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Add flags to make App.framework work in app extension#123618

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jmagman:app-extension-tool
Mar 28, 2023
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Add flags to make App.framework work in app extension#123618
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jmagman:app-extension-tool

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@jmagman jmagman commented Mar 28, 2023

When linking or compiling App.framework for iOS or macOS add the -fapplication-extension flag which marks the executable as "safe" to use in an iOS or macOS app extension.

Part of #16092

See https://flutter.dev/go/app-extensions.

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@jmagman jmagman self-assigned this Mar 28, 2023
@flutter-dashboard flutter-dashboard bot added the tool Affects the "flutter" command-line tool. See also t: labels. label Mar 28, 2023
@jmagman jmagman marked this pull request as ready for review March 28, 2023 20:28
@jmagman jmagman requested a review from cyanglaz March 28, 2023 20:28
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LGTM.
What does App.framework do? (As opposed to flutter.framework)

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jmagman commented Mar 28, 2023

LGTM. What does App.framework do? (As opposed to flutter.framework)

Flutter.framework is the precompiled engine we ship in the SDK. App.framework is the app's compiled dart code. In debug JIT mode the App.framework/App (35KB) is a dummy binary that satisfies the structure of a framework and only contains:

flutter/packages/flutter_tools/lib/src/build_system/targets/ios.dart

Line 662 in 5b20589

static const int Moo = 88;

the actual compiled binary is at App.framework/flutter_assets/kernel_blob.bin (39MB) plus the isolate_snapshot_data (5MB).

In release AOT the code is actually compiled to App.framework/App (8.4MB) and there is no kernel_blob.bin or isolate_snapshot_data.

@jmagman jmagman added the autosubmit Merge PR when tree becomes green via auto submit App label Mar 28, 2023
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