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# Copyright 2024 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
""" The module to provide measurements when it's supported. """
import os
import sys
from contextlib import AbstractContextManager
from common import DIR_SRC_ROOT
PROTO_DIR = os.path.abspath(
os.path.join(DIR_SRC_ROOT, 'build', 'util', 'lib', 'proto'))
if os.path.isdir(PROTO_DIR):
sys.path.append(PROTO_DIR)
# pylint: disable=import-error, unused-import
from measures import average, clear, count, data_points, dump, tag, \
time_consumption
else:
class Dummy(AbstractContextManager):
"""Dummy implementation when measures components do not exist."""
# pylint: disable=no-self-use
def record(self, *_) -> None:
"""Dummy implementation of Measure.record."""
# pylint: disable=no-self-use
def dump(self) -> None:
"""Dummy implementation of Measure.dump."""
# Shouldn't be called.
assert False
# pylint: disable=no-self-use
def __enter__(self) -> None:
pass
# pylint: disable=no-self-use
def __exit__(self, *_) -> bool:
return False
def average(*_) -> Dummy:
"""Dummy implementation of measures.average."""
return Dummy()
def count(*_) -> Dummy:
"""Dummy implementation of measures.count."""
return Dummy()
def clear(*_) -> None:
"""Dummy implementation of measures.clear."""
def data_points(*_) -> Dummy:
"""Dummy implementation of measures.data_points."""
return Dummy()
def time_consumption(*_) -> Dummy:
"""Dummy implementation of measures.time_consumption."""
return Dummy()
def dump(*_) -> None:
"""Dummy implementation of measures.dump."""
def tag(*_) -> None:
"""Dummy implementation of measures.tag."""