Magic-Mirror/gecko-dev
1
0
Fork 0
mirror of https://github.com/mozilla/gecko-dev.git synced 2024-10-11 20:35:50 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Bug 940217 - Fix error report about StopIteration promise (r=Yoric)

Browse Source
This commit is contained in:
Bill McCloskey 2013-11-20 13:35:25 -08:00
parent 14f35ba0ec
commit 515206e74f
1 changed files with 15 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
toolkit/components/osfile/modules/osfile_async_front.jsm
View File

@ -880,7 +880,7 @@ let DirectoryIterator = function DirectoryIterator(path, options) {
* @rejects {StopIteration} If all entries have already been visited
* or the iterator has been closed.
*/
this._itmsg = Scheduler.post(
this.__itmsg = Scheduler.post(
"new_DirectoryIterator", [Type.path.toMsg(path), options],
path
);
@ -890,6 +890,17 @@ DirectoryIterator.prototype = {
iterator: function () this,
__iterator__: function () this,
// Once close() is called, _itmsg should reject with a
// StopIteration. However, we don't want to create the promise until
// it's needed because it might never be used. In that case, we
// would get a warning on the console.
get _itmsg() {
if (!this.__itmsg) {
this.__itmsg = Promise.reject(StopIteration);
}
return this.__itmsg;
},
/**
* Determine whether the directory exists.
*
@ -1029,7 +1040,9 @@ DirectoryIterator.prototype = {
let self = this;
return this._itmsg.then(
function withIterator(iterator) {
self._itmsg = Promise.reject(StopIteration);
// Set __itmsg to null so that the _itmsg getter returns a
// rejected StopIteration promise if it's ever used.
self.__itmsg = null;
return Scheduler.post("DirectoryIterator_prototype_close", [iterator]);
}
);