Commit graph

8028 commits

Author SHA1 Message Date
Stefan Holderbach
9e445fd4c5
Rename SyntaxShape::Custom to CompleterWrapper (#10548)
# Description
The description `Custom` doesn't really reflect meaning in the set of
`SyntaxShape`. Makes it a bit more verbose but explicit


# User-Facing Changes
Only hypothetically breaking as plugins can not effectively use a
requirement on `SyntaxShape::Custom`.

# Tests + Formatting
(-)
2023-09-29 19:22:58 +02:00
Antoine Stevan
cc4f8bbd82
break the definition of LS_COLORS onto multiple lines (#10538)
related to 
- https://github.com/nushell/nushell/pull/10532

# Description
i was reviewing https://github.com/nushell/nushell/pull/10532 and
thought
> wait a minute, this line is huge and it's basically impossible to
review properly...

i had to grab the diff and throw some Nushell magic at it to see that it
was valid 😱

in this PR, i just split the loooooong string on the `:`, put that in a
list, join with `.join(":")` and borrow that to get a `str` 👌

# User-Facing Changes

# Tests + Formatting

# After Submitting
2023-09-29 19:12:46 +02:00
poketch
16453b6986
Making open case-insensitive to file extensions (#10451)
# Description

Closes #10441 

Uses `String::to_lowercase()` when the file's extension `ext` is parsed
to allow `from_decl(format!("from {ext}"))` to return the desired output
regardless of extension case.

It doesn't work with sqlite files since those are handled earlier in the
parsing but I think is good- since there's no standard file extension
used by sqlite so a user will likely want case sensitivity in that case.

This also has the (possibly undesired) effect of making `open`
completely case insensitive, e.g. `open foo.JSON` will work on a file
named `foo.json` and vice versa. This is good on Windows as it treats
`foo.json` and `foo.JSON` as the same file, but may not be the desired
behaviour on Unix.

If this behaviour is undesired I assume it would be fixed with a
`#[cfg(not(unix))]` attribute on the `to_lowercase()` operation but that
produces slightly "uglier" code that I didn't wish to submit unless
necessary. 

old behaviour:

![image](https://github.com/nushell/nushell/assets/79598494/261df577-e377-44ac-bef3-f6384bceaeb5)

new behaviour: 

![image](https://github.com/nushell/nushell/assets/79598494/04271740-a46f-4613-a3a6-1e220ef7f829)


# User-Facing Changes

`open` will now present a table when `open`-ing files with captitalized
extensions rather than the file's raw data

# Tests + Formatting

new test: `parses_file_with_uppercase_extension` which tests the desired
behaviour

---------

Co-authored-by: Stefan Holderbach <sholderbach@users.noreply.github.com>
2023-09-29 17:20:59 +02:00
Carson Riker
d6b9153ac5
Fix Default Prompt Tilde Insertion Logic (#10539)
This pr closes #10521.

# Description

The default prompt by nushell will replace `$nu.home-path` with `~`.
E.g. for a user named `user`, `/home/user` would become `~`. This also
works with sub paths, e.g. `/home/user/docs` would become `~/docs`.

The issue is that this replacement was a tad overzealous. A path like
`/home/user-with-suffix` would become `~-with-suffix`. This PR fixes the
issue by updating the home path detection logic.

# User-Facing Changes

The bugged behavior no longer occurs.

# Tests + Formatting

* `cargo` checks were not performed as this does not touch rust.
* The updated logic was tested against
[elvish](https://github.com/elves/elvish)'s path replacement logic, for
~10,000 randomly selected folders on a linux server. All paths were
processed the same.
2023-09-29 16:40:51 +02:00
Stefan Holderbach
80a183dde2
Fix editor config for reedline and config nu/env (#10535)
# Description
This merges @horasal 's changes from #10246 and #10269

Closes #10205
Closes #8714

Fixes the bug that editor paths with spaces are unusable

Closes #10210 
Closes #10269


# User-Facing Changes
You can now either pass a string with the name of the executable or a
list with the executable and any flags to
`$env.config.buffer_editor`/`$env.EDITOR`/`$env.VISUAL`

Both the external buffer editor of reedline (by default bound to
`Ctrl-o`) and the commands `config nu` and `config env` will respect
those variables in the following order:
1. `$env.config.buffer_editor`
2. `$env.EDITOR`
3. `$env.VISUAL`

Example:
```
$env.EDITOR = "nvim"                      # The system-wide EDITOR is neovim
$env.config.buffer_editor = ["vim" "-p2"] # Force vim to open two tabs (not particularly useful)
$env.config.buffer_editor = null          # Unset `buffer_editor` -> Uses `$env.EDITOR` ergo nvim
```
# Tests + Formatting
None

---------

Co-authored-by: Horasal <1991933+horasal@users.noreply.github.com>
2023-09-29 16:36:03 +02:00
Stefan Holderbach
f2af12af2c
Docstring some intricacies around SyntaxShape (#10544)
Inspired by @fdncred and @amtoine's questions
https://github.com/nushell/nushell/pull/10512#issuecomment-1739996967
2023-09-29 16:35:22 +02:00
Faïz Hernawan
7ad4c679b3
Add kitty protocol config to nushell (#10540)
# Description

Support keyboard enhancement protocol as implemented by Kitty console,
hence Kitty protocol.

