[pull] master from facebook:master#102
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pull[bot] merged 3 commits intodavidvmckay:masterfrom Mar 25, 2020
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Summary: The bridge complains if modules aren't exported, which isn't really helpful with lazily loaded modules and turbo modules. I considered only turning this off when TurboModules is enabled, but figured we'd be killing this soon anyways... If anyone feels strongly I can go that approach. Changelog: [iOS][Internal] Remove RCTExportModule log spam Reviewed By: shergin Differential Revision: D20629575 fbshipit-source-id: d32d9fe244c4d06acfee982fca7c7f63da294dc5
Summary: ## Problems Repro steps: 1. Disable Fabric (because CMD + R doesn't work with Fabric right now). 2. Open up Marketplace and hit `CMD + OPT + R` 3. **Observe:** The progress bar doesn't show up right away. It also doesn't actually show progress. https://pxl.cl/140g1 RN Support post: https://fb.workplace.com/groups/rn.support/permalink/3437652016283389/ ## Fixes The first problem is that progress bar doesn't actually show progress. **Fix:** Bundle load progress is updated in `RCTCxxBridge`, where we first require `RCTDevLoadingView`, and then call its `updateProgress` method. Previously, we wouldn't lazily load `RCTDevLoadingView`, it already didn't exist. Lazily loading `RCTDevLoadingView` causes the progress view to show up. Here: https://pxl.cl/140gt If you look at the above video, you'll notice there are two stages to the progress bar: stage 1 displays the actual progress. Stage 2 prompts that we're downloading the JS bundle. As you can see, stage 1 and stage 2 have different background colors, even though both of them are green. **Fix:** I adjusted the JS to match the Native color. Here: https://pxl.cl/140gT We're almost there, but the progress bar is dismissed twice? **Fix:** I dug into the code, and the reason why was because when we hit `CMD + R`, we invalidate the bridge, and immediately re-initialize it. This means that we asynchronously invalidate the old TurboModuleManager, and immediately create a brand new one. Therefore, two `RCTDevLoadingView` modules can (and do) exist at once. So, I moved `RCTDevLoadingView` to be an instance member of `FBReactModule`, to ensure that it doesn't get cleaned up and re-created when TurboModuleManager is deleted and re-created. This finally fixed the progress bar jank: https://pxl.cl/140hn Changelog: [iOS][Fixed] - Remove RCTDevLoadingView jank Reviewed By: rickhanlonii Differential Revision: D20607815 fbshipit-source-id: 05825c67adaf3cfda70be0fa2dc92d413dc8921b
Summary: Logbox has a retain cycle (see linked task for my deeper investigation). This diff doesn't fix the retain cycle, but it's just good practice to not retain self strongly in blocks. Changelog: [iOS][Internal] Fix retaining self in block in LogBox implementation Reviewed By: shergin Differential Revision: D20630693 fbshipit-source-id: cf399495e9bcd1917932fcc0e9c9d2d2a32bf6f0
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