SConf.py 文件源码

def failed(self):
        # check, if the reason was a ConfigureDryRunError or a
        # ConfigureCacheError and if yes, reraise the exception
        exc_type = self.exc_info()[0]
        if issubclass(exc_type, SConfError):
            raise
        elif issubclass(exc_type, SCons.Errors.BuildError):
            # we ignore Build Errors (occurs, when a test doesn't pass)
            # Clear the exception to prevent the contained traceback
            # to build a reference cycle.
            self.exc_clear()
        else:
            self.display('Caught exception while building "%s":\n' %
                         self.targets[0])
            sys.excepthook(*self.exc_info())
        return SCons.Taskmaster.Task.failed(self)