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33 lines
1.2 KiB
Plaintext
33 lines
1.2 KiB
Plaintext
type Key = string | number | symbol;
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/**
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* SetArray acts like a `Set` (allowing only one occurrence of a string `key`), but provides the
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* index of the `key` in the backing array.
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*
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* This is designed to allow synchronizing a second array with the contents of the backing array,
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* like how in a sourcemap `sourcesContent[i]` is the source content associated with `source[i]`,
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* and there are never duplicates.
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*/
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export declare class SetArray<T extends Key = Key> {
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private _indexes;
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array: readonly T[];
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constructor();
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}
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/**
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* Gets the index associated with `key` in the backing array, if it is already present.
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*/
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export declare function get<T extends Key>(setarr: SetArray<T>, key: T): number | undefined;
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/**
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* Puts `key` into the backing array, if it is not already present. Returns
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* the index of the `key` in the backing array.
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*/
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export declare function put<T extends Key>(setarr: SetArray<T>, key: T): number;
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/**
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* Pops the last added item out of the SetArray.
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*/
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export declare function pop<T extends Key>(setarr: SetArray<T>): void;
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/**
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* Removes the key, if it exists in the set.
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*/
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export declare function remove<T extends Key>(setarr: SetArray<T>, key: T): void;
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export {};
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//# sourceMappingURL=set-array.d.ts.map |