Do not build JSI in React-jsi when Hermes is enabled, resolve JSI ODR violation (#35038)

Summary:
Pull Request resolved: #35038

React-jsi provides JSI to allow React Native to interface with JavaScriptCore.
The hermes-engine Pod provides a second copy of JSI, as Hermes is built and linked statically with JSI.
This second copy of JSI would lead to an [ODR Violation](https://en.cppreference.com/w/cpp/language/definition).

To resolve this, when Hermes is enabled:
- React-hermes and hermes-engine are installed.
- React-jsc is not installed.
- React-jsi continues to be installed.
- React-jsi will not build JSI.
- React-jsi will declare a dependency on hermes-engine.

The result is that the JSI dependency for React Native is satisfied by hermes-engine, and there is no duplicate JSI library in the project.

When Hermes is disabled:
- React-jsi and React-jsc are installed.
- React-hermes and hermes-engine are not installed.
- React-jsi will build JSI.

Changelog:
[iOS][Changed] Resolve JSI ODR violation, make hermes-engine the JSI provider when Hermes is enabled

Reviewed By: cipolleschi

Differential Revision: D40334913

fbshipit-source-id: 409407a193a35cbd21b0e8778537b3627e4c54a2

Author: hramos

Libraries/Blob/React-RCTBlob.podspec

@@ -42,7 +42,6 @@ Pod::Spec.new do |s|
   s.dependency "React-Codegen", version
   s.dependency "ReactCommon/turbomodule/core", version
   s.dependency "React-jsi", version
-  s.dependency "React-jsc", version
   s.dependency "React-Core/RCTBlobHeaders", version
   s.dependency "React-Core/RCTWebSocket", version
   s.dependency "React-RCTNetwork", version

Libraries/Image/React-RCTImage.podspec

@@ -44,7 +44,6 @@ Pod::Spec.new do |s|
   s.dependency "RCTTypeSafety", version
   s.dependency "ReactCommon/turbomodule/core", version
   s.dependency "React-jsi", version
-  s.dependency "React-jsc", version
   s.dependency "React-Core/RCTImageHeaders", version
   s.dependency "React-RCTNetwork", version
 end

Libraries/LinkingIOS/React-RCTLinking.podspec

@@ -43,5 +43,4 @@ Pod::Spec.new do |s|
   s.dependency "React-Core/RCTLinkingHeaders", version
   s.dependency "ReactCommon/turbomodule/core", version
   s.dependency "React-jsi", version
-  s.dependency "React-jsc", version
 end

Libraries/NativeAnimation/React-RCTAnimation.podspec

@@ -43,6 +43,5 @@ Pod::Spec.new do |s|
   s.dependency "RCTTypeSafety", version
   s.dependency "ReactCommon/turbomodule/core", version
   s.dependency "React-jsi", version
-  s.dependency "React-jsc", version
   s.dependency "React-Core/RCTAnimationHeaders", version
 end

Libraries/Network/React-RCTNetwork.podspec

@@ -44,6 +44,5 @@ Pod::Spec.new do |s|
   s.dependency "RCTTypeSafety", version
   s.dependency "ReactCommon/turbomodule/core", version
   s.dependency "React-jsi", version
-  s.dependency "React-jsc", version
   s.dependency "React-Core/RCTNetworkHeaders", version
 end

Libraries/PushNotificationIOS/React-RCTPushNotification.podspec

@@ -45,5 +45,4 @@ Pod::Spec.new do |s|
   s.dependency "React-Core/RCTPushNotificationHeaders", version
   s.dependency "ReactCommon/turbomodule/core", version
   s.dependency "React-jsi", version
-  s.dependency "React-jsc", version
 end

Libraries/Settings/React-RCTSettings.podspec

@@ -44,6 +44,5 @@ Pod::Spec.new do |s|
   s.dependency "RCTTypeSafety", version
   s.dependency "ReactCommon/turbomodule/core", version
   s.dependency "React-jsi", version
-  s.dependency "React-jsc", version
   s.dependency "React-Core/RCTSettingsHeaders", version
 end

