mirror of https://github.com/RT-Thread/rt-thread
89 lines
3.3 KiB
Python
89 lines
3.3 KiB
Python
# -*- coding: utf-8 -*-
|
|
#
|
|
# File : preprocessor.py
|
|
# This file is part of RT-Thread RTOS
|
|
# COPYRIGHT (C) 2006 - 2025, RT-Thread Development Team
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program 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 General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License along
|
|
# with this program; if not, write to the Free Software Foundation, Inc.,
|
|
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
#
|
|
# Change Logs:
|
|
# Date Author Notes
|
|
# 2025-01-05 Assistant Extract SCons PreProcessor patch to independent class
|
|
|
|
from SCons.Script import *
|
|
|
|
class SConsPreProcessorPatch:
|
|
"""
|
|
SCons PreProcessor patch class
|
|
|
|
This class provides methods to patch the SCons PreProcessor
|
|
to handle conditional compilation directives properly.
|
|
"""
|
|
|
|
def __init__(self):
|
|
"""Initialize the PreProcessor patch"""
|
|
self._patched_preprocessor = None
|
|
self._apply_patch()
|
|
|
|
def _apply_patch(self):
|
|
"""
|
|
Apply the patch to SCons PreProcessor
|
|
|
|
This method patches the SCons.cpp.PreProcessor class with
|
|
custom methods for handling includes during conditional compilation.
|
|
"""
|
|
from SCons import cpp
|
|
|
|
# Store reference to original PreProcessor
|
|
self._patched_preprocessor = cpp.PreProcessor
|
|
|
|
# Create bound methods for the patch
|
|
def start_handling_includes(preprocessor_self, t=None):
|
|
d = preprocessor_self.dispatch_table
|
|
p = preprocessor_self.stack[-1] if preprocessor_self.stack else preprocessor_self.default_table
|
|
for k in ('import', 'include', 'include_next', 'define'):
|
|
d[k] = p[k]
|
|
|
|
def stop_handling_includes(preprocessor_self, t=None):
|
|
d = preprocessor_self.dispatch_table
|
|
d['import'] = preprocessor_self.do_nothing
|
|
d['include'] = preprocessor_self.do_nothing
|
|
d['include_next'] = preprocessor_self.do_nothing
|
|
d['define'] = preprocessor_self.do_nothing
|
|
|
|
# Apply the patch methods
|
|
self._patched_preprocessor.start_handling_includes = start_handling_includes
|
|
self._patched_preprocessor.stop_handling_includes = stop_handling_includes
|
|
|
|
def get_patched_preprocessor(self):
|
|
return self._patched_preprocessor
|
|
|
|
def create_preprocessor_instance(self):
|
|
return self._patched_preprocessor()
|
|
|
|
# Global instance for easy access
|
|
_preprocessor_patch = None
|
|
|
|
def get_patched_preprocessor():
|
|
global _preprocessor_patch
|
|
if _preprocessor_patch is None:
|
|
_preprocessor_patch = SConsPreProcessorPatch()
|
|
return _preprocessor_patch.get_patched_preprocessor()
|
|
|
|
def create_preprocessor_instance():
|
|
global _preprocessor_patch
|
|
if _preprocessor_patch is None:
|
|
_preprocessor_patch = SConsPreProcessorPatch()
|
|
return _preprocessor_patch.create_preprocessor_instance() |