@tamagui/react-native-web-lite/dist/esm/vendor/react-native/VirtualizedList/ChildListCollection.js

React Native for Web

import { invariant } from "@tamagui/react-native-web-internals";
class ChildListCollection {
  _cellKeyToChildren = /* @__PURE__ */ new Map();
  _childrenToCellKey = /* @__PURE__ */ new Map();
  add(list, cellKey) {
    invariant(
      !this._childrenToCellKey.has(list),
      "Trying to add already present child list"
    );
    const cellLists = this._cellKeyToChildren.get(cellKey) ?? /* @__PURE__ */ new Set();
    cellLists.add(list), this._cellKeyToChildren.set(cellKey, cellLists), this._childrenToCellKey.set(list, cellKey);
  }
  remove(list) {
    const cellKey = this._childrenToCellKey.get(list);
    invariant(cellKey != null, "Trying to remove non-present child list"), this._childrenToCellKey.delete(list);
    const cellLists = this._cellKeyToChildren.get(cellKey);
    invariant(cellLists, "_cellKeyToChildren should contain cellKey"), cellLists.delete(list), cellLists.size === 0 && this._cellKeyToChildren.delete(cellKey);
  }
  forEach(fn) {
    for (const listSet of this._cellKeyToChildren.values())
      for (const list of listSet)
        fn(list);
  }
  forEachInCell(cellKey, fn) {
    const listSet = this._cellKeyToChildren.get(cellKey) ?? [];
    for (const list of listSet)
      fn(list);
  }
  anyInCell(cellKey, fn) {
    const listSet = this._cellKeyToChildren.get(cellKey) ?? [];
    for (const list of listSet)
      if (fn(list))
        return !0;
    return !1;
  }
  size() {
    return this._childrenToCellKey.size;
  }
}
export {
  ChildListCollection as default
};
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