private JsNode VisitConversion(ResolveResult input, Conversion conversion, IType conversionType)
{
////TODO: HACK: https://github.com/icsharpcode/NRefactory/issues/183
//var isImplicit = res.Conversion.IsImplicit;
//if (!isImplicit && res.Conversion.IsExplicit && res.Conversion.Method != null && res.Conversion.Method.Name != null && res.Conversion.Method.Name.Contains("Implicit"))
// isImplicit = true;
if (conversion.IsMethodGroupConversion)
{
}
else if (conversion.IsUserDefined)
{
ITypeDefinition typeDef;
if (conversion.Method != null && conversion.Method.DeclaringType != null)
{
typeDef = conversion.Method.DeclaringType.GetDefinitionOrArrayType();
}
else
{
typeDef = conversionType.GetDefinitionOrArrayType();
}
var nativeOverloads = Sk.UseNativeOperatorOverloads(typeDef);
if (nativeOverloads)
{
return(Visit(input));
}
////TODO: Check if OmitCalls is found on conversion method, if so - return Visit(input);
//if (Sk.IsOmitCalls(conversion.Method))
//{
//}
var fake = conversion.Method.InvokeMethod(null, input);
var node2 = Visit(fake);
return(node2);
}
else if (conversion.IsTryCast || conversion.IsExplicit)
{
if (ForceIntegers && conversion.IsNumericConversion && IsInteger(conversionType))
{
return(ForceInteger(Visit(input)));
}
//Skip enum casts
if ((conversionType.Kind == TypeKind.Enum && IsInteger(input.Type)) || (input.Type.Kind == TypeKind.Enum && IsInteger(conversionType)))
{
return(Visit(input));
}
var omitCasts = Sk.OmitCasts(conversionType);
if (omitCasts)
{
return(Visit(input));
}
if (Sk.NativeCasts(conversionType))
{
var exp2 = VisitExpression(input);
var type2 = SkJs.EntityTypeRefToMember(conversionType);
if (conversion.IsTryCast)
{
var node2 = exp2.InstanceOf(type2).Conditional(exp2, Js.Null());
return(node2);
}
else
{
var node2 = Js.Conditional(exp2.InstanceOf(type2).Or(exp2.Equal(Js.Null())), exp2,
Js.Parentheses(Js.Function().Add(Js.ThrowNewError("InvalidCastException")).Invoke()));
//var node2 = Js.Parentheses(Js.Function().AddStatements(
//Js.If(exp2.InstanceOf(type2).Or(exp2.Equal(Js.Null())), Js.Return(exp2)),
//Js.ThrowNewError("InvalidCastException"))).Member("call").Invoke(Js.This());
return(node2);
}
}
else
{
var cast = conversion.IsTryCast ? "As" : "Cast";
var node2 = Js.Member(cast).Invoke(VisitExpression(input), SkJs.EntityTypeRefToMember(conversionType));
return(node2);
}
}
return(Visit(input));
}