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Merge pull request #15539 from Snuffleupagus/DecryptStream-set

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Replace loop with `TypedArray.prototype.set` in the `DecryptStream.readBlock` method
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Jonas Jenwald 2022-10-07 11:14:28 +02:00 committed by GitHub
commit 3cb119cb32
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1 changed files with 5 additions and 7 deletions
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src/core/decrypt_stream.js
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@ -46,13 +46,11 @@ class DecryptStream extends DecodeStream {
const decrypt = this.decrypt; const decrypt = this.decrypt;
chunk = decrypt(chunk, !hasMoreData); chunk = decrypt(chunk, !hasMoreData);
let bufferLength = this.bufferLength; const bufferLength = this.bufferLength,
const n = chunk.length, newLength = bufferLength + chunk.length,
buffer = this.ensureBuffer(bufferLength + n); buffer = this.ensureBuffer(newLength);
for (let i = 0; i < n; i++) { buffer.set(chunk, bufferLength);
buffer[bufferLength++] = chunk[i]; this.bufferLength = newLength;
}
this.bufferLength = bufferLength;
} }
} }