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1 // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2015, 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 library dart2js.call_structure; | 5 library dart2js.call_structure; |
6 | 6 |
7 import '../common.dart'; | 7 import '../common.dart'; |
8 import '../common/names.dart' show | 8 import '../common/names.dart' show Identifiers, Names, Selectors; |
9 Identifiers, | |
10 Names, | |
11 Selectors; | |
12 import '../elements/elements.dart'; | 9 import '../elements/elements.dart'; |
13 import '../tree/tree.dart'; | 10 import '../tree/tree.dart'; |
14 import '../util/util.dart'; | 11 import '../util/util.dart'; |
15 | 12 |
16 import 'selector.dart' show | 13 import 'selector.dart' show Selector; |
17 Selector; | |
18 | 14 |
19 /// The structure of the arguments at a call-site. | 15 /// The structure of the arguments at a call-site. |
20 // TODO(johnniwinther): Should these be cached? | 16 // TODO(johnniwinther): Should these be cached? |
21 // TODO(johnniwinther): Should isGetter/isSetter be part of the call structure | 17 // TODO(johnniwinther): Should isGetter/isSetter be part of the call structure |
22 // instead of the selector? | 18 // instead of the selector? |
23 class CallStructure { | 19 class CallStructure { |
24 static const CallStructure NO_ARGS = const CallStructure.unnamed(0); | 20 static const CallStructure NO_ARGS = const CallStructure.unnamed(0); |
25 static const CallStructure ONE_ARG = const CallStructure.unnamed(1); | 21 static const CallStructure ONE_ARG = const CallStructure.unnamed(1); |
26 static const CallStructure TWO_ARGS = const CallStructure.unnamed(2); | 22 static const CallStructure TWO_ARGS = const CallStructure.unnamed(2); |
27 | 23 |
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57 | 53 |
58 /// A description of the argument structure. | 54 /// A description of the argument structure. |
59 String structureToString() => 'arity=$argumentCount'; | 55 String structureToString() => 'arity=$argumentCount'; |
60 | 56 |
61 String toString() => 'CallStructure(${structureToString()})'; | 57 String toString() => 'CallStructure(${structureToString()})'; |
62 | 58 |
63 Selector get callSelector => new Selector.call(Names.call, this); | 59 Selector get callSelector => new Selector.call(Names.call, this); |
64 | 60 |
65 bool match(CallStructure other) { | 61 bool match(CallStructure other) { |
66 if (identical(this, other)) return true; | 62 if (identical(this, other)) return true; |
67 return this.argumentCount == other.argumentCount | 63 return this.argumentCount == other.argumentCount && |
68 && this.namedArgumentCount == other.namedArgumentCount | 64 this.namedArgumentCount == other.namedArgumentCount && |
69 && sameNames(this.namedArguments, other.namedArguments); | 65 sameNames(this.namedArguments, other.namedArguments); |
70 } | 66 } |
71 | 67 |
72 // TODO(johnniwinther): Cache hash code? | 68 // TODO(johnniwinther): Cache hash code? |
73 int get hashCode { | 69 int get hashCode { |
74 return Hashing.listHash(namedArguments, | 70 return Hashing.listHash(namedArguments, |
75 Hashing.objectHash(argumentCount, namedArguments.length)); | 71 Hashing.objectHash(argumentCount, namedArguments.length)); |
76 } | 72 } |
77 | 73 |
78 bool operator ==(other) { | 74 bool operator ==(other) { |
79 if (other is! CallStructure) return false; | 75 if (other is! CallStructure) return false; |
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173 * | 169 * |
174 * [compileArgument] is a function that returns a compiled version | 170 * [compileArgument] is a function that returns a compiled version |
175 * of a parameter of [callee]. | 171 * of a parameter of [callee]. |
176 * | 172 * |
177 * [compileConstant] is a function that returns a compiled constant | 173 * [compileConstant] is a function that returns a compiled constant |
178 * of an optional argument that is not in the parameters of [callee]. | 174 * of an optional argument that is not in the parameters of [callee]. |
179 * | 175 * |
