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chenyc

2025-12-09 65e034683b28d799e73c7d7e5e4769fab5b9bc9c

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"use strict";
 
var clear             = require("es5-ext/array/#/clear")
  , assign            = require("es5-ext/object/assign")
  , setPrototypeOf    = require("es5-ext/object/set-prototype-of")
  , contains          = require("es5-ext/string/#/contains")
  , d                 = require("d")
  , autoBind          = require("d/auto-bind")
  , Iterator          = require("es6-iterator")
  , toStringTagSymbol = require("es6-symbol").toStringTag
  , defineProperties  = Object.defineProperties
  , keys              = Object.keys
  , unBind            = Iterator.prototype._unBind
  , PrimitiveSetIterator;
 
PrimitiveSetIterator = module.exports = function (set, kind) {
    if (!(this instanceof PrimitiveSetIterator)) {
        return new PrimitiveSetIterator(set, kind);
    }
    Iterator.call(this, keys(set.__setData__), set);
    kind = !kind || !contains.call(kind, "key+value") ? "value" : "key+value";
    return defineProperties(this, { __kind__: d("", kind), __data__: d("w", set.__setData__) });
};
if (setPrototypeOf) setPrototypeOf(PrimitiveSetIterator, Iterator);
 
PrimitiveSetIterator.prototype = Object.create(
    Iterator.prototype,
    assign(
        {
            constructor: d(PrimitiveSetIterator),
            _resolve: d(function (i) {
                var value = this.__data__[this.__list__[i]];
                return this.__kind__ === "value" ? value : [value, value];
            }),
            _unBind: d(function () {
                this.__data__ = null;
                unBind.call(this);
            }),
            toString: d(function () { return "[object Set Iterator]"; })
        },
        autoBind({
            _onAdd: d(function (key) { this.__list__.push(key); }),
            _onDelete: d(function (key) {
                var index = this.__list__.lastIndexOf(key);
                if (index < this.__nextIndex__) return;
                this.__list__.splice(index, 1);
            }),
            _onClear: d(function () {
                clear.call(this.__list__);
                this.__nextIndex__ = 0;
            })
        })
    )
);
Object.defineProperty(PrimitiveSetIterator.prototype, toStringTagSymbol, d("c", "Set Iterator"));