19 lines
456 B
TypeScript
19 lines
456 B
TypeScript
export class Locker<T extends string> {
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private locks = new Map<T, true>();
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lock = (lockType: T) => {
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this.locks.set(lockType, true);
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};
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/** @returns whether no locks remaining */
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unlock = (lockType: T) => {
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this.locks.delete(lockType);
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return !this.isLocked();
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};
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/** @returns whether some (or specific) locks are present */
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isLocked(lockType?: T) {
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return lockType ? this.locks.has(lockType) : !!this.locks.size;
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}
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}
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