This PR enables Nushell to use keybinding that is not available before,
such as Ctrl+i (that alias to Tab) or Ctrl+e (that alias to Esc, likely
I mistaken). After this PR merged and you set `use_kitty_protocol`
enabled, if your console app support Kitty protocol (WezTerm, Kitty,
etc.) you will be able to set more fine-grained keybinding.

For Colemak users, this feature is a blessing, because some Ctrl+[hjkl]
that previously unmap-able to Ctlr+[hnei] now it is.

# User-Facing Changes

This adds `use_kitty_protocol` config which defaults to false. When set
to `true`, it enables kitty protocol on the line editor when supported,
or else it warns.


---------

Co-authored-by: Stefan Holderbach <sholderbach@users.noreply.github.com>
2023-09-29 15:52:34 +02:00
Bob Hyman
9a0c6f2e02
glob with ../ prefix now works; (#10504)
Fixes #10503 
Also improves link to metacharacter help;

# Description
`glob` code was using pattern as provided by user. If that had leading
`..\`, `wax::Glob` is documented to treat them as literal chars to be
matched.
Fix is to use `wax::Glob.partition()` to split such invariant prefixes
off the pattern and tack them onto the working directory computed
separately.

Before
```
> ls ..
╭───┬───────┬──────┬──────┬───────────────╮
│ # │ name  │ type │ size │   modified    │
├───┼───────┼──────┼──────┼───────────────┤
│ 0 │ ../r1 │ dir  │  7 B │ 3 hours ago   │
│ 1 │ ../r2 │ dir  │  3 B │ a day ago     │
│ 2 │ ../r3 │ dir  │ 13 B │ 4 minutes ago │
╰───┴───────┴──────┴──────┴───────────────╯
> glob ../r*
╭────────────╮
│ empty list │
╰────────────╯
```
After 
```
> glob ../r*
╭───┬──────────────────────────────╮
│ 0 │ /home/bobhy/src/rust/work/r2 │
│ 1 │ /home/bobhy/src/rust/work/r1 │
│ 2 │ /home/bobhy/src/rust/work/r3 │
╰───┴──────────────────────────────╯
```

# User-Facing Changes
None

# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`

# After Submitting
<!-- If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
-->

---------

Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
2023-09-29 06:48:55 -05:00
Reilly Wood
78d0e1d0b8
explore: highlight selected cell using background colour instead of cursor (#10533)
More incremental `explore` improvements!

This PR removes the `show_cursor` config from the `explore` command, in
favour of always using the background colour to highlight the selected
cell. I believe this is a better default and I'd like to remove the
`show_cursor` functionality entirely as part of the effort to simplify
`explore`.

The style for selected cells is still configurable. I went with light
blue for the default background colour, it looks OK to me.

## Before:

![Screenshot from 2023-09-27
08-51-03](https://github.com/nushell/nushell/assets/26268125/798636be-a4ea-467f-b852-c0e929e4aa9d)


## After:

![Screenshot from 2023-09-27
08-50-59](https://github.com/nushell/nushell/assets/26268125/c88662e7-05b5-42a7-bf30-b03c70fba79d)
2023-09-28 20:17:56 -05:00
Stefan Holderbach
dc739f703a
Remove parsing literals of unrepresentable SyntaxShapes (#10512)
# Description
Those `SyntaxShape`s can not coerce to `Value`s or `Type`s that can be
used by the user in an argument or input-output-type position.
Supporting them doesn't make sense.

# User-Facing Changes
Removal of useless "types" in argument type or input/output type
positions

# Tests + Formatting
No adjustment necessary
2023-09-28 22:36:47 +02:00
1256-bits
ac7263d957
Change LS_COLORS to highlight .fb2 files as text documents (#10532)
close #10396
# Description
Change LS_COLORS variable to bring the highlighting for .fb2 files in
line with other types of text documents
### Before
![ls with current LS_COLORS](https://i.imgur.com/KL0nG2y.png)
### After
![ls with changed LS_COLORS](https://i.imgur.com/ZFcLVL3.png)
2023-09-28 19:33:14 +02:00
WindSoilder
9c52b93975
allow early return outside of main (#10514)
# Description
Fixes: #9792

When evaluating file, we need to allow early return if we evaluate
script file first.
2023-09-28 18:49:42 +02:00
Mark Lansky
80220b722b
Completions: add support for doas as for sudo (#10256)
# Description

Fixes #2047 but for the `doas` command the same way as in #8094

# User-Facing Changes
No breaking changes. If people not using `doas`, no difference at all.

# Tests
I have not added any tests since its using same logic as for "sudo". I
guess if something would go wrong in this part, sudo tests will cover
it?

# Additional context
As a nushell user I could not find a way to implement custom completion
for a "sudo like command". Since I can see `sudo` being hardcoded in
sources, this is what I propose.

