In most cases, named functions match the variable or property to which
they are being assigned. That also seems to be the practice in a series
of PRs currently being evaluated that name currently-anonymous
functions.
This change applies that rule to instances in the code base that don't
comply with that practice.
This will be enforceable with a lint rule once we upgrade to ESLint
3.8.0.
PR-URL: https://github.com/nodejs/node/pull/9113
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
2a4b068aca introduced a regression in where checking
`instanceof` would fail for `Writable` subclasses inside the
subclass constructor, i.e. before `Writable()` was called.
Also, calling `null instanceof Writable` or
`undefined instanceof Writable` would fail due to accessing the
`_writableState` property of the target object.
This fixes these problems.
PR-URL: https://github.com/nodejs/node/pull/9088
Ref: https://github.com/nodejs/node/pull/8834#issuecomment-253640692
Reviewed-By: Ilkka Myller <ilkka.myller@nodefield.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>
Use `[Symbol.hasInstance]()` to return `true` when asking for
`new Duplex() instanceof Writable`.
PR-URL: https://github.com/nodejs/node/pull/8834
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Calvin Metcalf <calvin.metcalf@gmail.com>
Improve message when tranform._transform() method is not implemented
Improve error message when Readable._read() is not implemented
Remove extra word in err msg when Writable._write() when not implemented
Remove extra word in err msg when Transform._transform() when not implemented
PR-URL: https://github.com/nodejs/node/pull/8801
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ilkka Myller <ilkka.myller@nodefield.com>
Let this function return `this` for parity with `readable.setEncoding()`.
PR-URL: https://github.com/nodejs/node/pull/5040
Fixes: https://github.com/nodejs/node/issues/5013
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Calvin Metcalf <calvin.metcalf@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
this harmonizes behavior between readable, writable, and transform
streams so that they all handle nulls in object mode the same way by
considering them invalid chunks.
PR-URL: https://github.com/nodejs/node/pull/6170
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Several changes:
* Soft-Deprecate Buffer() constructors
* Add `Buffer.from()`, `Buffer.alloc()`, and `Buffer.allocUnsafe()`
* Add `--zero-fill-buffers` command line option
* Add byteOffset and length to `new Buffer(arrayBuffer)` constructor
* buffer.fill('') previously had no effect, now zero-fills
* Update the docs
PR-URL: https://github.com/nodejs/node/pull/4682
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
These properties were initially used to determine stream status
back in node v0.8 and earlier. Since streams2 however, these
properties were *always* true, which can be misleading for
example if you are trying to immediately determine whether
a Writable stream is still writable or not (to avoid a "write after
end" exception).
PR-URL: https://github.com/nodejs/node/pull/4083
Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>
This commit fixes some error messages that are not consistent with
some general rules which most of the error messages follow.
PR-URL: https://github.com/nodejs/node/pull/3374
Reviewed-By: Roman Reiss <me@silverwind.io>
This comment was a bit misleading, since it was missing the `encoding`
argument.
PR-URL: https://github.com/nodejs/node/pull/3248
Reviewed-By: Brendan Ashworth <brendan.ashworth@me.com>
Changes included in this commit are
1. Making the deprecation messages consistent. The messages will be in
the following format
x is deprecated. Use y instead.
If there is no alternative for `x`, then the ` Use y instead.` part
will not be there in the message.
2. All the internal deprecation messages are printed with the prefix
`(node) `, except when the `--trace-deprecation` flag is set.
Fixes: https://github.com/nodejs/io.js/issues/1883
PR-URL: https://github.com/nodejs/io.js/pull/1892
Reviewed-By: Roman Reiss <me@silverwind.io>
Many of the util.is*() methods used to check data types
simply compare against a single value or the result of
typeof. This commit replaces calls to these methods with
equivalent checks. This commit does not touch calls to the
more complex methods (isRegExp(), isDate(), etc.).
Fixes: https://github.com/iojs/io.js/issues/607
PR-URL: https://github.com/iojs/io.js/pull/647
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
This commit introduces a nop function that is used as the
Writable.prototype.write() callback when one is not provided.
This saves on function object creation.
PR-URL: https://github.com/iojs/io.js/pull/564
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
This commit replaces a number of var statements throughout
the lib code with const statements.
