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[SR-5339] do/catch error #47913

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swift-ci opened this issue Jun 30, 2017 · 2 comments
Closed

[SR-5339] do/catch error #47913

swift-ci opened this issue Jun 30, 2017 · 2 comments
Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself

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@swift-ci
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Previous ID SR-5339
Radar None
Original Reporter marchyman (JIRA User)
Type Bug
Status Resolved
Resolution Invalid

Attachment: Download

Environment

Swift 3, Xcode 8.3.3m, macOS 10.12.5

Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, Miscompile
Assignee None
Priority Medium

md5: 975e6d745e8a771de73810c2e1e6cb5e

Issue Description:

Inner do/catch block is not being called.

do {
try ... assume failure
} catch {
do {
try ... assume failure
} catch error as NSError {
... this branch is never invoked
}
}

Test project (attached) should print an error and exit. Instead it aborts with a fatalError because the inner catch is not invoked.
@belkadan
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belkadan commented Jul 1, 2017

It looks like the bug here is actually in NSFileManager—Objective-C code is doing the same thing. Can you file a bug report against Foundation at https://bugreport.apple.com ? (I could do it, but then you wouldn't get notified when it was fixed.)

static inline void objcCopyFile(NSURL * _Nonnull from, NSURL * _Nonnull to) {
  NSLog(@"%@ %@", from, to);
  NSError *error;
  BOOL result = [[NSFileManager defaultManager] copyItemAtURL:from toURL:to error:&error];
  NSLog(@"%@ %@", @(result), error);
}

@swift-ci
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swift-ci commented Jul 1, 2017

Comment by Marco S Hyman (JIRA)

Will do.

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
This issue was closed.
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself
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@belkadan @swift-ci