~~Also I have almost zero knowledge of rust and this is definitely not
the clean way yet~~

---------

Co-authored-by: Stefan Holderbach <sholderbach@users.noreply.github.com>
2023-09-28 15:29:57 +02:00
Stefan Holderbach
d1dc610769
Remove unused SyntaxShape::Variable (#10511)
# Description
We don't use this shape during parsing and never reference it in command
signatures. Thus it should be removed.

# User-Facing Changes
None functional.
Plugin authors that used it would never be provided with data that
specifically matched `SyntaxShape::Variable`
Builds using it will now fail.

# Tests + Formatting
NA
2023-09-28 11:53:03 +02:00
Stefan Holderbach
cc767463e6
Rename random integer to random int (#10520)
# Description
Consistently use `int` for types and commands

h/t @1kinoti

Work for #10332

# User-Facing Changes
Deprecate `random integer` in the next release

New command `random int`

# Tests + Formatting
(-)
2023-09-28 11:47:05 +02:00
fnuttens
8f4ea69c22
Add support for HTTP proxy in network commands (#10401)
Closes https://github.com/nushell/nushell/issues/8847

# Description

If the `HTTP_PROXY` variable is found, use its value to setup ureq
proxy. I haven't implemented `NO_PROXY` at the moment.

# User-Facing Changes

No breaking change for the user, the network commands simply use an
environment variable.

# Tests + Formatting

The existing tests seem to run fine, although I can't think of a new
test to add.
2023-09-27 15:43:34 +08:00
Antoine Stevan
6c026242d4
remove the $nothing variable (#10478)
related to 
- https://github.com/nushell/nushell/pull/9973
- https://github.com/nushell/nushell/pull/9918

thanks to @jntrnr and their super useful tips on this PR, i learned
about the parser + evaluation, so 🙏

# Description
because we already have `null` as the value of the type `nothing` and as
a followup to the two other attempts of mine, i propose to remove the
redundant `$nothing` built-in variable 😋

this PR is the first step, deprecating `$nothing`.
a followup PR will remove it altogether and wait for 0.87 👍 

⚙️ **details**: a new `NOTHING_VARIABLE_ID = 3` has been added,
parsing `$nothing` will create it, finally a `Value::Nothing` will be
produced and a warning will be reported.

this PR already fixes the `toolkit.nu` module so that it does not throw
a bunch of warnings each time 👌

# User-Facing Changes
`$nothing` is now deprecated and will be removed in 0.87
```nushell
> $nothing
Error:   × Deprecated variable
   ╭─[entry #1:1:1]
 1 │ $nothing
   · ────┬───
   ·     ╰── `$nothing` is deprecated and will be removed in 0.87.
   ╰────
  help: Use `null` instead
```

# Tests + Formatting
tests have been updated, especially
- `nothing_fails_string`
- `nothing_fails_int`
which use a variable called `nil` now to make sure `nothing` does not
support cell paths 👍

# After Submitting
classic deprecation mention 👍
2023-09-26 18:49:28 +02:00
Stefan Holderbach
4a26719b0c
Bump dialoguer to 0.11.0 (#10510)
Includes fixes for breaking changes
Supersedes #10494
2023-09-26 18:00:16 +02:00
WindSoilder
d2f513da36
make better error message for not operator (#10507)
Fixes: #10476

After the change, the error message will be something like this:
```nushell
❯ not null
Error: nu:🐚:type_mismatch

  × Type mismatch.
   ╭─[entry #11:1:1]
 1 │ not null
   ·     ──┬─
   ·       ╰── expected bool, found nothing
   ╰────
```
2023-09-26 14:53:59 +02:00
Antoine Stevan
feef612388
show the full directory / file path in "directory not found" error (#10430)
should close https://github.com/nushell/nushell/issues/10406

# Description
when writing a script, with variables you try to `ls` or `open`, you
will get a "directory not found" error but the variable won't be
expanded and you won't be able to see which one of the variable was the
issue...

this PR adds this information to the error.

# User-Facing Changes
let's define a variable
```nushell
let does_not_exist = "i_do_not_exist_in_the_current_directory"
```
### before
```nushell
> open $does_not_exist
Error: nu:🐚:directory_not_found

  × Directory not found
   ╭─[entry #7:1:1]
 1 │ open $does_not_exist
   ·      ───────┬───────
   ·             ╰── directory not found
   ╰────
```
```nushell
> ls $does_not_exist
Error: nu:🐚:directory_not_found

  × Directory not found
   ╭─[entry #8:1:1]
 1 │ ls $does_not_exist
   ·    ───────┬───────
   ·           ╰── directory not found
   ╰────
```

### after
```nushell
> open $does_not_exist
Error: nu:🐚:directory_not_found

  × Directory not found
   ╭─[entry #3:1:1]
 1 │ open $does_not_exist
   ·      ───────┬───────
   ·             ╰── directory not found
   ╰────
  help: /home/amtoine/documents/repos/github.com/amtoine/nushell/i_do_not_exist_in_the_current_directory does not exist
```
```nushell
> ls $does_not_exist
Error: nu:🐚:directory_not_found

  × Directory not found
   ╭─[entry #4:1:1]
 1 │ ls $does_not_exist
   ·    ───────┬───────
   ·           ╰── directory not found
   ╰────
  help: /home/amtoine/documents/repos/github.com/amtoine/nushell/i_do_not_exist_in_the_current_directory does not exist
```

