public static void AddVariant(
string name,
mysFunction variant,
mysSymbolSpace global
)
{
mysSymbol symbol = new mysSymbol( name );
mysFunctionGroup fg;
if ( !global.Defined( symbol ) ) {
global.Define(
symbol,
new mysToken( new mysFunctionGroup() )
);
}
fg = global
.GetValue( new mysSymbol( name ) )
.Value as mysFunctionGroup
;
fg.Variants.Add( variant );
}
bool judgeVariant(
mysFunction variant,
List<mysToken> arguments,
Stack<mysSymbolSpace> spaceStack
)
{
// lh: make this a bit cleverer later to handle variadics.
if ( variant.SignatureLength != arguments.Count ) {
return false;
}
if ( variant.Signature
.Zip(
arguments,
(type, token) => typeCheck( type, token, spaceStack )
)
// if the zip of our two collections is less than the count
// we started with, at least one given token did not match
// the sig, so we remove that variant from the potential
// ones.
.Where( p => p )
.Count() != arguments.Count
) {
return false;
}
return true;
}