private final void processNode(SemanticToken token, DartNode node) {
token.update(node);
token.attachSource(fSourceViewer.getDocument());
// sometimes node has wrong source range; log problem
if (token.getSource() == null) {
IDocument document = fSourceViewer.getDocument();
if (node != null && document != null) {
SourceInfo sourceInfo = node.getSourceInfo();
if (sourceInfo != null) {
DartToolsPlugin.log(
"Bad node: "
+ node.getClass().getName()
+ " offset:"
+ sourceInfo.getOffset()
+ " len:"
+ sourceInfo.getLength()
+ " in document: "
+ document.getLength());
}
}
return;
}
// try SemanticHighlighting instances
for (int i = 0, n = fJobSemanticHighlightings.length; i < n; i++) {
if (fJobHighlightings[i].isEnabled()) {
SemanticHighlighting semanticHighlighting = fJobSemanticHighlightings[i];
// try multiple positions
{
List<SourceRange> ranges = semanticHighlighting.consumesMulti(token);
if (ranges != null) {
for (SourceRange range : ranges) {
int offset = range.getOffset();
int length = range.getLength();
if (offset > -1 && length > 0) {
fCollector.addPosition(offset, length, fJobHighlightings[i]);
}
}
break;
}
}
// try single position
boolean consumes;
if (node instanceof DartIdentifier) {
consumes = semanticHighlighting.consumesIdentifier(token);
} else {
consumes = semanticHighlighting.consumes(token);
}
if (consumes) {
int offset = node.getSourceInfo().getOffset();
int length = node.getSourceInfo().getLength();
if (offset > -1 && length > 0) {
fCollector.addPosition(offset, length, fJobHighlightings[i]);
}
break;
}
}
}
token.clear();
}
private static boolean isContainedBy(DartNode node, DartNode containedByNode) {
SourceInfo nodeSource = node.getSourceInfo();
SourceInfo containedBySource = containedByNode.getSourceInfo();
int nodeEnd = nodeSource.getOffset() + nodeSource.getLength();
int containedByEnd = containedBySource.getOffset() + containedBySource.getLength();
return nodeSource.getOffset() >= containedBySource.getOffset() && nodeEnd <= containedByEnd;
}