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stream: add support for deflate-raw format to webstreams compression #50097

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Nov 9, 2023
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stream: add support for deflate-raw format to webstreams compression #50097

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12 changes: 10 additions & 2 deletions doc/api/webstreams.md
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Original file line number Diff line number Diff line change
Expand Up @@ -1420,9 +1420,13 @@ changes:

<!-- YAML
added: v17.0.0
changes:
- version: REPLACEME
pr-url: https://github.com/nodejs/node/pull/50097
description: format now accepts `deflate-raw` value.
-->

* `format` {string} One of either `'deflate'` or `'gzip'`.
* `format` {string} One of `'deflate'`, `'deflate-raw'`, or `'gzip'`.
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#### `compressionStream.readable`

Expand Down Expand Up @@ -1454,9 +1458,13 @@ changes:

<!-- YAML
added: v17.0.0
changes:
- version: REPLACEME
pr-url: https://github.com/nodejs/node/pull/50097
description: format now accepts `deflate-raw` value.
-->

* `format` {string} One of either `'deflate'` or `'gzip'`.
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* `format` {string} One of `'deflate'`, `'deflate-raw'`, or `'gzip'`.

#### `decompressionStream.readable`

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10 changes: 8 additions & 2 deletions lib/internal/webstreams/compression.js
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Expand Up @@ -35,13 +35,16 @@ class CompressionStream {
#transform;

/**
* @param {'deflate'|'gzip'} format
* @param {'deflate'|'deflate-raw'|'gzip'} format
*/
constructor(format) {
switch (format) {
case 'deflate':
this.#handle = lazyZlib().createDeflate();
break;
case 'deflate-raw':
this.#handle = lazyZlib().createDeflateRaw();
break;
case 'gzip':
this.#handle = lazyZlib().createGzip();
break;
Expand Down Expand Up @@ -80,13 +83,16 @@ class DecompressionStream {
#transform;

/**
* @param {'deflate'|'gzip'} format
* @param {'deflate'|'deflate-raw'|'gzip'} format
*/
constructor(format) {
switch (format) {
case 'deflate':
this.#handle = lazyZlib().createInflate();
break;
case 'deflate-raw':
this.#handle = lazyZlib().createInflateRaw();
break;
case 'gzip':
this.#handle = lazyZlib().createGunzip();
break;
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2 changes: 1 addition & 1 deletion test/parallel/test-whatwg-webstreams-compression.js
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Expand Up @@ -38,7 +38,7 @@ async function test(format) {
]);
}

Promise.all(['gzip', 'deflate'].map((i) => test(i))).then(common.mustCall());
Promise.all(['gzip', 'deflate', 'deflate-raw'].map((i) => test(i))).then(common.mustCall());

[1, 'hello', false, {}].forEach((i) => {
assert.throws(() => new CompressionStream(i), {
Expand Down