# Tests + Formatting
shouldn't harm anything 🤞 

# After Submitting
2023-09-26 17:38:58 +08:00
Maxim Zhiburt
65074ec449
nu-table: Fix failing test (relied on termwidth assumptions) (#10492)
close #10468

You can check on different term sizes.
2023-09-25 18:17:42 +02:00
Poliorcetics
a19cac2673
Command: Add config env/nu --default to print defaults (#10480)
<!--
if this PR closes one or more issues, you can automatically link the PR
with
them by using one of the [*linking
keywords*](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue#linking-a-pull-request-to-an-issue-using-a-keyword),
e.g.
- this PR should close #xxxx
- fixes #xxxx

you can also mention related issues, PRs or discussions!
-->

# Description
<!--
Thank you for improving Nushell. Please, check our [contributing
guide](../CONTRIBUTING.md) and talk to the core team before making major
changes.

Description of your pull request goes here. **Provide examples and/or
screenshots** if your changes affect the user experience.
-->

Closes #5436

When I opened this issue more than a year ago, I mainly wanted the
following capacity: easily access the full env and have the hability to
update it when a new version of `nushell` comes out.

With this PR I can now do the following:

```nu
source-env ~/.config/nushell/defaults/env.nu
source     ~/.config/nushell/defaults/config.nu

# Update nushell default config & env file (run this after a version update)
def update-defaults [] {
    config env --default | save -f ~/.config/nushell/defaults/env.nu
    config nu  --default | save -f ~/.config/nushell/defaults/config.nu
}
```

Which is more than enough for me. Along with `nushell` respecting the
XDG spec on macOS (`dirs-next` should be banned for CLI tools on macOS),
this should be one of the last hurdle before fully switching for me!

# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->

Two new switches to existing commands:

```nu
config env --default # Print the default env embedded at compile time in the binary
config nu  --default # Print the default config embedded at compile time in the binary
```

# Tests + Formatting
<!--
Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used` to
check that you're using the standard code style
- `cargo test --workspace` to check that all tests pass (on Windows make
sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
- `cargo run -- -c "use std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library

> **Note**
> from `nushell` you can also use the `toolkit` as follows
> ```bash
> use toolkit.nu # or use an `env_change` hook to activate it
automatically
> toolkit check pr
> ```
-->

- Added a test for the output of `config env --default`
- Added a test for the output of `config nu --default`

# After Submitting
<!-- If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
-->

Are the docs for commands generated automatically or do I need to make a
PR there too ? It's no problem if so, just point me at instructions if
there are any :)
2023-09-25 08:00:59 -05:00
Justin Ma
5326e51e4f
Improve release script for github release workflow (#10502)
# Description

Improve release script for Github release workflow: Just some small
improvements
2023-09-25 19:55:51 +08:00
dependabot[bot]
b39cca91e5
Bump crate-ci/typos from 1.16.11 to 1.16.13 (#10493) 2023-09-25 11:02:27 +00:00
dependabot[bot]
57825a5c45
Bump rayon from 1.7.0 to 1.8.0 (#10497) 2023-09-25 11:00:05 +00:00
Darren Schroeder
19cee5fda1
fix magenta_reverse and friends (#10491)
# Description

Magenta wasn't being interpreted correctly. note that `bg:
magenta_reverse attr: b` showed up as white. This was because it was
missing from the lookup and it was defaulting to white.

fixes #10490 

### Before

![image](https://github.com/nushell/nushell/assets/343840/0cf69ab8-813e-42e4-aea5-5db231f29f74)

### After

![image](https://github.com/nushell/nushell/assets/343840/d36f18f3-514d-443a-8bc8-cda2fed09615)


# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->

# Tests + Formatting
<!--
Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used` to
check that you're using the standard code style
- `cargo test --workspace` to check that all tests pass (on Windows make
sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
- `cargo run -- -c "use std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library

> **Note**
> from `nushell` you can also use the `toolkit` as follows
> ```bash
> use toolkit.nu # or use an `env_change` hook to activate it
automatically
> toolkit check pr
> ```
-->

# After Submitting
<!-- If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
-->
2023-09-24 14:43:17 -05:00
Justin Ma
95a4649cc9
Update winget submission workflow include only default msi files (#10487)
### Update winget submission workflow include only default msi files:
---
The new release workflow after
https://github.com/nushell/nushell/pull/10457 will add full featured
packages like: `nu-*-x86_64-windows-msvc-full.msi` and
`nu-*-aarch64-windows-msvc-full.msi` (A release preview could be found
here: https://github.com/nushell/nightly/releases/tag/nightly-6a2fd91 )
and this change will make sure only the default packages will be
included just the same as before to make sure that nothing will be
broken.

