mirror of
https://github.com/swc-project/swc.git
synced 2024-12-29 16:42:28 +03:00
252 lines
7.3 KiB
TypeScript
252 lines
7.3 KiB
TypeScript
// Loaded from https://deno.land/std@0.101.0/node/_utils.ts
|
|
|
|
|
|
// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
|
|
import { deferred } from "../async/mod.ts";
|
|
import { assert, assertStringIncludes, fail } from "../testing/asserts.ts";
|
|
import { readAll } from "../io/util.ts";
|
|
|
|
export type BinaryEncodings = "binary";
|
|
|
|
export type TextEncodings =
|
|
| "ascii"
|
|
| "utf8"
|
|
| "utf-8"
|
|
| "utf16le"
|
|
| "ucs2"
|
|
| "ucs-2"
|
|
| "base64"
|
|
| "latin1"
|
|
| "hex";
|
|
|
|
export type Encodings = BinaryEncodings | TextEncodings;
|
|
|
|
export function notImplemented(msg?: string): never {
|
|
const message = msg ? `Not implemented: ${msg}` : "Not implemented";
|
|
throw new Error(message);
|
|
}
|
|
|
|
export type _TextDecoder = typeof TextDecoder.prototype;
|
|
export const _TextDecoder = TextDecoder;
|
|
|
|
export type _TextEncoder = typeof TextEncoder.prototype;
|
|
export const _TextEncoder = TextEncoder;
|
|
|
|
// API helpers
|
|
|
|
export type MaybeNull<T> = T | null;
|
|
export type MaybeDefined<T> = T | undefined;
|
|
export type MaybeEmpty<T> = T | null | undefined;
|
|
|
|
export function intoCallbackAPI<T>(
|
|
// deno-lint-ignore no-explicit-any
|
|
func: (...args: any[]) => Promise<T>,
|
|
cb: MaybeEmpty<(err: MaybeNull<Error>, value?: MaybeEmpty<T>) => void>,
|
|
// deno-lint-ignore no-explicit-any
|
|
...args: any[]
|
|
): void {
|
|
func(...args).then(
|
|
(value) => cb && cb(null, value),
|
|
(err) => cb && cb(err),
|
|
);
|
|
}
|
|
|
|
export function intoCallbackAPIWithIntercept<T1, T2>(
|
|
// deno-lint-ignore no-explicit-any
|
|
func: (...args: any[]) => Promise<T1>,
|
|
interceptor: (v: T1) => T2,
|
|
cb: MaybeEmpty<(err: MaybeNull<Error>, value?: MaybeEmpty<T2>) => void>,
|
|
// deno-lint-ignore no-explicit-any
|
|
...args: any[]
|
|
): void {
|
|
func(...args).then(
|
|
(value) => cb && cb(null, interceptor(value)),
|
|
(err) => cb && cb(err),
|
|
);
|
|
}
|
|
|
|
export function spliceOne(list: string[], index: number): void {
|
|
for (; index + 1 < list.length; index++) list[index] = list[index + 1];
|
|
list.pop();
|
|
}
|
|
|
|
// Taken from: https://github.com/nodejs/node/blob/ba684805b6c0eded76e5cd89ee00328ac7a59365/lib/internal/util.js#L125
|
|
// Return undefined if there is no match.
|
|
// Move the "slow cases" to a separate function to make sure this function gets
|
|
// inlined properly. That prioritizes the common case.
|
|
export function normalizeEncoding(
|
|
enc: string | null,
|
|
): TextEncodings | undefined {
|
|
if (enc == null || enc === "utf8" || enc === "utf-8") return "utf8";
|
|
return slowCases(enc);
|
|
}
|
|
|
|
// https://github.com/nodejs/node/blob/ba684805b6c0eded76e5cd89ee00328ac7a59365/lib/internal/util.js#L130
|
|
function slowCases(enc: string): TextEncodings | undefined {
|
|
switch (enc.length) {
|
|
case 4:
|
|
if (enc === "UTF8") return "utf8";
|
|
if (enc === "ucs2" || enc === "UCS2") return "utf16le";
|
|
enc = `${enc}`.toLowerCase();
|
|
if (enc === "utf8") return "utf8";
|
|
if (enc === "ucs2") return "utf16le";
|
|
break;
|
|
case 3:
|
|
if (enc === "hex" || enc === "HEX" || `${enc}`.toLowerCase() === "hex") {
|
|
return "hex";
|
|
}
|
|
break;
|
|
case 5:
|
|
if (enc === "ascii") return "ascii";
|
|
if (enc === "ucs-2") return "utf16le";
|
|
if (enc === "UTF-8") return "utf8";
|
|
if (enc === "ASCII") return "ascii";
|
|
if (enc === "UCS-2") return "utf16le";
|
|
enc = `${enc}`.toLowerCase();
|
|
if (enc === "utf-8") return "utf8";
|
|
if (enc === "ascii") return "ascii";
|
|
if (enc === "ucs-2") return "utf16le";
|
|
break;
|
|
case 6:
|
|
if (enc === "base64") return "base64";
|
|
if (enc === "latin1" || enc === "binary") return "latin1";
|
|
if (enc === "BASE64") return "base64";
|
|
if (enc === "LATIN1" || enc === "BINARY") return "latin1";
|
|
enc = `${enc}`.toLowerCase();
|
|
if (enc === "base64") return "base64";
|
|
if (enc === "latin1" || enc === "binary") return "latin1";
|
|
break;
|
|
case 7:
|
|
if (
|
|
enc === "utf16le" ||
|
|
enc === "UTF16LE" ||
|
|
`${enc}`.toLowerCase() === "utf16le"
|
|
) {
|
|
return "utf16le";
|
|
}
|
|
break;
|
|
case 8:
|
|
if (
|
|
enc === "utf-16le" ||
|
|
enc === "UTF-16LE" ||
|
|
`${enc}`.toLowerCase() === "utf-16le"
|
|
) {
|
|
return "utf16le";
|
|
}
|
|
break;
|
|
default:
|
|
if (enc === "") return "utf8";
|
|
}
|
|
}
|
|
|
|
export function validateIntegerRange(
|
|
value: number,
|
|
name: string,
|
|
min = -2147483648,
|
|
max = 2147483647,
|
|
): void {
|
|
// The defaults for min and max correspond to the limits of 32-bit integers.
