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[Syntax] Use no-op PlatformMutex implemtation for wasm32-unknown-wasi #2944

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Merged
merged 1 commit into from
Jan 21, 2025
Merged

[Syntax] Use no-op PlatformMutex implemtation for wasm32-unknown-wasi #2944

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24 changes: 23 additions & 1 deletion Sources/_SwiftSyntaxCShims/PlatformMutex.c
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,13 @@
#include "PlatformMutex.h"
#include <stdlib.h>

#if defined(__wasi__) && !defined(_REENTRANT)
#define SWIFTSYNTAX_HAS_THREAD 0
#else
#define SWIFTSYNTAX_HAS_THREAD 1
#endif

#if SWIFTSYNTAX_HAS_THREAD
#if defined(__APPLE__)
#include <os/lock.h>

Expand Down Expand Up @@ -81,5 +88,20 @@ void swiftsyntax_platform_mutex_destroy(PlatformMutex m) {
}

#else
#error "platfrom mutex implementation is not available"
#error "platform mutex implementation is not available"
// Add platform specific implementation above, or set SWIFTSYNTAX_HAS_THREAD to 0.
#endif

#else // SWIFTSYNTAX_HAS_THREAD

PlatformMutex swiftsyntax_platform_mutex_create() {
PlatformMutex m;
m.opaque = 0;
return m;
}

void swiftsyntax_platform_mutex_lock(PlatformMutex m) {}
void swiftsyntax_platform_mutex_unlock(PlatformMutex m) {}
void swiftsyntax_platform_mutex_destroy(PlatformMutex m) {}

#endif // SWIFTSYNTAX_HAS_THREAD