public override (IType ReturnType, bool IsConstant) Invocation(IExpression[] args, SourceRange source, DiagnosticsReport diagnostics)
{
if (args.Length != 2)
{
var err = new ErrorType(source, diagnostics, $"Expected 2 arguments, found {args.Length}");
if (args.Length < 1)
{
return(err, false);
}
}
IType returnType;
var arg1 = args[0];
if (arg1.Type is TypeNameType typeName)
{
if (typeName.TypeDeclaration is EnumDeclaration enumDecl)
{
returnType = enumDecl.CreateType(source);
}
else
{
returnType = new ErrorType(arg1.Source, diagnostics, $"Argument 1: cannot pass non-enum type '{typeName.TypeDeclaration.Name}' to INT_TO_ENUM first parameter");
}
}
else if (arg1.Type is ErrorType)
{
returnType = arg1.Type;
}
else
{
returnType = new ErrorType(arg1.Source, diagnostics, $"Argument 1: cannot pass '{arg1.Type}' to INT_TO_ENUM first parameter, expected enum type name");
}
var isConstant = false;
if (args.Length >= 2)
{
var arg2 = args[1];
isConstant = arg2.IsConstant;
var param2Ty = new IntType(arg2.Source);
if (!param2Ty.CanAssign(arg2.Type !, arg2.IsLValue))
{
diagnostics.AddError($"Argument 2: cannot pass '{arg2.Type}' as second parameter '{TypePrinter.ToString(param2Ty, "value", false)}'", arg2.Source);
}
}
return(returnType, isConstant);
}
