private ValueDrawerTypeInfo(Type type)
: base(type)
{
Ensure.Argument.NotNull(type, "type");
Ensure.Argument.Is(type, "type", ValueDrawerTypes.Root);
if (Type.IsGenericType)
{
GenericDefinitionInfo = Type.IsGenericTypeDefinition ? this : Get(Type.GetGenericTypeDefinition());
}
var argsForConstraints = GenericDefinitionInfo != null
? GenericDefinitionInfo.GenericArguments : GenericArguments;
if (argsForConstraints.Owner.IsGenericParameter)
{
ConstraintsOnOwner = new GenericParameterConstraints(argsForConstraints.Owner);
}
if (argsForConstraints.Value.IsGenericParameter)
{
ConstraintsOnValue = new GenericParameterConstraints(argsForConstraints.Value);
}
if (ConstraintsOnValue != null)
{
IsInterfaceDrawer = ConstraintsOnValue.TypeCount > 0 &&
ConstraintsOnValue.Types.All(t => t.IsInterface);
}
}
private Type BuildImpl(Type ownerType, Type valueType)
{
CheckUserArgIfRootIsSpecificType(ownerType, "ownerType", GenericArgOwnerIndex);
CheckUserArgIfRootIsSpecificType(valueType, "valueType", GenericArgValueIndex);
Type[] specificArgs;
if (!TryExtractSpecificGenericArgs(ownerType, valueType, out specificArgs))
{
var msg = string.Format(
"Unable to extract generic arguments from '{0}' and '{1}' for {2}",
ownerType, valueType, DrawerTypeDef);
throw new TypeLoadException(msg);
}
for (int i = 0; i < genericArgs.Count; ++i)
{
Type sa = specificArgs[i], ga = genericArgs[i];
if (!GenericParameterConstraints.Match(sa, ga))
{
throw new ArgumentException(string.Format("Generic argument '{0}' not match with '{1}'.", sa, ga));
}
}
return(DrawerTypeDef.MakeGenericType(specificArgs));
}
private int CompareImpl(Type l, Type r)
{
int value;
if (!CompareUtil.PreCompare(l, r, out value))
{
return(value);
}
// Use default compare if any argument is not type of ValueDrawer.
var root = ValueDrawerTypes.Root;
if (!root.IsAssignableFrom(l) || !root.IsAssignableFrom(r))
{
return(Comparer <Type> .Default.Compare(l, r));
}
var priorities = ValueDrawerPrioritiesForType.Get(ValueType ?? typeof(object));
if (priorities != null)
{
var lg = l.IsGenericType ? l.GetGenericTypeDefinition() : l;
var rg = r.IsGenericType ? r.GetGenericTypeDefinition() : r;
int lp = priorities.GetPriority(lg), rp = priorities.GetPriority(rg);
return(lp.CompareTo(rp));
}
ValueDrawerTypeInfo lInfo = ValueDrawerTypeInfo.Get(l), rInfo = ValueDrawerTypeInfo.Get(r);
if (lInfo != null && rInfo != null)
{
// Interface drawer is more appropriate for interface type.
if (lInfo.IsInterfaceDrawer && !rInfo.IsInterfaceDrawer)
{
return(ValueType.IsInterface ? 1 : -1);
}
if (!lInfo.IsInterfaceDrawer && rInfo.IsInterfaceDrawer)
{
return(ValueType.IsInterface ? -1 : 1);
}
GenericParameterConstraints lcov = lInfo.ConstraintsOnValue, rcov = rInfo.ConstraintsOnValue;
if (lcov != null && rcov != null)
{
if (lcov.TypeCount == 1 && rcov.TypeCount == 1)
{
Type lIf = rcov.GetType(0), rIf = rcov.GetType(0);
if (lIf != rIf)
{
if (lIf.IsAssignableFrom(rIf))
{
return(-1);
}
if (rIf.IsAssignableFrom(lIf))
{
return(1);
}
}
}
}
// The more the drawer type derived, the higher priority it owned.
return(lInfo.DeriveDepth.CompareTo(rInfo.DeriveDepth));
}
return(0);
}
