internal OverloadResult(MemberSymbol symbol, ParameterListSymbol paramList, int nFixedArgs, int nVarArgs, int nMissingArgs)
{
Symbol = symbol;
Parameters = paramList;
FixedArgs = nFixedArgs;
VarArgs = nVarArgs;
MissingArgs = nMissingArgs;
Conversions = new ConversionSymbol[nFixedArgs + nVarArgs + nMissingArgs];
}
static void CheckArguments(MemberSymbol symbol, ParameterListSymbol paramList, ArgList args, ref OverloadResult ovRes, BindOptions options)
{
var parameters = paramList.Parameters;
var nParams = parameters.Length;
var fixedArgs = args.Args.Count;
var varArgs = 0;
var missingArgs = 0;
bool hasExtraArgs = false;
if (nParams <= fixedArgs)
{
if (paramList.HasParamArray)
{
varArgs = fixedArgs - (nParams - 1);
fixedArgs = nParams - 1;
}
else if (nParams < fixedArgs)
{
hasExtraArgs = true;
}
}
else if (nParams > fixedArgs)
{
if (paramList.HasParamArray)
{
missingArgs = nParams - fixedArgs - 1;
}
else
{
missingArgs = nParams - fixedArgs;
}
}
if (!hasExtraArgs)
{
var ovr = OverloadResult.Create(symbol, paramList, fixedArgs, varArgs, missingArgs);
for (int p = 0; p < fixedArgs; p++)
{
ovr.ArgConversion(p, ArgumentConversion(args.Args[p], parameters[p], options));
}
if (missingArgs > 0)
{
for (int p = fixedArgs; p < fixedArgs + missingArgs; p++)
{
ovr.ArgConversion(p, ArgumentConversion(null, parameters[p], options));
}
}
else if (paramList.HasParamArray)
{
var varArgType = FindType(parameters[fixedArgs].ParameterType.GetElementType());
for (int p = fixedArgs; p < fixedArgs + varArgs; p++)
{
ovr.ArgConversion(p, VarArgumentConversion(args.Args[p], varArgType, options));
}
}
ovRes = ovr.Better(ovRes);
}
}
internal static OverloadResult Create(MemberSymbol symbol, ParameterListSymbol paramList, int nFixedArgs, int nVarArgs, int nMissingArgs)
{
return(new OverloadResult(symbol, paramList, nFixedArgs, nVarArgs, nMissingArgs));
}