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

Example 41 with IParseResult

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

the class XtextResource method doLoad.

@Override
protected void doLoad(InputStream inputStream, Map<?, ?> options) throws IOException {
    setEncodingFromOptions(options);
    IParseResult result;
    if (entryPoint == null) {
        result = parser.parse(createReader(inputStream));
    } else {
        result = parser.parse(entryPoint, createReader(inputStream));
    }
    updateInternalState(this.parseResult, result);
}

Example 42 with IParseResult

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

the class XtextResource method update.

public void update(int offset, int replacedTextLength, String newText) {
    if (!isLoaded()) {
        throw new IllegalStateException("You can't update an unloaded resource.");
    }
    try {
        isUpdating = true;
        IParseResult oldParseResult = parseResult;
        ReplaceRegion replaceRegion = new ReplaceRegion(new TextRegion(offset, replacedTextLength), newText);
        IParseResult newParseResult;
        ParserRule oldEntryPoint = NodeModelUtils.getEntryParserRule(oldParseResult.getRootNode());
        if (entryPoint == null || entryPoint == oldEntryPoint) {
            newParseResult = parser.reparse(oldParseResult, replaceRegion);
        } else {
            StringBuilder builder = new StringBuilder(oldParseResult.getRootNode().getText());
            replaceRegion.applyTo(builder);
            newParseResult = parser.parse(entryPoint, new StringReader(builder.toString()));
        }
        updateInternalState(oldParseResult, newParseResult);
    } finally {
        isUpdating = false;
    }
}

Example 43 with IParseResult

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

the class AbstractPackratParser method parse.

protected final IParseResult parse(INonTerminalConsumer consumer) {
    if (activeMarker != null)
        throw new IllegalStateException("cannot parse now. Active marker is already assigned.");
    IMarker rootMarker = mark();
    IRootConsumerListener listener = new RootConsumerListener();
    try {
        consumer.consumeAsRoot(listener);
        IParseResult result = getParseResultFactory().createParseResult(activeMarker, input);
        rootMarker.commit();
        if (activeMarker != null)
            throw new IllegalStateException("cannot finish parse: active marker is still present.");
        return result;
    } catch (Exception e) {
        throw new WrappedException(e);
    }
}

Example 44 with IParseResult

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

the class Bug419429Test method replaceAndReparse.

protected void replaceAndReparse(String model, int offset, int length, String change, String expectedReparseRegion) throws Exception {
    IParseResult parseResult = getParseResultAndExpect(model, UNKNOWN_EXPECTATION);
    PartialParsingPointers parsingPointers = getPartialParser().calculatePartialParsingPointers(parseResult, offset, length);
    String reparseRegion = getPartialParser().insertChangeIntoReplaceRegion(parsingPointers.getDefaultReplaceRootNode(), new ReplaceRegion(offset, length, change));
    assertEquals(expectedReparseRegion, reparseRegion);
    final Wrapper<Boolean> unloaded = Wrapper.wrap(Boolean.FALSE);
    getPartialParser().setUnloader(new IReferableElementsUnloader() {

        @Override
        public void unloadRoot(EObject root) {
            unloaded.set(Boolean.TRUE);
        }
    });
    IParseResult partiallyReparse = reparse(parseResult, offset, length, change);
    assertTrue("unloaded", unloaded.get());
    String expectedReparseModel = model.substring(0, offset) + change + model.substring(offset + length);
    assertEquals(expectedReparseModel, partiallyReparse.getRootNode().getText());
    compareWithFullParse(model, offset, length, change);
}

Example 45 with IParseResult

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

the class PartialParserTest method testInsertSlashInSecondNode.

@Test
public void testInsertSlashInSecondNode() throws Exception {
    IParseResult parseResult = resource.getParser().reparse(this.parseResult, new ReplaceRegion(model.indexOf('6'), 0, "/"));
    assertFalse(parseResult.hasSyntaxErrors());
    assertEquals(0, parseResult.getRootNode().getTotalOffset());
    assertSame(resource.getParseResult().getRootNode(), parseResult.getRootNode());
    String newModel = "a.b.c.d: 123;\n" + "e.f.g.h: 45/6;";
    EmfAssert.assertEObjectsEqual(getModel(newModel), resource.getParseResult().getRootASTElement());
}