[Concurrency] Fix a typo and use var not let.

al45tair · al45tair · commit 167449f3db45 · 2025-03-18T10:39:41.000Z
Fix a typo that caused us to not include the correct code for platforms
that use "singlethreaded" concurrency.

Also use `var` not `let` for the computed property in `PlatformExecutorFactory`.

rdar://141348916
diff --git a/stdlib/public/Concurrency/CMakeLists.txt b/stdlib/public/Concurrency/CMakeLists.txt
@@ -177,7 +177,7 @@ if("${SWIFT_CONCURRENCY_GLOBAL_EXECUTOR}" STREQUAL "dispatch")
     ExecutorImpl.swift
   )
 elseif("${SWIFT_CONCURRENCY_GLOBAL_EXECUTOR}" STREQUAL "singlethreaded")
-  set(SWIFT_RUNTIME_CONCURRENCYU_NONEMBEDDED_SWIFT_SOURCES
+  set(SWIFT_RUNTIME_CONCURRENCY_NONEMBEDDED_SWIFT_SOURCES
     ExecutorImpl.swift
     PlatformExecutorCooperative.swift
     )
diff --git a/stdlib/public/Concurrency/PlatformExecutorCooperative.swift b/stdlib/public/Concurrency/PlatformExecutorCooperative.swift
@@ -16,6 +16,6 @@ import Swift
 @available(SwiftStdlib 6.2, *)
 public struct PlatformExecutorFactory: ExecutorFactory {
   static let executor = CooperativeExecutor()
-  public static let mainExecutor: any MainExecutor { executor }
-  public static let defaultExecutor: any TaskExecutor { executor }
+  public static var mainExecutor: any MainExecutor { executor }
+  public static var defaultExecutor: any TaskExecutor { executor }
 }

Original file line number	Diff line number	Diff line change
`@@ -177,7 +177,7 @@ if("${SWIFT_CONCURRENCY_GLOBAL_EXECUTOR}" STREQUAL "dispatch")`
`177`	`177`	`ExecutorImpl.swift`
`178`	`178`	`)`
`179`	`179`	`elseif("${SWIFT_CONCURRENCY_GLOBAL_EXECUTOR}" STREQUAL "singlethreaded")`
`180`		`- set(SWIFT_RUNTIME_CONCURRENCYU_NONEMBEDDED_SWIFT_SOURCES`
	`180`	`+ set(SWIFT_RUNTIME_CONCURRENCY_NONEMBEDDED_SWIFT_SOURCES`
`181`	`181`	`ExecutorImpl.swift`
`182`	`182`	`PlatformExecutorCooperative.swift`
`183`	`183`	`)`
Original file line number	Diff line number	Diff line change
`@@ -16,6 +16,6 @@ import Swift`
`16`	`16`	`@available(SwiftStdlib 6.2, *)`
`17`	`17`	`public struct PlatformExecutorFactory: ExecutorFactory {`
`18`	`18`	`static let executor = CooperativeExecutor()`
`19`		`- public static let mainExecutor: any MainExecutor { executor }`
`20`		`- public static let defaultExecutor: any TaskExecutor { executor }`
	`19`	`+ public static var mainExecutor: any MainExecutor { executor }`
	`20`	`+ public static var defaultExecutor: any TaskExecutor { executor }`
`21`	`21`	`}`