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

Example 16 with Statement

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

the class ScopeAnalyzer method getDeclarationsAfter.

public IBinding[] getDeclarationsAfter(int offset, int flags) {
    try {
        org.eclipse.jdt.core.dom.NodeFinder finder = new org.eclipse.jdt.core.dom.NodeFinder(fRoot, offset, 0);
        ASTNode node = finder.getCoveringNode();
        if (node == null) {
            return null;
        }
        ASTNode declaration = ASTResolving.findParentStatement(node);
        while (declaration instanceof Statement && declaration.getNodeType() != ASTNode.BLOCK) {
            declaration = declaration.getParent();
        }
        if (declaration instanceof Block) {
            DefaultBindingRequestor requestor = new DefaultBindingRequestor();
            DeclarationsAfterVisitor visitor = new DeclarationsAfterVisitor(node.getStartPosition(), flags, requestor);
            declaration.accept(visitor);
            List<IBinding> result = requestor.getResult();
            return result.toArray(new IBinding[result.size()]);
        }
        return NO_BINDING;
    } finally {
        clearLists();
    }
}

Example 17 with Statement

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

the class ConvertAnonymousToNestedRefactoring method updateAndMoveBodyDeclarations.

private void updateAndMoveBodyDeclarations(CompilationUnitRewrite rewriter, IVariableBinding[] bindings, String[] fieldNames, List<BodyDeclaration> newBodyDeclarations, MethodDeclaration newConstructorDecl) {
    final ASTRewrite astRewrite = rewriter.getASTRewrite();
    final AST ast = astRewrite.getAST();
    final boolean useThisAccess = useThisForFieldAccess();
    int fieldInsertIndex = newConstructorDecl != null ? newBodyDeclarations.lastIndexOf(newConstructorDecl) : newBodyDeclarations.size();
    for (Iterator<BodyDeclaration> iterator = fAnonymousInnerClassNode.bodyDeclarations().iterator(); iterator.hasNext(); ) {
        BodyDeclaration body = iterator.next();
        for (int i = 0; i < bindings.length; i++) {
            SimpleName[] names = LinkedNodeFinder.findByBinding(body, bindings[i]);
            String fieldName = fieldNames[i];
            for (int k = 0; k < names.length; k++) {
                SimpleName newNode = ast.newSimpleName(fieldName);
                if (useThisAccess) {
                    FieldAccess access = ast.newFieldAccess();
                    access.setExpression(ast.newThisExpression());
                    access.setName(newNode);
                    astRewrite.replace(names[k], access, null);
                } else {
                    astRewrite.replace(names[k], newNode, null);
                }
                addLinkedPosition(KEY_FIELD_NAME_EXT + i, newNode, astRewrite, false);
            }
        }
        if (body instanceof Initializer || body instanceof FieldDeclaration) {
            newBodyDeclarations.add(fieldInsertIndex++, (BodyDeclaration) astRewrite.createMoveTarget(body));
        } else {
            newBodyDeclarations.add((BodyDeclaration) astRewrite.createMoveTarget(body));
        }
    }
    if (newConstructorDecl != null) {
        // move initialization of existing fields to constructor if an outer is referenced
        List<Statement> bodyStatements = newConstructorDecl.getBody().statements();
        List<VariableDeclarationFragment> fieldsToInitializeInConstructor = getFieldsToInitializeInConstructor();
        for (Iterator<VariableDeclarationFragment> iter = fieldsToInitializeInConstructor.iterator(); iter.hasNext(); ) {
            VariableDeclarationFragment fragment = iter.next();
            Expression initializer = fragment.getInitializer();
            Expression replacement = (Expression) astRewrite.get(fragment, VariableDeclarationFragment.INITIALIZER_PROPERTY);
            if (replacement == initializer) {
                replacement = (Expression) astRewrite.createMoveTarget(initializer);
            }
            astRewrite.remove(initializer, null);
            SimpleName fieldNameNode = ast.newSimpleName(fragment.getName().getIdentifier());
            bodyStatements.add(newFieldAssignment(ast, fieldNameNode, replacement, useThisAccess));
        }
    }
}

Example 18 with Statement

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

the class ConvertAnonymousToNestedRefactoring method createNewConstructor.

