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#
# __COPYRIGHT__
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
"""SCons.Warnings
This file implements the warnings framework for SCons.
"""
__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
import SCons.Errors
class Warning(SCons.Errors.UserError):
pass
# NOTE: If you add a new warning class, add it to the man page, too!
class CacheWriteErrorWarning(Warning):
pass
class CorruptSConsignWarning(Warning):
pass
class DependencyWarning(Warning):
pass
class DeprecatedWarning(Warning):
pass
class DuplicateEnvironmentWarning(Warning):
pass
class MisleadingKeywordsWarning(Warning):
pass
class MissingSConscriptWarning(Warning):
pass
class NoMD5ModuleWarning(Warning):
pass
class NoMetaclassSupportWarning(Warning):
pass
class NoParallelSupportWarning(Warning):
pass
class ReservedVariableWarning(Warning):
pass
_warningAsException = 0
# The below is a list of 2-tuples. The first element is a class object.
# The second element is true if that class is enabled, false if it is disabled.
_enabled = []
_warningOut = None
def suppressWarningClass(clazz):
"""Suppresses all warnings that are of type clazz or
derived from clazz."""
_enabled.insert(0, (clazz, 0))
def enableWarningClass(clazz):
"""Suppresses all warnings that are of type clazz or
derived from clazz."""
_enabled.insert(0, (clazz, 1))
def warningAsException(flag=1):
"""Turn warnings into exceptions. Returns the old value of the flag."""
global _warningAsException
old = _warningAsException
_warningAsException = flag
return old
def warn(clazz, *args):
global _enabled, _warningAsException, _warningOut
warning = clazz(args)
for clazz, flag in _enabled:
if isinstance(warning, clazz):
if flag:
if _warningAsException:
raise warning
if _warningOut:
_warningOut(warning)
break
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