--- /dev/null
+#
+# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 The SCons Foundation
+#
+# 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__ = "src/engine/SCons/Warnings.py 5023 2010/06/14 22:05:46 scons"
+
+import sys
+
+import SCons.Errors
+
+class Warning(SCons.Errors.UserError):
+ pass
+
+class WarningOnByDefault(Warning):
+ pass
+
+
+# NOTE: If you add a new warning class, add it to the man page, too!
+
+class CacheWriteErrorWarning(Warning):
+ pass
+
+class CorruptSConsignWarning(WarningOnByDefault):
+ pass
+
+class DependencyWarning(Warning):
+ pass
+
+class DuplicateEnvironmentWarning(WarningOnByDefault):
+ pass
+
+class FutureReservedVariableWarning(WarningOnByDefault):
+ pass
+
+class LinkWarning(WarningOnByDefault):
+ pass
+
+class MisleadingKeywordsWarning(WarningOnByDefault):
+ pass
+
+class MissingSConscriptWarning(WarningOnByDefault):
+ pass
+
+class NoMD5ModuleWarning(WarningOnByDefault):
+ pass
+
+class NoMetaclassSupportWarning(WarningOnByDefault):
+ pass
+
+class NoObjectCountWarning(WarningOnByDefault):
+ pass
+
+class NoParallelSupportWarning(WarningOnByDefault):
+ pass
+
+class ReservedVariableWarning(WarningOnByDefault):
+ pass
+
+class StackSizeWarning(WarningOnByDefault):
+ pass
+
+class VisualCMissingWarning(WarningOnByDefault):
+ pass
+
+# Used when MSVC_VERSION and MSVS_VERSION do not point to the
+# same version (MSVS_VERSION is deprecated)
+class VisualVersionMismatch(WarningOnByDefault):
+ pass
+
+class VisualStudioMissingWarning(Warning):
+ pass
+
+class FortranCxxMixWarning(LinkWarning):
+ pass
+
+
+# Deprecation warnings
+
+class FutureDeprecatedWarning(Warning):
+ pass
+
+class DeprecatedWarning(Warning):
+ pass
+
+class MandatoryDeprecatedWarning(DeprecatedWarning):
+ pass
+
+
+# Special case; base always stays DeprecatedWarning
+class PythonVersionWarning(DeprecatedWarning):
+ pass
+
+class DeprecatedSourceCodeWarning(FutureDeprecatedWarning):
+ pass
+
+class DeprecatedBuildDirWarning(DeprecatedWarning):
+ pass
+
+class TaskmasterNeedsExecuteWarning(DeprecatedWarning):
+ pass
+
+class DeprecatedCopyWarning(MandatoryDeprecatedWarning):
+ pass
+
+class DeprecatedOptionsWarning(MandatoryDeprecatedWarning):
+ pass
+
+class DeprecatedSourceSignaturesWarning(MandatoryDeprecatedWarning):
+ pass
+
+class DeprecatedTargetSignaturesWarning(MandatoryDeprecatedWarning):
+ pass
+
+class DeprecatedDebugOptionsWarning(MandatoryDeprecatedWarning):
+ pass
+
+class DeprecatedSigModuleWarning(MandatoryDeprecatedWarning):
+ pass
+
+class DeprecatedBuilderKeywordsWarning(MandatoryDeprecatedWarning):
+ pass
+
+
+# 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 = []
+
+# If set, raise the warning as an exception
+_warningAsException = 0
+
+# If not None, a function to call with the warning
+_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):
+ """Enables 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
+
+def process_warn_strings(arguments):
+ """Process string specifications of enabling/disabling warnings,
+ as passed to the --warn option or the SetOption('warn') function.
+
+
+ An argument to this option should be of the form <warning-class>
+ or no-<warning-class>. The warning class is munged in order
+ to get an actual class name from the classes above, which we
+ need to pass to the {enable,disable}WarningClass() functions.
+ The supplied <warning-class> is split on hyphens, each element
+ is capitalized, then smushed back together. Then the string
+ "Warning" is appended to get the class name.
+
+ For example, 'deprecated' will enable the DeprecatedWarning
+ class. 'no-dependency' will disable the DependencyWarning class.
+
+ As a special case, --warn=all and --warn=no-all will enable or
+ disable (respectively) the base Warning class of all warnings.
+
+ """
+
+ def _capitalize(s):
+ if s[:5] == "scons":
+ return "SCons" + s[5:]
+ else:
+ return s.capitalize()
+
+ for arg in arguments:
+
+ elems = arg.lower().split('-')
+ enable = 1
+ if elems[0] == 'no':
+ enable = 0
+ del elems[0]
+
+ if len(elems) == 1 and elems[0] == 'all':
+ class_name = "Warning"
+ else:
+ class_name = ''.join(map(_capitalize, elems)) + "Warning"
+ try:
+ clazz = globals()[class_name]
+ except KeyError:
+ sys.stderr.write("No warning type: '%s'\n" % arg)
+ else:
+ if enable:
+ enableWarningClass(clazz)
+ elif issubclass(clazz, MandatoryDeprecatedWarning):
+ fmt = "Can not disable mandataory warning: '%s'\n"
+ sys.stderr.write(fmt % arg)
+ else:
+ suppressWarningClass(clazz)
+
+# Local Variables:
+# tab-width:4
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=4 shiftwidth=4:
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