Summary: public
Fixes#3953
Bail out soon when the profiler is not running + move string formating into the macro so that it happens in a background queue.
Reviewed By: jspahrsummers
Differential Revision: D2696167
fb-gh-sync-id: a1b91ee4459078ab9a4c0be62bd23362ec05e208
Summary: public
The `bridge.modules` dictionary provides access to all native modules, but this API requires that every module is initialized in advance so that any module can be accessed.
This diff introduces a better API that will allow modules to be initialized lazily as they are needed, and deprecates `bridge.modules` (modules that use it will still work, but should be rewritten to use `bridge.moduleClasses` or `-[bridge moduleForName/Class:` instead.
The rules are now as follows:
* Any module that overrides `init` or `setBridge:` will be initialized on the main thread when the bridge is created
* Any module that implements `constantsToExport:` will be initialized later when the config is exported (the module itself will be initialized on a background queue, but `constantsToExport:` will still be called on the main thread.
* All other modules will be initialized lazily when a method is first called on them.
These rules may seem slightly arcane, but they have the advantage of not violating any assumptions that may have been made by existing code - any module written under the original assumption that it would be initialized synchronously on the main thread when the bridge is created should still function exactly the same, but modules that avoid overriding `init` or `setBridge:` will now be loaded lazily.
I've rewritten most of the standard modules to take advantage of this new lazy loading, with the following results:
Out of the 65 modules included in UIExplorer:
* 16 are initialized on the main thread when the bridge is created
* A further 8 are initialized when the config is exported to JS
* The remaining 41 will be initialized lazily on-demand
Reviewed By: jspahrsummers
Differential Revision: D2677695
fb-gh-sync-id: 507ae7e9fd6b563e89292c7371767c978e928f33
Summary: Exception message was the last part of the whole shown error. This is not optimal in case where there are deeply nested objects as parameters, which used to be displayed before the message.
This diff moves the exception message to the front.
public
Reviewed By: javache
Differential Revision: D2691426
fb-gh-sync-id: c6c9ad3ac4681a8102ea2c580f24382640b7246c
Summary: public
RFC: The minifier haven't been stripping dead-code, and it also can't kill unused
modules, so as a temporary solution this inlines `__DEV__`, kill dead branches
and kill dead modules. For now I'm just white-listing the dev variable, but we
could definitely do better than that, but as a temporary fix this should be
helpful.
I also intend to kill some dead variables, so we can kill unused requires,
although inline-requires can also fix it.
Reviewed By: vjeux
Differential Revision: D2605454
fb-gh-sync-id: 50acb9dcbded07a43080b93ac826a5ceda695936
Summary: I changed the format slightly of the exception being generated in RCTFatal, so we we're catching and rethrowing it, which left some useful information of the error stack.
public
Reviewed By: majak
Differential Revision: D2631341
fb-gh-sync-id: feb4939f58014171a55cd74f20f57bcd6dfddc1e
Summary: public
Rename it to `RCT_PROFILE_(BEGIN|END)_EVENT` to make it clearer that it's a macro,
since it has special behaviours.
Reviewed By: jspahrsummers
Differential Revision: D2631542
fb-gh-sync-id: 629c139462c4aa3582f719b14482017d13676e33
Summary: public
As jspahrsumemrs pointed out, `int` could overflow pretty easy, since it was static,
change it to an NSUInteger and downcast it when need to interop.
Reviewed By: jspahrsummers
Differential Revision: D2625902
fb-gh-sync-id: 2052be47a7b0ed81484da004fa18d6ef5baf26f7
Summary: public
There were some old markers that are now automatically inject and now are no longer necessary (+ one that was missing an end call :( ))
Reviewed By: javache
Differential Revision: D2625901
fb-gh-sync-id: 4c4c9d6b4e8e2b4bdb9c64fde01000b0ca2e9f47
Summary: public
Add RCTFatal for reporting fatal runtime conditions. This centralizes failure handling to one function and allows you to customize how they should be handled. RCTFatal will be logged to the console and as a redbox and will also be triggered by fatal exceptions coming from RCTExceptionsManager.
Note that there is no RCTLogFatal, since just logging the fatal condition does not allow us to handle it consistently.
Reviewed By: nicklockwood
Differential Revision: D2615490
fb-gh-sync-id: 7d8e134419e10a8fb549297054ad955db3f6bee0
Summary: public
The initial implementation used a lock to manage the stored profile information,
blocking the caller thread for longer than it should. Replace it with a private
queue, since the only thing we need to from the caller is to record the immediate
call time and the caller thread/queue, all the rest has absolutely no priority.
Use macros to also defer work done when generate the name of the events.
Reviewed By: nicklockwood
Differential Revision: D2603120
fb-gh-sync-id: e3e36160c893e7ae9ed3558f07c854ea76396661
Summary: public
Added lightweight genarics annotations to make the code more readable and help the compiler catch bugs.
Fixed some type bugs and improved bridge validation in a few places.
Reviewed By: javache
Differential Revision: D2600189
fb-gh-sync-id: f81e22f2cdc107bf8d0b15deec6d5b83aacc5b56
Summary: public
At some point the profile call was changed to only pass `@"invoke callback"`
rather than the module name, which makes most entries pretty much useless.
Change it back to be the module name.
Reviewed By: javache
Differential Revision: D2602222
fb-gh-sync-id: c4e8e3f559f66725620293cc575baf5ede48df31
Summary: public
The dev mode override feature was built with the assumption that bunlded JS would be minified, and broke with unminified JS. This fixes that by using a more robust regex-based search.
