Java Code Examples for org.eclipse.xtext.formatting2.ITextReplacerContext#getPreviousContext()

The following examples show how to use org.eclipse.xtext.formatting2.ITextReplacerContext#getPreviousContext() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: TextReplacerContext.java From xtext-core with Eclipse Public License 2.0

6 votes

@Override
public List<ITextReplacement> getReplacementsUntil(ITextReplacerContext first) {
	ITextReplacerContext current = this;
	List<Iterable<ITextReplacement>> reversedReplacements = Lists.newArrayList();
	while (current != null) {
		Iterable<ITextReplacement> localReplacements = current.getLocalReplacements();
		if (!Iterables.isEmpty(localReplacements))
			reversedReplacements.add(localReplacements);
		if (current == first)
			break;
		current = current.getPreviousContext();
	}
	Collections.reverse(reversedReplacements);
	List<ITextReplacement> flattenedReplacements = new TextReplacementList<ITextReplacement>();
	for (Iterable<ITextReplacement> chunk : reversedReplacements)
		Iterables.addAll(flattenedReplacements, chunk);
	return flattenedReplacements;
}

Example 2

Source File: TextReplacerContext.java From xtext-core with Eclipse Public License 2.0

6 votes

@Override
public ITextReplacerContext withReplacer(ITextReplacer replacer) {
	ITextReplacerContext current = this;
	while (current != null) {
		ITextReplacer lastReplacer = current.getReplacer();
		if (lastReplacer != null) {
			if (nextReplacerIsChild) {
				Preconditions.checkArgument(lastReplacer.getRegion().contains(replacer.getRegion()));
			} else {
				Preconditions
						.checkArgument(lastReplacer.getRegion().getEndOffset() <= replacer.getRegion().getOffset());
			}
			break;
		}
		current = current.getPreviousContext();
	}
	return new TextReplacerContext(document, this, indentation, replacer);
}

Example 3

Source File: TextReplacerContext.java From xtext-core with Eclipse Public License 2.0

5 votes

protected ITextSegment getRegion(int index) {
	ITextReplacerContext current = this;
	while (current != null) {
		ITextReplacer replacer2 = current.getReplacer();
		if (replacer2 != null) {
			if (index == 0) {
				return replacer2.getRegion();
			} else
				index--;
		}
		current = current.getPreviousContext();
	}
	return null;
}

Example 4

Source File: FormattableDocument.java From xtext-core with Eclipse Public License 2.0

4 votes

protected ITextReplacerContext createReplacements(ITextReplacerContext previous) {
	Integer maxLineWidth = getRequest().getPreferences().getPreference(FormatterPreferenceKeys.maxLineWidth);
	ITextReplacerContext context = previous.withDocument(this);
	ITextReplacerContext wrappable = null;
	Set<ITextReplacer> wrapped = Sets.newHashSet();
	Iterator<ITextReplacer> replacers = getReplacers().iterator();
	while (replacers.hasNext()) {
		ITextReplacer replacer = replacers.next();
		context = context.withReplacer(replacer);
		if (wrappable != null && context.isWrapSincePrevious()) {
			wrappable = null;
		}
		if (wrappable != null && needsAutowrap(wrappable, context, maxLineWidth)) {
			// TODO: raise report if replacer claims it can do autowrap but
			// then doesn't
			while (context != wrappable) {
				context = context.getPreviousContext();
			}
			replacer = context.getReplacer();
			replacers = getReplacers().iteratorAfter(replacer);
			context.setAutowrap(true);
			wrappable = null;
		}
		ITextReplacerContext nextContext = replacer.createReplacements(context);
		if (wrappable != null && context.isWrapInRegion()) {
			wrappable = null;
		} else {
			Integer canAutowrap = context.canAutowrap();
			if (canAutowrap != null && canAutowrap >= 0 && !context.isAutowrap() && !wrapped.contains(replacer)) {
				boolean can = true;
				if (wrappable != null) {
					int lastEndOffset = wrappable.canAutowrap()
							+ wrappable.getReplacer().getRegion().getEndOffset();
					int thisEndOffset = canAutowrap + context.getReplacer().getRegion().getEndOffset();
					can = lastEndOffset < thisEndOffset;
				}
				if (can) {
					wrappable = context;
					wrapped.add(replacer);
				}
			}
		}
		context = nextContext;
	}
	return context.withDocument(previous.getDocument());
}