Examples with BadLocationException org.eclipse.jface.text.BadLocationException used on opensource projects

Example 36 with BadLocationException

use of org.eclipse.jface.text.BadLocationException in project che by eclipse.

the class JavaTypeCompletionProposalComputer method guessContextInformationPosition.

@Override
protected int guessContextInformationPosition(ContentAssistInvocationContext context) {
    final int contextPosition = context.getInvocationOffset();
    IDocument document = context.getDocument();
    JavaHeuristicScanner scanner = new JavaHeuristicScanner(document);
    int bound = Math.max(-1, contextPosition - 200);
    // try the innermost scope of angle brackets that looks like a generic type argument list
    try {
        int pos = contextPosition - 1;
        do {
            int angle = scanner.findOpeningPeer(pos, bound, '<', '>');
            if (angle == JavaHeuristicScanner.NOT_FOUND)
                break;
            int token = scanner.previousToken(angle - 1, bound);
            // next token must be a method name that is a generic type
            if (token == Symbols.TokenIDENT) {
                int off = scanner.getPosition() + 1;
                int end = angle;
                String ident = document.get(off, end - off).trim();
                if (JavaHeuristicScanner.isGenericStarter(ident))
                    return angle + 1;
            }
            pos = angle - 1;
        } while (true);
    } catch (BadLocationException x) {
    }
    return super.guessContextInformationPosition(context);
}

Example 37 with BadLocationException

use of org.eclipse.jface.text.BadLocationException in project che by eclipse.

the class JavaTypeCompletionProposalComputer method computeCompletionProposals.

/*
	 * @see org.eclipse.jdt.internal.ui.text.java.JavaCompletionProposalComputer#computeCompletionProposals(org.eclipse.jface.text.contentassist.TextContentAssistInvocationContext, org.eclipse.core.runtime.IProgressMonitor)
	 */
@Override
public List<ICompletionProposal> computeCompletionProposals(ContentAssistInvocationContext context, IProgressMonitor monitor) {
    List<ICompletionProposal> types = super.computeCompletionProposals(context, monitor);
    if (!(context instanceof JavaContentAssistInvocationContext))
        return types;
    JavaContentAssistInvocationContext javaContext = (JavaContentAssistInvocationContext) context;
    CompletionContext coreContext = javaContext.getCoreContext();
    if (coreContext != null && coreContext.getTokenLocation() != CompletionContext.TL_CONSTRUCTOR_START)
        return types;
    try {
        if (types.size() > 0 && context.computeIdentifierPrefix().length() == 0) {
            IType expectedType = javaContext.getExpectedType();
            if (expectedType != null) {
                // empty prefix completion - insert LRU types if known, but prune if they already occur in the core list
                // compute minmimum relevance and already proposed list
                int relevance = Integer.MAX_VALUE;
                Set<String> proposed = new HashSet<String>();
                for (Iterator<ICompletionProposal> it = types.iterator(); it.hasNext(); ) {
                    AbstractJavaCompletionProposal p = (AbstractJavaCompletionProposal) it.next();
                    IJavaElement element = p.getJavaElement();
                    if (element instanceof IType)
                        proposed.add(((IType) element).getFullyQualifiedName());
                    relevance = Math.min(relevance, p.getRelevance());
                }
                // insert history types
                List<String> history = JavaPlugin.getDefault().getContentAssistHistory().getHistory(expectedType.getFullyQualifiedName()).getTypes();
                relevance -= history.size() + 1;
                for (Iterator<String> it = history.iterator(); it.hasNext(); ) {
                    String type = it.next();
                    if (proposed.contains(type))
                        continue;
                    IJavaCompletionProposal proposal = createTypeProposal(relevance, type, javaContext);
                    if (proposal != null)
                        types.add(proposal);
                    relevance++;
                }
            }
        }
    } catch (BadLocationException x) {
        // log & ignore
        JavaPlugin.log(x);
    } catch (JavaModelException x) {
        // log & ignore
        JavaPlugin.log(x);
    }
    return types;
}

Example 38 with BadLocationException

use of org.eclipse.jface.text.BadLocationException in project che by eclipse.

the class CodeTemplateContext method changeLineDelimiter.

private static String changeLineDelimiter(String code, String lineDelim) {
    try {
        ILineTracker tracker = new DefaultLineTracker();
        tracker.set(code);
        int nLines = tracker.getNumberOfLines();
        if (nLines == 1) {
            return code;
        }
        StringBuffer buf = new StringBuffer();
        for (int i = 0; i < nLines; i++) {
            if (i != 0) {
                buf.append(lineDelim);
            }
            IRegion region = tracker.getLineInformation(i);
            String line = code.substring(region.getOffset(), region.getOffset() + region.getLength());
            buf.append(line);
        }
        return buf.toString();
    } catch (BadLocationException e) {
        // can not happen
        return code;
    }
}

Example 39 with BadLocationException

use of org.eclipse.jface.text.BadLocationException in project che by eclipse.

the class JavaContext method getKey.

/*
	 * @see org.eclipse.jdt.internal.corext.template.DocumentTemplateContext#getKey()
	 */
@Override
public String getKey() {
    if (getCompletionLength() == 0)
        return super.getKey();
    try {
        IDocument document = getDocument();
        int start = getStart();
        int end = getCompletionOffset();
        return start <= end ? document.get(start, end - start) : //$NON-NLS-1$
        "";
    } catch (BadLocationException e) {
        return super.getKey();
    }
}

Example 40 with BadLocationException

use of org.eclipse.jface.text.BadLocationException in project che by eclipse.

the class JavaContext method getIndentation.

/**
	 * Returns the indentation level at the position of code completion.
	 *
	 * @return the indentation level at the position of the code completion
	 */
private int getIndentation() {
    int start = getStart();
    IDocument document = getDocument();
    try {
        IRegion region = document.getLineInformationOfOffset(start);
        String lineContent = document.get(region.getOffset(), region.getLength());
        IJavaProject project = getJavaProject();
        return Strings.computeIndentUnits(lineContent, project);
    } catch (BadLocationException e) {
        return 0;
    }
}