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Made FlutterTaskQueue visible for Swift. #47348

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merged 4 commits into from
Oct 27, 2023

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@gaaclarke gaaclarke commented Oct 26, 2023

fixes flutter/flutter#118832

This makes the FlutterTaskQueue protocol visible, but keeps the dispatch: selector private. Under the covers there are runtime checks to make sure dispatch: is available since we can't have compile time checks anymore.

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We don't have infrastructure to test this currently. I added an issue for it: flutter/flutter#137368

@gaaclarke gaaclarke marked this pull request as ready for review October 26, 2023 21:56
@@ -118,12 +118,16 @@ - (void)dispatch:(dispatch_block_t)block {
FlutterBinaryMessageHandler handler,
NSObject<FlutterTaskQueue>* task_queue) {
FML_CHECK(platform_task_runner_->RunsTasksOnCurrentThread());
// Use `respondsToSelector` instead of `conformsToProtocol` to accomodate
// hacking in your own `FlutterTaskQueue`.
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can you explain more about "hacking in your own FlutterTaskQueue?

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done, injecting is a better description


#import "flutter/shell/platform/darwin/common/framework/Headers/FlutterBinaryMessenger.h"

@protocol FlutterTaskQueueDispatch <FlutterTaskQueue>
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can you add some comments on why we need FlutterTaskQueueDispatch?

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Yep, done.

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LGTM!

@gaaclarke gaaclarke merged commit 1e66c0a into flutter:main Oct 27, 2023
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engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Oct 27, 2023
fluttermirroringbot pushed a commit to flutter/flutter that referenced this pull request Oct 27, 2023
…137442)

flutter/engine@0bba9ee...1e66c0a

2023-10-27 30870216+gaaclarke@users.noreply.github.com Made FlutterTaskQueue visible for Swift. (flutter/engine#47348)

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