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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | 1x 1x 20x | import { RequiredType, guardFunctions } from "@jonloucks/contracts-ts/api/Types";
/**
* Responsibility: An atomic boolean interface for thread-safe boolean operations.
*/
export interface AtomicBoolean {
/**
* Get the current boolean value.
*/
get(): boolean;
/**
* Set the current boolean value.
* @param newValue the new value
*/
set(newValue: boolean): void;
/**
* Atomically set the value to the given updated value if the current value === the expected value.
*
* @param expectedValue the expected current value
* @param newValue the requested new value
* @return true if successful. False return indicates that the actual value was not equal to the expected value.
*/
compareAndSet(expectedValue: boolean, newValue: boolean): boolean;
/**
* Atomically sets to the given value and returns the previous value.
*
* @param newValue the new value
* @return the previous value
*/
getAndSet(newValue: boolean): boolean;
/**
* Helpful method for converting to primitive types.
* @param hint
*/
[Symbol.toPrimitive](hint: string): string | boolean | number;
}
/**
* Type guard for AtomicBoolean interface.
*
* @param instance the instance to check
* @returns true if the instance implements AtomicBoolean
*/
export function guard(instance: unknown): instance is RequiredType<AtomicBoolean> {
return guardFunctions(instance, "compareAndSet", "get", "set", "getAndSet");
}
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