PR-URL: https://github.com/iojs/io.js/pull/541
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
The copyright and license notice is already in the LICENSE file. There
is no justifiable reason to also require that it be included in every
file, since the individual files are not individually distributed except
as part of the entire package.
In cases where many small writes are made to a stream
lacking _writev, the array data structure backing the
WriteReq buffer would greatly increase GC pressure.
Specifically, in the fs.WriteStream case, the
clearBuffer routine would only clear a single WriteReq
from the buffer before exiting, but would cause the
entire backing array to be GC'd. Switching to [].shift
lessened pressure, but still the bulk of the time was
spent in memcpy.
This replaces that structure with a linked list-backed
queue so that adding and removing from the queue is O(1).
In the _writev case, collecting the buffer requires an
O(N) loop over the buffer, but that was already being
performed to collect callbacks, so slowdown should be
neglible.
PR-URL: https://github.com/joyent/node/pull/8826
Reviewed-by: Timothy J Fontaine <tjfontaine@gmail.com>
Reviewed-by: Trevor Norris <trev.norris@gmail.com>
Turn on strict mode for the files in the lib/ directory. It helps
catch bugs and can have a positive effect on performance.
PR-URL: https://github.com/node-forward/node/pull/64
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Fedor Indutny <fedor@indutny.com>
Default highWaterMark is now set properly when using stream Duplex's
writableObjectMode and readableObjectMode options.
Added condition to the already existing split objectMode test to ensure
the highWaterMark is being set to the correct default value on both the
ReadableState and WritableState for readableObjectMode and
writableObjectMode.
Signed-off-by: Fedor Indutny <fedor@indutny.com>
This commit introduces `readableObjectMode` and
`writableObjectMode` options for Duplex streams.
This can be used mostly to make parsers and
serializers with Transform streams.
Also the docs section about stream state objects
is removed, because it is not relevant anymore.
The example from the section is remade to show
new options.
fixes#6284
Signed-off-by: Timothy J Fontaine <tjfontaine@gmail.com>
If a write is above the highWaterMark, _write still manages to
fully send it synchronously, _writableState.length will be adjusted down
to 0 synchronously with the write returning false, but 'drain' will
not be emitted until process.nextTick.
If another small write which is below highWaterMark is issued before
process.nextTick happens, _writableState.needDrain will be reset to false,
and the drain event will never be fired.
So we should check needDrain before setting it up, which prevents it
from inproperly resetting to false.
Since the encoding is no longer relevant once it is decoded to a Buffer,
it is confusing and incorrect to pass the encoding as 'utf8' or whatever
in those cases.
Closes#6119
Pretty much everything assumes strings to be utf-8, but crypto
traditionally used binary strings, so we need to keep the default
that way until most users get off of that pattern.
This adds proper support for the following situation:
w.cork();
w.write(...);
w.cork();
w.write(...);
w.uncork();
w.write(...);
w.uncork();
This is relevant when you have a function (as we do in HTTP) that wants
to use cork, but in some cases, want to have a cork/uncork *around*
that function, without losing the benefits of writev.
In synchronous Writable streams (where the _write cb is called on the
current tick), the 'finish' event (and thus the end() callback) can in
some cases be called before all the write() callbacks are called.
Use a counter, and have stream.Transform rely on the 'prefinish' event
instead of the 'finish' event.
This has zero effect on most streams, but it corrects an edge case and
makes it perform more deterministically, which is a Good Thing.
Since 049903e, an end callback could be called before a write
callback if end() is called before the write is done. This patch
resolves the issue.
In collaboration with @gne
Fixes felixge/node-formidable#209
Fixes#5215
Italo A. Casas
Rich Trott
Anna Henningsen
ratikesh9
Alexander Makarenko
Calvin Metcalf
Matteo Collina
James M Snell
Brian White
micnic
Fábio Santos
Sakthipriyan Vairamani
Roman Reiss
Yosuke Furukawa
Trevor Norris
Sam Newman
cjihrig
isaacs
Chris Dickinson
Ben Noordhuis
Johnny Ray
Rod Vagg
Andrew Oppenlander
Vladimir Kurchatkin
Fedor Indutny
ayanamist
Mathias Buus
Matthew Aynalem