feat: RawPropsParser add useRawPropsJsiValue parameter (facebook#…

…48231)

Summary:
In this PR we added a change that allows the RawPropsParser to construct its RawValues directly from the `jsi::Value` instead of converting it to `folly::dynamic` first.
We added a global feature flag to turn this on, however, for migrations it might be better to use this functionality as an opt-in on a component basis. With this change `ComponentDescriptors` can now create their RawPropsParser instance with the `useRawPropsJsiValue` flag to opt into it.

(Note: a few more changes are needed to make this accessible to the `ComponentDescriptor`, for which I opened [this follow up PR here](facebook#48232))

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[INTERNAL] [ADDED] - Added `useRawPropsJsiValue` parameter to `RawPropsParser` to opt into skipping folly::dynamic conversions during prop parsing.

Pull Request resolved: facebook#48231

Test Plan: Internal change / just make sure all tests are passing.

Reviewed By: NickGerleman

Differential Revision: D67139641

Pulled By: javache

fbshipit-source-id: 5b243edb8149870aad0a5a1b3998ee67997783d7

packages/react-native/ReactCommon/react/renderer/core/RawPropsParser.cpp

@@ -8,7 +8,6 @@
 #include "RawPropsParser.h"
 
 #include <react/debug/react_native_assert.h>
-#include <react/featureflags/ReactNativeFeatureFlags.h>
 #include <react/renderer/core/RawProps.h>
 
 #include <glog/logging.h>
@@ -138,7 +137,7 @@ void RawPropsParser::preparse(const RawProps& rawProps) const noexcept {
 
         auto value = object.getProperty(runtime, nameValue);
         RawValue rawValue;
-        if (ReactNativeFeatureFlags::useRawPropsJsiValue()) {
+        if (useRawPropsJsiValue_) {
           rawValue = RawValue(runtime, std::move(value));
         } else {
           rawValue = RawValue(jsi::dynamicFromValue(runtime, value));

packages/react-native/ReactCommon/react/renderer/core/RawPropsParser.h

@@ -7,6 +7,7 @@
 
 #pragma once
 
+#include <react/featureflags/ReactNativeFeatureFlags.h>
 #include <react/renderer/core/Props.h>
 #include <react/renderer/core/PropsParserContext.h>
 #include <react/renderer/core/RawProps.h>
@@ -26,8 +27,12 @@ class RawPropsParser final {
   /*
    * Default constructor.
    * To be used by `ConcreteComponentDescriptor` only.
+   * If `useRawPropsJsiValue` is `true`, the parser will use `jsi::Value`
+   * directly for RawValues instead of converting them to `folly::dynamic`.
    */
-  RawPropsParser() = default;
+  RawPropsParser(
+      bool useRawPropsJsiValue = ReactNativeFeatureFlags::useRawPropsJsiValue())
+      : useRawPropsJsiValue_(useRawPropsJsiValue){};
 
   /*
    * To be used by `ConcreteComponentDescriptor` only.
@@ -56,6 +61,7 @@ class RawPropsParser final {
   template <class ShadowNodeT>
   friend class ConcreteComponentDescriptor;
   friend class RawProps;
+  bool useRawPropsJsiValue_{false};
 
   /*
    * To be used by `RawProps` only.