private ICElementHandle getCElementForName(ICProject project, IIndex index, IName declName)
throws CoreException {
if (declName instanceof IIndexName) {
return IndexUI.getCElementForName(project, index, (IIndexName) declName);
}
if (declName instanceof IASTName) {
IASTName astName = (IASTName) declName;
IBinding binding = astName.resolveBinding();
if (binding != null) {
ITranslationUnit tu = IndexUI.getTranslationUnit(project, astName);
if (tu != null) {
IASTFileLocation loc = astName.getFileLocation();
IRegion region = new Region(loc.getNodeOffset(), loc.getNodeLength());
return CElementHandleFactory.create(tu, binding, astName.isDefinition(), region, 0);
}
}
return null;
}
return null;
}
private boolean navigationFallBack(IASTTranslationUnit ast, IASTName sourceName, NameKind kind) {
// Bug 102643, as a fall-back we look up the selected word in the index.
if (fSelectedText != null && fSelectedText.length() > 0) {
try {
final ICProject project = fTranslationUnit.getCProject();
final char[] name = fSelectedText.toCharArray();
List<ICElement> elems = new ArrayList<ICElement>();
// Bug 252549, search for names in the AST first.
Set<IBinding> primaryBindings = new HashSet<IBinding>();
ASTNameCollector nc = new ASTNameCollector(fSelectedText);
ast.accept(nc);
IASTName[] candidates = nc.getNames();
for (IASTName astName : candidates) {
try {
IBinding b = astName.resolveBinding();
if (b != null && !(b instanceof IProblemBinding)) {
primaryBindings.add(b);
}
} catch (RuntimeException e) {
CUIPlugin.log(e);
}
}
// Search the index, also.
final IndexFilter filter =
IndexFilter.getDeclaredBindingFilter(ast.getLinkage().getLinkageID(), false);
final IIndexBinding[] idxBindings = fIndex.findBindings(name, false, filter, fMonitor);
for (IIndexBinding idxBinding : idxBindings) {
primaryBindings.add(idxBinding);
}
// Search for a macro in the index.
IIndexMacro[] macros = fIndex.findMacros(name, filter, fMonitor);
for (IIndexMacro macro : macros) {
ICElement elem = IndexUI.getCElementForMacro(project, fIndex, macro);
if (elem != null) {
elems.add(elem);
}
}
Collection<IBinding> secondaryBindings;
if (ast instanceof ICPPASTTranslationUnit) {
secondaryBindings = cppRemoveSecondaryBindings(primaryBindings, sourceName);
} else {
secondaryBindings = defaultRemoveSecondaryBindings(primaryBindings, sourceName);
}
// Convert bindings to CElements.
Collection<IBinding> bs = primaryBindings;
for (int k = 0; k < 2; k++) {
for (IBinding binding : bs) {
IName[] names = findNames(fIndex, ast, kind, binding);
// Exclude names of the same kind.
for (int i = 0; i < names.length; i++) {
if (getNameKind(names[i]) == kind) {
names[i] = null;
}
}
names = (IName[]) ArrayUtil.removeNulls(IName.class, names);
convertToCElements(project, fIndex, names, elems);
}
// In case we did not find anything, consider the secondary bindings.
if (!elems.isEmpty()) break;
bs = secondaryBindings;
}
if (navigateCElements(elems)) {
return true;
}
if (sourceName != null && sourceName.isDeclaration()) {
// Select the name at the current location as the last resort.
return navigateToName(sourceName);
}
} catch (CoreException e) {
CUIPlugin.log(e);
}
}
return false;
}