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1ae317dd88
Previously, SILGen assumed that a foreign function could either have a
foreign async convention or a foreign error convention, but if it had
both, the error would be subsumed into the completion. That resulted in
failures to emit code for async calls of functions like
```
- (BOOL)minimalWithError:(NSError* _Nullable*)error
completionHandler:(void (^ _Nonnull)(void))completionHandler;
```
Here, SILGen gains the ability to emit such functions. To enable that,
a few changes were required when both conventions are present:
- a separate argument for each convention is used
- the ResultPlan is a ForeignErrorResultPlan nesting a
ForeignAsyncResultPlan
- the continuation is always of the form UnsafeContinuation<_, Error>
regardless of whether the completion handler takes an error
- the foreign error block fills the continuation with the error that was
passed by reference out of the ObjC method call
- the foreign error block branches to the block containing the await
instruction
rdar://80704984
36 lines
1.1 KiB
Objective-C
36 lines
1.1 KiB
Objective-C
#include "rdar80704984.h"
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#pragma clang assume_nonnull begin
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@implementation PFXObject
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- (instancetype)init {
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if (self = [super init]) {
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}
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return self;
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}
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- (BOOL)enqueueErroryRequestWithError:(NSError *_Nullable *)error
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completionHandler:
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(nullable CompletionHandler)completionHandler {
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*error = [[NSError alloc] initWithDomain:@"d" code:1 userInfo:nil];
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return NO;
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}
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- (BOOL)enqueueSyncSuccessfulErroryRequestWithError:(NSError *_Nullable *)error
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completionHandler:(nullable CompletionHandler)
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completionHandler {
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completionHandler(0, 1);
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return YES;
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}
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- (BOOL)enqueueAsyncSuccessfulErroryRequestWithError:(NSError *_Nullable *)error
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completionHandler:
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(nullable CompletionHandler)
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completionHandler;
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{
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dispatch_async(dispatch_get_main_queue(), ^{
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completionHandler(0, 2);
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});
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return YES;
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}
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@end
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#pragma clang assume_nonnull end
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