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

Example 46 with MethodDeclaration

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

the class CodeRefactoringUtil method checkMethodSyntaxErrors.

public static RefactoringStatus checkMethodSyntaxErrors(int selectionStart, int selectionLength, CompilationUnit cuNode, String invalidSelectionMessage) {
    SelectionAnalyzer analyzer = new SelectionAnalyzer(Selection.createFromStartLength(selectionStart, selectionLength), true);
    cuNode.accept(analyzer);
    ASTNode coveringNode = analyzer.getLastCoveringNode();
    if (!(coveringNode instanceof Block) || !(coveringNode.getParent() instanceof MethodDeclaration))
        return RefactoringStatus.createFatalErrorStatus(invalidSelectionMessage);
    if (ASTNodes.getMessages(coveringNode, ASTNodes.NODE_ONLY).length == 0)
        return RefactoringStatus.createFatalErrorStatus(invalidSelectionMessage);
    MethodDeclaration methodDecl = (MethodDeclaration) coveringNode.getParent();
    String message = Messages.format(RefactoringCoreMessages.CodeRefactoringUtil_error_message, BasicElementLabels.getJavaElementName(methodDecl.getName().getIdentifier()));
    return RefactoringStatus.createFatalErrorStatus(message);
}

Example 47 with MethodDeclaration

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

the class ConvertAnonymousToNestedRefactoring method getTypeParameters.

private ITypeBinding[] getTypeParameters() {
    final List<ITypeBinding> parameters = new ArrayList<ITypeBinding>(4);
    final ClassInstanceCreation creation = (ClassInstanceCreation) fAnonymousInnerClassNode.getParent();
    if (fDeclareStatic) {
        final TypeVariableFinder finder = new TypeVariableFinder();
        creation.accept(finder);
        return finder.getResult();
    } else {
        final MethodDeclaration declaration = getEnclosingMethodDeclaration(creation);
        if (declaration != null) {
            ITypeBinding binding = null;
            TypeParameter parameter = null;
            for (final Iterator<TypeParameter> iterator = declaration.typeParameters().iterator(); iterator.hasNext(); ) {
                parameter = iterator.next();
                binding = parameter.resolveBinding();
                if (binding != null)
                    parameters.add(binding);
            }
        }
    }
    final TypeVariableFinder finder = new TypeVariableFinder();
    creation.accept(finder);
    final ITypeBinding[] variables = finder.getResult();
    final List<ITypeBinding> remove = new ArrayList<ITypeBinding>(4);
    boolean match = false;
    ITypeBinding binding = null;
    ITypeBinding variable = null;
    for (final Iterator<ITypeBinding> iterator = parameters.iterator(); iterator.hasNext(); ) {
        match = false;
        binding = iterator.next();
        for (int index = 0; index < variables.length; index++) {
            variable = variables[index];
            if (variable.equals(binding))
                match = true;
        }
        if (!match)
            remove.add(binding);
    }
    parameters.removeAll(remove);
    final ITypeBinding[] result = new ITypeBinding[parameters.size()];
    parameters.toArray(result);
    return result;
}

Example 48 with MethodDeclaration

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

the class SurroundWithAnalyzer method endVisit.

@Override
public void endVisit(CompilationUnit node) {
    postProcessSelectedNodes(internalGetSelectedNodes());
    BodyDeclaration enclosingNode = null;
    superCall: {
        if (getStatus().hasFatalError())
            break superCall;
        if (!hasSelectedNodes()) {
            ASTNode coveringNode = getLastCoveringNode();
            if (coveringNode instanceof Block) {
                Block block = (Block) coveringNode;
                Message[] messages = ASTNodes.getMessages(block, ASTNodes.NODE_ONLY);
                if (messages.length > 0) {
                    invalidSelection(RefactoringCoreMessages.SurroundWithTryCatchAnalyzer_compile_errors, JavaStatusContext.create(getCompilationUnit(), block));
                    break superCall;
                }
            }
            invalidSelection(RefactoringCoreMessages.SurroundWithTryCatchAnalyzer_doesNotCover);
            break superCall;
        }
        enclosingNode = (BodyDeclaration) ASTNodes.getParent(getFirstSelectedNode(), BodyDeclaration.class);
        if (!(enclosingNode instanceof MethodDeclaration) && !(enclosingNode instanceof Initializer)) {
            invalidSelection(RefactoringCoreMessages.SurroundWithTryCatchAnalyzer_doesNotContain);
            break superCall;
        }
        if (!onlyStatements()) {
            invalidSelection(RefactoringCoreMessages.SurroundWithTryCatchAnalyzer_onlyStatements);
        }
        fLocals = LocalDeclarationAnalyzer.perform(enclosingNode, getSelection());
    }
    super.endVisit(node);
}

Example 49 with MethodDeclaration

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

the class IntroduceFactoryRefactoring method getTargetNode.

