19 Commits

Author SHA1 Message Date
Ruben Bridgewater
d0667e814e
util: improve function inspection
This commit contains the following changes:

1) Add null prototype support for functions.
2) Safely detect async and generator functions.
3) Mark anonymous functions as such instead of just leaving out the
   name.

PR-URL: https://github.com/nodejs/node/pull/27227
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: John-David Dalton <john.david.dalton@gmail.com>
Reviewed-By: Anto Aravinth <anto.aravinth.cse@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
2019-05-02 23:22:38 +02:00
Ruben Bridgewater
c9fece38c8
util: change inspect compact and breakLength default
This changes the `compact` default from `true` to `3`. That mode
changes arrays to be grouped together, it alignes multiple small
entries on a single line in similar to `compact` true but only for
the most inner three depth levels and the closing brackets are
always on the same indentation as the openeing of the object instead
of at the same line as another property.

Big strings will be naturally broken into multiple lines instead of
having one huge line that is not well readable.

The output size mainly stays the same that way while it will be
smaller in case of big arrays.

Increasing the `breakLength` to 80 adjusts for most terminals that
support at least 80 characters in a single line and improves the
general output that way. A lot of calculations use the `breakLength`
to determine the concrete behavior.

PR-URL: https://github.com/nodejs/node/pull/27109
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Minwoo Jung <minwoo@nodesource.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
2019-04-10 17:59:14 +02:00
Ruben Bridgewater
4bfc06f6b5
util: improve proxy inspection
This makes sure the brace is actually handled as any other brace.
It was handled differently so far than any other brace and that had
an impact on how the output would be formatted.

PR-URL: https://github.com/nodejs/node/pull/26919
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
2019-03-28 12:24:51 +01:00
Ruben Bridgewater
a32cbe1597
util: fix proxy inspection
This prevents any proxy traps from being called while inspecting
proxy objects. That guarantees a side-effect free way of inspecting
proxies.

PR-URL: https://github.com/nodejs/node/pull/26241
Fixes: https://github.com/nodejs/node/issues/10731
Fixes: https://github.com/nodejs/node/issues/26231
Refs: https://github.com/nodejs/node/issues/25212
Refs: https://github.com/nodejs/node/issues/24765
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
2019-02-28 21:26:49 +01:00
Weijia Wang
6c7c77ef05
util: fix util.inspect with proxied function
PR-URL: https://github.com/nodejs/node/pull/25244
Fixes: https://github.com/nodejs/node/issues/25212
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Minwoo Jung <minwoo@nodesource.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>
2018-12-31 01:19:18 +01:00
Gus Caplan
7082c61e27 Revert "util: change util.inspect depth default"
This reverts commit ac7450a09a4c167cd43c14d7c88721d22f077529.

This fully reverts the changes to util.inspect depth.

It has caused breakage in logging to existing apps, and even
something as simple as `console.log(require)` will cause >1m freezes.

I've heard nothing but negative feedback (seriously not a single
person has expressed anything positive about this change) and
personally i find this change extremely annoying.

PR-URL: https://github.com/nodejs/node/pull/24326
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: John-David Dalton <john.david.dalton@gmail.com>
2018-11-14 19:44:39 -08:00
Ruben Bridgewater
ac7450a09a
util: change util.inspect depth default
The current default is not ideal in most use cases. Therefore it is
changed to inspect objects to a maximum depth of 20 in case
util.inspect is called with it's defaults. The default is kept at 2
when using console.log() and similar in the repl.

PR-URL: https://github.com/nodejs/node/pull/17907
Refs: https://github.com/nodejs/node/issues/12693

PR-URL: https://github.com/nodejs/node/pull/22846
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>
2018-10-02 22:43:09 +02:00
cjihrig
7e4b0a4850
util: make util binding internal
Refs: https://github.com/nodejs/node/issues/22160
PR-URL: https://github.com/nodejs/node/pull/22675
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
2018-09-05 21:53:11 -04:00
Anna Henningsen
849aaaeeb0
Revert "util: change util.inspect depth default"
This reverts commit b994b8eff6018433a56bb10dbc473cefa0dd9370.

This caused regressions in ecosystem code. While the change originally
was semver-major and could be postponed until after Node.js 10,
I think reverting it is a good choice at this point.

Also, I personally do not think defaulting to a shallow inspect
is a bad thing at all – quite the opposite: It makes `util.inspect()`
give an overview of an object, rather than providing a full
display of its contents. Changing the `depth` default to infinity
fundamentally changed the role that `util.inspect()` plays,
and makes output much more verbose and thus at times unusable
for `console.log()`-style debugging.

