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

Example 56 with IVariableBinding

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

the class ExtractMethodAnalyzer method endVisit.

@Override
public void endVisit(CompilationUnit node) {
    RefactoringStatus status = getStatus();
    superCall: {
        if (status.hasFatalError())
            break superCall;
        if (!hasSelectedNodes()) {
            ASTNode coveringNode = getLastCoveringNode();
            if (coveringNode instanceof Block && coveringNode.getParent() instanceof MethodDeclaration) {
                MethodDeclaration methodDecl = (MethodDeclaration) coveringNode.getParent();
                Message[] messages = ASTNodes.getMessages(methodDecl, ASTNodes.NODE_ONLY);
                if (messages.length > 0) {
                    status.addFatalError(Messages.format(RefactoringCoreMessages.ExtractMethodAnalyzer_compile_errors, BasicElementLabels.getJavaElementName(methodDecl.getName().getIdentifier())), JavaStatusContext.create(fCUnit, methodDecl));
                    break superCall;
                }
            }
            status.addFatalError(RefactoringCoreMessages.ExtractMethodAnalyzer_invalid_selection);
            break superCall;
        }
        fEnclosingBodyDeclaration = (BodyDeclaration) ASTNodes.getParent(getFirstSelectedNode(), BodyDeclaration.class);
        if (fEnclosingBodyDeclaration == null || (fEnclosingBodyDeclaration.getNodeType() != ASTNode.METHOD_DECLARATION && fEnclosingBodyDeclaration.getNodeType() != ASTNode.FIELD_DECLARATION && fEnclosingBodyDeclaration.getNodeType() != ASTNode.INITIALIZER)) {
            status.addFatalError(RefactoringCoreMessages.ExtractMethodAnalyzer_invalid_selection);
            break superCall;
        } else if (ASTNodes.getEnclosingType(fEnclosingBodyDeclaration) == null) {
            status.addFatalError(RefactoringCoreMessages.ExtractMethodAnalyzer_compile_errors_no_parent_binding);
            break superCall;
        } else if (fEnclosingBodyDeclaration.getNodeType() == ASTNode.METHOD_DECLARATION) {
            fEnclosingMethodBinding = ((MethodDeclaration) fEnclosingBodyDeclaration).resolveBinding();
        }
        if (!isSingleExpressionOrStatementSet()) {
            status.addFatalError(RefactoringCoreMessages.ExtractMethodAnalyzer_single_expression_or_set);
            break superCall;
        }
        if (isExpressionSelected()) {
            ASTNode expression = getFirstSelectedNode();
            if (expression instanceof Name) {
                Name name = (Name) expression;
                if (name.resolveBinding() instanceof ITypeBinding) {
                    status.addFatalError(RefactoringCoreMessages.ExtractMethodAnalyzer_cannot_extract_type_reference);
                    break superCall;
                }
                if (name.resolveBinding() instanceof IMethodBinding) {
                    status.addFatalError(RefactoringCoreMessages.ExtractMethodAnalyzer_cannot_extract_method_name_reference);
                    break superCall;
                }
                if (name.resolveBinding() instanceof IVariableBinding) {
                    StructuralPropertyDescriptor locationInParent = name.getLocationInParent();
                    if (locationInParent == QualifiedName.NAME_PROPERTY || (locationInParent == FieldAccess.NAME_PROPERTY && !(((FieldAccess) name.getParent()).getExpression() instanceof ThisExpression))) {
                        status.addFatalError(RefactoringCoreMessages.ExtractMethodAnalyzer_cannot_extract_part_of_qualified_name);
                        break superCall;
                    }
                }
                if (name.isSimpleName() && ((SimpleName) name).isDeclaration()) {
                    status.addFatalError(RefactoringCoreMessages.ExtractMethodAnalyzer_cannot_extract_name_in_declaration);
                    break superCall;
                }
            }
            fForceStatic = ASTNodes.getParent(expression, ASTNode.SUPER_CONSTRUCTOR_INVOCATION) != null || ASTNodes.getParent(expression, ASTNode.CONSTRUCTOR_INVOCATION) != null;
        }
        status.merge(LocalTypeAnalyzer.perform(fEnclosingBodyDeclaration, getSelection()));
        computeLastStatementSelected();
    }
    super.endVisit(node);
}

Example 57 with IVariableBinding

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

the class ExtractMethodRefactoring method createMethodBody.

