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"""SCons.Errors

This file contains the exception classes used to handle internal
and user errors in SCons.

"""

__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"



class BuildError(Exception):
    def __init__(self, node=None, errstr="Unknown error", *args):
        self.node = node
        self.errstr = errstr
        self.args = args

class InternalError(Exception):
    def __init__(self, args=None):
        self.args = args

class UserError(Exception):
    def __init__(self, args=None):
        self.args = args

class StopError(Exception):
    def __init__(self, args=None):
        self.args = args

class ExplicitExit(Exception):
    def __init__(self, node=None, status=None, *args):
        self.node = node
        self.status = status
        self.args = args

class ConfigureDryRunError(UserError):
    """Raised when a file needs to be updated during a Configure process,
    but the user requested a dry-run"""
    def __init__(self,file):
        UserError.__init__(self,"Cannot update configure test (%s) within a dry-run." % str(file))

class TaskmasterException(Exception):
    def __init__(self, type, value, traceback, *args):
        self.type = type
        self.value = value
        self.traceback = traceback
        self.args = args