[Tarantool-patches] [PATCH luajit] test: adapt test checking global environment
Sergey Kaplun
skaplun at tarantool.org
Tue Oct 5 20:37:06 MSK 2021
Hi, Maxim!
Thanks for the patch!
LGTM, with a few nitpicks below.
On 24.09.21, Maxim Kokryashkin wrote:
> LuaJIT doesn't take into account tail calls for
> call-level counting, so `getfenv()` behaviour is different
> in tail calls. getfenv()` default level is 1 which is invalid for
> the test case when is called from tail call (`lj_debug_frame()`
> returns NULL).
>
> This commits adds local varible, so there is no tail call any more.
Typo: s/varible/variable/
>
> Closes tarantool/tarantool#5713
> Part of tarantool/tarantool#5845
This issue is already closed via disabling the aforementioned test.
Just refer 5870 ticket instead.
> Part of tarantool/tarantool#4473
It is better to mention 5870 only. We want epics to stay clear, IINM.
> ---
> Issue: https://github.com/tarantool/tarantool/issues/5713
> GitHub branch: https://github.com/tarantool/luajit/tree/fckxorg/gh-5713-adapt-test-global-environment-PUC-Rio
Please, share the Tarantool branch with the patch to check that CI still
works :).
>
> test/PUC-Rio-Lua-5.1-tests/closure.lua | 10 ++++++----
> 1 file changed, 6 insertions(+), 4 deletions(-)
>
> diff --git a/test/PUC-Rio-Lua-5.1-tests/closure.lua b/test/PUC-Rio-Lua-5.1-tests/closure.lua
> index 551fe70d..c0377179 100644
> --- a/test/PUC-Rio-Lua-5.1-tests/closure.lua
> +++ b/test/PUC-Rio-Lua-5.1-tests/closure.lua
> @@ -167,22 +167,24 @@ local function foo (a)
> assert(getfenv(0) == a)
> assert(getfenv(1) == _G)
> assert(getfenv(loadstring"") == a)
> - return getfenv()
I suppose that we can move the comment here to explain the change.
> + local env = getfenv()
> + return env
> end
>
> f = coroutine.wrap(foo)
> local a = {}
> assert(f(a) == _G)
> local a,b = pcall(f)
> --- FIXME: LuaJIT doesn't take into account tail calls for
> +-- LuaJIT doesn't take into account tail calls for
> -- call-level counting, so `getfenv()` behaviour is different
> -- in tail calls. For example, this `pcall()` returns false,
Minor: returns false in case of tailcall, strictly saying, as far as you
change the function behaviour.
> -- because `getfenv()` default level is 1 which is invalid for
> -- this case when is called from tail call (`lj_debug_frame()`
> -- returns NULL).
> -- See also https://github.com/tarantool/tarantool/issues/5713.
> --- Test is disabled for LuaJIT for now.
> --- assert(a and b == _G)
> +
> +-- Test is adapted to the behavior LuaJIT.
> +assert(a and b == _G)
>
>
> -- tests for multiple yield/resume arguments
> --
> 2.33.0
>
[1]: https://github.com/tarantool/tarantool/issues/5870
--
Best regards,
Sergey Kaplun
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