| /******************************************************************************* |
| * Copyright (c) 2000, 2013 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.core; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.jdt.core.ICompilationUnit; |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IJavaModelStatus; |
| import org.eclipse.jdt.core.IJavaModelStatusConstants; |
| import org.eclipse.jdt.core.IType; |
| import org.eclipse.jdt.core.JavaModelException; |
| import org.eclipse.jdt.core.Signature; |
| import org.eclipse.jdt.core.dom.ASTNode; |
| import org.eclipse.jdt.core.dom.MethodDeclaration; |
| import org.eclipse.jdt.core.dom.SimpleName; |
| import org.eclipse.jdt.core.dom.SingleVariableDeclaration; |
| import org.eclipse.jdt.core.dom.rewrite.ASTRewrite; |
| import org.eclipse.jdt.internal.core.util.Messages; |
| import org.eclipse.jdt.internal.core.util.Util; |
| |
| /** |
| * <p>This operation creates an instance method. |
| * |
| * <p>Required Attributes:<ul> |
| * <li>Containing type |
| * <li>The source code for the method. No verification of the source is |
| * performed. |
| * </ul> |
| */ |
| @SuppressWarnings("rawtypes") |
| public class CreateMethodOperation extends CreateTypeMemberOperation { |
| |
| protected String[] parameterTypes; |
| |
| /** |
| * When executed, this operation will create a method |
| * in the given type with the specified source. |
| */ |
| public CreateMethodOperation(IType parentElement, String source, boolean force) { |
| super(parentElement, source, force); |
| } |
| /** |
| * Returns the type signatures of the parameter types of the |
| * current <code>MethodDeclaration</code> |
| */ |
| protected String[] convertASTMethodTypesToSignatures() { |
| if (this.parameterTypes == null) { |
| if (this.createdNode != null) { |
| MethodDeclaration methodDeclaration = (MethodDeclaration) this.createdNode; |
| List parameters = methodDeclaration.parameters(); |
| int size = parameters.size(); |
| this.parameterTypes = new String[size]; |
| Iterator iterator = parameters.iterator(); |
| // convert the AST types to signatures |
| for (int i = 0; i < size; i++) { |
| SingleVariableDeclaration parameter = (SingleVariableDeclaration) iterator.next(); |
| String typeSig = Util.getSignature(parameter.getType()); |
| int extraDimensions = parameter.getExtraDimensions(); |
| if (methodDeclaration.isVarargs() && i == size-1) |
| extraDimensions++; |
| this.parameterTypes[i] = Signature.createArraySignature(typeSig, extraDimensions); |
| } |
| } |
| } |
| return this.parameterTypes; |
| } |
| protected ASTNode generateElementAST(ASTRewrite rewriter, ICompilationUnit cu) throws JavaModelException { |
| ASTNode node = super.generateElementAST(rewriter, cu); |
| if (node.getNodeType() != ASTNode.METHOD_DECLARATION) |
| throw new JavaModelException(new JavaModelStatus(IJavaModelStatusConstants.INVALID_CONTENTS)); |
| return node; |
| } |
| /** |
| * @see CreateElementInCUOperation#generateResultHandle |
| */ |
| protected IJavaElement generateResultHandle() { |
| String[] types = convertASTMethodTypesToSignatures(); |
| String name = getASTNodeName(); |
| return getType().getMethod(name, types); |
| } |
| private String getASTNodeName() { |
| return ((MethodDeclaration) this.createdNode).getName().getIdentifier(); |
| } |
| /** |
| * @see CreateElementInCUOperation#getMainTaskName() |
| */ |
| public String getMainTaskName(){ |
| return Messages.operation_createMethodProgress; |
| } |
| protected SimpleName rename(ASTNode node, SimpleName newName) { |
| MethodDeclaration method = (MethodDeclaration) node; |
| SimpleName oldName = method.getName(); |
| method.setName(newName); |
| return oldName; |
| } |
| /** |
| * @see CreateTypeMemberOperation#verifyNameCollision |
| */ |
| protected IJavaModelStatus verifyNameCollision() { |
| if (this.createdNode != null) { |
| IType type = getType(); |
| String name; |
| if (((MethodDeclaration) this.createdNode).isConstructor()) |
| name = type.getElementName(); |
| else |
| name = getASTNodeName(); |
| String[] types = convertASTMethodTypesToSignatures(); |
| if (type.getMethod(name, types).exists()) { |
| return new JavaModelStatus( |
| IJavaModelStatusConstants.NAME_COLLISION, |
| Messages.bind(Messages.status_nameCollision, name)); |
| } |
| } |
| return JavaModelStatus.VERIFIED_OK; |
| } |
| } |