58f0cca7c7
Summary: @public Adds a class for triggering markers. This calls `startMarker()` on construction, and `endMarker()` on destruction, thus being usable like a "scope guard": the object is instantiated, and automatically destroyed when going out of scope. Reviewed By: SidharthGuglani Differential Revision: D13817589 fbshipit-source-id: fd88884af970c1c0933d9ca6843f3f8f5d28b9e6
45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the LICENSE
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* file in the root directory of this source tree.
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*/
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#include "YGConfig.h"
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#include "YGMarker.h"
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#include "YGNode.h"
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namespace facebook {
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namespace yoga {
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namespace marker {
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template <YGMarker MarkerType>
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class MarkerSection {
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public:
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MarkerSection(YGNodeRef node) : MarkerSection{node, node->getConfig()} {}
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~MarkerSection() {
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if (endMarker_) {
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endMarker_(MarkerType, node_, {&data}, userData_);
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}
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}
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typename detail::MarkerData<MarkerType>::type data = {};
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private:
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decltype(YGMarkerCallbacks{}.endMarker) endMarker_;
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YGNodeRef node_;
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void* userData_;
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MarkerSection(YGNodeRef node, YGConfigRef config)
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: MarkerSection{node, config ? &config->markerCallbacks : nullptr} {}
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MarkerSection(YGNodeRef node, YGMarkerCallbacks* callbacks)
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: endMarker_{callbacks ? callbacks->endMarker : nullptr},
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node_{node},
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userData_{callbacks && callbacks->startMarker
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? callbacks->startMarker(MarkerType, node, {&data})
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: nullptr} {}
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};
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} // namespace marker
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} // namespace yoga
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} // namespace facebook
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