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Example 1 with BodyDeclarationRewrite

use of org.eclipse.jdt.internal.corext.dom.BodyDeclarationRewrite in project che by eclipse.

the class ExtractMethodRefactoring method createChange.

/* (non-Javadoc)
	 * Method declared in IRefactoring
	 */
@Override
public Change createChange(IProgressMonitor pm) throws CoreException {
    if (fMethodName == null)
        return null;
    //$NON-NLS-1$
    pm.beginTask("", 2);
    try {
        fAnalyzer.aboutToCreateChange();
        BodyDeclaration declaration = fAnalyzer.getEnclosingBodyDeclaration();
        fRewriter = ASTRewrite.create(declaration.getAST());
        final CompilationUnitChange result = new CompilationUnitChange(RefactoringCoreMessages.ExtractMethodRefactoring_change_name, fCUnit);
        result.setSaveMode(TextFileChange.KEEP_SAVE_STATE);
        result.setDescriptor(new RefactoringChangeDescriptor(getRefactoringDescriptor()));
        MultiTextEdit root = new MultiTextEdit();
        result.setEdit(root);
        ASTNode[] selectedNodes = fAnalyzer.getSelectedNodes();
        fRewriter.setTargetSourceRangeComputer(new SelectionAwareSourceRangeComputer(selectedNodes, fCUnit.getBuffer(), fSelectionStart, fSelectionLength));
        TextEditGroup substituteDesc = new TextEditGroup(Messages.format(RefactoringCoreMessages.ExtractMethodRefactoring_substitute_with_call, BasicElementLabels.getJavaElementName(fMethodName)));
        result.addTextEditGroup(substituteDesc);
        MethodDeclaration mm = createNewMethod(selectedNodes, fCUnit.findRecommendedLineSeparator(), substituteDesc);
        if (fLinkedProposalModel != null) {
            LinkedProposalPositionGroup typeGroup = fLinkedProposalModel.getPositionGroup(KEY_TYPE, true);
            typeGroup.addPosition(fRewriter.track(mm.getReturnType2()), false);
            ITypeBinding typeBinding = fAnalyzer.getReturnTypeBinding();
            if (typeBinding != null) {
                ITypeBinding[] relaxingTypes = ASTResolving.getNarrowingTypes(fAST, typeBinding);
                for (int i = 0; i < relaxingTypes.length; i++) {
                    typeGroup.addProposal(relaxingTypes[i], fCUnit, relaxingTypes.length - i);
                }
            }
            LinkedProposalPositionGroup nameGroup = fLinkedProposalModel.getPositionGroup(KEY_NAME, true);
            nameGroup.addPosition(fRewriter.track(mm.getName()), false);
            ModifierCorrectionSubProcessor.installLinkedVisibilityProposals(fLinkedProposalModel, fRewriter, mm.modifiers(), false);
        }
        TextEditGroup insertDesc = new TextEditGroup(Messages.format(RefactoringCoreMessages.ExtractMethodRefactoring_add_method, BasicElementLabels.getJavaElementName(fMethodName)));
        result.addTextEditGroup(insertDesc);
        if (fDestination == ASTResolving.findParentType(declaration.getParent())) {
            ChildListPropertyDescriptor desc = (ChildListPropertyDescriptor) declaration.getLocationInParent();
            ListRewrite container = fRewriter.getListRewrite(declaration.getParent(), desc);
            container.insertAfter(mm, declaration, insertDesc);
        } else {
            BodyDeclarationRewrite container = BodyDeclarationRewrite.create(fRewriter, fDestination);
            container.insert(mm, insertDesc);
        }
        replaceDuplicates(result, mm.getModifiers());
        replaceBranches(result);
        if (fImportRewriter.hasRecordedChanges()) {
            TextEdit edit = fImportRewriter.rewriteImports(null);
            root.addChild(edit);
            result.addTextEditGroup(new TextEditGroup(RefactoringCoreMessages.ExtractMethodRefactoring_organize_imports, new TextEdit[] { edit }));
        }
        root.addChild(fRewriter.rewriteAST());
        return result;
    } finally {
        pm.done();
    }
}
Also used : SelectionAwareSourceRangeComputer(org.eclipse.jdt.internal.corext.refactoring.util.SelectionAwareSourceRangeComputer) MethodDeclaration(org.eclipse.jdt.core.dom.MethodDeclaration) ListRewrite(org.eclipse.jdt.core.dom.rewrite.ListRewrite) RefactoringChangeDescriptor(org.eclipse.ltk.core.refactoring.RefactoringChangeDescriptor) ChildListPropertyDescriptor(org.eclipse.jdt.core.dom.ChildListPropertyDescriptor) BodyDeclarationRewrite(org.eclipse.jdt.internal.corext.dom.BodyDeclarationRewrite) MultiTextEdit(org.eclipse.text.edits.MultiTextEdit) TextEdit(org.eclipse.text.edits.TextEdit) ITypeBinding(org.eclipse.jdt.core.dom.ITypeBinding) ASTNode(org.eclipse.jdt.core.dom.ASTNode) BodyDeclaration(org.eclipse.jdt.core.dom.BodyDeclaration) TextEditGroup(org.eclipse.text.edits.TextEditGroup) LinkedProposalPositionGroup(org.eclipse.jdt.internal.corext.fix.LinkedProposalPositionGroup) MultiTextEdit(org.eclipse.text.edits.MultiTextEdit) CompilationUnitChange(org.eclipse.jdt.core.refactoring.CompilationUnitChange)

Aggregations

ASTNode (org.eclipse.jdt.core.dom.ASTNode)1 BodyDeclaration (org.eclipse.jdt.core.dom.BodyDeclaration)1 ChildListPropertyDescriptor (org.eclipse.jdt.core.dom.ChildListPropertyDescriptor)1 ITypeBinding (org.eclipse.jdt.core.dom.ITypeBinding)1 MethodDeclaration (org.eclipse.jdt.core.dom.MethodDeclaration)1 ListRewrite (org.eclipse.jdt.core.dom.rewrite.ListRewrite)1 CompilationUnitChange (org.eclipse.jdt.core.refactoring.CompilationUnitChange)1 BodyDeclarationRewrite (org.eclipse.jdt.internal.corext.dom.BodyDeclarationRewrite)1 LinkedProposalPositionGroup (org.eclipse.jdt.internal.corext.fix.LinkedProposalPositionGroup)1 SelectionAwareSourceRangeComputer (org.eclipse.jdt.internal.corext.refactoring.util.SelectionAwareSourceRangeComputer)1 RefactoringChangeDescriptor (org.eclipse.ltk.core.refactoring.RefactoringChangeDescriptor)1 MultiTextEdit (org.eclipse.text.edits.MultiTextEdit)1 TextEdit (org.eclipse.text.edits.TextEdit)1 TextEditGroup (org.eclipse.text.edits.TextEditGroup)1