@opennetwork/rdf-dataset/esnext/insert-like.js

export function getSetLikeFromInsertLike(insert, isLike, toFn, fromFn, equals) {
    function getIndex(match) {
        if (insert.indexOf) {
            return insert.indexOf(match);
        }
        let index = -1;
        for (const value of insert) {
            index += 1;
            if (equals(value, match)) {
                return index;
            }
        }
        return -1;
    }
    return {
        get size() {
            return insert.length;
        },
        has(value) {
            return getIndex(fromFn(value)) > -1;
        },
        add(value) {
            insert.push([fromFn(value)]);
        },
        delete(value) {
            const index = getIndex(fromFn(value));
            if (index === -1) {
                return;
            }
            insert.delete(index, 1);
        },
        *[Symbol.iterator]() {
            for (const value of insert) {
                if (isLike(value)) {
                    yield toFn(value);
                }
            }
        }
    };
}
//# sourceMappingURL=insert-like.js.map