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https://github.com/zhigang1992/react-native.git
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832164169d
Summary: Registries, providers, providers of registries, registres of providers. All that can be really confusing, but that represents best the constraints and desires that we have: * We need to be able to register components on-the-fly (so we need a mechanism that will propagate changes); * We don't want to register ComponentDescriptors separately from ComponentView classes; * C++ not always gives us abstractions that we want (e.g. pointers to constructors). After the change, we can remove the whole Buck target that has a bunch of handwritten boilerplate code. There is a still room for polish and removing some concepts, types or classes but this diff is already huge. Reviewed By: JoshuaGross Differential Revision: D14983906 fbshipit-source-id: ce536ebea0c905059c7a4d644dc25233e2809761
60 lines
1.5 KiB
C++
60 lines
1.5 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
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* LICENSE file in the root directory of this source tree.
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*/
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#include "ComponentDescriptorProviderRegistry.h"
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namespace facebook {
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namespace react {
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void ComponentDescriptorProviderRegistry::add(
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ComponentDescriptorProvider provider) const {
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std::unique_lock<better::shared_mutex> lock(mutex_);
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componentDescriptorProviders_.insert({provider.handle, provider});
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for (auto const &weakRegistry : componentDescriptorRegistries_) {
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auto registry = weakRegistry.lock();
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if (!registry) {
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continue;
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}
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registry->add(provider);
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}
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}
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void ComponentDescriptorProviderRegistry::remove(
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ComponentDescriptorProvider provider) const {
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std::unique_lock<better::shared_mutex> lock(mutex_);
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componentDescriptorProviders_.erase(provider.handle);
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for (auto const &weakRegistry : componentDescriptorRegistries_) {
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auto registry = weakRegistry.lock();
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if (!registry) {
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continue;
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}
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registry->remove(provider);
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}
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}
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ComponentDescriptorRegistry::Shared
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ComponentDescriptorProviderRegistry::createComponentDescriptorRegistry(
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ComponentDescriptorParameters const ¶meters) const {
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std::shared_lock<better::shared_mutex> lock(mutex_);
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auto registry =
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std::make_shared<ComponentDescriptorRegistry const>(parameters);
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for (auto const &pair : componentDescriptorProviders_) {
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registry->add(pair.second);
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}
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return registry;
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}
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} // namespace react
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} // namespace facebook
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