Reviewed By: tadeuzagallo
Differential Revision: D2581240
fb-gh-sync-id: 4d4b45eb8573ceb956b7259550d80a9807f83d59
Summary: public
Kill `RCTPerfStats` and introduce the new `RCTPerfMonitor`, including memory
usage, JSC heap size, number of RN views in screen, FPS (both on UI and JS threads)
and more to come.
It removes all the previous traces that were previous spread across the bridge
and the dev menu and moves everything to be more contained, so the whole thing
can be safely striped in production.
Reviewed By: nicklockwood
Differential Revision: D2575158
fb-gh-sync-id: 6a6d0c4422adbddeeefddd32ec3409a7095ff2a9
Summary: public
Use arrays instead of dictionaries for encoding module method information.
This further reduces UIExplorer startup JSON from 16104 bytes to 14119 (12% reduction)
Reviewed By: javache
Differential Revision: D2570057
fb-gh-sync-id: 4a53a9ead4365a136e7caeb650375733e1c24c0e
Summary: public
We're sending a lot of module config data when the app first starts, and much of this is redundant.
UIExplorer current sends 19061 bytes of module config JSON. This diff reduces that to 16104 (15% saving) by stripping modules that have no methods or constants, and removing method types unless method is async.
Reviewed By: tadeuzagallo, javache
Differential Revision: D2570010
fb-gh-sync-id: 8c0abbd1cdee3264b37a4f52e852008caaffb9c5
Summary: public
Implement the iOS side of the optmisation previously implemented in android
(D2485402)
Depends on D2540746
Reviewed By: javache
Differential Revision: D2541118
fb-gh-sync-id: f3590600a6defa2da75c5b7b2cced6ad8bfea6cb
Summary: public
Benchmarking our startup path has shown we spend a lot of time decoding strings (iPhone 4S / iPhone 5):
* reading a 2MB JS bundle: 35ms / 15ms
* decoding is to an `NSString`: 186ms / 78ms
* transforming that to a `JSString`: 29ms / 10ms
Instead of going through an `NSString` transformation, we generate a null-terminated bundle (0.1ms / 0.05ms to copy the data) and use `JSStringCreateWithUTF8CString` (121ms / 53ms) to generate the string. That makes decoding 70% faster.
Reviewed By: javache
Differential Revision: D2541140
fb-gh-sync-id: 09a016b8edfd46a9b62682c76705564d2024e75e
Summary: @public
When de-batching the calls from native -> JS, some calls were being dispatched
before the bridge had finished loading, which would cause lost calls when running
on the `ContextExecutor` and redbox when running in the Chrome debugger
Reviewed By: @javache
Differential Revision: D2540746
fb-gh-sync-id: ece29406648d3cbcb42cef3b32b8774ff0c15fd8
Summary: @public
Take a step back and de-batch the bridge calls so we can have better profiling data and a better starting point to work on future optimisations. Also gave a 10~15% win on first render.
Reviewed By: @javache
Differential Revision: D2493674
fb-gh-sync-id: 05165fdd00645bdf43e844bb0c4300a2f63e7038
Summary: I noticed that sometimes the batched bridge would be valid before `[self enqueueApplicationScript:url:onComplete:]` but then become invalid in the completion callback. This diff checks `self.isValid` inside of the callback.
Closes https://github.com/facebook/react-native/pull/2016
Reviewed By: @trunkagent, @jspahrsummers
Differential Revision: D2443438
Pulled By: @tadeuzagallo
Summary: @public
When using bundled JS the `__DEV__` flag is set to false by default, which can cause errors to be missed if used for testing. This diff adds logic to override the `__DEV__` value when running in RCT_DEBUG configuration, so that the JS debug checks are enabled.
Reviewed By: @tadeuzagallo
Differential Revision: D2429533
Summary: @public
Migrate scripts to open source and add new route on the packager
to directly convert profiler outputs to a devtools compatible format.
Reviewed By: @jspahrsummers
Differential Revision: D2425740
Summary:
Previously the bridge sometimes never fired RCTJavaScriptDidLoadNotification or RCTJavaScriptDidFailToLoadNotification if there was an error (for example, if the source code loaded but we couldn't inject the JSON config). This diff moves the error handling into a method called `stopLoadingWithError` that the bridge can call whenever there is an error.
Also if the script failed to load, the BatchedBridge still called `executeSourceCode`. With this diff the `_loading` flag is set to NO when the script fails to load, and `executeSourceCode` returns immediately when `_loading` is false. This way the bridge does not try to execute JS when there is a loading error.
Closes https://github.com/facebook/react-native/pull/2520
Github Author: James Ide <ide@jameside.com>
Summary:
When bridge calls are made, they should be dispatched to their
destination GCD queue in the same order they were made. (It
looks like this invariant broke in 336e18d, which caused call
order to depend on the iteration of `NSMapTable` keys
whenever there are calls to multiple modules that share a queue)
Fixes#1941 (in which RCTUIManager createView addUIBlock
blocks were sometimes running after other blocks that depended
on them)
I'm a react-native/iOS/objc newbie, so please excuse any
ignorance this commit may well contain :)
Closes https://github.com/facebook/react-native/pull/2488
Github Author: Ted Suzman <ted@suzman.net>
Tadeu Zagallo
Nick Lockwood
Martin Kralik
Pieter De Baets
Pawel Sienkowski
David Aurelio
Frédéric Sagnes
Alexey Lang
Abhishek Sood
James Ide
Marc Horowitz
Ted Suzman
Christopher Chedeau