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stream: eos make const state const #32031

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stream: eos make const state const #32031

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9d1ee32
stream: eos make const state const
ronag Mar 1, 2020
efd93fb
fixup: test
ronag Mar 1, 2020
f050b72
fixup: nit
ronag Mar 1, 2020
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18 changes: 7 additions & 11 deletions lib/internal/streams/end-of-stream.js
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Original file line number Diff line number Diff line change
Expand Up @@ -56,9 +56,9 @@ function eos(stream, opts, callback) {

callback = once(callback);

let readable = opts.readable ||
const readable = opts.readable ||
(opts.readable !== false && isReadable(stream));
let writable = opts.writable ||
const writable = opts.writable ||
(opts.writable !== false && isWritable(stream));

const wState = stream._writableState;
Expand All @@ -71,35 +71,31 @@ function eos(stream, opts, callback) {
let writableFinished = stream.writableFinished ||
(wState && wState.finished);
const onfinish = () => {
writable = false;
writableFinished = true;
if (!readable) callback.call(stream);
if (!readable || readableEnded) callback.call(stream);
};

let readableEnded = stream.readableEnded ||
(rState && rState.endEmitted);
const onend = () => {
readable = false;
readableEnded = true;
if (!writable) callback.call(stream);
if (!writable || writableFinished) callback.call(stream);
};

const onerror = (err) => {
callback.call(stream, err);
};

const onclose = () => {
let err;
if (readable && !readableEnded) {
if (!isReadableEnded(stream))
err = new ERR_STREAM_PREMATURE_CLOSE();
return callback.call(stream, err);
return callback.call(stream, new ERR_STREAM_PREMATURE_CLOSE());
}
if (writable && !writableFinished) {
if (!isWritableFinished(stream))
err = new ERR_STREAM_PREMATURE_CLOSE();
return callback.call(stream, err);
return callback.call(stream, new ERR_STREAM_PREMATURE_CLOSE());
}
callback.call(stream);
};

const onrequest = () => {
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2 changes: 1 addition & 1 deletion test/parallel/test-stream-finished.js
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Original file line number Diff line number Diff line change
Expand Up @@ -181,7 +181,7 @@ const { promisify } = require('util');
const streamLike = new EE();
streamLike.readableEnded = true;
streamLike.readable = true;
finished(streamLike, common.mustCall);
finished(streamLike, common.mustCall());
streamLike.emit('close');
}

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