Previously, Error objects were formatted as the result of a `toString`
call bounded by square brackets. They are now formatted as the stack
trace for the given error object. The intention initially was to emulate
how browsers do `console.error` but since that would also impact
`console.warn`, `console.log`, etc, it was decided to make the change at
`util.inspect` level which is in turn used by the `console` package.
Fixes: nodejs#4452
PR-URL: https://github.com/nodejs/node/pull/4582
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
The `util.format()` is used frequently, make the method faster
is better.
R-URL: https://github.com/nodejs/node/pull/3964
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Brian White <mscdex@mscdex.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Determine object types of regular expressions, Dates, Maps, and
Sets in the C++ layer instead of depending on toString()
behavior in JavaScript.
PR-URL: https://github.com/nodejs/node/pull/4100
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Michaël Zasso <mic.besace@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
34a35919e1 added pretty printing for
TypedArray, ArrayBuffer, and DataView. This change allows inspecting
those across different contexts.
Since instanceof does not work across contexts, we can use
v8::Value::IsTypedArray, v8::Value::IsArrayBuffer, and
v8::Value::IsDataView
PR-URL: https://github.com/nodejs/node/pull/4098
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
These new checks are similar to the one introduced in 089d68861,
but for other types of objects. Specifically, if an object was
created in a different context, the constructor object will not be
the same as the constructor object in the current context, so we
have to compare constructor names instead.
PR-URL: https://github.com/nodejs/node/pull/3385
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michaël Zasso <mic.besace@gmail.com>
Move the method that was added in commit 8ca412b from earlier this month
from lib/util.js to lib/internal/util.js.
Avoids exposing a method that we may not wish to expose just yet, seeing
how it relies on implementation details.
PR-URL: https://github.com/nodejs/node/pull/4026
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
This commit adds the decorateErrorStack() method. This function
uses the internal util's getHiddenValue() method to extract
arrow messages from error objects and attach them to the
error's stack trace.
PR-URL: https://github.com/nodejs/node/pull/4013
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Remove util.pump and associated tests
PR-URL: https://github.com/nodejs/node/pull/2531
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/2530
Reviewed-By: Brian White <mscdex@mscdex.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Pretty-print typed arrays like regular arrays. Speeds up formatting by
almost 300% because it no longer stringifies the array indices.
Pretty-print ArrayBuffer and DataView as well by including byteLength,
byteOffset and buffer properties in the stringified representation.
PR-URL: https://github.com/nodejs/node/pull/3793
Reviewed-By: Trevor Norris <trev.norris@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>
PR-URL: https://github.com/nodejs/node/pull/3689
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
As per the `prefer-const` eslint rule, few instances of `let` have been
identified to be better with `const`. This patch updates all those
instances.
Refer: https://github.com/nodejs/node/issues/3118
PR-URL: https://github.com/nodejs/node/pull/3152
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>
Reviewed-By: Michaël Zasso <mic.besace@gmail.com>
The current implementation overwrites the prototype of the target
constructor. It is not allowed with ES2015 classes because the prototype
property is read only. Use Object.setPrototypeOf instead.
Fixes: https://github.com/nodejs/node/issues/3452
PR-URL: https://github.com/nodejs/node/pull/3455
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
The upgrade to v8 4.6 removes ObjectIsPromise. This change utilizes
v8::Value::IsPromise to verify that the argument is indeed a promise.
PR-URL: https://github.com/nodejs/node/pull/3221
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Previously, a MapIterator or SetIterator would
not be inspected properly. This change makes it possible
to inspect them by creating a Debug Mirror and previewing
the iterators to not consume the actual iterator that
we are trying to inspect.
This change also adds a node_util binding that uses
v8's Value::IsSetIterator and Value::IsMapIterator
to verify that the values passed in are actual iterators.
Fixes: https://github.com/nodejs/node/issues/3107
PR-URL: https://github.com/nodejs/node/pull/3119
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
In the event an Array is created in a Debug context, the constructor
will be Array, but !== Array. This adds a check
constructor.name === 'Array' to handle edge cases like that.
