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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
}
|