|
|
if (!Number.isInteger(value)) {
|
|
throw new Error(`${name} must be 'an integer' but was ${value}`);
|
|
}
|
|
|
|
if (value < min || value > max) {
|
|
throw new Error(
|
|
`${name} must be >= ${min} && <= ${max}. Value was ${value}`,
|
|
);
|
|
}
|
|
}
|
|
|
|
type OptionalSpread<T> = T extends undefined ? []
|
|
: [T];
|
|
|
|
export function once<T = undefined>(
|
|
callback: (...args: OptionalSpread<T>) => void,
|
|
) {
|
|
let called = false;
|
|
return function (this: unknown, ...args: OptionalSpread<T>) {
|
|
if (called) return;
|
|
called = true;
|
|
callback.apply(this, args);
|
|
};
|
|
}
|
|
|
|
/**
|
|
* @param {number} [expectedExecutions = 1]
|
|
* @param {number} [timeout = 1000] Milliseconds to wait before the promise is forcefully exited
|
|
*/
|
|
export function mustCall<T extends unknown[]>(
|
|
fn: ((...args: T) => void) = () => {},
|
|
expectedExecutions = 1,
|
|
timeout = 1000,
|
|
): [Promise<void>, (...args: T) => void] {
|
|
if (expectedExecutions < 1) {
|
|
throw new Error("Expected executions can't be lower than 1");
|
|
}
|
|
let timesExecuted = 0;
|
|
const completed = deferred();
|
|
|
|
const abort = setTimeout(() => completed.reject(), timeout);
|
|
|
|
function callback(this: unknown, ...args: T) {
|
|
timesExecuted++;
|
|
if (timesExecuted === expectedExecutions) {
|
|
completed.resolve();
|
|
}
|
|
fn.apply(this, args);
|
|
}
|
|
|
|
const result = completed
|
|
.then(() => clearTimeout(abort))
|
|
.catch(() =>
|
|
fail(
|
|
`Async operation not completed: Expected ${expectedExecutions}, executed ${timesExecuted}`,
|
|
)
|
|
);
|
|
|
|
return [
|
|
result,
|
|
callback,
|
|
];
|
|
}
|
|
/** Asserts that an error thrown in a callback will not be wrongly caught. */
|
|
export async function assertCallbackErrorUncaught(
|
|
{ prelude, invocation, cleanup }: {
|
|
/** Any code which needs to run before the actual invocation (notably, any import statements). */
|
|
prelude?: string;
|
|
/**
|
|
* The start of the invocation of the function, e.g. `open("foo.txt", `.
|
|
* The callback will be added after it.
|
|
*/
|
|
invocation: string;
|
|
/** Called after the subprocess is finished but before running the assertions, e.g. to clean up created files. */
|
|
cleanup?: () => Promise<void> | void;
|
|
},
|
|
) {
|
|
// Since the error has to be uncaught, and that will kill the Deno process,
|
|
// the only way to test this is to spawn a subprocess.
|
|
const p = Deno.run({
|
|
cmd: [
|
|
Deno.execPath(),
|
|
"eval",
|
|
"--no-check", // Running TSC for every one of these tests would take way too long
|
|
"--unstable",
|
|
`${prelude ?? ""}
|
|
|
|
${invocation}(err) => {
|
|
// If the bug is present and the callback is called again with an error,
|
|
// don't throw another error, so if the subprocess fails we know it had the correct behaviour.
|
|
if (!err) throw new Error("success");
|
|
});`,
|
|
],
|
|
stderr: "piped",
|
|
});
|
|
const status = await p.status();
|
|
const stderr = new TextDecoder().decode(await readAll(p.stderr));
|
|
p.close();
|
|
p.stderr.close();
|
|
await cleanup?.();
|
|
assert(!status.success);
|
|
assertStringIncludes(stderr, "Error: success");
|
|
}
|