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

Example 16 with Expression

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

the class UnresolvedElementsSubProcessor method addMissingCastParentsProposal.

private static void addMissingCastParentsProposal(ICompilationUnit cu, MethodInvocation invocationNode, Collection<ICommandAccess> proposals) {
    Expression sender = invocationNode.getExpression();
    if (sender instanceof ThisExpression) {
        return;
    }
    ITypeBinding senderBinding = sender.resolveTypeBinding();
    if (senderBinding == null || Modifier.isFinal(senderBinding.getModifiers())) {
        return;
    }
    if (sender instanceof Name && ((Name) sender).resolveBinding() instanceof ITypeBinding) {
        // static access
        return;
    }
    ASTNode parent = invocationNode.getParent();
    while (parent instanceof Expression && parent.getNodeType() != ASTNode.CAST_EXPRESSION) {
        parent = parent.getParent();
    }
    boolean hasCastProposal = false;
    if (parent instanceof CastExpression) {
        //	(TestCase) x.getName() -> ((TestCase) x).getName
        hasCastProposal = useExistingParentCastProposal(cu, (CastExpression) parent, sender, invocationNode.getName(), getArgumentTypes(invocationNode.arguments()), proposals);
    }
    if (!hasCastProposal) {
        // x.getName() -> ((TestCase) x).getName
        Expression target = sender;
        while (target instanceof ParenthesizedExpression) {
            target = ((ParenthesizedExpression) target).getExpression();
        }
        String label;
        if (target.getNodeType() != ASTNode.CAST_EXPRESSION) {
            String targetName = null;
            if (target.getLength() <= 18) {
                targetName = ASTNodes.asString(target);
            }
            if (targetName == null) {
                label = CorrectionMessages.UnresolvedElementsSubProcessor_methodtargetcast_description;
            } else {
                label = Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_methodtargetcast2_description, BasicElementLabels.getJavaCodeString(targetName));
            }
        } else {
            String targetName = null;
            if (target.getLength() <= 18) {
                targetName = ASTNodes.asString(((CastExpression) target).getExpression());
            }
            if (targetName == null) {
                label = CorrectionMessages.UnresolvedElementsSubProcessor_changemethodtargetcast_description;
            } else {
                label = Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_changemethodtargetcast2_description, BasicElementLabels.getJavaCodeString(targetName));
            }
        }
        proposals.add(new CastCorrectionProposal(label, cu, target, (ITypeBinding) null, IProposalRelevance.CHANGE_CAST));
    }
}

Example 17 with Expression

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

the class AddArgumentCorrectionProposal method getRewrite.

/*(non-Javadoc)
	 * @see org.eclipse.jdt.internal.ui.text.correction.ASTRewriteCorrectionProposal#getRewrite()
	 */
@Override
protected ASTRewrite getRewrite() {
    AST ast = fCallerNode.getAST();
    ASTRewrite rewrite = ASTRewrite.create(ast);
    ChildListPropertyDescriptor property = getProperty();
    for (int i = 0; i < fInsertIndexes.length; i++) {
        int idx = fInsertIndexes[i];
        //$NON-NLS-1$
        String key = "newarg_" + i;
        Expression newArg = evaluateArgumentExpressions(ast, fParamTypes[idx], key);
        ListRewrite listRewriter = rewrite.getListRewrite(fCallerNode, property);
        listRewriter.insertAt(newArg, idx, null);
        addLinkedPosition(rewrite.track(newArg), i == 0, key);
    }
    return rewrite;
}

Example 18 with Expression

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

the class AssignToVariableAssistProposal method doAddLocal.

