internal override InvalidInfo CheckValid(ValidityContext vctxt, MessageContext ctxt, RootEnvironment rootEnv)
{
if (Index >= rootEnv.SkolemDefs.Count)
{
vctxt.Log(new InvalidTypeRef(ctxt, this, "skolemized type index is out of range"));
return(new InvalidInfo(MessageContextBuilders.Type(vctxt.Global, this)));
}
return(vctxt.ImplementableTypeRef(ctxt, rootEnv, this));
}
internal override InvalidInfo CheckValid(ValidityContext vctxt, MessageContext ctxt, RootEnvironment rootEnv)
{
var v = arguments.Select(a => a.CheckValid(vctxt, ctxt, rootEnv)).FirstOrDefault(v2 => v2 != null);
if (v != null)
{
return(v);
}
var groundArguments = rootEnv.SubstituteTypes(arguments);
var tyconEnv = name.Enter(rootEnv);
if (!tyconEnv.Type.PrimAreValidArguments(vctxt, ctxt, this, tyconEnv.ToGround(), groundArguments))
{
return(new InvalidInfo(MessageContextBuilders.Type(vctxt.Global, this)));
}
return(vctxt.ImplementableTypeRef(ctxt, rootEnv, this));
}
internal override InvalidInfo CheckValid(ValidityContext vctxt, MessageContext ctxt, RootEnvironment rootEnv)
{
switch (ParameterFlavor)
{
case ParameterFlavor.Type:
{
var typeEnv = rootEnv as TypeEnvironment;
if (typeEnv == null)
{
throw new InvalidOperationException("not in type environment");
}
if (Index >= typeEnv.TypeBoundArguments.Count)
{
vctxt.Log(new InvalidTypeRef(ctxt, this, "type-bound type parameter index is out of range"));
return(new InvalidInfo(MessageContextBuilders.Type(vctxt.Global, this)));
}
break;
}
case ParameterFlavor.Method:
{
var methEnv = rootEnv as MethodEnvironment;
if (methEnv == null)
{
throw new InvalidOperationException("not in method environment");
}
if (Index >= methEnv.MethodBoundArguments.Count)
{
vctxt.Log(new InvalidTypeRef(ctxt, this, "method-bound type parameter index is out of range"));
return(new InvalidInfo(MessageContextBuilders.Type(vctxt.Global, this)));
}
break;
}
default:
throw new ArgumentOutOfRangeException();
}
return(vctxt.ImplementableTypeRef(ctxt, rootEnv, this));
}