@Nullable
@Override
public PsiType fun(GrUnaryExpressionImpl unary) {
final GroovyResolveResult resolveResult =
PsiImplUtil.extractUniqueResult(unary.multiResolve(false));
if (isIncDecNumber(resolveResult)) {
return unary.getOperand().getType();
}
final PsiType substituted =
ResolveUtil.extractReturnTypeFromCandidate(resolveResult, unary, PsiType.EMPTY_ARRAY);
if (substituted != null) {
return substituted;
}
GrExpression operand = unary.getOperand();
if (operand == null) return null;
final PsiType type = operand.getType();
if (TypesUtil.isNumericType(type)) {
return type;
}
return null;
}
@NotNull
@Override
public GroovyResolveResult[] resolve(
@NotNull GrUnaryExpressionImpl unary, boolean incompleteCode) {
final GrExpression operand = unary.getOperand();
if (operand == null) return GroovyResolveResult.EMPTY_ARRAY;
final PsiType type = operand.getType();
if (type == null) return GroovyResolveResult.EMPTY_ARRAY;
return TypesUtil.getOverloadedUnaryOperatorCandidates(
type, unary.getOperationTokenType(), operand, PsiType.EMPTY_ARRAY);
}