// Returns true if there were any applicable candidates.
private bool CandidateOperators(ArrayBuilder <UnaryOperatorSignature> operators, BoundExpression operand, ArrayBuilder <UnaryOperatorAnalysisResult> results, ref HashSet <DiagnosticInfo> useSiteDiagnostics)
{
bool anyApplicable = false;
foreach (var op in operators)
{
var conversion = Conversions.ClassifyConversionFromExpression(operand, op.OperandType, ref useSiteDiagnostics);
if (conversion.IsImplicit)
{
anyApplicable = true;
results.Add(UnaryOperatorAnalysisResult.Applicable(op, conversion));
}
else
{
results.Add(UnaryOperatorAnalysisResult.Inapplicable(op, conversion));
}
}
return(anyApplicable);
}
private void UnaryOperatorEasyOut(UnaryOperatorKind kind, BoundExpression operand, UnaryOperatorOverloadResolutionResult result)
{
var operandType = operand.Type;
if ((object)operandType == null)
{
return;
}
var easyOut = UnopEasyOut.OpKind(kind, operandType);
if (easyOut == UnaryOperatorKind.Error)
{
return;
}
UnaryOperatorSignature signature = this.Compilation.builtInOperators.GetSignature(easyOut);
Conversion?conversion = Conversions.FastClassifyConversion(operandType, signature.OperandType);
Debug.Assert(conversion.HasValue && conversion.Value.IsImplicit);
result.Results.Add(UnaryOperatorAnalysisResult.Applicable(signature, conversion.Value));
}