| /******************************************************************************* |
| * Copyright (c) 2000, 2019 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Pierre-Yves B. <pyvesdev@gmail.com> - [inline] Allow inlining of local variable initialized to null. - https://bugs.eclipse.org/93850 |
| * Microsoft Corporation - copied to jdt.core.manipulation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.corext.refactoring.rename; |
| |
| import java.util.Arrays; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.NullProgressMonitor; |
| |
| import org.eclipse.text.edits.TextEdit; |
| |
| import org.eclipse.jface.text.IRegion; |
| |
| import org.eclipse.ltk.core.refactoring.RefactoringStatus; |
| import org.eclipse.ltk.core.refactoring.RefactoringStatusContext; |
| import org.eclipse.ltk.core.refactoring.RefactoringStatusEntry; |
| import org.eclipse.ltk.core.refactoring.TextChange; |
| |
| import org.eclipse.jdt.core.ICompilationUnit; |
| import org.eclipse.jdt.core.compiler.IProblem; |
| import org.eclipse.jdt.core.dom.ASTNode; |
| import org.eclipse.jdt.core.dom.Block; |
| import org.eclipse.jdt.core.dom.CompilationUnit; |
| import org.eclipse.jdt.core.dom.LambdaExpression; |
| import org.eclipse.jdt.core.dom.MethodDeclaration; |
| import org.eclipse.jdt.core.dom.NodeFinder; |
| import org.eclipse.jdt.core.dom.SimpleName; |
| import org.eclipse.jdt.core.dom.VariableDeclaration; |
| import org.eclipse.jdt.core.refactoring.CompilationUnitChange; |
| |
| import org.eclipse.jdt.internal.core.manipulation.util.BasicElementLabels; |
| import org.eclipse.jdt.internal.corext.SourceRangeFactory; |
| import org.eclipse.jdt.internal.corext.dom.ASTNodes; |
| import org.eclipse.jdt.internal.corext.dom.IASTSharedValues; |
| import org.eclipse.jdt.internal.corext.refactoring.RefactoringCoreMessages; |
| import org.eclipse.jdt.internal.corext.refactoring.base.JavaStringStatusContext; |
| import org.eclipse.jdt.internal.corext.refactoring.util.RefactoringASTParser; |
| import org.eclipse.jdt.internal.corext.util.Messages; |
| |
| public class RefactoringAnalyzeUtil { |
| |
| private RefactoringAnalyzeUtil() { |
| //no instances |
| } |
| |
| public static IRegion[] getNewRanges(TextEdit[] edits, TextChange change){ |
| IRegion[] result= new IRegion[edits.length]; |
| for (int i= 0; i < edits.length; i++) { |
| result[i]= RefactoringAnalyzeUtil.getNewTextRange(edits[i], change); |
| } |
| return result; |
| } |
| |
| public static RefactoringStatus reportProblemNodes(String modifiedWorkingCopySource, SimpleName[] problemNodes) { |
| RefactoringStatus result= new RefactoringStatus(); |
| for (SimpleName problemNode : problemNodes) { |
| RefactoringStatusContext context= new JavaStringStatusContext(modifiedWorkingCopySource, SourceRangeFactory.create(problemNode)); |
| result.addError(Messages.format(RefactoringCoreMessages.RefactoringAnalyzeUtil_name_collision, BasicElementLabels.getJavaElementName(problemNode.getIdentifier())), context); |
| } |
| return result; |
| } |
| |
| public static LambdaExpression getLambdaExpression(TextEdit edit, TextChange change, CompilationUnit cuNode) { |
| ASTNode decl= RefactoringAnalyzeUtil.findSimpleNameNode(RefactoringAnalyzeUtil.getNewTextRange(edit, change), cuNode); |
| return (ASTNodes.getParent(decl, LambdaExpression.class)); |
| } |
