[PATCH 0/2] decimal: expose decimal module to lua.

[Serge Petrenko]

https://github.com/tarantool/tarantool/issues/692
https://github.com/tarantool/tarantool/tree/sp/gh-692-decimal-lua

This patchset adds decimal module to lua.

Since FFI CDATA is chosen to store decimals on lua stack, a new helper to
register FFI metatypes is added in the first patch.

The second patch does the job itself of exposing the decimal module to lua and
adds a minor tes. The patch also contains a documentation request in the commit
message.

Serge Petrenko (2):
  lua/utils: add a function to register FFI metatypes.
  decimal: expose decimal type to lua.

 src/CMakeLists.txt        |   1 +
 src/lua/decimal.c         | 327 ++++++++++++++++++++++++++++++++++++++
 src/lua/decimal.h         |  39 +++++
 src/lua/init.c            |   2 +
 src/lua/utils.c           |  28 ++++
 src/lua/utils.h           |  13 ++
 test/app/decimal.result   | 172 ++++++++++++++++++++
 test/app/decimal.test.lua |  50 ++++++
 8 files changed, 632 insertions(+)
 create mode 100644 src/lua/decimal.c
 create mode 100644 src/lua/decimal.h
 create mode 100644 test/app/decimal.result
 create mode 100644 test/app/decimal.test.lua

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2.20.1 (Apple Git-117)