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24 lines
505 B
24 lines
505 B
4 weeks ago
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import traceback
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class DBCError(Exception): pass
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class CheckError(DBCError): pass
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class PreError(DBCError): pass
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class PostError(DBCError): pass
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class SentinelError(DBCError): pass
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def check(test, msg, cls=CheckError):
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print(">>> ", msg)
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traceback.print_stack(limit=-1)
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if not test:
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raise cls(msg)
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def pre(test, msg):
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check(test, msg, PreError)
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def post(test, msg):
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check(test, msg, PostError)
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def sentinel():
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traceback.print_stack(limit=-1)
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raise SentinelError()
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