Examples with MethodDeclaration org.eclipse.jdt.core.dom.MethodDeclaration used on opensource projects

Example 21 with MethodDeclaration

use of org.eclipse.jdt.core.dom.MethodDeclaration in project che by eclipse.

the class IntroduceFactoryRefactoring method findCtorArgNames.

/**
	 * @return an array containing the argument names for the constructor
	 * identified by <code>fCtorBinding</code>, if available, or default
	 * names if unavailable (e.g. if the constructor resides in a binary unit).
	 */
private String[] findCtorArgNames() {
    int numArgs = fCtorBinding.getParameterTypes().length;
    String[] names = new String[numArgs];
    CompilationUnit ctorUnit = (CompilationUnit) ASTNodes.getParent(fCtorOwningClass, CompilationUnit.class);
    MethodDeclaration ctorDecl = (MethodDeclaration) ctorUnit.findDeclaringNode(fCtorBinding.getKey());
    if (ctorDecl != null) {
        List<SingleVariableDeclaration> formalArgs = ctorDecl.parameters();
        int i = 0;
        for (Iterator<SingleVariableDeclaration> iter = formalArgs.iterator(); iter.hasNext(); i++) {
            SingleVariableDeclaration svd = iter.next();
            names[i] = svd.getName().getIdentifier();
        }
        return names;
    }
    // Have no way of getting the formal argument names; just fake it.
    for (int i = 0; i < numArgs; i++) //$NON-NLS-1$
    names[i] = "arg" + (i + 1);
    return names;
}

Example 22 with MethodDeclaration

use of org.eclipse.jdt.core.dom.MethodDeclaration in project che by eclipse.

the class ExtractMethodRefactoring method getRefactoringDescriptor.

private ExtractMethodDescriptor getRefactoringDescriptor() {
    final Map<String, String> arguments = new HashMap<String, String>();
    String project = null;
    IJavaProject javaProject = fCUnit.getJavaProject();
    if (javaProject != null)
        project = javaProject.getElementName();
    ITypeBinding type = null;
    if (fDestination instanceof AbstractTypeDeclaration) {
        final AbstractTypeDeclaration decl = (AbstractTypeDeclaration) fDestination;
        type = decl.resolveBinding();
    } else if (fDestination instanceof AnonymousClassDeclaration) {
        final AnonymousClassDeclaration decl = (AnonymousClassDeclaration) fDestination;
        type = decl.resolveBinding();
    }
    IMethodBinding method = null;
    final BodyDeclaration enclosing = fAnalyzer.getEnclosingBodyDeclaration();
    if (enclosing instanceof MethodDeclaration) {
        final MethodDeclaration node = (MethodDeclaration) enclosing;
        method = node.resolveBinding();
    }
    final int flags = RefactoringDescriptor.STRUCTURAL_CHANGE | JavaRefactoringDescriptor.JAR_REFACTORING | JavaRefactoringDescriptor.JAR_SOURCE_ATTACHMENT;
    final String description = Messages.format(RefactoringCoreMessages.ExtractMethodRefactoring_descriptor_description_short, BasicElementLabels.getJavaElementName(fMethodName));
    final String label = method != null ? BindingLabelProvider.getBindingLabel(method, JavaElementLabels.ALL_FULLY_QUALIFIED) : '{' + JavaElementLabels.ELLIPSIS_STRING + '}';
    final String header = Messages.format(RefactoringCoreMessages.ExtractMethodRefactoring_descriptor_description, new String[] { BasicElementLabels.getJavaElementName(getSignature()), label, BindingLabelProvider.getBindingLabel(type, JavaElementLabels.ALL_FULLY_QUALIFIED) });
    final JDTRefactoringDescriptorComment comment = new JDTRefactoringDescriptorComment(project, this, header);
    comment.addSetting(Messages.format(RefactoringCoreMessages.ExtractMethodRefactoring_name_pattern, BasicElementLabels.getJavaElementName(fMethodName)));
    comment.addSetting(Messages.format(RefactoringCoreMessages.ExtractMethodRefactoring_destination_pattern, BindingLabelProvider.getBindingLabel(type, JavaElementLabels.ALL_FULLY_QUALIFIED)));
    String visibility = JdtFlags.getVisibilityString(fVisibility);
    if (//$NON-NLS-1$
    "".equals(visibility))
        visibility = RefactoringCoreMessages.ExtractMethodRefactoring_default_visibility;
    comment.addSetting(Messages.format(RefactoringCoreMessages.ExtractMethodRefactoring_visibility_pattern, visibility));
    if (fThrowRuntimeExceptions)
        comment.addSetting(RefactoringCoreMessages.ExtractMethodRefactoring_declare_thrown_exceptions);
    if (fReplaceDuplicates)
        comment.addSetting(RefactoringCoreMessages.ExtractMethodRefactoring_replace_occurrences);
    if (fGenerateJavadoc)
        comment.addSetting(RefactoringCoreMessages.ExtractMethodRefactoring_generate_comment);
    final ExtractMethodDescriptor descriptor = RefactoringSignatureDescriptorFactory.createExtractMethodDescriptor(project, description, comment.asString(), arguments, flags);
    arguments.put(JavaRefactoringDescriptorUtil.ATTRIBUTE_INPUT, JavaRefactoringDescriptorUtil.elementToHandle(project, fCUnit));
    arguments.put(JavaRefactoringDescriptorUtil.ATTRIBUTE_NAME, fMethodName);
    //$NON-NLS-1$
    arguments.put(JavaRefactoringDescriptorUtil.ATTRIBUTE_SELECTION, new Integer(fSelectionStart).toString() + " " + new Integer(fSelectionLength).toString());
    arguments.put(ATTRIBUTE_VISIBILITY, new Integer(fVisibility).toString());
    arguments.put(ATTRIBUTE_DESTINATION, new Integer(fDestinationIndex).toString());
    arguments.put(ATTRIBUTE_EXCEPTIONS, Boolean.valueOf(fThrowRuntimeExceptions).toString());
    arguments.put(ATTRIBUTE_COMMENTS, Boolean.valueOf(fGenerateJavadoc).toString());
    arguments.put(ATTRIBUTE_REPLACE, Boolean.valueOf(fReplaceDuplicates).toString());
    return descriptor;
}

