@Override
public IHyperlink[] detectHyperlinks(
ITextViewer textViewer, IRegion region, boolean canShowMultipleHyperlinks) {
if (controller == null || controller.getLastCompilationUnit() == null) {
return null;
} else {
Node node =
findNode(
controller.getLastCompilationUnit(),
controller.getTokens(),
region.getOffset(),
region.getOffset() + region.getLength());
if (node == null) {
return null;
} else {
Node id = getIdentifyingNode(node);
if (id == null) {
return null;
} else {
Referenceable referenceable = getReferencedModel(node);
Backends supportedBackends = supportedBackends();
if (referenceable instanceof Declaration) {
Declaration dec = (Declaration) referenceable;
if (dec.isNative()) {
if (supportedBackends.none()) {
return null;
} else {
referenceable = resolveNative(referenceable, dec, supportedBackends);
}
} else {
if (!supportedBackends.none()) {
return null;
}
}
} else { // Module or package descriptors
if (!supportedBackends.none()) {
return null;
}
}
Node r = getReferencedNode(referenceable);
if (r == null) {
return null;
} else {
return new IHyperlink[] {new CeylonNodeLink(r, id)};
}
}
}
}
}
private Referenceable resolveNative(
Referenceable referenceable, Declaration dec, Backends backends) {
Unit unit = dec.getUnit();
Scope containerToSearchHeaderIn = null;
if (unit instanceof CeylonBinaryUnit) {
CeylonBinaryUnit binaryUnit = (CeylonBinaryUnit) unit;
ExternalPhasedUnit phasedUnit = binaryUnit.getPhasedUnit();
if (phasedUnit != null) {
ExternalSourceFile sourceFile = phasedUnit.getUnit();
if (sourceFile != null) {
String sourceRelativePath =
toJavaString(
binaryUnit
.getCeylonModule()
.toSourceUnitRelativePath(toCeylonString(unit.getRelativePath())));
if (sourceRelativePath != null && sourceRelativePath.endsWith(".ceylon")) {
for (Declaration sourceDecl : sourceFile.getDeclarations()) {
if (sourceDecl.equals(dec)) {
containerToSearchHeaderIn = sourceDecl.getContainer();
break;
}
}
} else {
for (Declaration sourceDecl : sourceFile.getDeclarations()) {
if (sourceDecl.getQualifiedNameString().equals(dec.getQualifiedNameString())) {
containerToSearchHeaderIn = sourceDecl.getContainer();
break;
}
}
}
}
}
} else {
containerToSearchHeaderIn = dec.getContainer();
}
if (containerToSearchHeaderIn != null) {
Declaration headerDeclaration = getNativeHeader(containerToSearchHeaderIn, dec.getName());
if (headerDeclaration == null || !headerDeclaration.isNative()) return null;
if (backends.header()) {
referenceable = headerDeclaration;
} else {
if (headerDeclaration != null) {
referenceable = getNativeDeclaration(headerDeclaration, supportedBackends());
}
}
}
return referenceable;
}
private void addWildcardImport(ImportList il, Declaration dec, Import i) {
if (notOverloaded(dec)) {
String alias = i.getAlias();
if (alias != null) {
Import o = unit.getImport(dec.getName());
if (o != null && o.isWildcardImport()) {
if (o.getDeclaration().equals(dec) || dec.isNativeHeader()) {
// this case only happens in the IDE,
// due to reuse of the Unit
unit.getImports().remove(o);
il.getImports().remove(o);
} else if (!dec.isNative()) {
i.setAmbiguous(true);
o.setAmbiguous(true);
}
}
unit.getImports().add(i);
il.getImports().add(i);
}
}
}