Score scoreMostSpecific(IMethodDeclaration d1, IMethodDeclaration d2, bool useInstance)
{
try
{
Context s1 = context.newLocalContext();
d1.registerParameters(s1);
Context s2 = context.newLocalContext();
d2.registerParameters(s2);
IEnumerator <Argument> it1 = methodCall.makeArguments(context, d1).GetEnumerator();
IEnumerator <Argument> it2 = methodCall.makeArguments(context, d2).GetEnumerator();
while (it1.MoveNext() && it2.MoveNext())
{
Argument as1 = it1.Current;
Argument as2 = it2.Current;
IParameter ar1 = d1.getParameters().find(as1.GetName());
IParameter ar2 = d2.getParameters().find(as2.GetName());
if (as1.GetName().Equals(as2.GetName()))
{
// the general case with named arguments
IType t1 = ar1.GetIType(s1);
IType t2 = ar2.GetIType(s2);
// try resolving runtime type
if (useInstance && t1 is CategoryType && t2 is CategoryType)
{
Object value = as1.getExpression().interpret(context); // in the named case as1==as2, so only interpret 1
if (value is IInstance)
{
CategoryType actual = ((IInstance)value).getType();
Score score = actual.scoreMostSpecific(context, (CategoryType)t1, (CategoryType)t2);
if (score != Score.SIMILAR)
{
return(score);
}
}
}
if (t1.isMoreSpecificThan(s2, t2))
{
return(Score.BETTER);
}
if (t2.isMoreSpecificThan(s1, t1))
{
return(Score.WORSE);
}
}
else
{
// specific case for single anonymous argument
Specificity?sp1 = d1.computeSpecificity(s1, ar1, as1, useInstance);
Specificity?sp2 = d2.computeSpecificity(s2, ar2, as2, useInstance);
if (sp1 > sp2)
{
return(Score.BETTER);
}
if (sp2 > sp1)
{
return(Score.WORSE);
}
}
}
}
catch (PromptoError)
{
}
return(Score.SIMILAR);
}
