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| 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | |
| 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. | |
| 4 | |
| 5 class ClassElementParser extends PartialParser { | |
| 6 ClassElementParser(Listener listener) : super(listener); | |
| 7 | |
| 8 Token parseClassBody(Token token) => fullParseClassBody(token); | |
| 9 } | |
| 10 | |
| 11 class PartialClassElement extends ClassElement { | |
| 12 final Token beginToken; | |
| 13 final Token endToken; | |
| 14 Node cachedNode; | |
| 15 | |
| 16 PartialClassElement(SourceString name, | |
| 17 Token this.beginToken, | |
| 18 Token this.endToken, | |
| 19 CompilationUnitElement enclosing) | |
| 20 : super(name, enclosing); | |
| 21 | |
| 22 ClassNode parseNode(DiagnosticListener diagnosticListener) { | |
| 23 if (cachedNode != null) return cachedNode; | |
| 24 MemberListener listener = new MemberListener(diagnosticListener, this); | |
| 25 Parser parser = new ClassElementParser(listener); | |
| 26 Token token = parser.parseTopLevelDeclaration(beginToken); | |
| 27 assert(token === endToken.next); | |
| 28 cachedNode = listener.popNode(); | |
| 29 assert(listener.nodes.isEmpty()); | |
| 30 return cachedNode; | |
| 31 } | |
| 32 | |
| 33 Token position() => beginToken; | |
| 34 | |
| 35 bool isInterface() => beginToken.stringValue === "interface"; | |
| 36 } | |
| 37 | |
| 38 class MemberListener extends NodeListener { | |
| 39 final ClassElement enclosingElement; | |
| 40 | |
| 41 MemberListener(DiagnosticListener listener, | |
| 42 Element enclosingElement) | |
| 43 : this.enclosingElement = enclosingElement, | |
| 44 super(listener, enclosingElement.getCompilationUnit()); | |
| 45 | |
| 46 bool isConstructorName(Node nameNode) { | |
| 47 if (enclosingElement === null || | |
| 48 enclosingElement.kind != ElementKind.CLASS) { | |
| 49 return false; | |
| 50 } | |
| 51 SourceString name; | |
| 52 if (nameNode.asIdentifier() !== null) { | |
| 53 name = nameNode.asIdentifier().source; | |
| 54 } else { | |
| 55 Send send = nameNode.asSend(); | |
| 56 name = send.receiver.asIdentifier().source; | |
| 57 } | |
| 58 return enclosingElement.name == name; | |
| 59 } | |
| 60 | |
| 61 SourceString getMethodNameHack(Node methodName) { | |
| 62 Send send = methodName.asSend(); | |
| 63 if (send === null) return methodName.asIdentifier().source; | |
| 64 Identifier receiver = send.receiver.asIdentifier(); | |
| 65 Identifier selector = send.selector.asIdentifier(); | |
| 66 if (selector.asOperator() !== null) { | |
| 67 return Elements.constructOperatorName(receiver.source, selector.source); | |
| 68 } else { | |
| 69 return Elements.constructConstructorName(receiver.source, | |
| 70 selector.source); | |
| 71 } | |
| 72 } | |
| 73 | |
| 74 void endMethod(Token getOrSet, Token beginToken, Token endToken) { | |
| 75 super.endMethod(getOrSet, beginToken, endToken); | |
| 76 FunctionExpression method = popNode(); | |
| 77 pushNode(null); | |
| 78 bool isConstructor = isConstructorName(method.name); | |
| 79 SourceString name = getMethodNameHack(method.name); | |
| 80 ElementKind kind = ElementKind.FUNCTION; | |
| 81 if (isConstructor) { | |
| 82 if (getOrSet !== null) { | |
| 83 recoverableError('illegal modifier', token: getOrSet); | |
| 84 } | |
| 85 kind = ElementKind.GENERATIVE_CONSTRUCTOR; | |
| 86 } else if (getOrSet !== null) { | |
| 87 kind = (getOrSet.stringValue === 'get') | |
| 88 ? ElementKind.GETTER : ElementKind.SETTER; | |
| 89 } | |
| 90 Element memberElement = | |
| 91 new PartialFunctionElement(name, beginToken, getOrSet, endToken, | |
| 92 kind, method.modifiers, enclosingElement); | |
| 93 enclosingElement.addMember(memberElement, listener); | |
| 94 } | |
| 95 | |
| 96 void endFactoryMethod(Token factoryKeyword, Token periodBeforeName, | |
| 97 Token endToken) { | |
| 98 super.endFactoryMethod(factoryKeyword, periodBeforeName, endToken); | |
| 99 FunctionExpression method = popNode(); | |
| 100 pushNode(null); | |
| 101 SourceString name = getMethodNameHack(method.name); | |
| 102 ElementKind kind = ElementKind.FUNCTION; | |
| 103 Element memberElement = | |
| 104 new PartialFunctionElement(name, factoryKeyword, null, endToken, | |
| 105 kind, method.modifiers, enclosingElement); | |
| 106 enclosingElement.addMember(memberElement, listener); | |
| 107 } | |
| 108 | |
| 109 void endFields(int count, Token beginToken, Token endToken) { | |
| 110 super.endFields(count, beginToken, endToken); | |
| 111 VariableDefinitions variableDefinitions = popNode(); | |
| 112 Modifiers modifiers = variableDefinitions.modifiers; | |
| 113 pushNode(null); | |
| 114 void buildFieldElement(SourceString name, Element fields) { | |
| 115 Element element = new VariableElement( | |
| 116 name, fields, ElementKind.FIELD, enclosingElement); | |
| 117 enclosingElement.addMember(element, listener); | |
| 118 } | |
| 119 buildFieldElements(modifiers, variableDefinitions.definitions, | |
| 120 enclosingElement, | |
| 121 buildFieldElement, beginToken, endToken); | |
| 122 } | |
| 123 | |
| 124 void endInitializer(Token assignmentOperator) { | |
| 125 pushNode(null); // Super expects an expression, but | |
| 126 // ClassElementParser just skips expressions. | |
| 127 super.endInitializer(assignmentOperator); | |
| 128 } | |
| 129 | |
| 130 void endInitializers(int count, Token beginToken, Token endToken) { | |
| 131 pushNode(null); | |
| 132 } | |
| 133 } | |
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Chromium Code Reviews
Issue 9873021:
Move frog/leg to lib/compiler/implementation. (Closed)
Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/