Libraries/Vibration/React-RCTVibration.podspec

@@ -44,6 +44,5 @@ Pod::Spec.new do |s|
   s.dependency "React-Codegen", version
   s.dependency "ReactCommon/turbomodule/core", version
   s.dependency "React-jsi", version
-  s.dependency "React-jsc", version
   s.dependency "React-Core/RCTVibrationHeaders", version
 end

React-Core.podspec

@@ -111,7 +111,6 @@ Pod::Spec.new do |s|
   s.dependency "React-cxxreact", version
   s.dependency "React-perflogger", version
   s.dependency "React-jsi", version
-  s.dependency "React-jsc", version
   s.dependency "React-jsiexecutor", version
   s.dependency "Yoga"
   s.dependency "glog"

React/CoreModules/React-CoreModules.podspec

@@ -44,5 +44,4 @@ Pod::Spec.new do |s|
   s.dependency "React-RCTImage", version
   s.dependency "ReactCommon/turbomodule/core", version
   s.dependency "React-jsi", version
-  s.dependency "React-jsc", version
 end

React/FBReactNativeSpec/FBReactNativeSpec.podspec

@@ -47,7 +47,6 @@ Pod::Spec.new do |s|
   s.dependency "RCTTypeSafety", version
   s.dependency "React-Core", version
   s.dependency "React-jsi", version
-  s.dependency "React-jsc", version
   s.dependency "ReactCommon/turbomodule/core", version
 
   use_react_native_codegen!(s, {

ReactCommon/React-Fabric.podspec

@@ -42,7 +42,6 @@ Pod::Spec.new do |s|
   s.dependency "RCTTypeSafety", version
   s.dependency "ReactCommon/turbomodule/core", version
   s.dependency "React-jsi", version
-  s.dependency "React-jsc", version
 
   s.subspec "animations" do |ss|
     ss.dependency             folly_dep_name, folly_version

ReactCommon/React-bridging.podspec

@@ -40,5 +40,4 @@ Pod::Spec.new do |s|
 
   s.dependency "RCT-Folly", folly_version
   s.dependency "React-jsi", version
-  s.dependency "React-jsc", version
 end

ReactCommon/ReactCommon.podspec

@@ -46,7 +46,6 @@ Pod::Spec.new do |s|
     ss.dependency "React-Core", version
     ss.dependency "React-cxxreact", version
     ss.dependency "React-jsi", version
-    ss.dependency "React-jsc", version
     ss.dependency "RCT-Folly", folly_version
     s.dependency "React-logger", version
     ss.dependency "DoubleConversion"

ReactCommon/cxxreact/React-cxxreact.podspec

@@ -45,6 +45,5 @@ Pod::Spec.new do |s|
   s.dependency "React-runtimeexecutor", version
   s.dependency "React-perflogger", version
   s.dependency "React-jsi", version
-  s.dependency "React-jsc", version
   s.dependency "React-logger", version
 end

ReactCommon/hermes/React-hermes.podspec

@@ -44,7 +44,7 @@ Pod::Spec.new do |s|
                              }.merge!(build_type == :debug ? { "GCC_PREPROCESSOR_DEFINITIONS" => "HERMES_ENABLE_DEBUGGER=1" } : {})
   s.header_dir             = "reacthermes"
   s.dependency "React-cxxreact", version
-  s.dependency "React-jsi", version
+  s.dependency "React-jsidynamic", version
   s.dependency "React-jsiexecutor", version
   s.dependency "React-jsinspector", version
   s.dependency "React-perflogger", version

ReactCommon/jsi/React-jsc.podspec

@@ -29,7 +29,6 @@ Pod::Spec.new do |s|
   s.exclude_files          = "**/test/*"
   s.framework              = "JavaScriptCore"
   s.dependency "React-jsi", version
-
   s.default_subspec        = "Default"
 
   s.subspec "Default" do

ReactCommon/jsi/React-jsi.podspec

@@ -5,6 +5,10 @@
 
 require "json"
 
+js_engine = ENV['USE_HERMES'] == "0" ?
+  :jsc :
+  :hermes
+
 package = JSON.parse(File.read(File.join(__dir__, "..", "..", "package.json")))
 version = package['version']
 