PR-URL: https://github.com/nodejs/node/pull/20017
Fixes: https://github.com/nodejs/node/issues/19405
Refs: https://github.com/nodejs/node/pull/17907
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
2018-05-11 17:46:56 +02:00
Ruben Bridgewater
caee112e52
test: remove assert.doesNotThrow()
There is actually no reason to use `assert.doesNotThrow()` in the
tests. If a test throws, just let the error bubble up right away
instead of first catching it and then rethrowing it.

PR-URL: https://github.com/nodejs/node/pull/18669
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
2018-02-16 16:53:47 +01:00
Ruben Bridgewater
b994b8eff6
util: change util.inspect depth default
The current default is not ideal in most use cases. Therefore it is
changed to showing unlimited depth in case util.inspect is called
directly. The default is kept as before for console.log and similar.

Using console.dir will now show a depth of up to five and
console.assert / console.trace will show a unlimited depth.

PR-URL: https://github.com/nodejs/node/pull/17907
Refs: https://github.com/nodejs/node/issues/12693
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
2018-01-16 15:34:03 +01:00
Ruben Bridgewater
f9ad23dc91
util: refactor inspect for performance and more
The main optimizations are
- Removed visibleKeys
- Removed proxy cache
- Removed Object.assign
- No key concatenating anymore
- No key recalculating anymore
- Improved indentation logic
- Improved string escape logic
- Added many fast paths
- Optimized code branches a lot
- Optimized (boxed) primitive handling
- Inline code if possible
- Only check extra keys if necessary
- Guard against unnecessary more expensive calls

This also fixes a bug with special array number keys as e.g. "00".

Besides that there were lots of smaller optimizations, the
code got a bit cleaned up and a few more tests got in.

PR-URL: https://github.com/nodejs/node/pull/14881
Fixes: https://github.com/nodejs/node/issues/15288
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
2017-09-14 21:52:58 -03:00
Sebastiaan Deckers
bb29405904
lib,src: fix consistent spacing inside braces
PR-URL: https://github.com/nodejs/node/pull/14162
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
2017-07-21 15:13:47 -04:00
Anna Henningsen
4a5a9445b5 util: use [Array] for deeply nested arrays
Prefer `[Array]` over `[Object]` because the latter is confusing.

PR-URL: https://github.com/nodejs/node/pull/12046
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
2017-03-28 13:11:07 -07:00
Rj Bernaldo
1377d5ac2e test: add second argument to assert.throws()
Adds a second argument to the assert.throws() test to implicitly specify
expected error message.

PR-URL: https://github.com/nodejs/node/pull/12016
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
2017-03-26 11:35:00 +02:00
Evan Lucas
76007079ec Revert "repl,util: insert carriage returns in output"
This reverts commit fce4b981eacbce0b85a2418d042f1f67d40e9834.

This was a breaking change and should have been marked semver-major.
The change that was made altered the output of util.format() and
util.inspect(). With how much those are used in the wild, this type of
change deserves more justification.

Fixes: https://github.com/nodejs/node/issues/8138
PR-URL: https://github.com/nodejs/node/pull/8143
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
2016-08-19 11:48:52 -05:00
JungMinu
fce4b981ea repl,util: insert carriage returns in output
`\n` is not enough for Linux with some custom stream
add carriage returns to ensure that the output is displayed correctly
using `\r\n` should not be a problem, even on non-Windows platforms.

Fixes: https://github.com/nodejs/node/issues/7954
PR-URL: https://github.com/nodejs/node/pull/8028
Reviewed-By: Brian White <mscdex@mscdex.net>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
2016-08-13 23:03:30 +09:00
Ali Ijaz Sheikh
9940766f8a
test: fix tests after V8 upgrade
* Changes to messages.
* V8 enabled proxy support by default. The --harmony_proxies flag is
  now gone.

PR-URL: https://github.com/nodejs/node/pull/6482
Reviewed-By: bnoordhuis - Ben Noordhuis <info@bnoordhuis.nl>
2016-06-29 10:44:25 +02:00
James M Snell
ba6196f843 util: fix inspecting of proxy objects
In certain conditions, inspecting a Proxy object can lead to a
max call stack error. Avoid that by detecting the Proxy object
and outputting information about the Proxy object itself.

Fixes: https://github.com/nodejs/node/issues/6464
PR-URL: https://github.com/nodejs/node/pull/6465
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
2016-05-03 10:08:24 -07:00