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denoland-deno/cli/js/errors.ts
2020-01-20 10:50:16 -05:00

56 lines
1.3 KiB
TypeScript

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
/** A Deno specific error. The `kind` property is set to a specific error code
* which can be used to in application logic.
*
* try {
* somethingThatMightThrow();
* } catch (e) {
* if (
* e instanceof Deno.DenoError &&
* e.kind === Deno.ErrorKind.NotFound
* ) {
* console.error("NotFound error!");
* }
* }
*
*/
export class DenoError<T extends ErrorKind> extends Error {
constructor(readonly kind: T, msg: string) {
super(msg);
this.name = ErrorKind[kind];
}
}
// Warning! The values in this enum are duplicated in cli/msg.rs
// Update carefully!
export enum ErrorKind {
NotFound = 1,
PermissionDenied = 2,
ConnectionRefused = 3,
ConnectionReset = 4,
ConnectionAborted = 5,
NotConnected = 6,
AddrInUse = 7,
AddrNotAvailable = 8,
BrokenPipe = 9,
AlreadyExists = 10,
WouldBlock = 11,
InvalidInput = 12,
InvalidData = 13,
TimedOut = 14,
Interrupted = 15,
WriteZero = 16,
Other = 17,
UnexpectedEof = 18,
BadResource = 19,
UrlParse = 20,
Http = 21,
TooLarge = 22,
InvalidSeekMode = 23,
UnixError = 24,
InvalidPath = 25,
ImportPrefixMissing = 26,
Diagnostic = 27,
JSError = 28
}