BTW: Due to lots of changes made recently about the release workflow, I
will stand-by for the next release.
2023-09-24 07:52:10 -05:00
Artemiy
e96039fb1b
Fix default argument value type checking (#10460)
# Description
Fix type checking in arguments default values not adhering to subtyping
rules
Currently following examples produce a parse error:
```nu
def test [ --qwe: record<a: int> = {a: 1 b: 1} ] { }
def test [ --qwe: list<any> = [ 1 2 3 ] ] { }
```
despite types matching. Type equality check is replaced with subtyping
check and everything parses fine:
# User-Facing Changes
Default values of flag arguments type checking behavior is in line with
`let` statements
2023-09-24 11:30:58 +02:00
Artemiy
65e2733571
Allow complex types in input/output and let (#10405)
# Description
This PR fixes #9702 on the side of parse. I.e. input/output types in
signature and type annotations in `let` now should correctly parse with
type annotations that contain commas and spaces:

![image](https://github.com/nushell/nushell/assets/17511668/babc0a69-5cb3-46c2-98ef-6da69ee3d3be)

# User-Facing Changes
Return values and let type annotations now can contain stuff like
`table<a: int b: record<c: string d: datetime>>` e.t.c
2023-09-24 11:01:21 +02:00
Bob Hyman
bc437da5c7
std dt datetime-diff: fix uninitialized field ref when borrowing (#10466)
fixes #10455 

@KAAtheWiseGit, I'm sorry, I didn't mean to block your first PR #10461,
didn't see you had submitted it till I got around to submitting this. If
you want to incoporate useful ideas from this PR into yours, I do not
mind deferring to you.


# Description
Changes made in `datetime-diff`:
* Initialize millisecond and microsecond fields in `$current`, to fix
the error when borrow needs to refer to them.
* Fix `borrow_nanoseconds` to borrow from seconds, not from (unused)
microseconds.
* Added error check to insist that first argument is >= second argument.
`datetime-diff` doesn't represent negative durations correctly (it tries
to borrow out of the year, resulting in negative year and positive all
other fields). We don't currently have a use case requiring negative
durations.
* Add comments so help is a bit clearer (I was surprised that the first
argument, named `$from` was actually supposed to be the *later*
datetime. The order of arguments is reasonable (reminiscent of <later>
<minus> <earlier>), so I just changed the param name to match its
purpose.

Changes made in `pretty-print-duration`:
* changed type of argument from `duration` to `record`. (it's not clear
why Nu was not complaining about this!)
* changed test for skipping a clause from `> 0` to `!= 0`. Even though
`datetime-diff` won't present a negative field in the record, user might
call `pretty-print-duration` with one, might as well handle it. (but I
think `hour:-2` will be rendered as `-2hr`, not `-2hrs`...).
* added help and an example.

# User-Facing Changes
none requiring code changes.

# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
- 
- # After Submitting
<!-- If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
-->
2023-09-24 10:53:56 +02:00
Justin Ma
65c4083ae6
feat: Update nightly build workflow add full release support (#10485) 2023-09-24 10:15:38 +08:00
Antoine Stevan
6a2fd91a01
show the whole path in "missing mod.nu" errors (#10416) 2023-09-23 16:30:03 +03:00
Antoine Stevan
b6d31e0e45
fix public boolean switches in the standard library (#10477)
related to
- https://github.com/nushell/nushell/pull/10456

# Description
this PR will fix the public API of the standard library by removing the
type annotations from public boolean switches.

1. the signature before
```nushell
clip [--silent: bool, --no-notify: bool, --no-strip: bool, --expand (-e): bool, --codepage (-c): int]
```
2. the signature after
```nushell
clip [--silent, --no-notify, --no-strip, --expand (-e), --codepage (-c): int]
```

# User-Facing Changes
### before
```nushell
> "foo" | clip
Error: nu:🐚:cant_convert

  × Can't convert to bool.
     ╭─[NU_STDLIB_VIRTUAL_DIR/std/mod.nu:148:1]
 148 │         $in
 149 │         | if $expand { table --expand } else { table }
     ·              ───┬───
     ·                 ╰── can't convert nothing to bool
 150 │         | into string
     ╰────
```

### after
```nushell
> "foo" | clip
foo
saved to clipboard
```

# Tests + Formatting

# After Submitting
2023-09-23 06:40:28 -05:00
WindSoilder
d2c87ad4b4
differentiating between --x and --x: bool (#10456)
# Description
Fixes: #10450 

This pr differentiating between `--x: bool` and `--x`

Here are examples which demostrate difference between them:
```nushell
def a [--x: bool] { $x };
a --x    # not allowed, you need to parse a value to the flag.
a        # it's allowed, and the value of `$x` is false, which behaves the same to `def a [--x] { $x }; a`
```

For boolean flag with default value, it works a little bit different to
#10450 mentioned:
```nushell
def foo [--option: bool = false] { $option }
foo                  # output false
foo --option         # not allowed, you need to parse a value to the flag.
foo --option true    # output true
```

# User-Facing Changes
After the pr, the following code is not allowed:
```nushell
def a [--x: bool] { $x }; a --x
```

Instead, you have to pass a value to flag `--x` like `a --x false`. But
bare flag works in the same way as before.

