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

Example 71 with AST

use of org.eclipse.jdt.core.dom.AST 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 72 with AST

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

the class ConvertAnonymousToNestedRefactoring method createNewNestedClass.

private AbstractTypeDeclaration createNewNestedClass(CompilationUnitRewrite rewrite, ITypeBinding[] typeParameters) throws CoreException {
    final AST ast = fAnonymousInnerClassNode.getAST();
    final TypeDeclaration newDeclaration = ast.newTypeDeclaration();
    newDeclaration.setInterface(false);
    newDeclaration.setJavadoc(null);
    newDeclaration.modifiers().addAll(ASTNodeFactory.newModifiers(ast, createModifiersForNestedClass()));
    newDeclaration.setName(ast.newSimpleName(fClassName));
    TypeParameter parameter = null;
    for (int index = 0; index < typeParameters.length; index++) {
        parameter = ast.newTypeParameter();
        parameter.setName(ast.newSimpleName(typeParameters[index].getName()));
        newDeclaration.typeParameters().add(parameter);
    }
    setSuperType(newDeclaration);
    IJavaProject project = fCu.getJavaProject();
    IVariableBinding[] bindings = getUsedLocalVariables();
    ArrayList<String> fieldNames = new ArrayList<String>();
    for (int i = 0; i < bindings.length; i++) {
        String name = StubUtility.getBaseName(bindings[i], project);
        String[] fieldNameProposals = StubUtility.getVariableNameSuggestions(NamingConventions.VK_INSTANCE_FIELD, project, name, 0, fieldNames, true);
        fieldNames.add(fieldNameProposals[0]);
        if (fLinkedProposalModel != null) {
            LinkedProposalPositionGroup positionGroup = fLinkedProposalModel.getPositionGroup(KEY_FIELD_NAME_EXT + i, true);
            for (int k = 0; k < fieldNameProposals.length; k++) {
                positionGroup.addProposal(fieldNameProposals[k], null, fieldNameProposals.length - k);
            }
        }
    }
    String[] allFieldNames = fieldNames.toArray(new String[fieldNames.size()]);
    List<BodyDeclaration> newBodyDeclarations = newDeclaration.bodyDeclarations();
    createFieldsForAccessedLocals(rewrite, bindings, allFieldNames, newBodyDeclarations);
    MethodDeclaration newConstructorDecl = createNewConstructor(rewrite, bindings, allFieldNames);
    if (newConstructorDecl != null) {
        newBodyDeclarations.add(newConstructorDecl);
    }
    updateAndMoveBodyDeclarations(rewrite, bindings, allFieldNames, newBodyDeclarations, newConstructorDecl);
    if (doAddComments()) {
        String[] parameterNames = new String[typeParameters.length];
        for (int index = 0; index < parameterNames.length; index++) {
            parameterNames[index] = typeParameters[index].getName();
        }
        String string = CodeGeneration.getTypeComment(rewrite.getCu(), fClassName, parameterNames, StubUtility.getLineDelimiterUsed(fCu));
        if (string != null) {
            Javadoc javadoc = (Javadoc) rewrite.getASTRewrite().createStringPlaceholder(string, ASTNode.JAVADOC);
            newDeclaration.setJavadoc(javadoc);
        }
    }
    if (fLinkedProposalModel != null) {
        addLinkedPosition(KEY_TYPE_NAME, newDeclaration.getName(), rewrite.getASTRewrite(), false);
        ModifierCorrectionSubProcessor.installLinkedVisibilityProposals(fLinkedProposalModel, rewrite.getASTRewrite(), newDeclaration.modifiers(), false);
    }
    return newDeclaration;
}

Example 73 with AST

use of org.eclipse.jdt.core.dom.AST 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 74 with AST

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

the class CallInliner method computeRealArguments.

private void computeRealArguments() {
    List<Expression> arguments = Invocations.getArguments(fInvocation);
    Set<Expression> canNotInline = crossCheckArguments(arguments);
    boolean needsVarargBoxing = needsVarargBoxing(arguments);
    int varargIndex = fSourceProvider.getVarargIndex();
    AST ast = fInvocation.getAST();
    Expression[] realArguments = new Expression[needsVarargBoxing ? varargIndex + 1 : arguments.size()];
    for (int i = 0; i < (needsVarargBoxing ? varargIndex : arguments.size()); i++) {
        Expression expression = arguments.get(i);
        ParameterData parameter = fSourceProvider.getParameterData(i);
        if (canInline(expression, parameter) && !canNotInline.contains(expression)) {
            realArguments[i] = expression;
        } else {
            String name = fInvocationScope.createName(parameter.getName(), true);
            realArguments[i] = ast.newSimpleName(name);
            VariableDeclarationStatement local = createLocalDeclaration(parameter.getTypeBinding(), name, (Expression) fRewrite.createCopyTarget(expression));
            if (parameter.isFinal()) {
                local.modifiers().add(fInvocation.getAST().newModifier(ModifierKeyword.FINAL_KEYWORD));
            }
            fLocals.add(local);
        }
    }
    if (needsVarargBoxing) {
        ParameterData parameter = fSourceProvider.getParameterData(varargIndex);
        String name = fInvocationScope.createName(parameter.getName(), true);
        realArguments[varargIndex] = ast.newSimpleName(name);
        Type type = fImportRewrite.addImport(parameter.getTypeBinding(), ast);
        VariableDeclarationFragment fragment = ast.newVariableDeclarationFragment();
        fragment.setName(ast.newSimpleName(name));
        ArrayInitializer initializer = ast.newArrayInitializer();
        for (int i = varargIndex; i < arguments.size(); i++) {
            initializer.expressions().add(fRewrite.createCopyTarget(arguments.get(i)));
        }
        fragment.setInitializer(initializer);
        VariableDeclarationStatement decl = ast.newVariableDeclarationStatement(fragment);
        decl.setType(type);
        fLocals.add(decl);
    }
    fContext.compilationUnit = fCUnit;
    fContext.arguments = realArguments;
}

Example 75 with AST

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

the class ConvertAnonymousToNestedRefactoring method createFieldsForAccessedLocals.

private void createFieldsForAccessedLocals(CompilationUnitRewrite rewrite, IVariableBinding[] varBindings, String[] fieldNames, List<BodyDeclaration> newBodyDeclarations) throws CoreException {
    final ImportRewrite importRewrite = rewrite.getImportRewrite();
    final ASTRewrite astRewrite = rewrite.getASTRewrite();
    final AST ast = astRewrite.getAST();
    for (int i = 0; i < varBindings.length; i++) {
        VariableDeclarationFragment fragment = ast.newVariableDeclarationFragment();
        fragment.setInitializer(null);
        fragment.setName(ast.newSimpleName(fieldNames[i]));
        FieldDeclaration field = ast.newFieldDeclaration(fragment);
        ITypeBinding varType = varBindings[i].getType();
        field.setType(importRewrite.addImport(varType, ast));
        field.modifiers().addAll(ASTNodeFactory.newModifiers(ast, Modifier.PRIVATE | Modifier.FINAL));
        if (doAddComments()) {
            String string = CodeGeneration.getFieldComment(rewrite.getCu(), varType.getName(), fieldNames[i], StubUtility.getLineDelimiterUsed(fCu));
            if (string != null) {
                Javadoc javadoc = (Javadoc) astRewrite.createStringPlaceholder(string, ASTNode.JAVADOC);
                field.setJavadoc(javadoc);
            }
        }
        newBodyDeclarations.add(field);
        addLinkedPosition(KEY_FIELD_NAME_EXT + i, fragment.getName(), astRewrite, false);
    }
}