public static boolean hasReceiver(
PsiType[] parameterTypes,
QualifierResolveResult qualifierResolveResult,
PsiMethodReferenceExpression methodRef) {
if (parameterTypes.length > 0
&& !methodRef.isConstructor()
&& isReceiverType(
parameterTypes[0],
qualifierResolveResult.getContainingClass(),
qualifierResolveResult.getSubstitutor())
&& isStaticallyReferenced(methodRef)) {
return true;
}
return false;
}
@Nullable
public static PsiType getQualifierType(PsiMethodReferenceExpression expression) {
PsiType qualifierType = null;
final PsiTypeElement typeElement = expression.getQualifierType();
if (typeElement != null) {
qualifierType = typeElement.getType();
} else {
final PsiElement qualifier = expression.getQualifier();
if (qualifier instanceof PsiExpression) {
qualifierType = ((PsiExpression) qualifier).getType();
}
}
if (qualifierType == null) {
final QualifierResolveResult qualifierResolveResult = getQualifierResolveResult(expression);
final PsiClass containingClass = qualifierResolveResult.getContainingClass();
if (containingClass == null) {
return null;
}
qualifierType =
JavaPsiFacade.getElementFactory(expression.getProject()).createType(containingClass);
}
return qualifierType;
}