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new parser result not assigned after partial parsing

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dhubner 2008-07-02 13:02:31 +00:00
parent 645d1565bd
commit 71ce9fc657
1 changed files with 58 additions and 55 deletions
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113
plugins/org.eclipse.xtext/src/org/eclipse/xtext/resource/XtextResource.java
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@ -33,67 +33,70 @@ import org.eclipse.xtext.service.Inject;
* @author Jan Köhnlein
*/
public class XtextResource extends ResourceImpl {
@Inject
private IParser parser;
@Inject
private IParser parser;
@Inject
private IElementFactory elementFactory;
@Inject
private IParseTreeConstructor parsetreeConstructor;
@Inject
private IElementFactory elementFactory;
@Inject
private IParseTreeConstructor parsetreeConstructor;
private IParseResult parse;
public XtextResource(URI uri) {
super(uri);
}
public IParseResult getParseResult() {
return parse;
}
public void update(int offset, int length, String change) {
parser.reparse(parse.getRootNode(), offset, length, change);
}
public XtextResource(URI uri) {
super(uri);
}
@Override
protected void doLoad(InputStream inputStream, Map<?, ?> options) throws IOException {
getContents().clear();
parse = parser.parse(inputStream, elementFactory);
if (parse != null) {
EObject rootElement = parse.getRootASTElement();
if (rootElement != null) {
getContents().add(rootElement);
}
}
}
public IParseResult getParseResult() {
return parse;
}
@Override
public void doSave(OutputStream outputStream, Map<?, ?> options) throws IOException {
if (contents.size() > 1) {
throw new IllegalStateException("Xtext resource cannot contain multiple root elements");
}
if (!contents.isEmpty()) {
EObject rootElement = contents.get(0);
parsetreeConstructor.update(rootElement);
NodeAdapter rootNodeAdapter = getNodeAdapter(rootElement);
if (rootNodeAdapter != null) {
CompositeNode rootNode = rootNodeAdapter.getParserNode();
String serialize = rootNode.serialize();
outputStream.write(serialize.getBytes());
}
}
}
public void update(int offset, String change) {
CompositeNode rootNode = parse.getRootNode();
int length = change.length();
int documentGrowth = length - rootNode.length();
int originalLength = length - documentGrowth;
parse = parser.reparse(rootNode, offset, originalLength, change);
}
private NodeAdapter getNodeAdapter(EObject object) {
EList<Adapter> adapters = object.eAdapters();
for (Adapter adapter : adapters) {
if (adapter.isAdapterForType(AbstractNode.class)) {
return (NodeAdapter) adapter;
}
}
return null;
}
@Override
protected void doLoad(InputStream inputStream, Map<?, ?> options) throws IOException {
getContents().clear();
parse = parser.parse(inputStream, elementFactory);
if (parse != null) {
EObject rootElement = parse.getRootASTElement();
if (rootElement != null) {
getContents().add(rootElement);
}
}
}
@Override
public void doSave(OutputStream outputStream, Map<?, ?> options) throws IOException {
if (contents.size() > 1) {
throw new IllegalStateException("Xtext resource cannot contain multiple root elements");
}
if (!contents.isEmpty()) {
EObject rootElement = contents.get(0);
parsetreeConstructor.update(rootElement);
NodeAdapter rootNodeAdapter = getNodeAdapter(rootElement);
if (rootNodeAdapter != null) {
CompositeNode rootNode = rootNodeAdapter.getParserNode();
String serialize = rootNode.serialize();
outputStream.write(serialize.getBytes());
}
}
}
private NodeAdapter getNodeAdapter(EObject object) {
EList<Adapter> adapters = object.eAdapters();
for (Adapter adapter : adapters) {
if (adapter.isAdapterForType(AbstractNode.class)) {
return (NodeAdapter) adapter;
}
}
return null;
}
}