option-t/esm/plain_result/operators/equal.js

A toolkit of Nullable/Option/Result type implementation in ECMAScript. Their APIs are inspired by Rust's `Option<T>` and `Result<T, E>`.

import { isNotSameOkField, isSameErrField, isSameValField, } from '../internal/intrinsics_compare.js';
/**
 *  Return `true`:
 *      1. if `lhs === rhs`.
 *      2. if _lhs_ and _rhs_ is same kind, and they contain same value.
 *
 *  Otherwise, return `false`.
 *
 *  This function is designed for `Result<T, E>`.
 *  This function may return `true` if input values has same properties with `Result<T, E>`
 *  and their properties are same between _lhs_ and _rhs_.
 */
export function equalForResult(lhs, rhs) {
    if (lhs === rhs) {
        return true;
    }
    if (isNotSameOkField(lhs, rhs)) {
        return false;
    }
    const isEqual = isSameValField(lhs, rhs) && isSameErrField(lhs, rhs);
    return isEqual;
}