public object Convert(AphidInteropMethodArg arg, Type[] genericArguments) =>
arg.ImplicitConversionOperator != null?
Convert(arg.ImplicitConversionOperator, arg.Argument) :
arg.ExplicitConversionOperator != null?
Convert(arg.ExplicitConversionOperator, arg.Argument) :
arg.IsValueTypeEnumerable &&
genericArguments.Length >= 1 &&
!genericArguments[0].IsValueType ?
BoxValueTypeEnumerable((IEnumerable)arg.Argument) :
Convert(arg.TargetType, arg.Argument, genericArguments);
public AphidConversionInfo(
AphidInteropMethodArg interopArg,
bool canConvert,
Type[] genericArguments)
{
InteropArg = interopArg;
CanConvert = canConvert;
GenericArguments = genericArguments;
InteropArg.IsValueTypeEnumerable =
GenericArguments.Length == 1 &&
GenericArguments[0].IsValueType &&
InteropArg.TargetType.GetGenericTypeDefinition() == typeof(IEnumerable <>);
}
public AphidConversionInfo CanConvert(
AphidInteropMethodArg interopArg,
object val,
Type target)
{
Type valType;
if (val == null)
{
return(new AphidConversionInfo(
interopArg,
!target.IsPrimitive && !target.IsEnum,
new Type[0]));
}
else if ((valType = val.GetType()) == typeof(AphidFunction) &&
target.IsDerivedFrom(typeof(Delegate)))
{
var isGeneric = target.IsGenericType;
if (isGeneric)
{
var targetGenericArgs = target.GetGenericArguments();
//var valGenericArgs = valType.GetGenericArguments();
//if (targetGenericArgs.Length > 0 && valGenericArgs.Length == 0)
//{
for (var i = 0; i < targetGenericArgs.Length; i++)
{
if (targetGenericArgs[i].IsGenericParameter)
{
targetGenericArgs[i] = typeof(object);
}
}
return(new AphidConversionInfo(
interopArg,
true,
targetGenericArgs));
//}
throw Interpreter.CreateRuntimeException(
"Converting from generic delegate {0} to {1} not yet supported.",
valType,
target);
}
return(new AphidConversionInfo(interopArg, true, Array.Empty <Type>()));
}
else if (val is AphidInteropMember &&
target.IsDerivedFrom(typeof(Delegate)))
{
//var methods = Array.FindAll(
// m.Members,
// x => x.MemberType == MemberTypes.Method);
//if (methods.Length == 0)
//{
// var callable = Array.FindAll(
// m.Members,
// x => ((x.MemberType == MemberTypes.Field &&
// ((FieldInfo)x).FieldType.IsDerivedFrom<Delegate>()) ||
// x.MemberType == MemberTypes.Property &&
// ((PropertyInfo)x).PropertyType.IsDerivedFrom<Delegate>()));
// if (callable.Length == 0)
// {
// throw Interpreter.CreateRuntimeException(
// "Converting from interop member {0} to delegate {1} not supported.",
// valType,
// target);
// }
//}
var isGeneric = target.IsGenericType;
if (isGeneric)
{
var targetGenericArgs = target.GetGenericArguments();
//var valGenericArgs = valType.GetGenericArguments();
//if (targetGenericArgs.Length > 0 && valGenericArgs.Length == 0)
//{
for (var i = 0; i < targetGenericArgs.Length; i++)
{
if (targetGenericArgs[i].IsGenericParameter)
{
targetGenericArgs[i] = typeof(object);
}
}
return(new AphidConversionInfo(
interopArg,
true,
targetGenericArgs));
//}
throw Interpreter.CreateRuntimeException(
"Converting from generic delegate {0} to {1} not yet supported.",
valType,
target);
}
return(new AphidConversionInfo(interopArg, true, Array.Empty <Type>()));
}
else
{
var genericArguments = new List <Type>();
var canConvert =
valType == target ? true :
interopArg.ImplicitConversionOperator != null ? true :
valType == typeof(decimal) ? CanConvertOrBoxDecimal((decimal)val, target) :
//valType == typeof(sbyte) ? CanConvertOrBoxSByte((decimal)val, target) :
//valType == typeof(short) ? CanConvertOrBoxShort((decimal)val, target) :
//valType == typeof(int) ? CanConvertOrBoxInt((decimal)val, target) :
//valType == typeof(long) ? CanConvertOrBoxLong((decimal)val, target) :
//valType == typeof(byte) ? CanConvertOrBoxByte((decimal)val, target) :
//valType == typeof(ushort) ? CanConvertOrBoxUShort((decimal)val, target) :
//valType == typeof(uint) ? CanConvertOrBoxUInt((decimal)val, target) :
//valType == typeof(ulong) ? CanConvertOrBoxULong((decimal)val, target) :
//valType == typeof(float) ? CanConvertOrBoxFloat((decimal)val, target) :
//valType == typeof(double) ? CanConvertOrBoxDouble((decimal)val, target) :
valType == typeof(string) &&
(target == typeof(char[]) ||
(target == typeof(char) && ((string)val).Length == 1)) ? true :
valType.IsDerivedFromOrImplements(target, genericArguments) ? true :
target.IsArray ? CanConvertArray(val, valType, target) :
interopArg.ExplicitConversionOperator != null ? true :
target == typeof(string) ? true :
false;
return(new AphidConversionInfo(
interopArg,
canConvert,
genericArguments.ToArray()));
}
}