private MethodDeclaration createNewConstructor(CompilationUnitRewrite rewrite, IVariableBinding[] bindings, String[] fieldNames) throws JavaModelException {
    ClassInstanceCreation instanceCreation = (ClassInstanceCreation) fAnonymousInnerClassNode.getParent();
    if (instanceCreation.arguments().isEmpty() && bindings.length == 0)
        return null;
    IJavaProject project = fCu.getJavaProject();
    AST ast = rewrite.getAST();
    ImportRewrite importRewrite = rewrite.getImportRewrite();
    ASTRewrite astRewrite = rewrite.getASTRewrite();
    MethodDeclaration newConstructor = ast.newMethodDeclaration();
    newConstructor.setConstructor(true);
    newConstructor.setJavadoc(null);
    newConstructor.modifiers().addAll(ASTNodeFactory.newModifiers(ast, fVisibility));
    newConstructor.setName(ast.newSimpleName(fClassName));
    addLinkedPosition(KEY_TYPE_NAME, newConstructor.getName(), astRewrite, false);
    newConstructor.setBody(ast.newBlock());
    List<Statement> newStatements = newConstructor.getBody().statements();
    List<SingleVariableDeclaration> newParameters = newConstructor.parameters();
    List<String> newParameterNames = new ArrayList<String>();
    // add parameters for elements passed with the instance creation
    if (!instanceCreation.arguments().isEmpty()) {
        IMethodBinding constructorBinding = getSuperConstructorBinding();
        if (constructorBinding != null) {
            SuperConstructorInvocation superConstructorInvocation = ast.newSuperConstructorInvocation();
            ITypeBinding[] parameterTypes = constructorBinding.getParameterTypes();
            String[][] parameterNames = StubUtility.suggestArgumentNamesWithProposals(project, constructorBinding);
            for (int i = 0; i < parameterNames.length; i++) {
                String[] nameProposals = parameterNames[i];
                String paramName = nameProposals[0];
                SingleVariableDeclaration param = newParameterDeclaration(ast, importRewrite, paramName, parameterTypes[i]);
                newParameters.add(param);
                newParameterNames.add(paramName);
                SimpleName newSIArgument = ast.newSimpleName(paramName);
                superConstructorInvocation.arguments().add(newSIArgument);
                if (fLinkedProposalModel != null) {
                    LinkedProposalPositionGroup positionGroup = fLinkedProposalModel.getPositionGroup(KEY_PARAM_NAME_CONST + String.valueOf(i), true);
                    positionGroup.addPosition(astRewrite.track(param.getName()), false);
                    positionGroup.addPosition(astRewrite.track(newSIArgument), false);
                    for (int k = 0; k < nameProposals.length; k++) {
                        positionGroup.addProposal(nameProposals[k], null, nameProposals.length - k);
                    }
                }
            }
            newStatements.add(superConstructorInvocation);
        }
    }
    // add parameters for all outer variables used
    boolean useThisAccess = useThisForFieldAccess();
    for (int i = 0; i < bindings.length; i++) {
        String baseName = StubUtility.getBaseName(bindings[i], project);
        String[] paramNameProposals = StubUtility.getVariableNameSuggestions(NamingConventions.VK_PARAMETER, project, baseName, 0, newParameterNames, true);
        String paramName = paramNameProposals[0];
        SingleVariableDeclaration param = newParameterDeclaration(ast, importRewrite, paramName, bindings[i].getType());
        newParameters.add(param);
        newParameterNames.add(paramName);
        String fieldName = fieldNames[i];
        SimpleName fieldNameNode = ast.newSimpleName(fieldName);
        SimpleName paramNameNode = ast.newSimpleName(paramName);
        newStatements.add(newFieldAssignment(ast, fieldNameNode, paramNameNode, useThisAccess || newParameterNames.contains(fieldName)));
        if (fLinkedProposalModel != null) {
            LinkedProposalPositionGroup positionGroup = fLinkedProposalModel.getPositionGroup(KEY_PARAM_NAME_EXT + String.valueOf(i), true);
            positionGroup.addPosition(astRewrite.track(param.getName()), false);
            positionGroup.addPosition(astRewrite.track(paramNameNode), false);
            for (int k = 0; k < paramNameProposals.length; k++) {
                positionGroup.addProposal(paramNameProposals[k], null, paramNameProposals.length - k);
            }
            fLinkedProposalModel.getPositionGroup(KEY_FIELD_NAME_EXT + i, true).addPosition(astRewrite.track(fieldNameNode), false);
        }
    }
    addExceptionsToNewConstructor(newConstructor, importRewrite);
    if (doAddComments()) {
        try {
            String[] allParamNames = newParameterNames.toArray(new String[newParameterNames.size()]);
            String string = CodeGeneration.getMethodComment(fCu, fClassName, fClassName, allParamNames, new String[0], null, new String[0], null, StubUtility.getLineDelimiterUsed(fCu));
            if (string != null) {
                Javadoc javadoc = (Javadoc) astRewrite.createStringPlaceholder(string, ASTNode.JAVADOC);
                newConstructor.setJavadoc(javadoc);
            }
        } catch (CoreException exception) {
            throw new JavaModelException(exception);
        }
    }
    return newConstructor;
}

