And that's the point. The throw does not happen. An error is logged, but
execution continues as though there was no error.
John
Howard Lovatt <mailto:howard.lov...@gmail.com>
12 November 2017 at 07:43
I don’t have any inside knowledge on this, i.e. I am not certain I am
correct, but my understanding was that you were meant to let it throw
and catch the error rather than test before hand.
-- Howard.
Marco S Hyman <mailto:m...@snafu.org>
11 November 2017 at 11:51
Known (by Apple) bug. My report was closed as a duplicate of 30350792.
My workaround is to do this in my do block after attempting to copy a
file to saveFileUrl:
try fileManager.copyItem(at: url, to: saveFileUrl)
/// DANGER WILL ROBINSON -- the above call can fail to return an
/// error when the file is not copied. radar filed and
/// closed as a DUPLICATE OF 30350792 which is still open.
/// As a result I must verify that the copied file exists
if !fileManager.fileExists(atPath: (saveFileUrl.path)) {
unexpected(error: nil,
"Cannot copy \(url.path) to \(saveFileUrl.path)")
return false
}
which duplicates what the catch block would do.
Marc
John Brownie <mailto:john_brow...@sil.org>
11 November 2017 at 11:31
I have code as follows:
let fileManager = FileManager.default
do {
try fileManager.createDirectory(at:
destination.deletingLastPathComponent(), withIntermediateDirectories:
true, attributes: nil)
try fileManager.copyItem(at: source, to: destination)
handler(true, nil)
}
catch let theError as NSError {
if theError.code == NSFileWriteNoPermissionError {
...
}
else {
...
}
}
catch {
handler(false, NSError(...))
}
Running on macOS 10.12.6, Xcode 8.3.2, I get to the copyItem call,
which shows an error on the console:
2017-11-11 11:18:25.931446+1000 MyApp[32662:2408351] open on
/path/to/file: Permission denied
But it doesn't go to either of my catch blocks, but goes to the
following line, where the completion handler is to be run. What is
going on?
John
--
John Brownie
SIL-PNG, Ukarumpa, Eastern Highlands, Papua New Guinea
Mussau-Emira language, New Ireland Province, Papua New Guinea
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