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Fix: proper TextDecoderStream implementation

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This commit is contained in:
SukkaW 2024-06-02 19:54:27 +08:00
parent 9b5738f565
commit 2564860a17
1 changed files with 9 additions and 5 deletions
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14
Build/lib/text-decoder-stream.ts
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@ -16,18 +16,23 @@
// Modified by Sukka (https://skk.moe) to increase compatibility and performance with Bun.
export class PolyfillTextDecoderStream extends TransformStream<Uint8Array, string> {
readonly encoding: string;
readonly fatal: boolean;
readonly ignoreBOM: boolean;
constructor(
encoding: Bun.Encoding = 'utf-8',
{ fatal = false, ignoreBOM = false }: ConstructorParameters<typeof TextDecoder>[1] = {}
public readonly encoding: Bun.Encoding = 'utf-8',
{
fatal = false,
ignoreBOM = false
}: ConstructorParameters<typeof TextDecoder>[1] = {}
) {
const decoder = new TextDecoder(encoding, { fatal, ignoreBOM });
const nonLastChunkDecoderOpt: TextDecodeOptions = { stream: true };
super({
transform(chunk: Uint8Array, controller: TransformStreamDefaultController<string>) {
const decoded = decoder.decode(chunk);
const decoded = decoder.decode(chunk, nonLastChunkDecoderOpt);
controller.enqueue(decoded);
},
flush(controller: TransformStreamDefaultController<string>) {
@ -43,7 +48,6 @@ export class PolyfillTextDecoderStream extends TransformStream<Uint8Array, strin
}
});
this.encoding = encoding;
this.fatal = fatal;
this.ignoreBOM = ignoreBOM;
}