Example 19 with Statement

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

the class CallInliner method initializeInsertionPoint.

private void initializeInsertionPoint(int nos) {
    fInsertionIndex = -1;
    fNeedsStatement = false;
    // if we have a constructor invocation the invocation itself is already a statement
    ASTNode parentStatement = fInvocation instanceof Statement ? fInvocation : ASTNodes.getParent(fInvocation, Statement.class);
    if (parentStatement == null)
        return;
    ASTNode container = parentStatement.getParent();
    int type = container.getNodeType();
    if (type == ASTNode.BLOCK) {
        Block block = (Block) container;
        fListRewrite = fRewrite.getListRewrite(block, Block.STATEMENTS_PROPERTY);
        fInsertionIndex = fListRewrite.getRewrittenList().indexOf(parentStatement);
    } else if (type == ASTNode.SWITCH_STATEMENT) {
        SwitchStatement switchStatement = (SwitchStatement) container;
        fListRewrite = fRewrite.getListRewrite(switchStatement, SwitchStatement.STATEMENTS_PROPERTY);
        fInsertionIndex = fListRewrite.getRewrittenList().indexOf(parentStatement);
    } else if (isControlStatement(container) || type == ASTNode.LABELED_STATEMENT) {
        fNeedsStatement = true;
        if (nos > 1 || needsBlockAroundDanglingIf()) {
            Block block = fInvocation.getAST().newBlock();
            fInsertionIndex = 0;
            Statement currentStatement = null;
            switch(type) {
                case ASTNode.LABELED_STATEMENT:
                    currentStatement = ((LabeledStatement) container).getBody();
                    break;
                case ASTNode.FOR_STATEMENT:
                    currentStatement = ((ForStatement) container).getBody();
                    break;
                case ASTNode.ENHANCED_FOR_STATEMENT:
                    currentStatement = ((EnhancedForStatement) container).getBody();
                    break;
                case ASTNode.WHILE_STATEMENT:
                    currentStatement = ((WhileStatement) container).getBody();
                    break;
                case ASTNode.DO_STATEMENT:
                    currentStatement = ((DoStatement) container).getBody();
                    break;
                case ASTNode.IF_STATEMENT:
                    IfStatement node = (IfStatement) container;
                    Statement thenPart = node.getThenStatement();
                    if (fTargetNode == thenPart || ASTNodes.isParent(fTargetNode, thenPart)) {
                        currentStatement = thenPart;
                    } else {
                        currentStatement = node.getElseStatement();
                    }
                    break;
            }
            Assert.isNotNull(currentStatement);
            fRewrite.replace(currentStatement, block, null);
            fListRewrite = fRewrite.getListRewrite(block, Block.STATEMENTS_PROPERTY);
            // The method to be inlined is not the body of the control statement.
            if (currentStatement != fTargetNode) {
                fListRewrite.insertLast(fRewrite.createCopyTarget(currentStatement), null);
            } else {
                // We can't replace a copy with something else. So we
                // have to insert all statements to be inlined.
                fTargetNode = null;
            }
        }
    }
// We only insert one new statement or we delete the existing call.
// So there is no need to have an insertion index.
}

Example 20 with Statement

use of org.eclipse.jdt.core.dom.Statement in project flux by eclipse.

the class CodeFormatterUtil method format2.

