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# Copyright 2019 The Meson development team
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from mesonbuild.templates.sampleimpl import SampleImpl
import re
lib_fortran_template = '''
! This procedure will not be exported and is not
! directly callable by users of this library.
module modfoo
implicit none
private
public :: {function_name}
contains
integer function internal_function()
internal_function = 0
end function internal_function
integer function {function_name}()
{function_name} = internal_function()
end function {function_name}
end module modfoo
'''
lib_fortran_test_template = '''
use modfoo
print *,{function_name}()
end program
'''
lib_fortran_meson_template = '''project('{project_name}', 'fortran',
version : '{version}',
default_options : ['warning_level=3'])
# These arguments are only used to build the shared library
# not the executables that use the library.
lib_args = ['-DBUILDING_{utoken}']
shlib = shared_library('{lib_name}', '{source_file}',
install : true,
fortran_args : lib_args,
gnu_symbol_visibility : 'hidden',
)
test_exe = executable('{test_exe_name}', '{test_source_file}',
link_with : shlib)
test('{test_name}', test_exe)
# Make this library usable as a Meson subproject.
{ltoken}_dep = declare_dependency(
include_directories: include_directories('.'),
link_with : shlib)
pkg_mod = import('pkgconfig')
pkg_mod.generate(
name : '{project_name}',
filebase : '{ltoken}',
description : 'Meson sample project.',
subdirs : '{header_dir}',
libraries : shlib,
version : '{version}',
)
'''
hello_fortran_template = '''
implicit none
character(len=*), parameter :: PROJECT_NAME = "{project_name}"
print *,"This is project ", PROJECT_NAME
end program
'''
hello_fortran_meson_template = '''project('{project_name}', 'fortran',
version : '{version}',
default_options : ['warning_level=3'])
exe = executable('{exe_name}', '{source_name}',
install : true)
test('basic', exe)
'''
class FortranProject(SampleImpl):
def __init__(self, options):
super().__init__()
self.name = options.name
self.version = options.version
def create_executable(self) -> None:
lowercase_token = re.sub(r'[^a-z0-9]', '_', self.name.lower())
source_name = lowercase_token + '.f90'
open(source_name, 'w', encoding='utf-8').write(hello_fortran_template.format(project_name=self.name))
open('meson.build', 'w', encoding='utf-8').write(
hello_fortran_meson_template.format(project_name=self.name,
exe_name=lowercase_token,
source_name=source_name,
version=self.version))
def create_library(self) -> None:
lowercase_token = re.sub(r'[^a-z0-9]', '_', self.name.lower())
uppercase_token = lowercase_token.upper()
function_name = lowercase_token[0:3] + '_func'
test_exe_name = lowercase_token + '_test'
lib_fortran_name = lowercase_token + '.f90'
test_fortran_name = lowercase_token + '_test.f90'
kwargs = {'utoken': uppercase_token,
'ltoken': lowercase_token,
'header_dir': lowercase_token,
'function_name': function_name,
'source_file': lib_fortran_name,
'test_source_file': test_fortran_name,
'test_exe_name': test_exe_name,
'project_name': self.name,
'lib_name': lowercase_token,
'test_name': lowercase_token,
'version': self.version,
}
open(lib_fortran_name, 'w', encoding='utf-8').write(lib_fortran_template.format(**kwargs))
open(test_fortran_name, 'w', encoding='utf-8').write(lib_fortran_test_template.format(**kwargs))
open('meson.build', 'w', encoding='utf-8').write(lib_fortran_meson_template.format(**kwargs))
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