public BoxedValueType(ModuleDesc owningModule, MetadataType valuetype)
{
// BoxedValueType has the same genericness as the valuetype it's wrapping.
// Making BoxedValueType wrap the genericness (and be itself nongeneric) would
// require a crazy name mangling scheme to allow generating stable and unique names
// for the wrappers.
Debug.Assert(valuetype.IsTypeDefinition);
Debug.Assert(valuetype.IsValueType);
Module = owningModule;
ValueTypeRepresented = valuetype;
// Unboxing thunks for byref-like types don't make sense. Byref-like types cannot be boxed.
// We still allow these to exist in the system, because it's easier than trying to prevent
// their creation. We create them as if they existed (in lieu of e.g. pointing all of them
// to the same __unreachable method body) so that the various places that store pointers to
// them because they want to be able to extract the target instance method can use the same
// mechanism they use for everything else at runtime.
// The main difference is that the "Boxed_ValueType" version has no fields. Reference types
// cannot have byref-like fields.
if (!valuetype.IsByRefLike)
{
BoxedValue = new BoxedValueField(this);
}
}
public BoxedValueType(ModuleDesc owningModule, MetadataType valuetype)
{
// BoxedValueType has the same genericness as the valuetype it's wrapping.
// Making BoxedValueType wrap the genericness (and be itself nongeneric) would
// require a crazy name mangling scheme to allow generating stable and unique names
// for the wrappers.
Debug.Assert(valuetype.IsTypeDefinition);
Debug.Assert(valuetype.IsValueType);
Module = owningModule;
ValueTypeRepresented = valuetype;
BoxedValue = new BoxedValueField(this);
}
