52 lines
1.8 KiB
Python
52 lines
1.8 KiB
Python
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# coding=utf8
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from functools import wraps
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import traceback
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import re
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import sys
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from UltiSnips import _vim
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def wrap(func):
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"""Decorator that will catch any Exception that 'func' throws and displays
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it in a new Vim scratch buffer."""
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@wraps(func)
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def wrapper(self, *args, **kwds):
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try:
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return func(self, *args, **kwds)
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except Exception as e: # pylint: disable=bare-except
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msg = \
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"""An error occured. This is either a bug in UltiSnips or a bug in a
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snippet definition. If you think this is a bug, please report it to
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https://github.com/SirVer/ultisnips/issues/new.
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Following is the full stack trace:
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"""
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msg += traceback.format_exc()
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if hasattr(e, 'snippet_info'):
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msg += "\nSnippet, caused error:\n"
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msg += re.sub(
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'^(?=\S)', ' ', e.snippet_info, flags=re.MULTILINE
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)
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# snippet_code comes from _python_code.py, it's set manually for
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# providing error message with stacktrace of failed python code
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# inside of the snippet.
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if hasattr(e, 'snippet_code'):
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_, _, tb = sys.exc_info()
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tb_top = traceback.extract_tb(tb)[-1]
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msg += "\nExecuted snippet code:\n"
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lines = e.snippet_code.split("\n")
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for number, line in enumerate(lines, 1):
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msg += str(number).rjust(3)
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prefix = " " if line else ""
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if tb_top[1] == number:
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prefix = " > "
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msg += prefix + line + "\n"
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# Vim sends no WinLeave msg here.
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if hasattr(self, '_leaving_buffer'):
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self._leaving_buffer() # pylint:disable=protected-access
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_vim.new_scratch_buffer(msg)
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return wrapper
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