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denoland-deno/cli/js/web/streams/strategies.ts
Kitson Kelly fc4819e1e0
refactor: Event and EventTarget implementations (#4707)
Refactors Event and EventTarget so that they better encapsulate their
non-public data as well as are more forward compatible with things like
DOM Nodes.

Moves `dom_types.ts` -> `dom_types.d.ts` which was always the intention,
it was a legacy of when we used to build the types from the code and the
limitations of the compiler.  There was a lot of cruft in `dom_types`
which shouldn't have been there, and mis-alignment to the DOM standards.
This generally has been eliminated, though we still have some minor
differences from the DOM (like the removal of some deprecated
methods/properties).

Adds `DOMException`.  Strictly it shouldn't inherit from `Error`, but
most browsers provide a stack trace when one is thrown, so the behaviour
in Deno actually better matches the browser.

`Event` still doesn't log to console like it does in the browser.  I
 wanted to get this raised and that could be an enhancement later on (it
 currently doesn't either).
2020-04-11 11:42:02 -04:00

32 lines
846 B
TypeScript

// Forked from https://github.com/stardazed/sd-streams/tree/8928cf04b035fd02fb1340b7eb541c76be37e546
// Copyright (c) 2018-Present by Arthur Langereis - @zenmumbler MIT
/* eslint-disable @typescript-eslint/no-explicit-any */
// TODO reenable this lint here
import { QueuingStrategy } from "../dom_types.d.ts";
export class ByteLengthQueuingStrategy
implements QueuingStrategy<ArrayBufferView> {
highWaterMark: number;
constructor(options: { highWaterMark: number }) {
this.highWaterMark = options.highWaterMark;
}
size(chunk: ArrayBufferView): number {
return chunk.byteLength;
}
}
export class CountQueuingStrategy implements QueuingStrategy<any> {
highWaterMark: number;
constructor(options: { highWaterMark: number }) {
this.highWaterMark = options.highWaterMark;
}
size(): number {
return 1;
}
}