@@ -25,12 +29,19 @@ Pod::Spec.new do |s|
   s.author                 = "Facebook, Inc. and its affiliates"
   s.platforms              = { :ios => "12.4" }
   s.source                 = source
-  s.source_files           = "jsi/*.{cpp,h}"
-  s.exclude_files          = [
-                               "jsi/JSIDynamic.{h,cpp}",
-                               "jsi/jsilib-posix.cpp",
-                               "jsi/jsilib-windows.cpp",
-                               "**/test/*"
-                             ]
-  s.header_dir             = "jsi"
+
+  if js_engine == :jsc
+    s.source_files  = "**/*.{cpp,h}"
+    s.exclude_files = [
+                        "jsi/JSIDynamic.{h,cpp}",
+                        "jsi/jsilib-posix.cpp",
+                        "jsi/jsilib-windows.cpp",
+                        "**/test/*"
+                      ]
+    s.header_dir    = "jsi"
+  elsif js_engine == :hermes
+    # JSI is provided by hermes-engine when Hermes is enabled
+    s.source_files = ""
+    s.dependency "hermes-engine"
+  end
 end

ReactCommon/jsi/React-jsidynamic.podspec

@@ -39,5 +39,4 @@ Pod::Spec.new do |s|
   s.dependency "RCT-Folly", folly_version
   s.dependency "glog"
   s.dependency "React-jsi", version
-  s.dependency "React-jsc", version
 end

ReactCommon/runtimeexecutor/React-runtimeexecutor.podspec

@@ -33,5 +33,4 @@ Pod::Spec.new do |s|
   s.header_dir             = "ReactCommon"
 
