/// <summary>
/// Gets the or add cache.
/// </summary>
/// <param name="name">The name.</param>
/// <returns></returns>
public ICache?GetOrAddCache(string name = "Default")
{
if (Caches is null)
{
return(null);
}
var CacheKey = GetKey(name);
if (Caches.TryGetValue(CacheKey, out var ReturnValue))
{
return(ReturnValue);
}
lock (CacheCreationLock)
{
if (Caches.TryGetValue(CacheKey, out ReturnValue))
{
return(ReturnValue);
}
var DefaultKey = GetKey("Default");
Caches.TryGetValue(DefaultKey, out ReturnValue);
ReturnValue = ReturnValue.Clone();
if (ReturnValue is null)
{
return(null);
}
Caches.Add(CacheKey, ReturnValue);
return(ReturnValue);
}
}
public override AstStatement Clone() => CopyValuesTo(new AstReturnStmt(ReturnValue?.Clone()));
public override Expression VisitReturnValue(ReturnValue retval)
{
if (retval == null) return null;
ReturnValue dup = (ReturnValue)this.DuplicateFor[retval.UniqueKey];
if (dup != null) return dup;
this.DuplicateFor[retval.UniqueKey] = dup = (ReturnValue)retval.Clone();
return base.VisitReturnValue(dup);
}