Function iteratorMixin

deps/undici/undici.js:5685–5742

(name, object, kInternalIterator, keyIndex = 0, valueIndex = 1)

    }
    __name(createIterator, "createIterator");
    function iteratorMixin(name, object, kInternalIterator, keyIndex = 0, valueIndex = 1) {
      const makeIterator = createIterator(name, kInternalIterator, keyIndex, valueIndex);
      const properties = {
        keys: {
          writable: true,
          enumerable: true,
          configurable: true,
          value: /* @__PURE__ */ __name(function keys() {
            webidl.brandCheck(this, object);
            return makeIterator(this, "key");
          }, "keys")
        },
        values: {
          writable: true,
          enumerable: true,
          configurable: true,
          value: /* @__PURE__ */ __name(function values() {
            webidl.brandCheck(this, object);
            return makeIterator(this, "value");
          }, "values")
        },
        entries: {
          writable: true,
          enumerable: true,
          configurable: true,
          value: /* @__PURE__ */ __name(function entries() {
            webidl.brandCheck(this, object);
            return makeIterator(this, "key+value");
          }, "entries")
        },
        forEach: {
          writable: true,
          enumerable: true,
          configurable: true,
          value: /* @__PURE__ */ __name(function forEach(callbackfn, thisArg = globalThis) {
            webidl.brandCheck(this, object);
            webidl.argumentLengthCheck(arguments, 1, `${name}.forEach`);
            if (typeof callbackfn !== "function") {
              throw new TypeError(
                `Failed to execute 'forEach' on '${name}': parameter 1 is not of type 'Function'.`
              );
            }
            for (const { 0: key, 1: value } of makeIterator(this, "key+value")) {
              callbackfn.call(thisArg, value, key, this);
            }
          }, "forEach")
        }
      };
      return Object.defineProperties(object.prototype, {
        ...properties,
        [Symbol.iterator]: {
          writable: true,
          enumerable: false,
          configurable: true,
          value: properties.entries.value
        }
      });
    }