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Document logic implemented in ComponentDescriptorRegistry when a component is not found (#51062)

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Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/51062

Document logic implemented in ComponentDescriptorRegistry when a component is not found

changelog: [internal] internal

Reviewed By: arushikesarwani94, cortinico

Differential Revision: D74036572

fbshipit-source-id: 20a5d182e0308538cdfa3f5e97957d488f010f0d
This commit is contained in:
David Vacca
2025-05-02 12:22:32 -07:00
committed by Facebook GitHub Bot
parent 5ae6f6be25
commit 8c231b7d81
1 changed files with 9 additions and 0 deletions
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packages/react-native/ReactCommon/react/renderer/componentregistry/ComponentDescriptorRegistry.cpp
+9
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@@ -85,12 +85,21 @@ const ComponentDescriptor& ComponentDescriptorRegistry::at(
if (it == _registryByName.end()) {
if (ReactNativeFeatureFlags::useFabricInterop()) {
// When interop is enabled, if the component is not found we rely on
// UnstableLegacyViewManagerAutomaticComponentDescriptor to support legacy
// components in new architecture.
auto componentDescriptor = std::make_shared<
const UnstableLegacyViewManagerAutomaticComponentDescriptor>(
parameters_, unifiedComponentName);
registerComponentDescriptor(componentDescriptor);
return *_registryByName.find(unifiedComponentName)->second;
} else {
// When interop is disabled, if the component is not found we rely on
// fallbackComponentDescriptor (default:
// UnimplementedNativeViewComponentDescriptor).
// UnimplementedNativeViewComponentDescriptor displays a View in debug
// mode to alert the developer that the component is not properly
// configured, and an empty view in release mode.
if (_fallbackComponentDescriptor == nullptr) {
throw std::invalid_argument(
("Unable to find componentDescriptor for " + unifiedComponentName)