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44 lines
1.6 KiB
Python
44 lines
1.6 KiB
Python
#===----------------------------------------------------------------------===##
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#
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# The LLVM Compiler Infrastructure
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#
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# This file is dual licensed under the MIT and the University of Illinois Open
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# Source Licenses. See LICENSE.TXT for details.
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#
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#===----------------------------------------------------------------------===##
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import os
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import inspect
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def trace_function(function, log_calls, log_results, label=''):
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def wrapper(*args, **kwargs):
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kwarg_strs = ['{}={}'.format(k, v) for (k, v) in kwargs]
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arg_str = ', '.join([str(a) for a in args] + kwarg_strs)
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call_str = '{}({})'.format(function.func_name, arg_str)
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# Perform the call itself, logging before, after, and anything thrown.
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try:
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if log_calls:
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print('{}: Calling {}'.format(label, call_str))
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res = function(*args, **kwargs)
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if log_results:
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print('{}: {} -> {}'.format(label, call_str, res))
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return res
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except Exception as ex:
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if log_results:
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print('{}: {} raised {}'.format(label, call_str, type(ex)))
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raise ex
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return wrapper
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def trace_object(obj, log_calls, log_results, label=''):
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for name, member in inspect.getmembers(obj):
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if inspect.ismethod(member):
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# Skip meta-functions, decorate everything else
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if not member.func_name.startswith('__'):
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setattr(obj, name, trace_function(member, log_calls,
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log_results, label))
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return obj
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