mirror of
https://github.com/zhigang1992/react-native.git
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81860c59c3
Summary: Fixed compiler warning, after this, seems we have no warning for framework in debug mode. <img width="1280" alt="image" src="https://user-images.githubusercontent.com/5061845/53224564-2d14e980-36b0-11e9-85f4-46304513b18d.png"> [iOS] [Fixed] - Remove compiler warning Pull Request resolved: https://github.com/facebook/react-native/pull/23588 Differential Revision: D14181748 Pulled By: cpojer fbshipit-source-id: 8b633e7cdb7b3b8029f4145a1155e540ac516191
49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
// Copyright (c) Facebook, Inc. and its affiliates.
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// This source code is licensed under the MIT license found in the
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// LICENSE file in the root directory of this source tree.
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#pragma once
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#ifdef WITH_FBSYSTRACE
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#include <fbsystrace.h>
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#endif
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namespace facebook {
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namespace react {
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/**
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* This is a convenience class to avoid lots of verbose profiling
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* #ifdefs. If WITH_FBSYSTRACE is not defined, the optimizer will
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* remove this completely. If it is defined, it will behave as
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* FbSystraceSection, with the right tag provided. Use two separate classes to
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* to ensure that the ODR rule isn't violated, that is, if WITH_FBSYSTRACE has
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* different values in different files, there is no inconsistency in the sizes
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* of defined symbols.
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*/
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#ifdef WITH_FBSYSTRACE
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struct ConcreteSystraceSection {
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public:
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template<typename... ConvertsToStringPiece>
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explicit
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ConcreteSystraceSection(__unused const char* name, __unused ConvertsToStringPiece&&... args)
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: m_section(TRACE_TAG_REACT_CXX_BRIDGE, name, args...)
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{}
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private:
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fbsystrace::FbSystraceSection m_section;
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};
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using SystraceSection = ConcreteSystraceSection;
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#else
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struct DummySystraceSection {
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public:
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template<typename... ConvertsToStringPiece>
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explicit
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DummySystraceSection(__unused const char* name, __unused ConvertsToStringPiece&&... args)
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{}
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};
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using SystraceSection = DummySystraceSection;
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#endif
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}}
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