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refactor: Use declarations style for functions.

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This commit is contained in:
Ruben Verborgh
2021-01-06 11:24:43 +01:00
parent e70e060225
commit f9a20799eb
23 changed files with 208 additions and 162 deletions
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15
src/util/StreamUtil.ts
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@@ -13,7 +13,9 @@ const logger = getLoggerFor('StreamUtil');
*
* @returns The joined string.
*/
export const readableToString = async(stream: Readable): Promise<string> => (await arrayifyStream(stream)).join('');
export async function readableToString(stream: Readable): Promise<string> {
return (await arrayifyStream(stream)).join('');
}
/**
* Pipes one stream into another and emits errors of the first stream with the second.
@@ -25,8 +27,8 @@ export const readableToString = async(stream: Readable): Promise<string> => (awa
*
* @returns The destination stream.
*/
export const pipeSafely = <T extends Writable>(readable: NodeJS.ReadableStream, destination: T,
mapError?: (error: Error) => Error): Guarded<T> => {
export function pipeSafely<T extends Writable>(readable: NodeJS.ReadableStream, destination: T,
mapError?: (error: Error) => Error): Guarded<T> {
// Not using `stream.pipeline` since the result there only emits an error event if the last stream has the error
readable.pipe(destination);
readable.on('error', (error): void => {
@@ -39,12 +41,13 @@ export const pipeSafely = <T extends Writable>(readable: NodeJS.ReadableStream,
destination.destroy(mapError ? mapError(error) : error);
});
return guardStream(destination);
};
}
/**
* Converts an iterable to a stream and applies an error guard so that it is {@link Guarded}.
* @param iterable - Data to stream.
* @param options - Options to pass to the Readable constructor. See {@link Readable.from}.
*/
export const guardedStreamFrom = (iterable: Iterable<any>, options?: ReadableOptions): Guarded<Readable> =>
guardStream(Readable.from(iterable, options));
export function guardedStreamFrom(iterable: Iterable<any>, options?: ReadableOptions): Guarded<Readable> {
return guardStream(Readable.from(iterable, options));
}