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28 lines
1.1 KiB
C++
28 lines
1.1 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_METRICS_USER_METRICS_ACTION_H_
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#define BASE_METRICS_USER_METRICS_ACTION_H_
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namespace base {
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// UserMetricsAction exists purely to standardize on the parameters passed to
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// UserMetrics. That way, our toolset can scan the source code reliable for
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// constructors and extract the associated string constants.
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// WARNING: When using UserMetricsAction you should use a string literal
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// parameter e.g.
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// RecordAction(UserMetricsAction("my action name"));
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// This ensures that our processing scripts can associate this action's hash
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// with its metric name. Therefore, it will be possible to retrieve the metric
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// name from the hash later on.
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// Please see tools/metrics/actions/extract_actions.py for details.
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struct UserMetricsAction {
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const char* str_;
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explicit constexpr UserMetricsAction(const char* str) noexcept : str_(str) {}
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};
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} // namespace base
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#endif // BASE_METRICS_USER_METRICS_ACTION_H_
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