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- Subject: Symmetry between language and C API (Was: (not) handling new programming idioms with grace
- From: Dirk Laurie <dirk.laurie@...>
- Date: Mon, 23 Jul 2018 10:08:01 +0200
2018-07-20 20:57 GMT+02:00 William Ahern <firstname.lastname@example.org>:
> I wish people (myself included) would keep in mind the symmetry that Lua
> tries to maintain between the language and the C API. Aside from making the
> C API incomparably superior to other language implementations, the
> constraint keeps Lua honest and careful. If a feature can be elegantly
> expressed and implemented for *both* the language and the C API, that's
> strong evidence it's a quality choice. If it can't be, it suggests to keep
One place where the symmetry currently is broken is concatenation.
The C API function lua_concat respects metamethods, the table.concat
function does not.