## Update: one more breaking change to help on #7260 
```
def foo [--option: bool] { $option == null }
foo
```
After the pr, if we don't use a boolean flag, the value will be `null`
instead of `true`. Because here `--option: bool` is treated as a flag
rather than a switch

---------

Co-authored-by: amtoine <stevan.antoine@gmail.com>
2023-09-23 10:20:48 +02:00
Justin Ma
a26a01c8d0
Add full releases of Nu binaries along with the standard releases (#10457)
# Description

Add full releases of Nu binaries along with the standard releases,
close: https://github.com/nushell/nushell/issues/10322

A full release means:

1. Build with `--features=dataframe,extra` flag
2. Contains `-full` in the package name

### **A test release could be found in the nushell/nightly Repo:
https://github.com/nushell/nightly/releases/tag/v0.85.1**
The action running log:
https://github.com/nushell/nightly/actions/runs/6260611553

# User-Facing Changes

Will attach the following release packages along with the official ones
as before:

1. nu-*-aarch64-darwin-full.tar.gz
2. nu-*-aarch64-linux-gnu-full.tar.gz
3. nu-*-aarch64-windows-msvc-full.msi
4. nu-*-aarch64-windows-msvc-full.zip
5. nu-*-x86_64-darwin-full.tar.gz
6. nu-*-x86_64-linux-gnu-full.tar.gz
7. nu-*-x86_64-linux-musl-full.tar.gz
8. nu-*-x86_64-windows-msvc-full.msi
9. nu-*-x86_64-windows-msvc-full.zip
2023-09-23 09:41:08 +08:00
Yash Thakur
414216edfa
Transient prompt (#10391)
## Description

This PR uses environment variables to enable and set a transient prompt,
which lets you draw a different prompt once you've entered a command and
you've moved on to the next line. This is useful if you have a fancy
two-line prompt with a bunch of info about time and git status that you
don't really need in your scrollback buffer.

Here's a screenshot. You can see how my usual prompt has two lines and
would take up a lot more space if every past command also used the full
prompt, but reducing past prompts to `🚀` or `>` makes it take up less
space.

![image](https://github.com/nushell/nushell/assets/45539777/dde8d0f5-f95f-4529-9a14-b7919bd51126)

I added the following lines to my `env.nu` to get that rocket as the
prompt initially:
```nu
$env.TRANSIENT_PROMPT_COMMAND = {|| "" }
$env.TRANSIENT_PROMPT_INDICATOR = {|| open --raw "~/.prompt-indicator" }
$env.TRANSIENT_PROMPT_INDICATOR_VI_INSERT = $env.TRANSIENT_PROMPT_INDICATOR
```

## User-Facing Changes

If you want to change a segment of the prompt, set the corresponding
`TRANSIENT_PROMPT_*` variable.

<!-- If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
-->

## Problems/Things to Consider:
- The transient prompt clones the `Stack` at the very beginning of the
session and keeps that around. I'm not sure if that could cause
problems, but if so, it could probably take an `Arc<State>` instead.
- This isn't truly a problem, but now there's even more environment
variables, which is kinda annoying.
- There might be some performance issues with creating a new
`NushellPrompt` object and cloning the `Stack` for every segment of the
transient prompt. What's more, the transient prompt is added to the
`Reedline` object whether or not the user has enabled transient prompt,
so if there are indeed performance issues, simply disabling the
transient prompt won't help.
- Perhaps instead of a separate `TRANSIENT_PROMPT_INDICATOR_VI_INSERT`
and `TRANSIENT_PROMPT_INDICATOR_VI_NORMAL`, `TRANSIENT_PROMPT_INDICATOR`
could be used for both (if it exists). Insert and normal mode don't
really matter for previously entered commands.
2023-09-22 14:35:09 -05:00
Andreas Källberg
6df001f72d
Prevent cubic time on nested parentheses (#10467)
<!--
if this PR closes one or more issues, you can automatically link the PR
with
them by using one of the [*linking
keywords*](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue#linking-a-pull-request-to-an-issue-using-a-keyword),
e.g.
- this PR should close #xxxx
- fixes #xxxx

you can also mention related issues, PRs or discussions!
-->

# Description
<!--
Thank you for improving Nushell. Please, check our [contributing
guide](../CONTRIBUTING.md) and talk to the core team before making major
changes.

