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Embedded Synchronization: enable Mutex for Wasm #85835

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Merged
MaxDesiatov merged 5 commits into from
Dec 6, 2025
+33 −1
Merged

Embedded Synchronization: enable Mutex for Wasm #85835

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bfa8857
Embedded Synchronization: enable `Mutex` for Wasm
MaxDesiatov Dec 4, 2025
9147fce
Synchronization/CMakeLists.txt: build `Cell.swift` for Embedded Wasm
MaxDesiatov Dec 4, 2025
6134ac9
Add `embedded/wasm/mutex.swift` for testing `Mutex` stdlib type
MaxDesiatov Dec 4, 2025
bf7d5fd
Correct import in `test/embedded/wasm/mutex.swift`
MaxDesiatov Dec 5, 2025
d33191e
Use `print` instead of `puts` in `embedded/wasm/mutex.swift`
MaxDesiatov Dec 5, 2025
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13 changes: 12 additions & 1 deletion stdlib/public/Synchronization/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -192,13 +192,24 @@ if(SWIFT_SHOULD_BUILD_EMBEDDED_STDLIB)
if(SWIFT_EMBEDDED_STDLIB_SDKS_FOR_TARGET_TRIPLES)
set(SWIFT_SDK_embedded_ARCH_${arch}_PATH "${EMBEDDED_STDLIB_SDK_FOR_${triple}}")
endif()

set(SWIFT_SYNCHRONIZATION_EMBEDDED_SOURCES)

if("${arch}" MATCHES "wasm32")
list(APPEND SWIFT_SYNCHRONIZATION_EMBEDDED_SOURCES ${SWIFT_SYNCHRONIZATION_SOURCES})
list(APPEND SWIFT_SYNCHRONIZATION_EMBEDDED_SOURCES ${SWIFT_SYNCHRONIZATION_WASM_SOURCES})
else()
list(APPEND SWIFT_SYNCHRONIZATION_EMBEDDED_SOURCES ${SWIFT_SYNCHRONIZATION_ATOMIC_SOURCES})
endif()

add_swift_target_library_single(
embedded-synchronization-${mod}
swiftSynchronization
ONLY_SWIFTMODULE
IS_FRAGILE

${SWIFT_SYNCHRONIZATION_ATOMIC_SOURCES}
${SWIFT_SYNCHRONIZATION_EMBEDDED_SOURCES}

GYB_SOURCES
${SWIFT_SYNCHRONIZATION_GYB_SOURCES}

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21 changes: 21 additions & 0 deletions test/embedded/wasm/mutex.swift
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Original file line number Diff line number Diff line change
@@ -0,0 +1,21 @@
// RUN: %target-run-simple-swift(-enable-experimental-feature Embedded -parse-as-library -wmo) | %FileCheck %s

// REQUIRES: executable_test
// REQUIRES: OS=wasip1
// REQUIRES: swift_feature_Embedded

import Synchronization
@main struct Main {
static func main() {
let m = Mutex(42)

m.withLock {
print("Hello \($0)") // CHECK: Hello 42
$0 = 37
}

m.withLock {
print("Hello \($0)") // CHECK: Hello 37
}
}
}