61 lines
1.5 KiB
Python
61 lines
1.5 KiB
Python
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"""
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Hook wrapper "result" utilities.
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"""
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import sys
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def _raise_wrapfail(wrap_controller, msg):
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co = wrap_controller.gi_code
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raise RuntimeError(
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"wrap_controller at %r %s:%d %s"
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% (co.co_name, co.co_filename, co.co_firstlineno, msg)
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)
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class HookCallError(Exception):
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"""Hook was called wrongly."""
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class _Result:
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def __init__(self, result, excinfo):
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self._result = result
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self._excinfo = excinfo
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@property
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def excinfo(self):
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return self._excinfo
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@classmethod
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def from_call(cls, func):
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__tracebackhide__ = True
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result = excinfo = None
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try:
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result = func()
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except BaseException:
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excinfo = sys.exc_info()
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return cls(result, excinfo)
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def force_result(self, result):
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"""Force the result(s) to ``result``.
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If the hook was marked as a ``firstresult`` a single value should
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be set otherwise set a (modified) list of results. Any exceptions
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found during invocation will be deleted.
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"""
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self._result = result
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self._excinfo = None
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def get_result(self):
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"""Get the result(s) for this hook call.
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If the hook was marked as a ``firstresult`` only a single value
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will be returned otherwise a list of results.
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"""
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__tracebackhide__ = True
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if self._excinfo is None:
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return self._result
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else:
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ex = self._excinfo
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raise ex[1].with_traceback(ex[2])
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