Example 23 with MethodDeclaration

use of org.eclipse.jdt.core.dom.MethodDeclaration 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();
    }
}

Example 24 with MethodDeclaration

use of org.eclipse.jdt.core.dom.MethodDeclaration in project che by eclipse.

the class IntroduceIndirectionRefactoring method qualifyThisExpression.

/**
	 * Attempts to qualify a "this" expression for a method invocation with an appropriate qualifier.
	 * The invoked method is analyzed according to the following specs:
	 *
	 * 'this' must be qualified iff method is declared in an enclosing type or a supertype of an enclosing type
	 *
	 * 1) The method is declared somewhere outside of the cu of the invocation
	 *      1a) inside a supertype of the current type
	 *      1b) inside a supertype of an enclosing type
	 * 2) The method is declared inside of the cu of the invocation
	 * 		2a) inside the type of the invocation
	 * 		2b) outside the type of the invocation
	 *
	 * In case of 1a) and 2b), qualify with the enclosing type.
	 * @param expr a {@link ThisExpression}
	 * @param originalInvocation the original method invocation
	 * @param enclosing the enclosing member of the original method invocation
	 * @param unitRewriter the rewrite
	 * @return resulting status
	 *
	 */
private RefactoringStatus qualifyThisExpression(ThisExpression expr, MethodInvocation originalInvocation, IMember enclosing, CompilationUnitRewrite unitRewriter) {
    RefactoringStatus status = new RefactoringStatus();
    IMethodBinding methodBinding = originalInvocation.resolveMethodBinding();
    MethodDeclaration methodDeclaration = (MethodDeclaration) ASTNodes.findDeclaration(methodBinding, originalInvocation.getRoot());
    ITypeBinding currentTypeBinding = null;
    if (methodDeclaration != null) {
        // Case 1) : Declaring type is inside this cu => use its name if it's declared in an enclosing type
        if (ASTNodes.isParent(originalInvocation, methodDeclaration.getParent()))
            currentTypeBinding = methodBinding.getDeclaringClass();
        else
            currentTypeBinding = ASTNodes.getEnclosingType(originalInvocation);
    } else {
        // Case 2) : Declaring type is outside of this cu => find subclass in this cu
        ASTNode currentTypeDeclaration = getEnclosingTypeDeclaration(originalInvocation);
        currentTypeBinding = ASTNodes.getEnclosingType(currentTypeDeclaration);
        while (currentTypeDeclaration != null && (Bindings.findMethodInHierarchy(currentTypeBinding, methodBinding.getName(), methodBinding.getParameterTypes()) == null)) {
            currentTypeDeclaration = getEnclosingTypeDeclaration(currentTypeDeclaration.getParent());
            currentTypeBinding = ASTNodes.getEnclosingType(currentTypeDeclaration);
        }
    }
    if (currentTypeBinding == null) {
        status.merge(createWarningAboutCall(enclosing, originalInvocation, RefactoringCoreMessages.IntroduceIndirectionRefactoring_call_warning_declaring_type_not_found));
        return status;
    }
    currentTypeBinding = currentTypeBinding.getTypeDeclaration();
    ITypeBinding typeOfCall = ASTNodes.getEnclosingType(originalInvocation);
    if (!typeOfCall.equals(currentTypeBinding)) {
        if (currentTypeBinding.isAnonymous()) {
            // Cannot qualify, see bug 115277
            status.merge(createWarningAboutCall(enclosing, originalInvocation, RefactoringCoreMessages.IntroduceIndirectionRefactoring_call_warning_anonymous_cannot_qualify));
        } else {
            expr.setQualifier(unitRewriter.getAST().newSimpleName(currentTypeBinding.getName()));
        }
    } else {
    // do not qualify, only use "this.".
    }
    return status;
}

