@NotNull
public static PsiTypeParameter[] getTypeParameters(@NotNull PsiTypeParameterListOwner owner) {
final PsiTypeParameterList typeParameterList = owner.getTypeParameterList();
if (typeParameterList != null) {
return typeParameterList.getTypeParameters();
}
return PsiTypeParameter.EMPTY_ARRAY;
}
public static int getTypeParameterIndex(
@NotNull PsiTypeParameter typeParameter, @NotNull PsiTypeParameterList typeParameterList) {
PsiTypeParameter[] typeParameters = typeParameterList.getTypeParameters();
for (int i = 0; i < typeParameters.length; i++) {
if (typeParameter.equals(typeParameters[i])) return i;
}
LOG.assertTrue(false);
return -1;
}
public static boolean hasTypeParameters(@NotNull PsiTypeParameterListOwner owner) {
final PsiTypeParameterList typeParameterList = owner.getTypeParameterList();
return typeParameterList != null && typeParameterList.getTypeParameters().length != 0;
}