT) | _METHOD : _METHOD; |
| 52 _memberName = new internal.Symbol.unvalidated(_functionName); | 50 _memberName = new internal.Symbol.unvalidated(_functionName); |
| 53 } | 51 } |
| 54 } | 52 } |
| 55 | 53 |
| 56 Symbol get memberName { | 54 Symbol get memberName { |
| 57 if (_memberName == null) { | 55 if (_memberName == null) { |
| 58 _setMemberNameAndType(); | 56 _setMemberNameAndType(); |
| 59 } | 57 } |
| 60 return _memberName; | 58 return _memberName; |
| 61 } | 59 } |
| 62 | 60 |
| 63 List get positionalArguments { | 61 List get positionalArguments { |
| 64 if (_positionalArguments == null) { | 62 if (_positionalArguments == null) { |
| 65 int numPositionalArguments = _argumentsDescriptor[1]; | 63 int numPositionalArguments = _argumentsDescriptor[1]; |
| 66 // Don't count receiver. | 64 // Don't count receiver. |
| 67 if (numPositionalArguments == 1) { | 65 if (numPositionalArguments == 1) { |
| 68 return _positionalArguments = const []; | 66 return _positionalArguments = const []; |
| 69 } | 67 } |
| 70 // Exclude receiver. | 68 // Exclude receiver. |
| 71 _positionalArguments = | 69 _positionalArguments = |
| 72 new _ImmutableList._from(_arguments, 1, numPositionalArguments - 1); | 70 new _ImmutableList._from(_arguments, 1, numPositionalArguments - 1); |
| 73 } | 71 } |
| 74 return _positionalArguments; | 72 return _positionalArguments; |
| 75 } | 73 } |
| 76 | 74 |
| 77 Map<Symbol, dynamic> get namedArguments { | 75 Map<Symbol, dynamic> get namedArguments { |
| 78 if (_namedArguments == null) { | 76 if (_namedArguments == null) { |
| 79 int numArguments = _argumentsDescriptor[0] - 1; // Exclude receiver. | 77 int numArguments = _argumentsDescriptor[0] - 1; // Exclude receiver. |
| 80 int numPositionalArguments = _argumentsDescriptor[1] - 1; | 78 int numPositionalArguments = _argumentsDescriptor[1] - 1; |
| 81 int numNamedArguments = numArguments - numPositionalArguments; | 79 int numNamedArguments = numArguments - numPositionalArguments; |
| 82 if (numNamedArguments == 0) { | 80 if (numNamedArguments == 0) { |
| 83 return _namedArguments = const {}; | 81 return _namedArguments = const {}; |
| 84 } | 82 } |
| 85 _namedArguments = new Map<Symbol, dynamic>(); | 83 _namedArguments = new Map<Symbol, dynamic>(); |
| 86 for (int i = 0; i < numNamedArguments; i++) { | 84 for (int i = 0; i < numNamedArguments; i++) { |
| 87 String arg_name = _argumentsDescriptor[2 + 2*i]; | 85 String arg_name = _argumentsDescriptor[2 + 2 * i]; |
| 88 var arg_value = _arguments[_argumentsDescriptor[3 + 2*i]]; | 86 var arg_value = _arguments[_argumentsDescriptor[3 + 2 * i]]; |
| 89 _namedArguments[new internal.Symbol.unvalidated(arg_name)] = | 87 _namedArguments[new internal.Symbol.unvalidated(arg_name)] = arg_value; |
| 90 arg_value; | |
| 91 } | 88 } |
| 92 _namedArguments = new Map.unmodifiable(_namedArguments); | 89 _namedArguments = new Map.unmodifiable(_namedArguments); |
| 93 } | 90 } |
| 94 return _namedArguments; | 91 return _namedArguments; |
| 95 } | 92 } |
| 96 | 93 |
| 97 bool get isMethod { | 94 bool get isMethod { |
| 98 if (_type == null) { | 95 if (_type == null) { |
| 99 _setMemberNameAndType(); | 96 _setMemberNameAndType(); |
| 100 } | 97 } |
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| 115 return (_type & _TYPE_MASK) == _GETTER; | 112 return (_type & _TYPE_MASK) == _GETTER; |
| 116 } | 113 } |
| 117 | 114 |
| 118 bool get isSetter { | 115 bool get isSetter { |
| 119 if (_type == null) { | 116 if (_type == null) { |
| 120 _setMemberNameAndType(); | 117 _setMemberNameAndType(); |
| 121 } | 118 } |
| 122 return (_type & _TYPE_MASK) == _SETTER; | 119 return (_type & _TYPE_MASK) == _SETTER; |
| 123 } | 120 } |
| 124 | 121 |
| 125 _InvocationMirror(this._functionName, | 122 _InvocationMirror(this._functionName, this._argumentsDescriptor, |
| 126 this._argumentsDescriptor, | 123 this._arguments, this._isSuperInvocation); |
| 127 this._arguments, | |
| 128 this._isSuperInvocation); | |
| 129 | 124 |
| 130 static _allocateInvocationMirror(String functionName, | 125 static _allocateInvocationMirror(String functionName, |
| 131 List argumentsDescriptor, | 126 List argumentsDescriptor, List arguments, bool isSuperInvocation) { |
| 132 List arguments, | 127 return new _InvocationMirror( |
| 133 bool isSuperInvocation) { | 128 functionName, argumentsDescriptor, arguments, isSuperInvocation); |
| 134 return new _InvocationMirror(functionName, | |
| 135 argumentsDescriptor, | |
| 136 arguments, | |
| 137 isSuperInvocation); | |
| 138 } | 129 } |
| 139 } | 130 } |
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