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76 lines
2.0 KiB
C++
76 lines
2.0 KiB
C++
// Copyright 2013 The Flutter 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 ACCESSIBILITY_BASE_LOGGING_H_
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#define ACCESSIBILITY_BASE_LOGGING_H_
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#include <sstream>
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#include "macros.h"
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namespace base {
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class LogMessageVoidify {
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public:
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void operator&(std::ostream&) {}
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};
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class LogMessage {
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public:
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LogMessage(const char* file,
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int line,
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const char* condition,
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bool killProcess);
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~LogMessage();
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std::ostream& stream() { return stream_; }
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private:
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std::ostringstream stream_;
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const char* file_;
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const int line_;
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const bool killProcess_;
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BASE_DISALLOW_COPY_AND_ASSIGN(LogMessage);
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};
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[[noreturn]] void KillProcess();
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} // namespace base
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#define BASE_LOG_STREAM() \
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::base::LogMessage(__FILE__, __LINE__, nullptr, false).stream()
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#define BASE_LAZY_STREAM(stream, condition) \
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!(condition) ? (void)0 : ::base::LogMessageVoidify() & (stream)
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#define BASE_EAT_STREAM_PARAMETERS(ignored) \
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true || (ignored) \
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? (void)0 \
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: ::base::LogMessageVoidify() & \
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::base::LogMessage(0, 0, nullptr, !(ignored)).stream()
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#define BASE_LOG() BASE_LAZY_STREAM(BASE_LOG_STREAM(), true)
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#define BASE_CHECK(condition) \
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BASE_LAZY_STREAM( \
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::base::LogMessage(__FILE__, __LINE__, #condition, true).stream(), \
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!(condition))
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#ifndef NDEBUG
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#define BASE_DLOG() BASE_LOG()
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#define BASE_DCHECK(condition) BASE_CHECK(condition)
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#else
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#define BASE_DLOG() BASE_EAT_STREAM_PARAMETERS(true)
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#define BASE_DCHECK(condition) BASE_EAT_STREAM_PARAMETERS(condition)
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#endif
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#define BASE_UNREACHABLE() \
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{ \
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BASE_LOG() << "Reached unreachable code."; \
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::base::KillProcess(); \
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}
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#endif // ACCESSIBILITY_BASE_LOGGING_H_
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