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

Example 41 with ASTNode

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

the class JavadocContentAccess2 method handleContentElements.

private void handleContentElements(List<? extends ASTNode> nodes, boolean skipLeadingWhitespace) {
    ASTNode previousNode = null;
    for (Iterator<? extends ASTNode> iter = nodes.iterator(); iter.hasNext(); ) {
        ASTNode child = iter.next();
        if (previousNode != null) {
            int previousEnd = previousNode.getStartPosition() + previousNode.getLength();
            int childStart = child.getStartPosition();
            if (previousEnd > childStart) {
                // should never happen, see https://bugs.eclipse.org/bugs/show_bug.cgi?id=304826
                Exception exception = new Exception(//$NON-NLS-1$
                "Illegal ASTNode positions: previousEnd=" + previousEnd + ", childStart=" + //$NON-NLS-1$
                childStart + ", element=" + //$NON-NLS-1$
                fElement.getHandleIdentifier() + ", Javadoc:\n" + //$NON-NLS-1$
                fSource);
                LOG.error(exception.getMessage(), exception);
            } else if (previousEnd != childStart) {
                // Need to preserve whitespace before a node that's not
                // directly following the previous node (e.g. on a new line)
                // due to https://bugs.eclipse.org/bugs/show_bug.cgi?id=206518 :
                String textWithStars = fSource.substring(previousEnd, childStart);
                String text = removeDocLineIntros(textWithStars);
                fBuf.append(text);
            }
        }
        previousNode = child;
        if (child instanceof TextElement) {
            String text = ((TextElement) child).getText();
            if (skipLeadingWhitespace) {
                //$NON-NLS-1$ //$NON-NLS-2$
                text = text.replaceFirst("^\\s+", "");
            }
            // workaround for https://bugs.eclipse.org/bugs/show_bug.cgi?id=233481 :
            //$NON-NLS-1$ //$NON-NLS-2$
            text = text.replaceAll("(\r\n?|\n)([ \t]*\\*)", "$1");
            handleText(text);
        } else if (child instanceof TagElement) {
            handleInlineTagElement((TagElement) child);
        } else {
            // This is unexpected. Fail gracefully by just copying the source.
            int start = child.getStartPosition();
            String text = fSource.substring(start, start + child.getLength());
            fBuf.append(removeDocLineIntros(text));
        }
    }
}

Example 42 with ASTNode

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

the class SemanticHighlightings method getBinding.

/**
     * Extracts the binding from the token's simple name.
     * Works around bug 62605 to return the correct constructor binding in a ClassInstanceCreation.
     *
     * @param token
     *         the token to extract the binding from
     * @return the token's binding, or <code>null</code>
     */
private static IBinding getBinding(SemanticToken token) {
    ASTNode node = token.getNode();
    ASTNode normalized = ASTNodes.getNormalizedNode(node);
    if (normalized.getLocationInParent() == ClassInstanceCreation.TYPE_PROPERTY) {
        // work around: https://bugs.eclipse.org/bugs/show_bug.cgi?id=62605
        return ((ClassInstanceCreation) normalized.getParent()).resolveConstructorBinding();
    }
    return token.getBinding();
}

Example 43 with ASTNode

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

the class InferTypeArgumentsRefactoring method rewriteCastVariable.

private static ASTNode rewriteCastVariable(CastVariable2 castCv, CompilationUnitRewrite rewrite, InferTypeArgumentsTCModel tCModel) {
    //, List positionGroups) {
    ASTNode node = castCv.getRange().getNode(rewrite.getRoot());
    ConstraintVariable2 expressionVariable = castCv.getExpressionVariable();
    ConstraintVariable2 methodReceiverCv = tCModel.getMethodReceiverCv(expressionVariable);
    if (methodReceiverCv != null) {
        TType chosenReceiverType = InferTypeArgumentsConstraintsSolver.getChosenType(methodReceiverCv);
        if (chosenReceiverType == null)
            return null;
        else if (!InferTypeArgumentsTCModel.isAGenericType(chosenReceiverType))
            return null;
        else if (hasUnboundElement(methodReceiverCv, tCModel))
            return null;
    }
    CastExpression castExpression = (CastExpression) node;
    Expression expression = castExpression.getExpression();
    ASTNode nodeToReplace;
    if (castExpression.getParent() instanceof ParenthesizedExpression)
        nodeToReplace = castExpression.getParent();
    else
        nodeToReplace = castExpression;
    Expression newExpression = (Expression) rewrite.getASTRewrite().createMoveTarget(expression);
    rewrite.getASTRewrite().replace(nodeToReplace, newExpression, rewrite.createGroupDescription(RefactoringCoreMessages.InferTypeArgumentsRefactoring_removeCast));
    rewrite.getImportRemover().registerRemovedNode(nodeToReplace);
    return newExpression;
}

