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Add util.weakReference that won't crash if you pass null.

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This commit is contained in:
Kris Maglione
2011-10-01 23:02:00 -04:00
parent c9583ac72f
commit 84a68bff9a
12 changed files with 25 additions and 15 deletions
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2
common/modules/contexts.jsm
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@@ -30,7 +30,7 @@ var Group = Class("Group", {
get contexts() this.modules.contexts,
set lastDocument(val) { this._lastDocument = val && Cu.getWeakReference(val); },
set lastDocument(val) { this._lastDocument = util.weakReference(val); },
get lastDocument() this._lastDocument && this._lastDocument.get(),
modifiable: true,