private static PsiSubstitutor inferTypeParametersForStaticFactory(
@NotNull PsiMethod staticFactoryMethod,
PsiNewExpression expression,
final PsiElement parent,
final boolean varargs) {
final PsiExpressionList argumentList = expression.getArgumentList();
if (argumentList != null) {
final MethodCandidateInfo staticFactoryCandidateInfo =
new MethodCandidateInfo(
staticFactoryMethod,
PsiSubstitutor.EMPTY,
false,
false,
argumentList,
parent,
argumentList.getExpressionTypes(),
null) {
@Override
public boolean isVarargs() {
return varargs;
}
@Override
protected PsiElement getParent() {
return parent;
}
@Override
protected PsiElement getMarkerList() {
return parent instanceof PsiNewExpression
? ((PsiNewExpression) parent).getArgumentList()
: super.getMarkerList();
}
};
if (!varargs
&& staticFactoryMethod.isVarArgs()
&& staticFactoryCandidateInfo.getPertinentApplicabilityLevel()
< MethodCandidateInfo.ApplicabilityLevel.FIXED_ARITY) {
return inferTypeParametersForStaticFactory(staticFactoryMethod, expression, parent, true);
}
return staticFactoryCandidateInfo.getSubstitutor();
} else {
return PsiSubstitutor.EMPTY;
}
}
protected int getPertinentApplicabilityLevel(@NotNull MethodCandidateInfo conflict) {
return conflict.getPertinentApplicabilityLevel();
}