Examples with ITextSegment org.eclipse.xtext.formatting2.regionaccess.ITextSegment used on opensource projects

Example 36 with ITextSegment

use of org.eclipse.xtext.formatting2.regionaccess.ITextSegment in project n4js by eclipse.

the class FormatterXpectMethod method formattedLines.

/**
 */
@Xpect
@ParameterParser(syntax = "arg1=INT")
public void formattedLines(@StringExpectation(whitespaceSensitive = true) IStringExpectation exp, // arg1
int lines, XpectInvocation inv, TargetSyntaxSupport syntax, ITextRegionAccess reg, ISetupInitializer<Preferences> prefInit) {
    ITextSegment region = findRegion(lines, inv, syntax, reg);
    Preferences prefs = new Preferences();
    // First put some defaults
    prefs.put(N4JSFormatterPreferenceKeys.FORMAT_PARENTHESIS, true);
    prefs.put(FormatterPreferenceKeys.lineSeparator, "\n");
    // Second init from concrete tests - will override defaults.
    prefInit.initialize(prefs);
    IFormatter2 formatter = formatterProvider.get();
    FormatterRequest request = formatterRequestProvider.get();
    request.setTextRegionAccess(reg);
    request.setExceptionHandler(ExceptionAcceptor.THROWING);
    // needed in case a check like this will be implemented:
    // org.eclipse.xtext.testing.formatter.FormatterTester.assertAllWhitespaceIsFormatted()
    request.setAllowIdentityEdits(true);
    request.setFormatUndefinedHiddenRegionsOnly(false);
    request.addRegion(region);
    request.setPreferences(prefs);
    List<ITextReplacement> replacements = formatter.format(request);
    String fmt = reg.getRewriter().renderToString(replacements);
    ITextSegment doc = reg.regionForDocument();
    int endIndex = region.getEndOffset() + (fmt.length() - doc.getLength()) - 1;
    String selection = fmt.substring(region.getOffset(), endIndex);
    exp.assertEquals(selection);
}

Example 37 with ITextSegment

use of org.eclipse.xtext.formatting2.regionaccess.ITextSegment in project n4js by eclipse.

the class N4MultilineCommentReplacer method createReplacements.

@Override
public ITextReplacerContext createReplacements(ITextReplacerContext context) {
    if (!multiline)
        return context;
    IComment comment = getComment();
    ITextRegionAccess access = comment.getTextRegionAccess();
    List<ILineRegion> lines = comment.getLineRegions();
    String oldIndentation = lines.get(0).getIndentation().getText();
    String indentationString = context.getIndentationString();
    String newIndentation = indentationString + " " + prefix;
    String newIndentation2 = newIndentation + " ";
    for (int i = 1; i < lines.size() - 1; i++) {
        ITextSegment line = lines.get(i);
        String text = line.getText();
        int prefixOffset = prefixOffset(text);
        ITextSegment target;
        if (prefixOffset >= 0)
            target = access.regionForOffset(line.getOffset(), prefixOffset + 1);
        else if (text.startsWith(oldIndentation))
            target = access.regionForOffset(line.getOffset(), oldIndentation.length() + nonWhiteSpaceOffset(text.substring(oldIndentation.length())));
        else
            target = access.regionForOffset(line.getOffset(), /* 0 */
            nonWhiteSpaceOffset(text));
        if (line.getEndOffset() - target.getEndOffset() > 0) {
            // content left in line
            context.addReplacement(target.replaceWith(newIndentation2));
        } else {
            // no content left
            context.addReplacement(target.replaceWith(newIndentation));
        }
    }
    if (lines.size() > 1) {
        ILineRegion line = lines.get(lines.size() - 1);
        context.addReplacement(line.getIndentation().replaceWith(indentationString + " "));
    }
    return context;
}

Example 38 with ITextSegment

use of org.eclipse.xtext.formatting2.regionaccess.ITextSegment in project n4js by eclipse.

the class FixedMultilineCommentReplacer method createReplacements.

@Override
public ITextReplacerContext createReplacements(ITextReplacerContext context) {
    if (!multiline)
        return context;
    IComment comment = getComment();
    ITextRegionAccess access = comment.getTextRegionAccess();
    List<ILineRegion> lines = comment.getLineRegions();
    String oldIndentation = lines.get(0).getIndentation().getText();
    String indentationString = context.getIndentationString();
    String newIndentation = indentationString;
    for (int i = 1; i < lines.size() - 1; i++) {
        ITextSegment line = lines.get(i);
        String text = line.getText();
        ITextSegment target;
        if (text.startsWith(oldIndentation))
            target = access.regionForOffset(line.getOffset(), oldIndentation.length());
        else
            target = access.regionForOffset(line.getOffset(), 0);
        context.addReplacement(target.replaceWith(newIndentation));
    }
    if (lines.size() > 1) {
        ILineRegion line = lines.get(lines.size() - 1);
        context.addReplacement(line.getIndentation().replaceWith(indentationString + " "));
    }
    return context;
}