Description of your pull request goes here. **Provide examples and/or
screenshots** if your changes affect the user experience.
-->

When parse_range get an item like ((((1..2)))) it would try to parse
"((((1" with a long chain of recursive parsers, namely:
- parse_value
- parse_paren_expr
- parse_full_cell_path
- parse_block
- parse_pipeline
- parse_builtin_commands
- parse_expression
- parse_math_expression
- parse_value
- ...

where `parse_paren_expr` calls `parse_range` in turn. Because at any
time in the chain `parse_paren_expr` can call `parse_range`, which will
then continue the chain, we get quadratic number of function calls, each
linear on the size of the input

By checking with the lexer that the parens are matched, we prevent the
long chain from being called on unmatched braces. Now, this is still
more quadratic than it needs to be, to fix that, we should process
parens only once, instead of on each recursive call

# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
Speed improvements in some edge cases

# Tests + Formatting
Not sure how to test this, maybe I could add a benchmark
<!--
Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used` to
check that you're using the standard code style
- `cargo test --workspace` to check that all tests pass (on Windows make
sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
- `cargo run -- -c "use std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library

> **Note**
> from `nushell` you can also use the `toolkit` as follows
> ```bash
> use toolkit.nu # or use an `env_change` hook to activate it
automatically
> toolkit check pr
> ```
-->

# After Submitting
<!-- If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
-->

# Other notes
Found using the fuzzer, by setting a timeout on max run-time. It also
found a stack-overflow on too many parentheses, which this doesn't fix.
2023-09-23 04:24:35 +12:00
Darren Schroeder
4880721b73
evaluate $nu during --ide-check (#10470)
# Description

This PR fixes a bug found by @kubouch where `$nu` is not evaluated as a
constant when the `--ide-check` parameter is passed to nushell for the
LSP-like functionality. Not quite sure my changes are proper but it
seems to work!

### Before

![image](https://github.com/nushell/nushell/assets/343840/72ba28fe-74a1-450a-8a75-8d152c3a15b1)


### After

![image](https://github.com/nushell/nushell/assets/343840/1f70985b-4350-4e3f-8708-0aead3f5a505)


# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->

# Tests + Formatting
<!--
Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used` to
check that you're using the standard code style
- `cargo test --workspace` to check that all tests pass (on Windows make
sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
- `cargo run -- -c "use std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library

> **Note**
> from `nushell` you can also use the `toolkit` as follows
> ```bash
> use toolkit.nu # or use an `env_change` hook to activate it
automatically
> toolkit check pr
> ```
-->

# After Submitting
<!-- If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
-->

---------

Co-authored-by: Jakub Žádník <kubouch@gmail.com>
2023-09-22 10:53:25 -05:00
Stefan Holderbach
1bb953877e
Improve select row perf for large N (#10355)
# Description
While reviewing #10350 I noticed that a `HashSet<usize>` was used to
deduplicate the incoming rows, which are then sorted after cloning to a
separate `Vec`. This sounds like a candidate for a `BTreeSet` which
guarantees the ordering.

In the process I removed some dead code.

- Use `BTreeSet` instead of `HashSet`
- Remove dead `skip` logic
- Use `BTreeSet` directly in `NthIterator`
- Consume `BTreeSet` through `Peekable<IntoIter>`
2023-09-21 23:51:13 +02:00
Stefan Holderbach
ef7ade59f3
Split up nu-protocol/src/engine/engine_state.rs (#10368)
Factor the big parts into separate files:
- `state_delta.rs`
- `state_working_set.rs`
- smaller `usage.rs`

This required adjusting the visibility of several parts.
Makes `StateDelta` transparent for the module.
Trying to reduce visibility in some other places
2023-09-21 22:53:36 +02:00
George Padley
1c677c9577
Map DirectoryNotFound to FileNotFound for open command (#10089)
# Description


This PR should close #10085
Maps `DirectoryNotFound` errors to `FileNotFound`. All other errors are
left unchanged.

# User-Facing Changes

This means a user will see `FileNotFound` instead of `DirectoryNotFound`
which is more meaning full to the user.
2023-09-21 20:17:44 +02:00
Stefan Holderbach
1072bd06c3
Improve assertions in src/tests.rs (#10449)
# Description
Mention the expected substring in:
- `fn run_test_contains()`
- `fn test_ide_contains()`
- `fn fail_test()`


# Developer-Facing Changes
You can read the test failure to figure out what is going on, don't
necessarily have to look up the test

New look of failure
```
failures:

---- tests::test_math::broken_math stdout ----
stdout:
stderr: Error: nu::parser::incomplete_math_expression

  × Incomplete math expression.
   ╭─[/tmp/.tmpz0V8nC:1:1]
 1 │ 3 +
   ·   ┬
   ·   ╰── incomplete math expression
   ╰────


Expected error to contain: Incomplete universe
thread 'tests::test_math::broken_math' panicked at 'assertion failed: !stderr.is_empty() && stderr.contains(expected)', src/tests.rs:181:5
```
2023-09-21 20:12:36 +02:00
Stefan Holderbach
4aa9102523
Simplify nu! test macros. (#10403)
# Description
Unify the logic between `nu!` and `nu_with_std!`.
The inner code actually does not contain any variadic components. So it
can safely be abstracted into a function.
Similarly simplify the variadic to an array in `nu_with_plugin!`

This also seems to simplify the codegen for tests.

Comparing the size of the `/target/debug` folder after running:

```sh
cargo clean --profile dev
cargo build --workspace --tests
```

With this branch a reduction from `8.9GB` to `8.7GB`

# User-Facing Changes
None

# Tests + Formatting
No changes necessary
2023-09-21 20:11:56 +02:00
Stefan Holderbach
0c7a8e3634
Remove dead BSON related tests (#10458)
Those tests where behind a feature flag `bson` that is never defined in
`Cargo.toml`

Remove them.
2023-09-21 20:01:49 +02:00
Michael Angerman
addf8ca942
update the doc in toolchain.toml describing the update plan (#10453)
The *toolchain.toml* doc incorrectly stated how many releases behind
stable we will be...