| |
| public static MethodDeclaration getMethodDeclaration(TextEdit edit, TextChange change, CompilationUnit cuNode){ |
| ASTNode decl= RefactoringAnalyzeUtil.findSimpleNameNode(RefactoringAnalyzeUtil.getNewTextRange(edit, change), cuNode); |
| return (ASTNodes.getParent(decl, MethodDeclaration.class)); |
| } |
| |
| public static Block getBlock(TextEdit edit, TextChange change, CompilationUnit cuNode){ |
| ASTNode decl= RefactoringAnalyzeUtil.findSimpleNameNode(RefactoringAnalyzeUtil.getNewTextRange(edit, change), cuNode); |
| return (ASTNodes.getParent(decl, Block.class)); |
| } |
| |
| public static IProblem[] getIntroducedCompileProblems(CompilationUnit newCUNode, CompilationUnit oldCuNode) { |
| Set<IProblem> subResult= new HashSet<>(); |
| Set<IProblem> oldProblems= getOldProblems(oldCuNode); |
| IProblem[] newProblems= ASTNodes.getProblems(newCUNode, ASTNodes.INCLUDE_ALL_PARENTS, ASTNodes.PROBLEMS); |
| for (IProblem newProblem : newProblems) { |
| IProblem correspondingOld= findCorrespondingProblem(oldProblems, newProblem); |
| if (correspondingOld == null) |
| subResult.add(newProblem); |
| } |
| return subResult.toArray(new IProblem[subResult.size()]); |
| } |
| |
| public static RefactoringStatus checkNewSource(CompilationUnitChange change, ICompilationUnit originalCu, CompilationUnit oldCuNode, IProgressMonitor pm) throws CoreException { |
| RefactoringStatus result= new RefactoringStatus(); |
| String newCuSource= change.getPreviewContent(new NullProgressMonitor()); |
| CompilationUnit newCuNode= new RefactoringASTParser(IASTSharedValues.SHARED_AST_LEVEL).parse(newCuSource, originalCu, true, true, pm); |
| IProblem[] newProblems= getIntroducedCompileProblems(newCuNode, oldCuNode); |
| for (IProblem problem : newProblems) { |
| if (problem.isError()) |
| result.addEntry(new RefactoringStatusEntry(RefactoringStatus.ERROR, problem.getMessage(), new JavaStringStatusContext(newCuSource, SourceRangeFactory.create(problem)))); |
| } |
| return result; |
| } |
| |
| public static IRegion getNewTextRange(TextEdit edit, TextChange change){ |
| return change.getPreviewEdit(edit).getRegion(); |
| } |
| |
| private static IProblem findCorrespondingProblem(Set<IProblem> oldProblems, IProblem iProblem) { |
| for (IProblem oldProblem : oldProblems) { |
| if (isCorresponding(oldProblem, iProblem)) |
| return oldProblem; |
| } |
| return null; |
| } |
| |
| private static boolean isCorresponding(IProblem oldProblem, IProblem iProblem) { |
| if (oldProblem.getID() != iProblem.getID()) |
| return false; |
| if (! oldProblem.getMessage().equals(iProblem.getMessage())) |
| return false; |
| return true; |
| } |
| |
| private static SimpleName getSimpleName(ASTNode node){ |
| if (node instanceof SimpleName) |
| return (SimpleName)node; |
| if (node instanceof VariableDeclaration) |
| return ((VariableDeclaration)node).getName(); |
| return null; |
| } |
| |
| private static SimpleName findSimpleNameNode(IRegion range, CompilationUnit cuNode) { |
| ASTNode node= NodeFinder.perform(cuNode, range.getOffset(), range.getLength()); |
| return getSimpleName(node); |
| } |
| |
| private static Set<IProblem> getOldProblems(CompilationUnit oldCuNode) { |
| return new HashSet<>(Arrays.asList(ASTNodes.getProblems(oldCuNode, ASTNodes.INCLUDE_ALL_PARENTS, ASTNodes.PROBLEMS))); |
| } |
| } |