/**
* Initializes a new SourceNodeRangeReader.
*
* @param sourceLocation the source location
* @param start the start (inclusive) of the range to read
* @param end the end (exclusive) of the range to read
* @param skipHandler an object that will determine characters to skip while reading a source
* node. Specify <code>null</code> to skip no characters.
*/
public SourceNodeRangeReader(
@Nonnull SourceLocation sourceLocation,
int start,
int end,
@CheckForNull SkipHandler skipHandler) {
if (sourceLocation == null) {
throw new NullPointerException("sourceLocation");
}
this.sourceLocation = sourceLocation;
start = restrictStartBound(start, sourceLocation);
end = restrictEndBound(start, end, sourceLocation);
final int sourceLocationTextPosition = sourceLocation.getTextPosition();
this.reader = new DocumentReader(sourceLocation.getFile().getText());
this.rangedReader =
new RangedCharSequenceReader(
this.reader, start + sourceLocationTextPosition, end + sourceLocationTextPosition);
if (skipHandler == null) {
skipHandler = new SkipHandler();
}
this.skipHandler = skipHandler;
skipHandler.setReader(this);
this.checkForCodePointsToSkip();
}
private static int restrictEndBound(int start, int end, @Nonnull SourceLocation sourceLocation) {
if (end < start) {
return start;
}
if (end > sourceLocation.getSourceNode().getLength()) {
return sourceLocation.getSourceNode().getLength();
}
return end;
}
private static int restrictStartBound(int start, @Nonnull SourceLocation sourceLocation) {
if (start < 0) {
return 0;
}
if (start > sourceLocation.getSourceNode().getLength()) {
return sourceLocation.getSourceNode().getLength();
}
return start;
}
public void store(final IEclipsePreferences root) throws BackingStoreException {
CodePathLocation.clearAll(root);
root.put(ProjectPreferencesConstants.OUTPUT, output.toPortableString());
if (requiredRuntimeVersion != null) {
root.put(
ProjectPreferencesConstants.REQUIRED_BACKEND_VERSION, requiredRuntimeVersion.toString());
}
root.put(ProjectPreferencesConstants.INCLUDES, PathSerializer.packList(includes));
final Preferences srcNode = root.node(ProjectPreferencesConstants.SOURCES);
for (final SourceLocation loc : sources) {
loc.store((IEclipsePreferences) srcNode.node(Integer.toString(loc.getId())));
}
root.flush();
}
public ModelRuleDescriptor toDescriptor(SourceLocation sourceLocation, ModelPath modelPath) {
return sourceLocation.asDescriptor("model." + modelPath);
}