import { ContainerIterator } from "../../ContainerBase";
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import TreeContainer from "./index";
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declare abstract class TreeIterator<K, V> extends ContainerIterator<K | [K, V]> {
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abstract readonly container: TreeContainer<K, V>;
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/**
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* @description Get the sequential index of the iterator in the tree container.<br/>
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* <strong>Note:</strong>
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* This function only takes effect when the specified tree container `enableIndex = true`.
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* @returns The index subscript of the node in the tree.
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* @example
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* const st = new OrderedSet([1, 2, 3], true);
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* console.log(st.begin().next().index); // 1
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*/
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get index(): number;
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pre(): this;
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next(): this;
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}
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export default TreeIterator;
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