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68 lines
2.1 KiB
68 lines
2.1 KiB
4 months ago
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#!/usr/bin/env python3
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#
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# Copyright 2019, The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Helper util libraries for debug printing."""
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import sys
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DEBUG = False
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def debug_print(*args, **kwargs):
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"""Prints the args to sys.stderr if the DEBUG is set."""
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if DEBUG:
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print(*args, **kwargs, file=sys.stderr)
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def error_print(*args, **kwargs):
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print('[ERROR]:', *args, file=sys.stderr, **kwargs)
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def _expand_gen_repr(args):
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"""Like repr but any generator-like object has its iterator consumed
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and then called repr on."""
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new_args_list = []
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for i in args:
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# detect iterable objects that do not have their own override of __str__
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if hasattr(i, '__iter__'):
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to_str = getattr(i, '__str__')
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if to_str.__objclass__ == object:
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# the repr for a generator is just type+address, expand it out instead.
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new_args_list.append([_expand_gen_repr([j])[0] for j in i])
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continue
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# normal case: uses the built-in to-string
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new_args_list.append(i)
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return new_args_list
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def debug_print_gen(*args, **kwargs):
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"""Like _debug_print but will turn any iterable args into a list."""
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if not DEBUG:
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return
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new_args_list = _expand_gen_repr(args)
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debug_print(*new_args_list, **kwargs)
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def debug_print_nd(*args, **kwargs):
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"""Like _debug_print but will turn any NamedTuple-type args into a string."""
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if not DEBUG:
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return
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new_args_list = []
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for i in args:
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if hasattr(i, '_field_types'):
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new_args_list.append("%s: %s" % (i.__name__, i._field_types))
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else:
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new_args_list.append(i)
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debug_print(*new_args_list, **kwargs)
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