Example 25 with MethodDeclaration

use of org.eclipse.jdt.core.dom.MethodDeclaration in project che by eclipse.

the class IntroduceIndirectionRefactoring method createIntermediaryMethod.

private void createIntermediaryMethod() throws CoreException {
    CompilationUnitRewrite imRewrite = getCachedCURewrite(fIntermediaryType.getCompilationUnit());
    AST ast = imRewrite.getAST();
    MethodDeclaration intermediary = ast.newMethodDeclaration();
    // Intermediary class is non-anonymous
    AbstractTypeDeclaration type = (AbstractTypeDeclaration) typeToDeclaration(fIntermediaryType, imRewrite.getRoot());
    // Name
    intermediary.setName(ast.newSimpleName(fIntermediaryMethodName));
    // Flags
    List<IExtendedModifier> modifiers = intermediary.modifiers();
    if (!fIntermediaryType.isInterface()) {
        modifiers.add(imRewrite.getAST().newModifier(ModifierKeyword.PUBLIC_KEYWORD));
    }
    modifiers.add(imRewrite.getAST().newModifier(ModifierKeyword.STATIC_KEYWORD));
    // Parameters
    String targetParameterName = StubUtility.suggestArgumentName(getProject(), fIntermediaryFirstParameterType.getName(), fTargetMethod.getParameterNames());
    ImportRewriteContext context = new ContextSensitiveImportRewriteContext(type, imRewrite.getImportRewrite());
    if (!isStaticTarget()) {
        // Add first param
        SingleVariableDeclaration parameter = imRewrite.getAST().newSingleVariableDeclaration();
        Type t = imRewrite.getImportRewrite().addImport(fIntermediaryFirstParameterType, imRewrite.getAST(), context);
        if (fIntermediaryFirstParameterType.isGenericType()) {
            ParameterizedType parameterized = imRewrite.getAST().newParameterizedType(t);
            ITypeBinding[] typeParameters = fIntermediaryFirstParameterType.getTypeParameters();
            for (int i = 0; i < typeParameters.length; i++) parameterized.typeArguments().add(imRewrite.getImportRewrite().addImport(typeParameters[i], imRewrite.getAST()));
            t = parameterized;
        }
        parameter.setType(t);
        parameter.setName(imRewrite.getAST().newSimpleName(targetParameterName));
        intermediary.parameters().add(parameter);
    }
    // Add other params
    copyArguments(intermediary, imRewrite);
    // Add type parameters of declaring type (and enclosing types)
    if (!isStaticTarget() && fIntermediaryFirstParameterType.isGenericType())
        addTypeParameters(imRewrite, intermediary.typeParameters(), fIntermediaryFirstParameterType);
    // Add type params of method
    copyTypeParameters(intermediary, imRewrite);
    // Return type
    intermediary.setReturnType2(imRewrite.getImportRewrite().addImport(fTargetMethodBinding.getReturnType(), ast, context));
    // Exceptions
    copyExceptions(intermediary, imRewrite);
    // Body
    MethodInvocation invocation = imRewrite.getAST().newMethodInvocation();
    invocation.setName(imRewrite.getAST().newSimpleName(fTargetMethod.getElementName()));
    if (isStaticTarget()) {
        Type importedType = imRewrite.getImportRewrite().addImport(fTargetMethodBinding.getDeclaringClass(), ast, context);
        invocation.setExpression(ASTNodeFactory.newName(ast, ASTNodes.asString(importedType)));
    } else {
        invocation.setExpression(imRewrite.getAST().newSimpleName(targetParameterName));
    }
    copyInvocationParameters(invocation, ast);
    Statement call = encapsulateInvocation(intermediary, invocation);
    final Block body = imRewrite.getAST().newBlock();
    body.statements().add(call);
    intermediary.setBody(body);
    // method comment
    ICompilationUnit targetCU = imRewrite.getCu();
    if (StubUtility.doAddComments(targetCU.getJavaProject())) {
        String comment = CodeGeneration.getMethodComment(targetCU, getIntermediaryTypeName(), intermediary, null, StubUtility.getLineDelimiterUsed(targetCU));
        if (comment != null) {
            Javadoc javadoc = (Javadoc) imRewrite.getASTRewrite().createStringPlaceholder(comment, ASTNode.JAVADOC);
            intermediary.setJavadoc(javadoc);
        }
    }
    // Add the completed method to the intermediary type:
    ChildListPropertyDescriptor typeBodyDeclarationsProperty = typeToBodyDeclarationProperty(fIntermediaryType, imRewrite.getRoot());
    ListRewrite bodyDeclarationsListRewrite = imRewrite.getASTRewrite().getListRewrite(type, typeBodyDeclarationsProperty);
    bodyDeclarationsListRewrite.insertAt(intermediary, ASTNodes.getInsertionIndex(intermediary, type.bodyDeclarations()), imRewrite.createGroupDescription(RefactoringCoreMessages.IntroduceIndirectionRefactoring_group_description_create_new_method));
}