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Compilation error related to @TaskLocal on the latest nightly toolchains. #73793

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fibrechannelscsi opened this issue May 21, 2024 · 1 comment
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Compilation error related to @TaskLocal on the latest nightly toolchains. #73793

fibrechannelscsi opened this issue May 21, 2024 · 1 comment
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. concurrency Feature: umbrella label for concurrency language features triage needed This issue needs more specific labels

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@fibrechannelscsi
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Description

The code below fails to compile on the latest nightly toolchains.
The error generated is: macro type 'SwiftMacros.TaskLocalMacro' not found when expanding macro 'TaskLocal '

Reproduction

Copy and paste the following code into a new project, and build in Debug mode.

struct A {@TaskLocal static var a: Self?}

Expected behavior

The compilation should succeed.

Environment

Nightly toolchains 2024-05-14a and 2024-05-15a are affected.
Toolchains in the range of 2023-07-10a to 2024-05-01a build this correctly.

Additional information

This prevents certain packages from building; one example is XCTest Dynamic Overlay: https://github.com/pointfreeco/xctest-dynamic-overlay
@fibrechannelscsi fibrechannelscsi added bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. triage needed This issue needs more specific labels labels May 21, 2024
@asl asl added the concurrency Feature: umbrella label for concurrency language features label May 30, 2024
@fibrechannelscsi
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This is fixed as of the 2024-06-04a toolchain.

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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. concurrency Feature: umbrella label for concurrency language features triage needed This issue needs more specific labels
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@asl @fibrechannelscsi