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ba513d140c
Adds the ability to for write streams to have an _final method which acts similarly to the _flush method that transform streams have but is called before the finish event is emitted and if asynchronous delays the stream from finishing. The `final` option may also be passed in order to set it. PR-URL: https://github.com/nodejs/node/pull/12828 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Refael Ackermann <refack@gmail.com>
25 lines
529 B
JavaScript
25 lines
529 B
JavaScript
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const stream = require('stream');
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let shutdown = false;
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const w = new stream.Writable({
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final: common.mustCall(function(cb) {
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assert.strictEqual(this, w);
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setTimeout(function() {
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shutdown = true;
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cb();
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}, 100);
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}),
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write: function(chunk, e, cb) {
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process.nextTick(cb);
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}
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});
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w.on('finish', common.mustCall(function() {
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assert(shutdown);
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}));
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w.write(Buffer.allocUnsafe(1));
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w.end(Buffer.allocUnsafe(0));
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