/**
	 * Creates edits that describe how to format the given string.
	 * The given node is used to infer the kind to use to format the string.
	 * Consider to use {@link #format2(int, String, int, String, Map)} if the kind is already known.
	 * Returns <code>null</code> if the code could not be formatted for the given kind.
	 *
	 * @param node
	 *        Use to infer the kind of the code snippet to format.
	 * @param source
	 *        The source to format
	 * @param indentationLevel
	 *        The initial indentation level, used to shift left/right the entire source fragment.
	 *        An initial indentation level of zero or below has no effect.
	 * @param lineSeparator
	 *        The line separator to use in formatted source,
	 *        if set to <code>null</code>, then the platform default one will be used.
	 * @param options
	 *        The options map to use for formatting with the default code formatter.
	 *        Recognized options are documented on {@link JavaCore#getDefaultOptions()}.
	 *        If set to <code>null</code>, then use the current settings from {@link JavaCore#getOptions()}.
	 * @return an TextEdit describing the changes required to format source
	 * @throws IllegalArgumentException
	 *         If the offset and length are not inside the string, a IllegalArgumentException is thrown.
	 */
public static TextEdit format2(ASTNode node, String source, int indentationLevel, String lineSeparator, Map<String, String> options) {
    int code;
    //$NON-NLS-1$
    String prefix = "";
    //$NON-NLS-1$
    String suffix = "";
    if (node instanceof Statement) {
        code = CodeFormatter.K_STATEMENTS;
        if (node.getNodeType() == ASTNode.SWITCH_CASE) {
            //$NON-NLS-1$
            prefix = "switch(1) {";
            //$NON-NLS-1$
            suffix = "}";
            code = CodeFormatter.K_STATEMENTS;
        }
    } else if (node instanceof Expression && node.getNodeType() != ASTNode.VARIABLE_DECLARATION_EXPRESSION) {
        code = CodeFormatter.K_EXPRESSION;
    } else if (node instanceof BodyDeclaration) {
        code = CodeFormatter.K_CLASS_BODY_DECLARATIONS;
    } else {
        switch(node.getNodeType()) {
            case ASTNode.ARRAY_TYPE:
            case ASTNode.PARAMETERIZED_TYPE:
            case ASTNode.PRIMITIVE_TYPE:
            case ASTNode.QUALIFIED_TYPE:
            case ASTNode.SIMPLE_TYPE:
                //$NON-NLS-1$
                suffix = " x;";
                code = CodeFormatter.K_CLASS_BODY_DECLARATIONS;
                break;
            case ASTNode.WILDCARD_TYPE:
                //$NON-NLS-1$
                prefix = "A<";
                //$NON-NLS-1$
                suffix = "> x;";
                code = CodeFormatter.K_CLASS_BODY_DECLARATIONS;
                break;
            case ASTNode.COMPILATION_UNIT:
                code = CodeFormatter.K_COMPILATION_UNIT;
                break;
            case ASTNode.VARIABLE_DECLARATION_EXPRESSION:
            case ASTNode.SINGLE_VARIABLE_DECLARATION:
                //$NON-NLS-1$
                suffix = ";";
                code = CodeFormatter.K_STATEMENTS;
                break;
            case ASTNode.VARIABLE_DECLARATION_FRAGMENT:
                //$NON-NLS-1$
                prefix = "A ";
                //$NON-NLS-1$
                suffix = ";";
                code = CodeFormatter.K_STATEMENTS;
                break;
            case ASTNode.PACKAGE_DECLARATION:
            case ASTNode.IMPORT_DECLARATION:
                //$NON-NLS-1$
                suffix = "\nclass A {}";
                code = CodeFormatter.K_COMPILATION_UNIT;
                break;
            case ASTNode.JAVADOC:
                //$NON-NLS-1$
                suffix = "void foo();";
                code = CodeFormatter.K_CLASS_BODY_DECLARATIONS;
                break;
            case ASTNode.CATCH_CLAUSE:
                //$NON-NLS-1$
                prefix = "try {}";
                code = CodeFormatter.K_STATEMENTS;
                break;
            case ASTNode.ANONYMOUS_CLASS_DECLARATION:
                //$NON-NLS-1$
                prefix = "new A()";
                //$NON-NLS-1$
                suffix = ";";
                code = CodeFormatter.K_STATEMENTS;
                break;
            case ASTNode.MEMBER_VALUE_PAIR:
                //$NON-NLS-1$
                prefix = "@Author(";
                //$NON-NLS-1$
                suffix = ") class x {}";
                code = CodeFormatter.K_COMPILATION_UNIT;
                break;
            case ASTNode.MODIFIER:
                //$NON-NLS-1$
                suffix = " class x {}";
                code = CodeFormatter.K_COMPILATION_UNIT;
                break;
            case ASTNode.TYPE_PARAMETER:
                //$NON-NLS-1$
                prefix = "class X<";
                //$NON-NLS-1$
                suffix = "> {}";
                code = CodeFormatter.K_COMPILATION_UNIT;
                break;
            case ASTNode.MEMBER_REF:
            case ASTNode.METHOD_REF:
            case ASTNode.METHOD_REF_PARAMETER:
            case ASTNode.TAG_ELEMENT:
            case ASTNode.TEXT_ELEMENT:
                // Javadoc formatting not yet supported:
                return null;
            default:
                //Assert.isTrue(false, "Node type not covered: " + node.getClass().getName()); //$NON-NLS-1$
                return null;
        }
    }
    String concatStr = prefix + source + suffix;
    TextEdit edit = format2(code, concatStr, prefix.length(), source.length(), indentationLevel, lineSeparator, options);
    if (edit != null && prefix.length() > 0) {
        edit.moveTree(-prefix.length());
    }
    return edit;
}