This adds basic support for different Lua versions.
For Lua 5.2 and Lua 5.3, both the Bit32 and Compat53 Lua modules must be
installed for it to work. You can typically get these on Linux using
apt install lua-compat53 lua-bit32
For Lua 5.4, it should work as is, as it is a clean superset of Lua 5.3,
which is what the original Lua Flatbuffers supported.
LuaJIT as installed by apt doesn't include the COMPAT mode for using
Lua5.2 features. So this change just makes the flatbuffer code use a
common implementation.
* [Lua] Add LuaJIT support
Here is the output of LuaTest.sh:
Run with LuaJIT:
built 100 512-byte flatbuffers in 0.16sec: 0.63/msec, 0.31MB/sec
built 1000 512-byte flatbuffers in 0.08sec: 12.06/msec, 5.89MB/sec
built 10000 512-byte flatbuffers in 0.80sec: 12.44/msec, 6.07MB/sec
built 10000 512-byte flatbuffers in 0.33sec: 30.58/msec, 14.93MB/sec
traversed 100 592-byte flatbuffers in 0.04sec: 2.51/msec, 1.42MB/sec
traversed 1000 592-byte flatbuffers in 0.03sec: 31.52/msec, 17.79MB/sec
traversed 10000 592-byte flatbuffers in 0.21sec: 48.77/msec, 27.53MB/sec
Run with Lua 5.3:
built 100 512-byte flatbuffers in 0.02sec: 5.44/msec, 2.66MB/sec
built 1000 512-byte flatbuffers in 0.17sec: 5.74/msec, 2.80MB/sec
built 10000 512-byte flatbuffers in 1.75sec: 5.72/msec, 2.79MB/sec
built 10000 512-byte flatbuffers in 1.38sec: 7.26/msec, 3.55MB/sec
traversed 100 592-byte flatbuffers in 0.00sec: 27.64/msec, 15.60MB/sec
traversed 1000 592-byte flatbuffers in 0.03sec: 30.46/msec, 17.20MB/sec
traversed 10000 592-byte flatbuffers in 0.34sec: 29.62/msec, 16.72MB/sec
* [Lua] Better usage description
* update according to the review
The packing/unpacking steps for Boolean values was failing because the
code expected numerical values. I overrode the functions for the Boolean
metatable to account for this. I also had to exclude the Boolean
metatable from the GenerateTypes helper function, as that was overriding
the Pack/Unpack functions defined in its metatable.
Added Linux bash script to run Lua tests from the command line.
Bug: google/flatbuffers#5379
Tested: Added Lua tests that were failing and are now fixed with the
code changes.
Derek Bailey