shelving/sequence/AbstractSequence.js

Toolkit for using data in JavaScript.

/** Sequence of values designed to be extended that implements the full async generator protocol. */
export class AbstractSequence {
    [Symbol.toStringTag] = "Sequence";
    async return(returnValue) {
        // Default behaviour for a generator is to return `done: true` and the input value.
        return { done: true, value: await returnValue };
    }
    throw(reason) {
        // Default behaviour for a generator is to throw the error back out of the iterator and not continue.
        throw reason;
    }
    // Implement `AsyncIterable`
    [Symbol.asyncIterator]() {
        return this;
    }
}