Add JSC for Bridgless (#38107)

Summary:
Pull Request resolved: #38107

This change makes bridgeless build with JSC and with all the frameworks settings.

## Changelog:
[iOS][Added] Support bridgeless with JSC and frameworks

Reviewed By: philIip

Differential Revision: D47025704

fbshipit-source-id: 5779d3ffd9ed037e6f6dee6c64cc65835f370a5b

packages/react-native/Libraries/AppDelegate/React-RCTAppDelegate.podspec

@@ -75,6 +75,8 @@ Pod::Spec.new do |s|
   }
   s.user_target_xcconfig   = { "HEADER_SEARCH_PATHS" => "\"$(PODS_ROOT)/Headers/Private/React-Core\""}
 
+  use_hermes = ENV['USE_HERMES'] == nil || ENV['USE_HERMES'] == "1"
+
   s.dependency "React-Core"
   s.dependency "RCT-Folly"
   s.dependency "RCTRequired"
@@ -88,13 +90,13 @@ Pod::Spec.new do |s|
 
   if is_new_arch_enabled
     s.dependency "React-BridgelessCore"
-    if ENV['USE_HERMES'] == nil || ENV['USE_HERMES'] == "1"
+    s.dependency "React-BridgelessApple"
+    if use_hermes
       s.dependency "React-BridgelessHermes"
     end
-    s.dependency "React-BridgelessApple"
   end
 
-  if ENV['USE_HERMES'] == nil || ENV['USE_HERMES'] == "1"
+  if use_hermes
     s.dependency "React-hermes"
   else
     s.dependency "React-jsc"

packages/react-native/ReactCommon/react/bridgeless/React-BridgelessApple.podspec

@@ -61,8 +61,9 @@ Pod::Spec.new do |s|
   if ENV["USE_HERMES"] == nil || ENV["USE_HERMES"] == "1"
     s.dependency "hermes-engine"
     s.dependency "React-BridgelessHermes"
+    s.exclude_files = "platform/ios/JSC/*.{mm,h}"
   else
-    s.exclude_files = "platform/ios/Hermes/*.{mm,h}"
     s.dependency "React-jsc"
+    s.exclude_files = "platform/ios/hermes/*.{mm,h}"
   end
 end

packages/react-native/ReactCommon/react/bridgeless/React-BridgelessHermes.podspec

@@ -52,5 +52,6 @@ Pod::Spec.new do |s|
     s.dependency "hermes-engine"
   else
     s.dependency "React-jsc"
+    s.exclude_files = "hermes/*.{cpp,h}"
   end
 end

packages/react-native/ReactCommon/react/bridgeless/platform/ios/Core/RCTJSThreadManager.mm

@@ -7,7 +7,6 @@
 
 #import "RCTJSThreadManager.h"
 
-// #import <PikaOptimizationsMacros/PikaOptimizationsMacros.h>
 #import <React/RCTAssert.h>
 #import <React/RCTCxxUtils.h>
 

packages/react-native/ReactCommon/react/bridgeless/platform/ios/JSC/RCTJscInstance.h

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import <jsi/jsi.h>
+#import <react/bridgeless/JSEngineInstance.h>
+
+namespace facebook {
+namespace react {
+
+class RCTJscInstance : public JSEngineInstance {
+ public:
+  RCTJscInstance();
+
+  std::unique_ptr<jsi::Runtime> createJSRuntime() noexcept override;
+
+  ~RCTJscInstance(){};
+};
+} // namespace react
+} // namespace facebook

packages/react-native/ReactCommon/react/bridgeless/platform/ios/JSC/RCTJscInstance.mm

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import "RCTJscInstance.h"
+#include <jsc/JSCRuntime.h>
+
+namespace facebook {
+namespace react {
+
+RCTJscInstance::RCTJscInstance() {}
+
+std::unique_ptr<jsi::Runtime> RCTJscInstance::createJSRuntime() noexcept
+{
+  return jsc::makeJSCRuntime();
+}
+
+} // namespace react
+} // namespace facebook

packages/react-native/scripts/cocoapods/bridgeless.rb

@@ -7,12 +7,12 @@
 # Set up Bridgeless dependencies
 #
 # @parameter react_native_path: relative path to react-native
-def setup_bridgeless!(react_native_path: "../node_modules/react-native")
+def setup_bridgeless!(react_native_path: "../node_modules/react-native", use_hermes: true)
     pod "React-jsitracing", :path => "#{react_native_path}/ReactCommon/hermes/executor/"
     pod "React-runtimescheduler", :path => "#{react_native_path}/ReactCommon/react/renderer/runtimescheduler"
     pod 'React-BridgelessCore', :path => "#{react_native_path}/ReactCommon/react/bridgeless"
-    if ENV["USE_HERMES"] == nil || ENV["USE_HERMES"] == "1"
+    pod 'React-BridgelessApple', :path => "#{react_native_path}/ReactCommon/react/bridgeless"
+    if use_hermes
         pod 'React-BridgelessHermes', :path => "#{react_native_path}/ReactCommon/react/bridgeless"
     end
-    pod 'React-BridgelessApple', :path => "#{react_native_path}/ReactCommon/react/bridgeless"
 end

packages/react-native/scripts/react_native_pods.rb

@@ -171,7 +171,7 @@ def use_react_native! (
   end
 
   if new_arch_enabled
-    setup_bridgeless!(:react_native_path => prefix)
+    setup_bridgeless!(:react_native_path => prefix, :use_hermes => hermes_enabled)
   end
 
   # Flipper now build in Release mode but it is not linked to the Release binary (as specified by the Configuration option)