Example 44 with ASTNode

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

the class SourceProvider method replaceParameterWithExpression.

private void replaceParameterWithExpression(ASTRewrite rewriter, CallContext context, ImportRewrite importRewrite) throws CoreException {
    Expression[] arguments = context.arguments;
    try {
        ITextFileBuffer buffer = RefactoringFileBuffers.acquire(context.compilationUnit);
        for (int i = 0; i < arguments.length; i++) {
            Expression expression = arguments[i];
            String expressionString = null;
            if (expression instanceof SimpleName) {
                expressionString = ((SimpleName) expression).getIdentifier();
            } else {
                try {
                    expressionString = buffer.getDocument().get(expression.getStartPosition(), expression.getLength());
                } catch (BadLocationException exception) {
                    JavaPlugin.log(exception);
                    continue;
                }
            }
            ParameterData parameter = getParameterData(i);
            List<SimpleName> references = parameter.references();
            for (Iterator<SimpleName> iter = references.iterator(); iter.hasNext(); ) {
                ASTNode element = iter.next();
                Expression newExpression = (Expression) rewriter.createStringPlaceholder(expressionString, expression.getNodeType());
                AST ast = rewriter.getAST();
                ITypeBinding explicitCast = ASTNodes.getExplicitCast(expression, (Expression) element);
                if (explicitCast != null) {
                    CastExpression cast = ast.newCastExpression();
                    if (NecessaryParenthesesChecker.needsParentheses(expression, cast, CastExpression.EXPRESSION_PROPERTY)) {
                        newExpression = createParenthesizedExpression(newExpression, ast);
                    }
                    cast.setExpression(newExpression);
                    ImportRewriteContext importRewriteContext = new ContextSensitiveImportRewriteContext(expression, importRewrite);
                    cast.setType(importRewrite.addImport(explicitCast, ast, importRewriteContext));
                    expression = newExpression = cast;
                }
                if (NecessaryParenthesesChecker.needsParentheses(expression, element.getParent(), element.getLocationInParent())) {
                    newExpression = createParenthesizedExpression(newExpression, ast);
                }
                rewriter.replace(element, newExpression, null);
            }
        }
    } finally {
        RefactoringFileBuffers.release(context.compilationUnit);
    }
}

Example 45 with ASTNode

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

the class SourceProvider method isDangligIf.

public boolean isDangligIf() {
    List<Statement> statements = fDeclaration.getBody().statements();
    if (statements.size() != 1)
        return false;
    ASTNode p = statements.get(0);
    while (true) {
        if (p instanceof IfStatement) {
            return ((IfStatement) p).getElseStatement() == null;
        } else {
            ChildPropertyDescriptor childD;
            if (p instanceof WhileStatement) {
                childD = WhileStatement.BODY_PROPERTY;
            } else if (p instanceof ForStatement) {
                childD = ForStatement.BODY_PROPERTY;
            } else if (p instanceof EnhancedForStatement) {
                childD = EnhancedForStatement.BODY_PROPERTY;
            } else if (p instanceof DoStatement) {
                childD = DoStatement.BODY_PROPERTY;
            } else if (p instanceof LabeledStatement) {
                childD = LabeledStatement.BODY_PROPERTY;
            } else {
                return false;
            }
            Statement body = (Statement) p.getStructuralProperty(childD);
            if (body instanceof Block) {
                return false;
            } else {
                p = body;
            }
        }
    }
}