@Override
@NotNull
public MethodSignature getSignature(@NotNull PsiSubstitutor substitutor) {
return MethodSignatureBackedByPsiMethod.create(this, substitutor);
}
private static Map<MethodSignature, HierarchicalMethodSignature> buildMethodHierarchy(
PsiClass aClass,
PsiSubstitutor substitutor,
final boolean includePrivates,
final Set<PsiClass> visited,
boolean isInRawContext) {
Map<MethodSignature, HierarchicalMethodSignature> result =
new LinkedHashMap<MethodSignature, HierarchicalMethodSignature>();
final Map<MethodSignature, List<PsiMethod>> sameParameterErasureMethods =
new THashMap<MethodSignature, List<PsiMethod>>(
MethodSignatureUtil.METHOD_PARAMETERS_ERASURE_EQUALITY);
Map<MethodSignature, HierarchicalMethodSignatureImpl> map =
new THashMap<MethodSignature, HierarchicalMethodSignatureImpl>(
new TObjectHashingStrategy<MethodSignature>() {
@Override
public int computeHashCode(MethodSignature signature) {
return MethodSignatureUtil.METHOD_PARAMETERS_ERASURE_EQUALITY.computeHashCode(
signature);
}
@Override
public boolean equals(MethodSignature o1, MethodSignature o2) {
if (!MethodSignatureUtil.METHOD_PARAMETERS_ERASURE_EQUALITY.equals(o1, o2))
return false;
List<PsiMethod> list = sameParameterErasureMethods.get(o1);
boolean toCheckReturnType = list != null && list.size() > 1;
if (!toCheckReturnType) return true;
PsiType returnType1 =
((MethodSignatureBackedByPsiMethod) o1).getMethod().getReturnType();
PsiType returnType2 =
((MethodSignatureBackedByPsiMethod) o2).getMethod().getReturnType();
if (returnType1 == null && returnType2 == null) return true;
if (returnType1 == null || returnType2 == null) return false;
PsiType erasure1 =
TypeConversionUtil.erasure(o1.getSubstitutor().substitute(returnType1));
PsiType erasure2 =
TypeConversionUtil.erasure(o2.getSubstitutor().substitute(returnType2));
return erasure1.equals(erasure2);
}
});
for (PsiMethod method : aClass.getMethods()) {
if (!method.isValid()) {
throw new PsiInvalidElementAccessException(
method, "class.valid=" + aClass.isValid() + "; name=" + method.getName());
}
if (!includePrivates && method.hasModifierProperty(PsiModifier.PRIVATE)) continue;
final MethodSignatureBackedByPsiMethod signature =
MethodSignatureBackedByPsiMethod.create(method, substitutor, isInRawContext);
HierarchicalMethodSignatureImpl newH = new HierarchicalMethodSignatureImpl(signature);
List<PsiMethod> list = sameParameterErasureMethods.get(signature);
if (list == null) {
list = new SmartList<PsiMethod>();
sameParameterErasureMethods.put(signature, list);
}
list.add(method);
LOG.assertTrue(newH.getMethod().isValid());
result.put(signature, newH);
map.put(signature, newH);
}
for (PsiClassType superType : aClass.getSuperTypes()) {
PsiClassType.ClassResolveResult superTypeResolveResult = superType.resolveGenerics();
PsiClass superClass = superTypeResolveResult.getElement();
if (superClass == null) continue;
if (!visited.add(superClass)) continue; // cyclic inheritance
final PsiSubstitutor superSubstitutor = superTypeResolveResult.getSubstitutor();
PsiSubstitutor finalSubstitutor =
obtainFinalSubstitutor(superClass, superSubstitutor, substitutor, isInRawContext);
final boolean isInRawContextSuper =
(isInRawContext || PsiUtil.isRawSubstitutor(superClass, superSubstitutor))
&& superClass.getTypeParameters().length != 0;
Map<MethodSignature, HierarchicalMethodSignature> superResult =
buildMethodHierarchy(superClass, finalSubstitutor, false, visited, isInRawContextSuper);
visited.remove(superClass);
List<Pair<MethodSignature, HierarchicalMethodSignature>> flattened =
new ArrayList<Pair<MethodSignature, HierarchicalMethodSignature>>();
for (Map.Entry<MethodSignature, HierarchicalMethodSignature> entry : superResult.entrySet()) {
HierarchicalMethodSignature hms = entry.getValue();
MethodSignature signature = entry.getKey();
PsiClass containingClass = hms.getMethod().getContainingClass();
List<HierarchicalMethodSignature> supers =
new ArrayList<HierarchicalMethodSignature>(hms.getSuperSignatures());
for (HierarchicalMethodSignature aSuper : supers) {
PsiClass superContainingClass = aSuper.getMethod().getContainingClass();
if (containingClass != null
&& superContainingClass != null
&& !containingClass.isInheritor(superContainingClass, true)) {
// methods must be inherited from unrelated classes, so flatten hierarchy here
// class C implements SAM1, SAM2 { void methodimpl() {} }
// hms.getSuperSignatures().remove(aSuper);
flattened.add(
new Pair<MethodSignature, HierarchicalMethodSignature>(signature, aSuper));
}
}
putInMap(aClass, result, map, hms, signature);
}
for (Pair<MethodSignature, HierarchicalMethodSignature> pair : flattened) {
putInMap(aClass, result, map, pair.second, pair.first);
}
}
for (Map.Entry<MethodSignature, HierarchicalMethodSignatureImpl> entry : map.entrySet()) {
HierarchicalMethodSignatureImpl hierarchicalMethodSignature = entry.getValue();
MethodSignature methodSignature = entry.getKey();
if (result.get(methodSignature) == null
&& PsiUtil.isAccessible(
aClass.getProject(), hierarchicalMethodSignature.getMethod(), aClass, aClass)) {
LOG.assertTrue(hierarchicalMethodSignature.getMethod().isValid());
result.put(methodSignature, hierarchicalMethodSignature);
}
}
return result;
}