Re: Mutual recursion

[nobody <nobody+lua-list@...>]

On 23/04/2020 13.40, Gavin Wraith wrote:
> At present the only way to implement mutual recursion in Lua is to 
> declare two local variables first within a chunk and then to define 
> two mutually dependent functions later in that chunk with the same 
> names.

Not true.  Arbitrary table fields, in particular global variables, work
fine.

> There is no way to have mutual recursion between functions defined in
> separate files, for example. But is there a way to mimic a linker, 
> using loadfile, and then doing some patching?

If you want to avoid having to use global variables or passing a table
to both modules, you can also use `debug.upvaluejoin` to merge upvalue
references after they have been created.

-- nobody
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