PR-URL: https://github.com/nodejs/node/pull/3119
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Use V8's builtin ObjectIsPromise() to check that the value is a promise
before creating the promise mirror. Reduces garbage collector strain
in the (common) non-promise case, which is beneficial when inspecting
deep object graphs.
PR-URL: https://github.com/nodejs/node/pull/3130
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
This commit modifies util.inspect(obj) to additionally show the name of
the function that constructed the object. This often reveals useful
information about the object's prototype. In other words, instead of
> new Cls
{}
we have
> new Cls
Cls {}
This also works with exotic objects:
> class ArrayCls extends Array {}
> new ArrayCls(1, 2, 3)
ArrayCls [ 1, 2, 3 ]
The names of "trivial" constructors like Object and Array are not shown,
unless there is a mismatch between the object representation and the
prototype:
> Object.create([])
Array {}
This feature is inspired by browser devtools.
PR-URL: https://github.com/nodejs/io.js/pull/1935
Reviewed-By: Roman Reiss <me@silverwind.io>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
We need the debug context to be able to inspect promises. However, this is
very expensive and should not be done on default startup.
PR-URL: https://github.com/nodejs/io.js/pull/2248
Reviewed-By: Brian White <mscdex@mscdex.net>
Reviewed-By: Michaël Zasso <mic.besace@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Christopher Monsanto <chris@monsan.to>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
When Object.prototype.toString is used to determine the type, we don't
have to explicitly check for other types. This patch removes the
redundant checks like that.
PR-URL: https://github.com/nodejs/io.js/pull/2179
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Michaël Zasso <mic.besace@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.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>
`printDeprecationMessage` is used to deprecate modules
and execution branches.
PR-URL: https://github.com/nodejs/io.js/pull/1822
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
This reverts commit 3fd7fc429c.
It was agreed that this change contained too much potential ecosystem
breakage, particularly around the inability to `delete` properties off a
`Url` object. It may be re-introduced for a later release, along with
better work on ecosystem compatibility.
PR-URL: https://github.com/iojs/io.js/pull/1602
Reviewed-By: Mikeal Rogers <mikeal.rogers@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Forrest L Norvell <forrest@npmjs.com>
Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>
Reviewed-By: Isaac Z. Schlueter <i@izs.me>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
This commit better handles calls to process.binding() in lib/ by
no longer lazy loading the bindings (the load times themselves are
rather miniscule compared to the load time of V8) and never reloading
the bindings (which is 172 times slower than referencing a variable with
the same value).
PR-URL: https://github.com/iojs/io.js/pull/1367
Reviewed-By: Brian White <mscdex@mscdex.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Currently, if util.format() is called with a string as its first
argument, and a Symbol as one of the subsequent arguments, an
exception is thrown due to an attempted implicit string conversion.
This commit causes Symbols to be explicitly converted.
Fixes: https://github.com/iojs/io.js/issues/927
PR-URL: https://github.com/iojs/io.js/pull/931
Reviewed-By: Domenic Denicola <domenic@domenicdenicola.com>
Everything that is not an object should be a primitive.
PR-URL: https://github.com/iojs/io.js/pull/739
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
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 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.
The _detailedException() helper function used to be local to the 'net'
module, but now that it has been moved to 'util' a more descriptive name
is desirable.
PR-URL: https://github.com/iojs/io.js/pull/250
Reviewed-By: Bert Belder <bertbelder@gmail.com>
This allows _detailedException() to be used by both the 'net' and
'dgram' modules to provide more informative error messages.
PR-URL: https://github.com/iojs/io.js/pull/250
Reviewed-By: Bert Belder <bertbelder@gmail.com>
Properties with symbol names are shown if option `showHidden` of `util.inspect`
or `console.dir` is `true`.
PR-URL: https://github.com/iojs/io.js/pull/247
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Rod Vagg <rod@vagg.org>
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>
* `util.inspect` cannot accept es6 symbol primitive
* It will throw exception if do `util.inspect(Symbol())`
* This also affects repl, console.log, etc.
Reviewed-by: Trevor Norris <trev.norris@gmail.com>
Reviewed-by: Chris Dickinson <christopher.s.dickinson@gmail.com>
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