@ledgerhq/live-common/lib/rxjs/operators/throwIf.js

Common ground for the Ledger Live apps

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.throwIf = throwIf;
const operators_1 = require("rxjs/operators");
// from https://github.com/NiklasPor/rxjs-boost (MIT)
/**
 * Throws the error built by `errorFn` if `conditionFn` evaluates to be truthy.
 *
 * @param conditionFn Determines if an error should be thrown.
 * @param errorFn Evaluates to the error which can be thrown.
 *
 * @example
 * ```
 * const input = cold('   ft', { f: false, t: true });
 * const expected = cold('f#', { f: false }, 'error');
 *
 * const result = input.pipe(
 *   // will throw 'error' for values === true
 *   throwIf(
 *     (val) => val
 *     () => error
 *   )
 * );
 * ```
 */
function throwIf(conditionFn, errorFn) {
    return (input) => input.pipe((0, operators_1.map)((value, index) => {
        if (conditionFn(value, index)) {
            throw errorFn(value, index);
        }
        return value;
    }));
}
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