   s.dependency "React-jsi", version
-  s.dependency "React-jsc", version
 end

packages/rn-tester/Podfile.lock

@@ -122,6 +122,7 @@ PODS:
   - React-callinvoker (1000.0.0)
   - React-Codegen (1000.0.0):
     - FBReactNativeSpec (= 1000.0.0)
+    - hermes-engine (= 1000.0.0)
     - RCT-Folly (= 2021.07.22.00)
     - RCTRequired (= 1000.0.0)
     - RCTTypeSafety (= 1000.0.0)
@@ -615,26 +616,12 @@ PODS:
     - RCT-Folly (= 2021.07.22.00)
     - RCT-Folly/Futures (= 2021.07.22.00)
     - React-cxxreact (= 1000.0.0)
-    - React-jsi (= 1000.0.0)
+    - React-jsidynamic (= 1000.0.0)
     - React-jsiexecutor (= 1000.0.0)
     - React-jsinspector (= 1000.0.0)
     - React-perflogger (= 1000.0.0)
   - React-jsi (1000.0.0):
-    - boost (= 1.76.0)
-    - DoubleConversion
-    - glog
-    - RCT-Folly (= 2021.07.22.00)
-    - React-jsi/Default (= 1000.0.0)
-  - React-jsi/Default (1000.0.0):
-    - boost (= 1.76.0)
-    - DoubleConversion
-    - glog
-    - RCT-Folly (= 2021.07.22.00)
-  - React-jsi/Fabric (1000.0.0):
-    - boost (= 1.76.0)
-    - DoubleConversion
-    - glog
-    - RCT-Folly (= 2021.07.22.00)
+    - hermes-engine
   - React-jsidynamic (1000.0.0):
     - boost (= 1.76.0)
     - DoubleConversion
@@ -810,7 +797,6 @@ DEPENDENCIES:
   - React-graphics (from `../../ReactCommon/react/renderer/graphics`)
   - React-hermes (from `../../ReactCommon/hermes`)
   - React-jsi (from `../../ReactCommon/jsi`)
-  - React-jsi/Fabric (from `../../ReactCommon/jsi`)
   - React-jsidynamic (from `../../ReactCommon/jsi`)
   - React-jsiexecutor (from `../../ReactCommon/jsiexecutor`)
   - React-jsinspector (from `../../ReactCommon/jsinspector`)
@@ -959,7 +945,7 @@ SPEC CHECKSUMS:
   FlipperKit: cbdee19bdd4e7f05472a66ce290f1b729ba3cb86
   fmt: ff9d55029c625d3757ed641535fd4a75fedc7ce9
   glog: 04b94705f318337d7ead9e6d17c019bd9b1f6b1b
-  hermes-engine: 041c211d43030d9aeff8faa388c019d19e752172
+  hermes-engine: 2c30267d0c2771edc2d369ac694d45f1278ab08b
   libevent: 4049cae6c81cdb3654a443be001fb9bdceff7913
   OpenSSL-Universal: ebc357f1e6bc71fa463ccb2fe676756aff50e88c
   RCT-Folly: 0080d0a6ebf2577475bda044aa59e2ca1f909cda
@@ -968,22 +954,22 @@ SPEC CHECKSUMS:
   React: 8d809d414723bb5763093ddec7658066a21ccabc
   React-bridging: c8806159f8ef90f27443857eed1efdb8c85940e1
   React-callinvoker: 5f16202ad4e45f0607b1fae0f6955a8f7c87eef1
-  React-Codegen: 5adf19af97eb37a7d441c040521191e446255086
-  React-Core: ce4282fb714ffbe444b84d296d1728eaee4d0e9f
+  React-Codegen: d2434d5e4d238bceef25f40c4f58b199eb981ad0
+  React-Core: 3965263aa4b4e1ebf7b4fdb50d2f49ce7bf28f63
   React-CoreModules: 675170bccf156da3a3348e04e2036ce401b2010d
   React-cxxreact: 7276467c246302fedf598cc40d7003896ddb20ba
   React-Fabric: 141459e61c825acf02d26ece099acbd9cbd87b99
   React-graphics: 5ccc9cc0d91794fd42bc1c693e9aea207554bbef
-  React-hermes: 7b9306aee1d58ba030614e54eb8041056119430f
-  React-jsi: c2a71fdc55642893768c517199fb8a71805159dc
+  React-hermes: 0a5145bae4207edf0def8e28fbcb6a8fd6e806c2
+  React-jsi: c24dbcfdf7ea075138b73372387c7f17c0db56ef
   React-jsidynamic: 2b14ac1b6d3a1b7daa1e5a424b98de87da981698
   React-jsiexecutor: 14e899380e3fe9ca74c4e19727540a03e7574721
   React-jsinspector: 7733dd522d044aef87caa39f3eda77593358a7eb
   React-logger: c7960346b021767ed90971aff592a44e3d69f8bb
   React-perflogger: c4fdd48988c2d3047186fc1bc1772d634cfca2ea
   React-RCTActionSheet: 166fd1df85ac10219466b45d12a5884d3eaceac1
   React-RCTAnimation: d6127046c6bb44bd3e67b7503c4ad7f91131b58e
-  React-RCTAppDelegate: 475ca9b80e26c1c4aed93ce04363092fa78cf788
+  React-RCTAppDelegate: e427b692bf829e40f9b318e2a29dca2ab5f36cf6
   React-RCTBlob: 68675c89ebe6edf310dddd0774ba07b685f090a9
   React-RCTFabric: a98a6effece6719669b8c6b4d2c33fb0edddc613
   React-RCTImage: 6de9f0f4402af859849e97cc73a56a52f400f4c9

packages/rn-tester/RCTTest/React-RCTTest.podspec

@@ -44,5 +44,4 @@ Pod::Spec.new do |s|
   s.dependency "React-CoreModules", version
   s.dependency "ReactCommon/turbomodule/core", version
   s.dependency "React-jsi", version
-  s.dependency "React-jsc", version
 end

scripts/cocoapods/__tests__/codegen_utils-test.rb

@@ -39,9 +39,9 @@ def teardown
         Dir.reset()
     end
 
-    # ================================== #
-    # Test - GenerateReactCodegenPodspec #
-    # ================================== #
+    # ================================== #
+    # Test - GenerateReactCodegenPodspec #
+    # ================================== #
 
     def testGenerateReactCodegenPodspec_whenItHasBeenAlreadyGenerated_doesNothing
         # Arrange
@@ -80,18 +80,19 @@ def testGenerateReactCodegenPodspec_whenItHasNotBeenAlreadyGenerated_generatesIt
         assert_true(CodegenUtils.react_codegen_podspec_generated)
     end
 
