/** Returns definitions of bindings referenced by implicit name at the given location. */
private IName[] findImplicitTargets(
IASTTranslationUnit ast, IASTNodeSelector nodeSelector, int offset, int length)
throws CoreException {
IName[] definitions = IName.EMPTY_ARRAY;
IASTName firstName = nodeSelector.findEnclosingImplicitName(offset, length);
if (firstName != null) {
IASTImplicitNameOwner owner = (IASTImplicitNameOwner) firstName.getParent();
for (IASTImplicitName name : owner.getImplicitNames()) {
if (((ASTNode) name).getOffset() == ((ASTNode) firstName).getOffset()) {
IBinding binding = name.resolveBinding(); // Guaranteed to resolve.
IName[] declNames = findDeclNames(ast, NameKind.REFERENCE, binding);
definitions = ArrayUtil.addAll(definitions, declNames);
}
}
}
return ArrayUtil.trim(definitions);
}
private static IBinding[] getContext(IASTName name) {
IBinding[] accessibilityContext = IBinding.EMPTY_BINDING_ARRAY;
for (IBinding binding = CPPVisitor.findEnclosingFunctionOrClass(name);
binding != null;
binding = binding.getOwner()) {
if (binding instanceof ICPPMethod
||
// Definition of an undeclared method.
binding instanceof IProblemBinding
&& ((IProblemBinding) binding).getID()
== IProblemBinding.SEMANTIC_MEMBER_DECLARATION_NOT_FOUND) {
continue;
}
if (binding instanceof ICPPFunction || binding instanceof ICPPClassType) {
accessibilityContext = ArrayUtil.append(accessibilityContext, binding);
}
}
return ArrayUtil.trim(accessibilityContext);
}
@Override
public IBinding[] getDelegates() {
if (delegates == null) {
delegates = new IBinding[1];
int i = 0;
PDOMCPPUsingDeclaration alias = this;
try {
do {
IBinding delegate = alias.getBinding();
if (delegate != null) {
delegates = ArrayUtil.appendAt(IBinding.class, delegates, i++, delegate);
}
} while ((alias = alias.getNext()) != null);
} catch (CoreException e) {
CCorePlugin.log(e);
}
delegates = ArrayUtil.trim(IBinding.class, delegates);
}
return delegates;
}
public IStatus runOnAST(ILanguage lang, IASTTranslationUnit ast) throws CoreException {
if (ast == null) {
return Status.OK_STATUS;
}
int selectionStart = fTextSelection.getOffset();
int selectionLength = fTextSelection.getLength();
final IASTNodeSelector nodeSelector = ast.getNodeSelector(null);
IASTName sourceName = nodeSelector.findEnclosingName(selectionStart, selectionLength);
IName[] implicitTargets =
findImplicitTargets(ast, nodeSelector, selectionStart, selectionLength);
if (sourceName == null) {
if (implicitTargets.length > 0) {
if (navigateViaCElements(fTranslationUnit.getCProject(), fIndex, implicitTargets))
return Status.OK_STATUS;
}
} else {
boolean found = false;
final IASTNode parent = sourceName.getParent();
if (parent instanceof IASTPreprocessorIncludeStatement) {
openInclude(((IASTPreprocessorIncludeStatement) parent));
return Status.OK_STATUS;
}
NameKind kind = getNameKind(sourceName);
IBinding b = sourceName.resolveBinding();
IBinding[] bindings = new IBinding[] {b};
if (b instanceof IProblemBinding) {
IBinding[] candidateBindings = ((IProblemBinding) b).getCandidateBindings();
if (candidateBindings.length != 0) {
bindings = candidateBindings;
}
} else if (kind == NameKind.DEFINITION && b instanceof IType) {
// Don't navigate away from a type definition.
// Select the name at the current location instead.
navigateToName(sourceName);
return Status.OK_STATUS;
}
IName[] targets = IName.EMPTY_ARRAY;
String filename = ast.getFilePath();
for (IBinding binding : bindings) {
if (binding != null && !(binding instanceof IProblemBinding)) {
IName[] names = findDeclNames(ast, kind, binding);
for (final IName name : names) {
if (name != null) {
if (name instanceof IIndexName
&& filename.equals(((IIndexName) name).getFileLocation().getFileName())) {
// Exclude index names from the current file.
} else if (areOverlappingNames(name, sourceName)) {
// Exclude the current location.
} else if (binding instanceof IParameter) {
if (isInSameFunction(sourceName, name)) {
targets = ArrayUtil.append(targets, name);
}
} else if (binding instanceof ICPPTemplateParameter) {
if (isInSameTemplate(sourceName, name)) {
targets = ArrayUtil.append(targets, name);
}
} else {
targets = ArrayUtil.append(targets, name);
}
}
}
}
}
targets = ArrayUtil.trim(ArrayUtil.addAll(targets, implicitTargets));
if (navigateViaCElements(fTranslationUnit.getCProject(), fIndex, targets)) {
found = true;
} else {
// Leave old method as fallback for local variables, parameters and
// everything else not covered by ICElementHandle.
found = navigateOneLocation(targets);
}
if (!found && !navigationFallBack(ast, sourceName, kind)) {
fAction.reportSymbolLookupFailure(new String(sourceName.toCharArray()));
}
return Status.OK_STATUS;
}
// No enclosing name, check if we're in an include statement
IASTNode node = nodeSelector.findEnclosingNode(selectionStart, selectionLength);
if (node instanceof IASTPreprocessorIncludeStatement) {
openInclude((IASTPreprocessorIncludeStatement) node);
return Status.OK_STATUS;
} else if (node instanceof IASTPreprocessorFunctionStyleMacroDefinition) {
IASTPreprocessorFunctionStyleMacroDefinition mdef =
(IASTPreprocessorFunctionStyleMacroDefinition) node;
for (IASTFunctionStyleMacroParameter par : mdef.getParameters()) {
String parName = par.getParameter();
if (parName.equals(fSelectedText)) {
if (navigateToLocation(par.getFileLocation())) {
return Status.OK_STATUS;
}
}
}
}
if (!navigationFallBack(ast, null, NameKind.REFERENCE)) {
fAction.reportSelectionMatchFailure();
}
return Status.OK_STATUS;
}
@Override
public IASTPointerOperator[] getPointerOperators() {
if (pointerOps == null) return IASTPointerOperator.EMPTY_ARRAY;
pointerOps = ArrayUtil.trim(IASTPointerOperator.class, pointerOps);
return pointerOps;
}