private OverloadResolutionResult <IndexerSymbolSignature> LookupIndexer(TypeSymbol type, ImmutableArray <TypeSymbol> argumentTypes)
{
var signatures = from m in LookupIndexer(type)
select new IndexerSymbolSignature(m);
return(OverloadResolution.Perform(signatures, argumentTypes));
}
private OverloadResolutionResult <FunctionSymbolSignature> LookupFunction(SyntaxToken name, ImmutableArray <TypeSymbol> argumentTypes)
{
var signatures = from f in LookupSymbols <FunctionSymbol>(name)
where name.Text == f.Name
select new FunctionSymbolSignature(f);
return(OverloadResolution.Perform(signatures, argumentTypes));
}
private static OverloadResolutionResult <BinaryOperatorSignature> ResolveOverloads(BinaryOperatorKind kind, TypeSymbol leftOperandType, TypeSymbol rightOperandType)
{
var builtInSignatures = GetBuiltInSignatures(kind);
if (BothTypesBuiltIn(leftOperandType, rightOperandType))
{
return(OverloadResolution.Perform(builtInSignatures, leftOperandType, rightOperandType));
}
return(OverloadResolutionResult <BinaryOperatorSignature> .None);
}
private static OverloadResolutionResult <UnaryOperatorSignature> ResolveOverloads(UnaryOperatorKind kind, TypeSymbol operandType)
{
var builtInSignatures = GetBuiltInSignatures(kind);
if (TypeBuiltIn(operandType))
{
return(OverloadResolution.Perform(builtInSignatures, operandType));
}
return(OverloadResolutionResult <UnaryOperatorSignature> .None);
}
private OverloadResolutionResult <FunctionSymbolSignature> LookupMethod(TypeSymbol type, SyntaxToken name, ImmutableArray <TypeSymbol> argumentTypes)
{
if (name == null)
{
throw new ArgumentNullException(nameof(name));
}
var signatures = from m in LookupMethod(type, name)
select new FunctionSymbolSignature(m);
return(OverloadResolution.Perform(signatures, argumentTypes));
}
private OverloadResolutionResult <FunctionSymbolSignature> LookupNumericConstructor(TypeSymbol type, ImmutableArray <TypeSymbol> argumentTypes)
{
var signatures = IntrinsicNumericConstructors.AllFunctions
.Where(x => x.ReturnType.Equals(type))
.Select(x => new FunctionSymbolSignature(x));
var resolutionResult = OverloadResolution.Perform(signatures, argumentTypes);
if (type.Kind == SymbolKind.IntrinsicMatrixType && resolutionResult.Selected == null)
{
// If no existing signatures for matrix constructor, then as long as we have the correct arguments, create a new function symbol on-the-fly.
// This is to handle the MANY overloads of matrix constructor functions, which are too many to create and store statically.
if (argumentTypes.All(x => x is IntrinsicNumericTypeSymbol))
{
var matrixType = (IntrinsicMatrixTypeSymbol)type;
var totalScalars = matrixType.Rows * matrixType.Cols;
var numericArgumentTypes = argumentTypes
.Cast <IntrinsicNumericTypeSymbol>()
.ToImmutableArray();
var totalScalarsInArgs = numericArgumentTypes
.Sum(x => x.GetNumElements());
if (totalScalars == totalScalarsInArgs)
{
signatures = new[]
{
new FunctionSymbol(matrixType.Name, string.Empty, null, matrixType,
f => numericArgumentTypes.Select((t, i) => new ParameterSymbol($"arg{i}", string.Empty, f, t.GetNumericTypeWithScalarType(matrixType.ScalarType))).ToArray(),
isNumericConstructor: true)
}.Select(x => new FunctionSymbolSignature(x));
resolutionResult = OverloadResolution.Perform(signatures, argumentTypes);
}
}
}
return(resolutionResult);
}