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[lua52-sys] add ref/unref functions and helper constants #162

Merged
merged 1 commit into from
Aug 29, 2017
Merged

[lua52-sys] add ref/unref functions and helper constants #162

merged 1 commit into from
Aug 29, 2017

Commits on Aug 28, 2017

  1. [lua52-sys] add ref/unref functions and helper constants 

    These are useful when adding things to the Lua registry. From the
documentation at http://pgl.yoyo.org/luai/i/luaL_ref:

> As long as you do not manually add integer keys into table t, luaL_ref
> ensures the uniqueness of the key it returns.

This can be done by hand with (say) an `AtomicIsize`, but it's just
easier to use these functions.
    @sunshowers
    sunshowers committed Aug 28, 2017
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