-    # ========================== #
-    # Test - GetReactCodegenSpec #
-    # ========================== #
+    # ========================== #
+    # Test - GetReactCodegenSpec #
+    # ========================== #
 
     def testGetReactCodegenSpec_whenFabricDisabledAndNoScriptPhases_generatesAPodspec
-        # Arrange
+        # Arrange
         File.files_to_read('package.json' => '{ "version": "99.98.97"}')
 
-        # Act
+        # Act
         podspec = CodegenUtils.new().get_react_codegen_spec(
             'package.json',
             :fabric_enabled => false,
+            :hermes_enabled => true,
             :script_phases => nil
         )
 
@@ -101,13 +102,14 @@ def testGetReactCodegenSpec_whenFabricDisabledAndNoScriptPhases_generatesAPodspe
     end
 
     def testGetReactCodegenSpec_whenFabricEnabledAndScriptPhases_generatesAPodspec
-        # Arrange
+        # Arrange
         File.files_to_read('package.json' => '{ "version": "99.98.97"}')
 
         # Act
         podspec = CodegenUtils.new().get_react_codegen_spec(
             'package.json',
             :fabric_enabled => true,
+            :hermes_enabled => true,
             :script_phases => "echo Test Script Phase"
         )
 
@@ -117,11 +119,11 @@ def testGetReactCodegenSpec_whenFabricEnabledAndScriptPhases_generatesAPodspec
     end
 
     # =============================== #
-    # Test - GetCodegenConfigFromFile #
-    # =============================== #
+    # Test - GetCodegenConfigFromFile #
+    # =============================== #
 
     def testGetCodegenConfigFromFile_whenFileDoesNotExists_returnEmpty
-        # Arrange
+        # Arrange
 
         # Act
         codegen = CodegenUtils.new().get_codegen_config_from_file('package.json', 'codegenConfig')
@@ -131,7 +133,7 @@ def testGetCodegenConfigFromFile_whenFileDoesNotExists_returnEmpty
     end
 
     def testGetCodegenConfigFromFile_whenFileExistsButHasNoKey_returnEmpty
-        # Arrange
+        # Arrange
         File.mocked_existing_files(['package.json'])
         File.files_to_read('package.json' => '{ "codegenConfig": {}}')
 
@@ -143,7 +145,7 @@ def testGetCodegenConfigFromFile_whenFileExistsButHasNoKey_returnEmpty
     end
 
     def testGetCodegenConfigFromFile_whenFileExistsAndHasKey_returnObject
-        # Arrange
+        # Arrange
         File.mocked_existing_files(['package.json'])
         File.files_to_read('package.json' => '{ "codegenConfig": {"name": "MySpec"}}')
 
@@ -217,7 +219,7 @@ def testGetListOfJSSpecs_whenDoesNotUsesLibraries_returnAListOfFiles
 
     # ================================== #
     # Test - GetReactCodegenScriptPhases #
-    # ================================== #
+    # ================================== #
 
     def testGetReactCodegenScriptPhases_whenAppPathNotDefined_abort
         # Arrange
@@ -370,9 +372,9 @@ def testUseReactCodegenDiscovery_whenParametersAreGood_executeCodegen
         ])
     end
 
-    # ============================= #
-    # Test - CleanUpCodegenFolder #
-    # ============================= #
+    # ============================= #
+    # Test - CleanUpCodegenFolder #
+    # ============================= #
 
     def testCleanUpCodegenFolder_whenCleanupDone_doNothing
         # Arrange
@@ -463,7 +465,7 @@ def get_podspec_no_fabric_no_script
             "RCTTypeSafety": ["99.98.97"],
             "React-Core": ["99.98.97"],
             "React-jsi": ["99.98.97"],
-            "React-jsc": ["99.98.97"],
+            "hermes-engine": ["99.98.97"],
             "ReactCommon/turbomodule/core": ["99.98.97"]
           }
         }