neovim/test/unit/helpers.moon
John Szakmeister 0b2f6a0cf4 Revamp the build system.
This achieves several goals:

 * Less reliance on scripts so we have better portability to Windows
   (though we still have a ways to go for proper Windows support).
   Luajit, luarocks, moonscript, and busted are all installed via CMake
   now.
 * Trying to make use of pkg-config to get the correct libraries.  The
   latest libuv is still broken in this regard, but we'll at least be in
   a position to use it.
 * Allow the use of Ninja or make.  The former runs faster in many
   environments, and automatically makes use of parallel builds.

This also allows for system installed dependencies--though not through
the Makefile just yet--and adds support for FreeBSD.

This also make us build libuv and luajit as static libraries only, since
we're only concerned about having static libraries for our bundled
dependencies.
2014-03-21 15:22:00 -04:00

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ffi = require 'ffi'
-- load neovim shared library
testlib = os.getenv 'NVIM_TEST_LIB'
unless testlib
testlib = './build/src/libnvim-test.so'
libnvim = ffi.load testlib
-- Luajit ffi parser doesn't understand preprocessor directives, so
-- this helper function removes common directives before passing it the to ffi.
-- It will return a pointer to the library table, emulating 'requires'
cimport = (path) ->
header_file = io.open path, 'rb'
if not header_file
error "cannot find #{path}"
header = header_file\read '*a'
header_file.close!
header = string.gsub header, '#include[^\n]*\n', ''
header = string.gsub header, '#ifndef[^\n]*\n', ''
header = string.gsub header, '#define[^\n]*\n', ''
header = string.gsub header, '#endif[^\n]*\n', ''
ffi.cdef header
return libnvim
testinc = os.getenv 'TEST_INCLUDES'
unless testinc
testinc = './build/test/includes/post'
cppimport = (path) ->
return cimport testinc .. '/' .. path
cimport './src/types.h'
-- take a pointer to a C-allocated string and return an interned
-- version while also freeing the memory
internalize = (cdata) ->
ffi.gc cdata, ffi.C.free
return ffi.string cdata
cstr = ffi.typeof 'char[?]'
to_cstr = (string) ->
cstr (string.len string) + 1, string
return {
cimport: cimport
cppimport: cppimport
internalize: internalize
eq: (expected, actual) -> assert.are.same expected, actual
neq: (expected, actual) -> assert.are_not.same expected, actual
ffi: ffi
lib: libnvim
cstr: cstr
to_cstr: to_cstr
}