| /* |
| * Copyright 2012, the Dart project authors. |
| * |
| * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except |
| * in compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.dart.engine.ast; |
| |
| import com.google.dart.engine.scanner.Token; |
| |
| import java.util.List; |
| |
| /** |
| * Instances of the class {@code FunctionTypedFormalParameter} represent a function-typed formal |
| * parameter. |
| * |
| * <pre> |
| * functionSignature ::= |
| * {@link TypeName returnType}? {@link SimpleIdentifier identifier} {@link FormalParameterList formalParameterList} |
| * </pre> |
| * |
| * @coverage dart.engine.ast |
| */ |
| public class FunctionTypedFormalParameter extends NormalFormalParameter { |
| /** |
| * The return type of the function, or {@code null} if the function does not have a return type. |
| */ |
| private TypeName returnType; |
| |
| /** |
| * The parameters of the function-typed parameter. |
| */ |
| private FormalParameterList parameters; |
| |
| /** |
| * Initialize a newly created formal parameter. |
| * |
| * @param comment the documentation comment associated with this parameter |
| * @param metadata the annotations associated with this parameter |
| * @param returnType the return type of the function, or {@code null} if the function does not |
| * have a return type |
| * @param identifier the name of the function-typed parameter |
| * @param parameters the parameters of the function-typed parameter |
| */ |
| public FunctionTypedFormalParameter(Comment comment, List<Annotation> metadata, |
| TypeName returnType, SimpleIdentifier identifier, FormalParameterList parameters) { |
| super(comment, metadata, identifier); |
| this.returnType = becomeParentOf(returnType); |
| this.parameters = becomeParentOf(parameters); |
| } |
| |
| @Override |
| public <R> R accept(AstVisitor<R> visitor) { |
| return visitor.visitFunctionTypedFormalParameter(this); |
| } |
| |
| @Override |
| public Token getBeginToken() { |
| if (returnType != null) { |
| return returnType.getBeginToken(); |
| } |
| return getIdentifier().getBeginToken(); |
| } |
| |
| @Override |
| public Token getEndToken() { |
| return parameters.getEndToken(); |
| } |
| |
| /** |
| * Return the parameters of the function-typed parameter. |
| * |
| * @return the parameters of the function-typed parameter |
| */ |
| public FormalParameterList getParameters() { |
| return parameters; |
| } |
| |
| /** |
| * Return the return type of the function, or {@code null} if the function does not have a return |
| * type. |
| * |
| * @return the return type of the function |
| */ |
| public TypeName getReturnType() { |
| return returnType; |
| } |
| |
| @Override |
| public boolean isConst() { |
| return false; |
| } |
| |
| @Override |
| public boolean isFinal() { |
| return false; |
| } |
| |
| /** |
| * Set the parameters of the function-typed parameter to the given parameters. |
| * |
| * @param parameters the parameters of the function-typed parameter |
| */ |
| public void setParameters(FormalParameterList parameters) { |
| this.parameters = becomeParentOf(parameters); |
| } |
| |
| /** |
| * Set the return type of the function to the given type. |
| * |
| * @param returnType the return type of the function |
| */ |
| public void setReturnType(TypeName returnType) { |
| this.returnType = becomeParentOf(returnType); |
| } |
| |
| @Override |
| public void visitChildren(AstVisitor<?> visitor) { |
| super.visitChildren(visitor); |
| safelyVisitChild(returnType, visitor); |
| safelyVisitChild(getIdentifier(), visitor); |
| safelyVisitChild(parameters, visitor); |
| } |
| } |