private Block createMethodBody(ASTNode[] selectedNodes, TextEditGroup substitute, int modifiers) {
    Block result = fAST.newBlock();
    ListRewrite statements = fRewriter.getListRewrite(result, Block.STATEMENTS_PROPERTY);
    // Locals that are not passed as an arguments since the extracted method only
    // writes to them
    IVariableBinding[] methodLocals = fAnalyzer.getMethodLocals();
    for (int i = 0; i < methodLocals.length; i++) {
        if (methodLocals[i] != null) {
            result.statements().add(createDeclaration(methodLocals[i], null));
        }
    }
    for (Iterator<ParameterInfo> iter = fParameterInfos.iterator(); iter.hasNext(); ) {
        ParameterInfo parameter = iter.next();
        if (parameter.isRenamed()) {
            for (int n = 0; n < selectedNodes.length; n++) {
                SimpleName[] oldNames = LinkedNodeFinder.findByBinding(selectedNodes[n], parameter.getOldBinding());
                for (int i = 0; i < oldNames.length; i++) {
                    fRewriter.replace(oldNames[i], fAST.newSimpleName(parameter.getNewName()), null);
                }
            }
        }
    }
    boolean extractsExpression = fAnalyzer.isExpressionSelected();
    ASTNode[] callNodes = createCallNodes(null, modifiers);
    ASTNode replacementNode;
    if (callNodes.length == 1) {
        replacementNode = callNodes[0];
    } else {
        replacementNode = fRewriter.createGroupNode(callNodes);
    }
    if (extractsExpression) {
        // if we have an expression then only one node is selected.
        ITypeBinding binding = fAnalyzer.getExpressionBinding();
        if (binding != null && (!binding.isPrimitive() || !"void".equals(binding.getName()))) {
            //$NON-NLS-1$
            ReturnStatement rs = fAST.newReturnStatement();
            rs.setExpression((Expression) fRewriter.createMoveTarget(selectedNodes[0] instanceof ParenthesizedExpression ? ((ParenthesizedExpression) selectedNodes[0]).getExpression() : selectedNodes[0]));
            statements.insertLast(rs, null);
        } else {
            ExpressionStatement st = fAST.newExpressionStatement((Expression) fRewriter.createMoveTarget(selectedNodes[0]));
            statements.insertLast(st, null);
        }
        fRewriter.replace(selectedNodes[0].getParent() instanceof ParenthesizedExpression ? selectedNodes[0].getParent() : selectedNodes[0], replacementNode, substitute);
    } else {
        if (selectedNodes.length == 1) {
            statements.insertLast(fRewriter.createMoveTarget(selectedNodes[0]), substitute);
            fRewriter.replace(selectedNodes[0], replacementNode, substitute);
        } else {
            ListRewrite source = fRewriter.getListRewrite(selectedNodes[0].getParent(), (ChildListPropertyDescriptor) selectedNodes[0].getLocationInParent());
            ASTNode toMove = source.createMoveTarget(selectedNodes[0], selectedNodes[selectedNodes.length - 1], replacementNode, substitute);
            statements.insertLast(toMove, substitute);
        }
        IVariableBinding returnValue = fAnalyzer.getReturnValue();
        if (returnValue != null) {
            ReturnStatement rs = fAST.newReturnStatement();
            rs.setExpression(fAST.newSimpleName(getName(returnValue)));
            statements.insertLast(rs, null);
        }
    }
    return result;
}

Example 58 with IVariableBinding

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

the class ExtractMethodRefactoring method computeLocalTypeVariables.

private ITypeBinding[] computeLocalTypeVariables(int modifier) {
    List<ITypeBinding> result = new ArrayList<ITypeBinding>(Arrays.asList(fAnalyzer.getTypeVariables()));
    for (int i = 0; i < fParameterInfos.size(); i++) {
        ParameterInfo info = fParameterInfos.get(i);
        processVariable(result, info.getOldBinding(), modifier);
    }
    IVariableBinding[] methodLocals = fAnalyzer.getMethodLocals();
    for (int i = 0; i < methodLocals.length; i++) {
        processVariable(result, methodLocals[i], modifier);
    }
    return result.toArray(new ITypeBinding[result.size()]);
}

Example 59 with IVariableBinding

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

the class ExtractMethodRefactoring method initializeParameterInfos.

//---- Helper methods ------------------------------------------------------------------------
private void initializeParameterInfos() {
    IVariableBinding[] arguments = fAnalyzer.getArguments();
    fParameterInfos = new ArrayList<ParameterInfo>(arguments.length);
    ASTNode root = fAnalyzer.getEnclosingBodyDeclaration();
    ParameterInfo vararg = null;
    for (int i = 0; i < arguments.length; i++) {
        IVariableBinding argument = arguments[i];
        if (argument == null)
            continue;
        VariableDeclaration declaration = ASTNodes.findVariableDeclaration(argument, root);
        boolean isVarargs = declaration instanceof SingleVariableDeclaration ? ((SingleVariableDeclaration) declaration).isVarargs() : false;
        ParameterInfo info = new ParameterInfo(argument, getType(declaration, isVarargs), argument.getName(), i);
        if (isVarargs) {
            vararg = info;
        } else {
            fParameterInfos.add(info);
        }
    }
    if (vararg != null) {
        fParameterInfos.add(vararg);
    }
}

Example 60 with IVariableBinding

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

the class ExtractMethodAnalyzer method removeSelectedDeclarations.

private IVariableBinding[] removeSelectedDeclarations(IVariableBinding[] bindings) {
    List<IVariableBinding> result = new ArrayList<IVariableBinding>(bindings.length);
    Selection selection = getSelection();
    for (int i = 0; i < bindings.length; i++) {
        ASTNode decl = ((CompilationUnit) fEnclosingBodyDeclaration.getRoot()).findDeclaringNode(bindings[i]);
        if (!selection.covers(decl))
            result.add(bindings[i]);
    }
    return result.toArray(new IVariableBinding[result.size()]);
}