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Diffstat (limited to 'src/common/debug.h')
-rw-r--r-- | src/common/debug.h | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/src/common/debug.h b/src/common/debug.h deleted file mode 100644 index bc21c74..0000000 --- a/src/common/debug.h +++ /dev/null @@ -1,98 +0,0 @@ -// Copyright (C) 2018 The Android Open Source Project -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include <ostream> - -namespace iorap { - -// kIsDebugBuild is special. -// It gets to be in the 'iorap' namespace -// so that different modules don't need to qualify it. -#ifndef NDEBUG -static constexpr bool kIsDebugBuild = true; -#else -static constexpr bool kIsDebugBuild = false; -#endif - -namespace common { - -// TODO: move below code to helpers. -template <typename T, bool> -struct base_if_condition {}; - -template <typename T> -struct base_if_condition<T, true> : public T {}; - -template <typename T> -using base_if_debug = base_if_condition<T, kIsDebugBuild>; - -namespace detail { -// "if constexpr" doesn't allow us to exclude fields from a struct/class, -// and also "if constexpr" doesn't allow us to reference a field that does not -// exist. -// so we must move everything into a separate base class. -template <bool kIsDebug = kIsDebugBuild> -struct DebugCounterBase { - constexpr size_t value() const { - return counter; - } - - constexpr void set_value(size_t value) { - counter = value; - } - - size_t counter{1}; // Don't start with 0. -}; - -template <> -struct DebugCounterBase<false /*kIsDebug*/> { - constexpr size_t value() const { - return 0; - } - - constexpr void set_value(size_t value) { - } -}; -} // namespace detail - -// This counter does absolutely nothing, the code compiles to no-ops -// when debugging is disabled. -struct DebugCounter : detail::DebugCounterBase<> { - constexpr DebugCounter& operator++() { - set_value(value() + 1); - return *this; - } - - constexpr DebugCounter operator++(int) { - DebugCounter now = *this; - set_value(value() + 1); - return now; - } - - constexpr operator size_t() const { - return value(); - } - - friend std::ostream& operator<<(std::ostream& os, DebugCounter counter); -}; - -inline std::ostream& operator<<(std::ostream& os, DebugCounter counter) { - os << counter.value(); - return os; -} - -// TODO: refactor DebugCounter and base traits into their own files? - -} // namespace common -} // namespace iorap |