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add WeakMap existence check to symbol polyfilling

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Sebastian McKenzie
2014-11-23 18:37:43 +11:00
parent 4502aee988
commit 0339d21c33
1 changed files with 5 additions and 3 deletions
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8
lib/6to5/polyfill.js
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@@ -30,6 +30,8 @@ ensureProto(Map, Symbol.referenceGet, Map.prototype.get);
ensureProto(Map, Symbol.referenceSet, Map.prototype.set);
ensureProto(Map, Symbol.referenceDelete, Map.prototype.delete);
ensureProto(WeakMap, Symbol.referenceGet, WeakMap.prototype.get);
ensureProto(WeakMap, Symbol.referenceSet, WeakMap.prototype.set);
ensureProto(WeakMap, Symbol.referenceDelete, WeakMap.prototype.delete);
if (global.WeakMap) {
ensureProto(WeakMap, Symbol.referenceGet, WeakMap.prototype.get);
ensureProto(WeakMap, Symbol.referenceSet, WeakMap.prototype.set);
ensureProto(WeakMap, Symbol.referenceDelete, WeakMap.prototype.delete);
}