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# -*- Mode: Python -*-
# GObject-Introspection - a framework for introspecting GObject libraries
# Copyright (C) 2014 Chun-wei Fan
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
#
import os
import distutils
from distutils.errors import DistutilsExecError, CompileError
from distutils.ccompiler import CCompiler, gen_preprocess_options
from distutils.dep_util import newer
# Distutil's MSVCCompiler does not provide a preprocess()
# Implementation, so do our own here.
def get_msvc_compiler():
return MSVCCompiler()
class MSVCCompiler(distutils.msvccompiler.MSVCCompiler):
def __init__(self, verbose=0, dry_run=0, force=0):
CCompiler.__init__(self, verbose, dry_run, force)
self.__paths = []
self.__arch = None # deprecated name
if os.name == 'nt':
if isinstance(self, distutils.msvc9compiler.MSVCCompiler):
self.__version = distutils.msvc9compiler.VERSION
self.initialized = False
self.preprocess_options = None
def preprocess(self,
source,
output_file=None,
macros=None,
include_dirs=None,
extra_preargs=None,
extra_postargs=None):
if self.initialized is False:
self.initialize()
(_, macros, include_dirs) = \
self._fix_compile_args(None, macros, include_dirs)
pp_opts = gen_preprocess_options(macros, include_dirs)
preprocess_options = ['-E']
source_basename = None
if output_file is not None:
preprocess_options.append('-P')
source_basename = self._get_file_basename(source)
cpp_args = self.cc.split()
if extra_preargs is not None:
cpp_args[:0] = extra_preargs
if extra_postargs is not None:
preprocess_options.extend(extra_postargs)
cpp_args.extend(preprocess_options)
cpp_args.extend(pp_opts)
cpp_args.append(source)
# We need to preprocess: either we're being forced to, or the
# source file is newer than the target (or the target doesn't
# exist).
if self.force or output_file is None or newer(source, output_file):
try:
self.spawn(cpp_args)
except DistutilsExecError as msg:
print(msg)
raise CompileError
# The /P option for the MSVC preprocessor will output the results
# of the preprocessor to a file, as <source_without_extension>.i,
# so in order to output the specified filename, we need to rename
# that file
if output_file is not None:
if output_file != source_basename + '.i':
os.rename(source_basename + '.i', output_file)
def _get_file_basename(self, filename):
if filename is None:
return None
if filename.rfind('.') == -1:
return filename[filename.rfind('\\') + 1:]
else:
return filename[filename.rfind('\\') + 1:filename.rfind('.')]
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