Examples with IParseResult org.eclipse.xtext.parser.IParseResult used on opensource projects

Example 66 with IParseResult

use of org.eclipse.xtext.parser.IParseResult in project xtext-eclipse by eclipse.

the class FormatterTester method createMissingEditReplacements.

protected ArrayList<TextReplacement> createMissingEditReplacements(XtextResource res, Collection<TextReplacement> edits, int offset, int length) {
    Set<Integer> offsets = IterableExtensions.toSet(Iterables.transform(edits, (TextReplacement it) -> Integer.valueOf(it.getOffset())));
    ArrayList<TextReplacement> result = new ArrayList<>();
    int lastOffset = 0;
    IParseResult parseResult = res.getParseResult();
    if (parseResult != null) {
        ICompositeNode rootNode = parseResult.getRootNode();
        if (rootNode != null) {
            for (ILeafNode leaf : rootNode.getLeafNodes()) {
                if (!leaf.isHidden() || !StringExtensions.isNullOrEmpty(leaf.getText().trim())) {
                    ITextRegion leafRegion = leaf.getTextRegion();
                    if (lastOffset >= offset && leafRegion.getOffset() <= offset + length && !offsets.contains(Integer.valueOf(lastOffset))) {
                        result.add(new TextReplacement(lastOffset, leafRegion.getOffset() - lastOffset, "!!"));
                    }
                    lastOffset = leafRegion.getOffset() + leafRegion.getLength();
                }
            }
        }
    }
    return result;
}

Example 67 with IParseResult

use of org.eclipse.xtext.parser.IParseResult in project xtext-eclipse by eclipse.

the class FormatterTester method assertFormatted.

public void assertFormatted(AssertingFormatterData it) {
    try {
        String fullToBeParsed = it.getPrefix() + it.getToBeFormatted() + it.getPostfix();
        EObject parsed = parseHelper.parse(fullToBeParsed);
        if (!it.isAllowErrors()) {
            Assert.assertEquals(Joiner.on("\n").join(parsed.eResource().getErrors()), 0, parsed.eResource().getErrors().size());
        }
        String oldDocument = null;
        IParseResult parseResult = ((XtextResource) parsed.eResource()).getParseResult();
        if (parseResult != null) {
            ICompositeNode rootNode = parseResult.getRootNode();
            if (rootNode != null) {
                oldDocument = rootNode.getText();
            }
        }
        if (formatter instanceof AbstractFormatter) {
            ((AbstractFormatter) formatter).setAllowIdentityEdits(true);
        }
        int start = it.getPrefix().length();
        int length = it.getToBeFormatted().length();
        Set<TextReplacement> edits = new LinkedHashSet<>();
        Iterables.addAll(edits, formatter.format((XtextResource) parsed.eResource(), start, length, it.getCfg()));
        if (formatter instanceof AbstractFormatter) {
            if (((AbstractFormatter) formatter).isConflictOccurred()) {
                throw new RuntimeException("There are conflicting text edits, see console for details.");
            }
        }
        if (!it.isAllowErrors()) {
            Iterables.addAll(edits, createMissingEditReplacements((XtextResource) parsed.eResource(), edits, start, length));
        }
        String newDocument = applyEdits(oldDocument, edits);
        try {
            Assert.assertEquals((it.getPrefix() + it.getExpectation() + it.getPostfix()).toString(), newDocument.toString());
        } catch (AssertionError e) {
            System.out.println(applyDebugEdits(oldDocument, edits));
            System.out.println();
            throw e;
        }
        String parsed2Doc = applyEdits(fullToBeParsed, formatter.format((XtextResource) parsed.eResource(), 0, fullToBeParsed.length(), it.getCfg()));
        EObject parsed2 = parseHelper.parse(parsed2Doc);
        if (!it.isAllowErrors()) {
            Assert.assertEquals(0, parsed2.eResource().getErrors().size());
        }
        List<TextReplacement> edits2 = formatter.format((XtextResource) parsed2.eResource(), 0, parsed2Doc.length(), it.getCfg());
        String newDocument2 = applyEdits(parsed2Doc, edits2);
        try {
            Assert.assertEquals(parsed2Doc, newDocument2.toString());
        } catch (AssertionError e) {
            System.out.println(applyDebugEdits(newDocument, edits2));
            System.out.println();
            throw e;
        }
    } catch (Throwable e) {
        throw Exceptions.sneakyThrow(e);
    }
}

Example 68 with IParseResult

use of org.eclipse.xtext.parser.IParseResult in project xtext-eclipse by eclipse.

the class PartialParsingProcessor method processFile.

@Override
public String processFile(String completeData, String data, int offset, int len, String change) throws Exception {
    IParseResult initialParseResult = parser.parse(new StringReader(data));
    String newData = applyDelta(data, offset, len, change);
    ReplaceRegion replaceRegion = new ReplaceRegion(offset, len, change);
    try {
        IParseResult reparsed = parser.reparse(initialParseResult, replaceRegion);
        IParseResult parsedFromScratch = parser.parse(new StringReader(newData));
        assertEqual(data, newData, parsedFromScratch, reparsed);
        return newData;
    } catch (Throwable e) {
        ComparisonFailure throwMe = new ComparisonFailure(e.getMessage(), newData, replaceRegion + DELIM + data);
        throwMe.initCause(e);
        throw throwMe;
    }
}

Example 69 with IParseResult

use of org.eclipse.xtext.parser.IParseResult in project xtext-eclipse by eclipse.

the class XtextDocumentReconcileStrategy method createPostParseErrorMessage.

/**
 * Creates an error message containing the source code of the {@code resource}
 *
 * @since 2.15
 */
protected String createPostParseErrorMessage(XtextResource resource) {
    String message = "Error post-processing resource with content";
    IParseResult parseResult = resource.getParseResult();
    if (parseResult != null && parseResult.getRootNode() != null) {
        message += ":\n" + parseResult.getRootNode().getText();
    }
    return message;
}

Example 70 with IParseResult

use of org.eclipse.xtext.parser.IParseResult in project xtext-eclipse by eclipse.

the class AstSelectionProvider method getTextRegion.

protected ITextRegion getTextRegion(EObject eObject) {
    if (eObject == null)
        return null;
    IParseResult parseResult = ((XtextResource) eObject.eResource()).getParseResult();
    if (parseResult == null)
        return null;
    ICompositeNode rootNode = parseResult.getRootNode();
    Map<ILeafNode, EObject> comments = commentAssociater.associateCommentsWithSemanticEObjects(eObject, singleton(rootNode));
    final ITextRegion result = locationProvider.getFullTextRegion(eObject);
    int start = result.getOffset();
    int end = result.getOffset() + result.getLength();
    for (Entry<ILeafNode, EObject> entry : comments.entrySet()) {
        if (entry.getValue() == eObject) {
            ILeafNode node = entry.getKey();
            if (node.getTotalOffset() < start) {
                start = node.getTotalOffset();
            }
            if (node.getTotalEndOffset() > end) {
                end = node.getTotalEndOffset();
            }
        }
    }
    return new TextRegion(start, end - start);
}