// <summary>
// Flattens composite transient type down to nominal type leafs.
// </summary>
internal static IEnumerable <TypeUsage> FlattenType(TypeUsage type)
{
Func <TypeUsage, bool> isLeaf = t => !Helper.IsTransientType(t.EdmType);
Func <TypeUsage, IEnumerable <TypeUsage> > getImmediateSubNodes =
t =>
{
if (Helper.IsCollectionType(t.EdmType) ||
Helper.IsRefType(t.EdmType))
{
return(new[] { TypeHelpers.GetElementTypeUsage(t) });
}
else if (Helper.IsRowType(t.EdmType))
{
return(((RowType)t.EdmType).Properties.Select(p => p.TypeUsage));
}
else
{
Debug.Fail("cannot enumerate subnodes of a leaf node");
return(new TypeUsage[] { });
}
};
return(Helpers.GetLeafNodes(type, isLeaf, getImmediateSubNodes));
}
internal static IEnumerable <TypeUsage> FlattenType(TypeUsage type)
{
Func <TypeUsage, bool> isLeaf = (Func <TypeUsage, bool>)(t => !Helper.IsTransientType(t.EdmType));
Func <TypeUsage, IEnumerable <TypeUsage> > getImmediateSubNodes = (Func <TypeUsage, IEnumerable <TypeUsage> >)(t =>
{
if (Helper.IsCollectionType((GlobalItem)t.EdmType) || Helper.IsRefType((GlobalItem)t.EdmType))
{
return (IEnumerable <TypeUsage>) new TypeUsage[1]
{
TypeHelpers.GetElementTypeUsage(t)
}
}
;
if (Helper.IsRowType((GlobalItem)t.EdmType))
{
return(((RowType)t.EdmType).Properties.Select <EdmProperty, TypeUsage>((Func <EdmProperty, TypeUsage>)(p => p.TypeUsage)));
}
return((IEnumerable <TypeUsage>) new TypeUsage[0]);
});
return(Helpers.GetLeafNodes <TypeUsage>(type, isLeaf, getImmediateSubNodes));
}
