private static void checkMethodReference(
PsiMethodReferenceExpression expression,
InspectionManager inspectionManager,
List<ProblemDescriptor> problems) {
final PsiTypeElement qualifierTypeElement = expression.getQualifierType();
if (qualifierTypeElement != null) {
final PsiType psiType = qualifierTypeElement.getType();
if (psiType instanceof PsiClassType && !(((PsiClassType) psiType).isRaw())) {
final JavaResolveResult result = expression.advancedResolve(false);
final PsiElement element = result.getElement();
if (element instanceof PsiTypeParameterListOwner) {
final PsiMethodReferenceExpression copy =
createMethodReference(expression, qualifierTypeElement);
final JavaResolveResult simplifiedResolve = copy.advancedResolve(false);
final PsiElement candidate = simplifiedResolve.getElement();
if (candidate == element) {
final PsiJavaCodeReferenceElement referenceElement =
qualifierTypeElement.getInnermostComponentReferenceElement();
LOG.assertTrue(referenceElement != null, qualifierTypeElement);
final PsiReferenceParameterList parameterList = referenceElement.getParameterList();
LOG.assertTrue(parameterList != null);
final ProblemDescriptor descriptor =
inspectionManager.createProblemDescriptor(
parameterList,
InspectionsBundle.message("inspection.redundant.type.problem.descriptor"),
new MyMethodReferenceFixAction(),
ProblemHighlightType.LIKE_UNUSED_SYMBOL,
false);
problems.add(descriptor);
}
}
}
}
}
private static boolean isInExtendsList(
final RefJavaElement to, final PsiReferenceList extendsList) {
if (extendsList != null) {
final PsiJavaCodeReferenceElement[] referenceElements = extendsList.getReferenceElements();
for (PsiJavaCodeReferenceElement referenceElement : referenceElements) {
final PsiReferenceParameterList parameterList = referenceElement.getParameterList();
if (parameterList != null) {
for (PsiType type : parameterList.getTypeArguments()) {
if (extendsList
.getManager()
.areElementsEquivalent(PsiUtil.resolveClassInType(type), to.getElement())) {
return true;
}
}
}
}
}
return false;
}