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