/**
	 * Finds and returns the <code>ASTNode</code> for the given source text
	 * selection, if it is an entire constructor call or the class name portion
	 * of a constructor call or constructor declaration, or null otherwise.
	 * @param unit The compilation unit in which the selection was made
	 * @param offset The textual offset of the start of the selection
	 * @param length The length of the selection in characters
	 * @return ClassInstanceCreation or MethodDeclaration
	 */
private ASTNode getTargetNode(ICompilationUnit unit, int offset, int length) {
    ASTNode node = ASTNodes.getNormalizedNode(NodeFinder.perform(fCU, offset, length));
    if (node.getNodeType() == ASTNode.CLASS_INSTANCE_CREATION)
        return node;
    if (node.getNodeType() == ASTNode.METHOD_DECLARATION && ((MethodDeclaration) node).isConstructor())
        return node;
    // we have some sub node. Make sure its the right child of the parent
    StructuralPropertyDescriptor location = node.getLocationInParent();
    ASTNode parent = node.getParent();
    if (location == ClassInstanceCreation.TYPE_PROPERTY) {
        return parent;
    } else if (location == MethodDeclaration.NAME_PROPERTY && ((MethodDeclaration) parent).isConstructor()) {
        return parent;
    }
    return null;
}

Example 50 with MethodDeclaration

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

the class IntroduceFactoryRefactoring method getCtorCallAt.

/**
	 * Look "in the vicinity" of the given range to find the <code>ClassInstanceCreation</code>
	 * node that this search hit identified. Necessary because the <code>SearchEngine</code>
	 * doesn't always cough up text extents that <code>NodeFinder.perform()</code> agrees with.
	 * @param start
	 * @param length
	 * @param unitAST
	 * @return return a {@link ClassInstanceCreation} or a {@link MethodRef} or <code>null</code> if this is really a constructor->constructor call (e.g. "this(...)")
	 * @throws CoreException
	 */
private ASTNode getCtorCallAt(int start, int length, CompilationUnit unitAST) throws CoreException {
    ICompilationUnit unitHandle = ASTCreator.getCu(unitAST);
    ASTNode node = NodeFinder.perform(unitAST, start, length);
    if (node == null)
        throw new CoreException(JavaUIStatus.createError(IStatus.ERROR, Messages.format(RefactoringCoreMessages.IntroduceFactory_noASTNodeForConstructorSearchHit, new Object[] { Integer.toString(start), Integer.toString(start + length), BasicElementLabels.getJavaCodeString(unitHandle.getSource().substring(start, start + length)), BasicElementLabels.getFileName(unitHandle) }), null));
    if (node instanceof ClassInstanceCreation) {
        if (((ClassInstanceCreation) node).getAnonymousClassDeclaration() != null) {
            // Cannot replace anonymous inner class, see https://bugs.eclipse.org/bugs/show_bug.cgi?id=250660
            fConstructorVisibility = Modifier.PROTECTED;
            return null;
        }
        return node;
    } else if (node instanceof VariableDeclaration) {
        Expression init = ((VariableDeclaration) node).getInitializer();
        if (init instanceof ClassInstanceCreation) {
            return init;
        } else if (init != null)
            throw new CoreException(JavaUIStatus.createError(IStatus.ERROR, Messages.format(RefactoringCoreMessages.IntroduceFactory_unexpectedInitializerNodeType, new Object[] { BasicElementLabels.getJavaCodeString(init.toString()), BasicElementLabels.getFileName(unitHandle) }), null));
        else
            throw new CoreException(JavaUIStatus.createError(IStatus.ERROR, Messages.format(RefactoringCoreMessages.IntroduceFactory_noConstructorCallNodeInsideFoundVarbleDecl, BasicElementLabels.getJavaCodeString(node.toString())), null));
    } else if (node instanceof ConstructorInvocation) {
        // to another flavor on the same class.
        return null;
    } else if (node instanceof SuperConstructorInvocation) {
        // This is a call we can bypass; it's from one constructor flavor
        // to another flavor on the same class.
        fConstructorVisibility = Modifier.PROTECTED;
        return null;
    } else if (node instanceof ExpressionStatement) {
        Expression expr = ((ExpressionStatement) node).getExpression();
        if (expr instanceof ClassInstanceCreation)
            return expr;
        else
            throw new CoreException(JavaUIStatus.createError(IStatus.ERROR, Messages.format(RefactoringCoreMessages.IntroduceFactory_unexpectedASTNodeTypeForConstructorSearchHit, new Object[] { BasicElementLabels.getJavaCodeString(expr.toString()), BasicElementLabels.getFileName(unitHandle) }), null));
    } else if (node instanceof SimpleName && (node.getParent() instanceof MethodDeclaration || node.getParent() instanceof AbstractTypeDeclaration)) {
        // We seem to have been given a hit for an implicit call to the base-class constructor.
        // Do nothing with this (implicit) call, but have to make sure we make the derived class
        // doesn't lose access to the base-class constructor (so make it 'protected', not 'private').
        fConstructorVisibility = Modifier.PROTECTED;
        return null;
    } else if (node instanceof MethodRef) {
        return node;
    } else
        throw new CoreException(JavaUIStatus.createError(IStatus.ERROR, Messages.format(RefactoringCoreMessages.IntroduceFactory_unexpectedASTNodeTypeForConstructorSearchHit, new Object[] { BasicElementLabels.getJavaElementName(node.getClass().getName() + "('" + node.toString() + "')"), BasicElementLabels.getFileName(unitHandle) }), //$NON-NLS-1$ //$NON-NLS-2$
        null));
}