private ASTRewrite doAddLocal() {
    Expression expression = ((ExpressionStatement) fNodeToAssign).getExpression();
    AST ast = fNodeToAssign.getAST();
    ASTRewrite rewrite = ASTRewrite.create(ast);
    createImportRewrite((CompilationUnit) fNodeToAssign.getRoot());
    String[] varNames = suggestLocalVariableNames(fTypeBinding, expression);
    for (int i = 0; i < varNames.length; i++) {
        addLinkedPositionProposal(KEY_NAME, varNames[i], null);
    }
    VariableDeclarationFragment newDeclFrag = ast.newVariableDeclarationFragment();
    newDeclFrag.setName(ast.newSimpleName(varNames[0]));
    newDeclFrag.setInitializer((Expression) rewrite.createCopyTarget(expression));
    Type type = evaluateType(ast);
    if (ASTNodes.isControlStatementBody(fNodeToAssign.getLocationInParent())) {
        Block block = ast.newBlock();
        block.statements().add(rewrite.createMoveTarget(fNodeToAssign));
        rewrite.replace(fNodeToAssign, block, null);
    }
    if (needsSemicolon(expression)) {
        VariableDeclarationStatement varStatement = ast.newVariableDeclarationStatement(newDeclFrag);
        varStatement.setType(type);
        rewrite.replace(expression, varStatement, null);
    } else {
        // trick for bug 43248: use an VariableDeclarationExpression and keep the ExpressionStatement
        VariableDeclarationExpression varExpression = ast.newVariableDeclarationExpression(newDeclFrag);
        varExpression.setType(type);
        rewrite.replace(expression, varExpression, null);
    }
    addLinkedPosition(rewrite.track(newDeclFrag.getName()), true, KEY_NAME);
    addLinkedPosition(rewrite.track(type), false, KEY_TYPE);
    // set cursor after expression statement
    setEndPosition(rewrite.track(fNodeToAssign));
    return rewrite;
}

Example 19 with Expression

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

the class InlineTempRefactoring method getInitializerSource.

private Expression getInitializerSource(CompilationUnitRewrite rewrite, SimpleName reference) throws JavaModelException {
    Expression copy = getModifiedInitializerSource(rewrite, reference);
    if (NecessaryParenthesesChecker.needsParentheses(copy, reference.getParent(), reference.getLocationInParent())) {
        ParenthesizedExpression parentExpr = rewrite.getAST().newParenthesizedExpression();
        parentExpr.setExpression(copy);
        return parentExpr;
    }
    return copy;
}

Example 20 with Expression

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

the class InlineTempRefactoring method getModifiedInitializerSource.

private Expression getModifiedInitializerSource(CompilationUnitRewrite rewrite, SimpleName reference) throws JavaModelException {
    VariableDeclaration varDecl = getVariableDeclaration();
    Expression initializer = varDecl.getInitializer();
    ASTNode referenceContext = reference.getParent();
    if (Invocations.isResolvedTypeInferredFromExpectedType(initializer)) {
        if (!(referenceContext instanceof VariableDeclarationFragment || referenceContext instanceof SingleVariableDeclaration || referenceContext instanceof Assignment)) {
            ITypeBinding[] typeArguments = Invocations.getInferredTypeArguments(initializer);
            if (typeArguments != null) {
                String newSource = createParameterizedInvocation(initializer, typeArguments, rewrite);
                return (Expression) rewrite.getASTRewrite().createStringPlaceholder(newSource, initializer.getNodeType());
            }
        }
    }
    Expression copy = (Expression) rewrite.getASTRewrite().createCopyTarget(initializer);
    AST ast = rewrite.getAST();
    if (NecessaryParenthesesChecker.needsParentheses(initializer, reference.getParent(), reference.getLocationInParent())) {
        ParenthesizedExpression parenthesized = ast.newParenthesizedExpression();
        parenthesized.setExpression(copy);
        copy = parenthesized;
    }
    ITypeBinding explicitCast = ASTNodes.getExplicitCast(initializer, reference);
    if (explicitCast != null) {
        CastExpression cast = ast.newCastExpression();
        if (NecessaryParenthesesChecker.needsParentheses(copy, cast, CastExpression.EXPRESSION_PROPERTY)) {
            ParenthesizedExpression parenthesized = ast.newParenthesizedExpression();
            parenthesized.setExpression(copy);
            copy = parenthesized;
        }
        cast.setExpression(copy);
        ImportRewriteContext context = new ContextSensitiveImportRewriteContext(reference, rewrite.getImportRewrite());
        cast.setType(rewrite.getImportRewrite().addImport(explicitCast, ast, context));
        copy = cast;
    } else if (initializer instanceof ArrayInitializer && ASTNodes.getDimensions(varDecl) > 0) {
        ArrayType newType = (ArrayType) ASTNodeFactory.newType(ast, varDecl);
        ArrayCreation newArrayCreation = ast.newArrayCreation();
        newArrayCreation.setType(newType);
        newArrayCreation.setInitializer((ArrayInitializer) copy);
        return newArrayCreation;
    }
    return copy;
}