Move Add-on SDK source to toolkit/jetpack

1 files changed, 0 insertions, 75 deletions

diff --git a/addon-sdk/source/lib/sdk/lang/weak-set.js b/addon-sdk/source/lib/sdk/lang/weak-set.js
deleted file mode 100644
index 8972602a5..000000000
--- a/addon-sdk/source/lib/sdk/lang/weak-set.js
+++ /dev/null
@@ -1,75 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-module.metadata = {
-  "stability": "experimental"
-};
-
-"use strict";
-
-const { Cu } = require("chrome");
-
-function makeGetterFor(Type) {
-  let cache = new WeakMap();
-
-  return {
-    getFor(target) {
-      if (!cache.has(target))
-        cache.set(target, new Type());
-
-      return cache.get(target);
-    },
-    clearFor(target) {
-      return cache.delete(target)
-    }
-  }
-}
-
-var {getFor: getLookupFor, clearFor: clearLookupFor} = makeGetterFor(WeakMap);
-var {getFor: getRefsFor, clearFor: clearRefsFor} = makeGetterFor(Set);
-
-function add(target, value) {
-  if (has(target, value))
-    return;
-
-  getLookupFor(target).set(value, true);
-  getRefsFor(target).add(Cu.getWeakReference(value));
-}
-exports.add = add;
-
-function remove(target, value) {
-  getLookupFor(target).delete(value);
-}
-exports.remove = remove;
-
-function has(target, value) {
-  return getLookupFor(target).has(value);
-}
-exports.has = has;
-
-function clear(target) {
-  clearLookupFor(target);
-  clearRefsFor(target);
-}
-exports.clear = clear;
-
-function iterator(target) {
-  let refs = getRefsFor(target);
-
-  for (let ref of refs) {
-    let value = ref.get();
-
-    // If `value` is already gc'ed, it would be `null`.
-    // The `has` function is using a WeakMap as lookup table, so passing `null`
-    // would raise an exception because WeakMap accepts as value only non-null
-    // object.
-    // Plus, if `value` is already gc'ed, we do not have to take it in account
-    // during the iteration, and remove it from the references.
-    if (value !== null && has(target, value))
-      yield value;
-    else
-      refs.delete(ref);
-  }
-}
-exports.iterator = iterator;