Implementing data structures with closures and coroutines

["Soni L." <fakedme@...>]

Hi list,

I'd like to implement data structures using nothing but closures and 
coroutines, including setmetatable (or, in this project, setmetaclosure) 
and getmetatable (or, in this project, getmetaclosure). These would be 
wrappers around the stdlib's setmetatable and getmetatable.

Combining varargs and coroutines makes efficient stacks that are very 
fast for push/pop operations, but very slow for other operations, thus 
they are unsuitable as a general-purpose data structure.

How can I make general-purpose data structures without tables?

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