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# SPDX-license-identifer: Apache-2.0
# Copyright © 2021-2024 Intel Corporation
project(
'rustmod bindgen',
['c', 'cpp', 'rust'],
meson_version : '>= 0.63',
default_options : ['cpp_std=c++17'])
prog_bindgen = find_program('bindgen', required : false)
if not prog_bindgen.found()
error('MESON_SKIP_TEST bindgen not found')
endif
cc_id = meson.get_compiler('c').get_id()
compiler_specific_args = []
if cc_id == 'gcc'
compiler_specific_args = ['-fipa-pta']
elif cc_id == 'msvc'
compiler_specific_args = ['/fp:fast']
endif
add_project_arguments(['-DPROJECT_ARG', compiler_specific_args], language : 'c')
add_global_arguments(['-DGLOBAL_ARG', compiler_specific_args], language : 'c')
# This seems to happen on windows when libclang.dll is not in path or is not
# valid. We must try to process a header file for this to work.
#
# See https://github.com/rust-lang/rust-bindgen/issues/1797
result = run_command(prog_bindgen, 'include/other.h', check: false)
if result.returncode() != 0
error('MESON_SKIP_TEST bindgen does not seem to work')
endif
rust = import('unstable-rust')
# Check version, this case is obviously impossible
testcase expect_error('Program \'bindgen\' not found or not executable')
rust.bindgen(input : 'include/other.h', output : 'other.rs', bindgen_version : ['< 0.1', '> 10000'])
endtestcase
# This is to test the include_directories argument to bindgen
inc = include_directories('include')
c_lib = static_library('clib', 'src/source.c', include_directories : inc)
gen = rust.bindgen(
input : 'src/header.h',
output : 'header.rs',
include_directories : 'include',
)
# see: https://github.com/mesonbuild/meson/issues/8160
f = configure_file(
input : 'src/main.rs',
output : 'main.rs',
copy : true,
)
rust_bin = executable(
'rust_bin',
[f, gen],
link_with : c_lib,
)
test('main', rust_bin)
# Test a generated header
gen_h = custom_target(
'gen.h',
command : [find_program('src/gen_header.py'), '@INPUT@', '@OUTPUT@'],
output : 'gen.h',
input : 'src/header.h'
)
gen2_h = custom_target(
'other.h',
command : [find_program('src/gen_header.py'), '@INPUT@', '@OUTPUT@'],
output : 'other.h',
input : 'include/other.h'
)
gen_rs = rust.bindgen(
input : [gen_h, gen2_h],
output : 'gen.rs',
)
f = configure_file(
input : 'src/main2.rs',
output : 'main2.rs',
copy : true,
)
rust_bin2 = executable(
'rust_bin2',
[f, gen_rs],
link_with : c_lib,
)
test('generated header', rust_bin2)
if prog_bindgen.version().version_compare('>= 0.65')
# Test generating a static inline wrapper
gen3 = rust.bindgen(
input : 'src/header3.h',
output : 'header3.rs',
output_inline_wrapper : 'header3.c',
include_directories : inc,
)
c_inline_wrapper = static_library('c_wrapper', gen3[1], include_directories: inc)
f = configure_file(
input : 'src/main3.rs',
output : 'main3.rs',
copy : true,
)
rust_bin3 = executable(
'rust_bin3',
[f, gen3[0]],
link_with : [
c_lib,
c_inline_wrapper,
],
)
test('static inline wrapper', rust_bin3)
endif
subdir('sub')
subdir('dependencies')
gp = rust.bindgen(
input : 'src/global-project.h',
output : 'global-project.rs',
)
gp_lib = static_library('gp_lib', 'src/global.c')
gp_exe = executable(
'gp_exe',
structured_sources(['src/global.rs', gp]),
link_with : gp_lib,
)
test('global and project arguments', gp_exe)
cpp_lib = static_library('cpplib', 'src/impl.cpp')
cpp_bind = rust.bindgen(
input : 'src/header.hpp',
output : 'generated-cpp.rs',
)
cpp_exe = executable(
'cpp_exe',
structured_sources(['src/cpp.rs', cpp_bind]),
link_with : cpp_lib,
)
test('cpp', cpp_exe)