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1f578ec5a1
Use preprocessor trick proposed by @mahkoh to import 'defines' like S_IRUSR.
52 lines
1.3 KiB
Plaintext
52 lines
1.3 KiB
Plaintext
ffi = require 'ffi'
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-- load neovim shared library
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libnvim = ffi.load './build/src/libnvim-test.so'
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-- Luajit ffi parser doesn't understand preprocessor directives, so
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-- this helper function removes common directives before passing it the to ffi.
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-- It will return a pointer to the library table, emulating 'requires'
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cimport = (path) ->
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header_file = io.open path, 'rb'
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if not header_file
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error "cannot find #{path}"
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header = header_file\read '*a'
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header_file.close!
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header = string.gsub header, '#include[^\n]*\n', ''
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header = string.gsub header, '#ifndef[^\n]*\n', ''
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header = string.gsub header, '#define[^\n]*\n', ''
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header = string.gsub header, '#endif[^\n]*\n', ''
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ffi.cdef header
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return libnvim
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cppimport = (path) ->
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return cimport './test/includes/post/' .. path
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cimport './src/types.h'
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-- take a pointer to a C-allocated string and return an interned
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-- version while also freeing the memory
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internalize = (cdata) ->
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ffi.gc cdata, ffi.C.free
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return ffi.string cdata
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cstr = ffi.typeof 'char[?]'
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to_cstr = (string) ->
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cstr (string.len string) + 1, string
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return {
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cimport: cimport
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cppimport: cppimport
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internalize: internalize
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eq: (expected, actual) -> assert.are.same expected, actual
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neq: (expected, actual) -> assert.are_not.same expected, actual
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ffi: ffi
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lib: libnvim
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cstr: cstr
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to_cstr: to_cstr
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}
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