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Merge pull request #11977 from timvandermeij/refset

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Convert the `RefSet` primitive to a proper class and use a `Set` internally
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Tim van der Meij 2020-06-07 23:15:35 +02:00 committed by GitHub
commit a4fa4554d6
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1 changed files with 13 additions and 18 deletions
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31
src/core/primitives.js
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@ -221,28 +221,23 @@ var Ref = (function RefClosure() {
// The reference is identified by number and generation. // The reference is identified by number and generation.
// This structure stores only one instance of the reference. // This structure stores only one instance of the reference.
var RefSet = (function RefSetClosure() { class RefSet {
// eslint-disable-next-line no-shadow constructor() {
function RefSet() { this._set = new Set();
this.dict = Object.create(null);
} }
RefSet.prototype = { has(ref) {
has: function RefSet_has(ref) { return this._set.has(ref.toString());
return ref.toString() in this.dict; }
},
put: function RefSet_put(ref) { put(ref) {
this.dict[ref.toString()] = true; this._set.add(ref.toString());
}, }
remove: function RefSet_remove(ref) { remove(ref) {
delete this.dict[ref.toString()]; this._set.delete(ref.toString());
}, }
}; }
return RefSet;
})();
var RefSetCache = (function RefSetCacheClosure() { var RefSetCache = (function RefSetCacheClosure() {
// eslint-disable-next-line no-shadow // eslint-disable-next-line no-shadow