本文整理汇总了Python中libcxx.compiler.CXXCompiler.useWarnings方法的典型用法代码示例。如果您正苦于以下问题：Python CXXCompiler.useWarnings方法的具体用法？Python CXXCompiler.useWarnings怎么用？Python CXXCompiler.useWarnings使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类libcxx.compiler.CXXCompiler的用法示例。
在下文中一共展示了CXXCompiler.useWarnings方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: Configuration
# 需要导入模块: from libcxx.compiler import CXXCompiler [as 别名]
# 或者: from libcxx.compiler.CXXCompiler import useWarnings [as 别名]
#.........这里部分代码省略.........
use_color = os.environ.get('LIBCXX_COLOR_DIAGNOSTICS')
if use_color is None:
return
if use_color != '':
self.lit_config.fatal('Invalid value for color_diagnostics "%s".'
% use_color)
color_flag = '-fdiagnostics-color=always'
# Check if the compiler supports the color diagnostics flag. Issue a
# warning if it does not since color diagnostics have been requested.
if not self.cxx.hasCompileFlag(color_flag):
self.lit_config.warning(
'color diagnostics have been requested but are not supported '
'by the compiler')
else:
self.cxx.flags += [color_flag]
def configure_debug_mode(self):
debug_level = self.get_lit_conf('debug_level', None)
if not debug_level:
return
if debug_level not in ['0', '1']:
self.lit_config.fatal('Invalid value for debug_level "%s".'
% debug_level)
self.cxx.compile_flags += ['-D_LIBCPP_DEBUG=%s' % debug_level]
def configure_warnings(self):
# Turn on warnings by default for Clang based compilers when C++ >= 11
default_enable_warnings = self.cxx.type in ['clang', 'apple-clang'] \
and len(self.config.available_features.intersection(
['c++11', 'c++14', 'c++1z'])) != 0
enable_warnings = self.get_lit_bool('enable_warnings',
default_enable_warnings)
if enable_warnings:
self.cxx.useWarnings(True)
self.cxx.warning_flags += [
'-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER',
'-Wall', '-Wextra', '-Werror'
]
self.cxx.addWarningFlagIfSupported('-Wshadow')
self.cxx.addWarningFlagIfSupported('-Wno-unused-command-line-argument')
self.cxx.addWarningFlagIfSupported('-Wno-attributes')
self.cxx.addWarningFlagIfSupported('-Wno-pessimizing-move')
self.cxx.addWarningFlagIfSupported('-Wno-c++11-extensions')
self.cxx.addWarningFlagIfSupported('-Wno-user-defined-literals')
# These warnings should be enabled in order to support the MSVC
# team using the test suite; They enable the warnings below and
# expect the test suite to be clean.
self.cxx.addWarningFlagIfSupported('-Wsign-compare')
self.cxx.addWarningFlagIfSupported('-Wunused-variable')
self.cxx.addWarningFlagIfSupported('-Wunused-parameter')
self.cxx.addWarningFlagIfSupported('-Wunreachable-code')
# FIXME: Enable the two warnings below.
self.cxx.addWarningFlagIfSupported('-Wno-conversion')
self.cxx.addWarningFlagIfSupported('-Wno-unused-local-typedef')
std = self.get_lit_conf('std', None)
if std in ['c++98', 'c++03']:
# The '#define static_assert' provided by libc++ in C++03 mode
# causes an unused local typedef whenever it is used.
self.cxx.addWarningFlagIfSupported('-Wno-unused-local-typedef')
def configure_sanitizer(self):
san = self.get_lit_conf('use_sanitizer', '').strip()
if san:
self.target_info.add_sanitizer_features(san, self.config.available_features)
# Search for llvm-symbolizer along the compiler path first
# and then along the PATH env variable.