77 lines
2.1 KiB
TypeScript
77 lines
2.1 KiB
TypeScript
// Copyright 2021 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import { getEnvironment, Environment } from '../environment';
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import * as log from '../logging/log';
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/**
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* In production and beta, logs a warning and continues. For development it
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* starts the debugger.
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*/
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export function softAssert(condition: unknown, message: string): void {
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if (!condition) {
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if (getEnvironment() === Environment.Development) {
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debugger; // eslint-disable-line no-debugger
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}
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const err = new Error(message);
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log.warn('softAssert failure:', err && err.stack ? err.stack : err);
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}
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}
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/**
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* In production, logs an error and continues. In all other environments, throws an error.
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*/
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export function assertDev(
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condition: unknown,
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message: string
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): asserts condition {
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if (!condition) {
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const err = new Error(message);
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if (getEnvironment() !== Environment.Production) {
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if (getEnvironment() === Environment.Development) {
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debugger; // eslint-disable-line no-debugger
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}
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throw err;
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}
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log.error('assert failure:', err && err.stack ? err.stack : err);
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}
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}
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/**
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* Throws an error if the condition is falsy, regardless of environment.
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*/
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/**
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* Asserts an expression is true.
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*
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* @param value - An expression to assert is true.
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* @param message - An optional message for the assertion error thrown.
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*/
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export function strictAssert(value: boolean, message: string): asserts value;
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/**
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* Asserts a nullable value is non-null.
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*
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* @param value - A nullable value to assert is non-null.
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* @param message - An optional message for the assertion error thrown.
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*/
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export function strictAssert<T>(
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value: T | null | undefined,
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message: string
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): asserts value is T;
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export function strictAssert(condition: unknown, message: string): void {
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if (condition === false || condition == null) {
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throw new Error(message);
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}
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}
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/**
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* Asserts that the type of value is not a promise.
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* (Useful for database modules)
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*/
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export function assertSync<T, X>(value: T extends Promise<X> ? never : T): T {
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return value;
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}
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