180 * Returns [:true:] if the signature of the [caller] matches the | 176 * Returns [:true:] if the signature of the [caller] matches the |
181 * signature of the [callee], [:false:] otherwise. | 177 * signature of the [callee], [:false:] otherwise. |
182 */ | 178 */ |
183 static /*<T>*/ bool addForwardingElementArgumentsToList( | 179 static/*<T>*/ bool addForwardingElementArgumentsToList( |
184 ConstructorElement caller, | 180 ConstructorElement caller, |
185 List/*<T>*/ list, | 181 List/*<T>*/ list, |
186 ConstructorElement callee, | 182 ConstructorElement callee, |
187 /*T*/ compileArgument(ParameterElement element), | 183 /*T*/ compileArgument(ParameterElement element), |
188 /*T*/ compileConstant(ParameterElement element)) { | 184 /*T*/ compileConstant(ParameterElement element)) { |
189 assert(invariant(caller, !callee.isMalformed, | 185 assert(invariant(caller, !callee.isMalformed, |
190 message: "Cannot compute arguments to malformed constructor: " | 186 message: "Cannot compute arguments to malformed constructor: " |
191 "$caller calling $callee.")); | 187 "$caller calling $callee.")); |
192 | 188 |
193 FunctionSignature signature = caller.functionSignature; | 189 FunctionSignature signature = caller.functionSignature; |
194 Map<Node, ParameterElement> mapping = <Node, ParameterElement>{}; | 190 Map<Node, ParameterElement> mapping = <Node, ParameterElement>{}; |
195 | 191 |
196 // TODO(ngeoffray): This is a hack that fakes up AST nodes, so | 192 // TODO(ngeoffray): This is a hack that fakes up AST nodes, so |
197 // that we can call [addArgumentsToList]. | 193 // that we can call [addArgumentsToList]. |
198 Link<Node> computeCallNodesFromParameters() { | 194 Link<Node> computeCallNodesFromParameters() { |
199 LinkBuilder<Node> builder = new LinkBuilder<Node>(); | 195 LinkBuilder<Node> builder = new LinkBuilder<Node>(); |
200 signature.forEachRequiredParameter((ParameterElement element) { | 196 signature.forEachRequiredParameter((ParameterElement element) { |
201 Node node = element.node; | 197 Node node = element.node; |
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229 if (signature.optionalParametersAreNamed) { | 225 if (signature.optionalParametersAreNamed) { |
230 namedParameters = | 226 namedParameters = |
231 signature.optionalParameters.map((e) => e.name).toList(); | 227 signature.optionalParameters.map((e) => e.name).toList(); |
232 } | 228 } |
233 CallStructure callStructure = | 229 CallStructure callStructure = |
234 new CallStructure(signature.parameterCount, namedParameters); | 230 new CallStructure(signature.parameterCount, namedParameters); |
235 if (!callStructure.signatureApplies(signature)) { | 231 if (!callStructure.signatureApplies(signature)) { |
236 return false; | 232 return false; |
237 } | 233 } |
238 list.addAll(callStructure.makeArgumentsList( | 234 list.addAll(callStructure.makeArgumentsList( |
239 nodes, | 235 nodes, callee, internalCompileArgument, compileConstant)); |
240 callee, | |
241 internalCompileArgument, | |
242 compileConstant)); | |
243 | 236 |
244 return true; | 237 return true; |
245 } | 238 } |
246 | 239 |
247 static bool sameNames(List<String> first, List<String> second) { | 240 static bool sameNames(List<String> first, List<String> second) { |
248 for (int i = 0; i < first.length; i++) { | 241 for (int i = 0; i < first.length; i++) { |
249 if (first[i] != second[i]) return false; | 242 if (first[i] != second[i]) return false; |
250 } | 243 } |
251 return true; | 244 return true; |
252 } | 245 } |
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283 return first.compareTo(second); | 276 return first.compareTo(second); |
284 }); | 277 }); |
285 return _orderedNamedArguments; | 278 return _orderedNamedArguments; |
286 } | 279 } |
287 | 280 |
288 @override | 281 @override |
289 String structureToString() { | 282 String structureToString() { |
290 return 'arity=$argumentCount, named=[${namedArguments.join(', ')}]'; | 283 return 'arity=$argumentCount, named=[${namedArguments.join(', ')}]'; |
291 } | 284 } |
292 } | 285 } |
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