It said we would be 1 release behind when actually we want to be 2
releases behind stable.
2023-09-20 20:34:25 -07:00
Maxim Zhiburt
7cfd4d2cfa
nu-table: Add table option --abbreviated (#10399)
- Added `--abbreviated`/`-a` option
- Adedd `abbreviate_if_longer_than` config opt for it.

```nu
ls | table -a 3
```

```
╭───┬────────────────────┬──────┬───────────┬──────────────╮
│ # │        name        │ type │   size    │   modified   │
├───┼────────────────────┼──────┼───────────┼──────────────┤
│ 0 │ CODE_OF_CONDUCT.md │ file │   3.4 KiB │ 4 days ago   │
│ 1 │ CONTRIBUTING.md    │ file │  18.3 KiB │ 2 weeks ago  │
│ 2 │ Cargo.lock         │ file │ 144.3 KiB │ 15 hours ago │
│ 3 │ ...                │ ...  │ ...       │ ...          │
│ 4 │ tests              │ dir  │   4.0 KiB │ 4 months ago │
│ 5 │ toolkit.nu         │ file │  14.6 KiB │ 5 days ago   │
│ 6 │ wix                │ dir  │   4.0 KiB │ 2 months ago │
╰───┴────────────────────┴──────┴───────────┴──────────────╯
```

```nu
$env | table -a 3
```

```
╭──────────────────┬──────────────────────────────────────────────────────────────────────────╮
│ BROWSER          │ firefox                                                                  │
│ CARGO            │ /home/maxim/.rustup/toolchains/1.70.0-x86_64-unknown-linux-gnu/bin/cargo │
│ CARGO_HOME       │ /home/maxim/.cargo                                                       │
│ ...              │ ...                                                                      │
│ XDG_SESSION_TYPE │ x11                                                                      │
│ XDG_VTNR         │ 7                                                                        │
│ _                │ /home/maxim/.cargo/bin/cargo                                             │
╰──────────────────┴──────────────────────────────────────────────────────────────────────────╯
```

close #10393

PS: Maybe as a separate issue (good candidate for `GOOD FIRST ISSUE`)
add a config option to change a default `...` truncation sign to a
custom? (which would be applicable not only for `--abbreviated` but all
kind of tables)

---------

Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
2023-09-20 12:59:08 -05:00
Darren Schroeder
4ae53d93fb
new command: into value (#10427)
# Description

This new command `into value` is a command that tries to infer the type
of data you have in a table. It converts each cell to a string and then
runs a set of regular expressions on that string. This was mostly
cobbled together after looking at how polars does similar things. The
regular expressions were taken straight form polars and tweaked.

### Before
```nushell
❯ [[col1 col2 col3 col4 col5 col6]; ["1" "two" "3.4" "true" "2023-08-10 14:07:17.922050800 -05:00" "2023-09-19"]] |
  update col1 {|r| $r.col1 | into int } |
  update col3 {|r| $r.col3 | into float } |
  update col4 {|r| $r.col4 | into bool } |
  update col5 {|r| $r.col5 | into datetime } |
  update col6 {|r| $r.col6 | into datetime }
╭#┬col1┬col2┬col3┬col4┬───col5────┬───col6────╮
│0│   1│two │3.40│true│a month ago│8 hours ago│
╰─┴────┴────┴────┴────┴───────────┴───────────╯
```
or
```nushell
❯ [[col1 col2 col3 col4 col5 col6]; ["1" "two" "3.4" "true" "2023-08-10 14:07:17.922050800 -05:00" "2023-09-19"]] |
  into int col1 |
  into float col3 |
  into bool col4 |
  into datetime col5 col6
╭#┬col1┬col2┬col3┬col4┬───col5────┬───col6────╮
│0│   1│two │3.40│true│a month ago│8 hours ago│
╰─┴────┴────┴────┴────┴───────────┴───────────╯
```

### After
```nushell
❯ [[col1 col2 col3 col4 col5 col6]; ["1" "two" "3.4" "true" "2023-08-10 14:07:17.922050800 -05:00" "2023-09-19"]] | into value
╭#┬col1┬col2┬col3┬col4┬───col5────┬───col6────╮
│0│   1│two │3.40│true│a month ago│8 hours ago│
╰─┴────┴────┴────┴────┴───────────┴───────────╯
```

It's definitely not perfect. There are ways it will fail because on
regular expressions not working on all formats. My hope is that people
will pick this up and add more regular expressions and if there are
problems with the existing ones, change them. This is meant as a
"starter command" with easy entry for newcomers that are looking to chip
in and help out.

Also, some tests probably need to be added to ensure what we have now
doesn't break with updates.

# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->

# Tests + Formatting
<!--
Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used` to
check that you're using the standard code style
- `cargo test --workspace` to check that all tests pass (on Windows make
sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
- `cargo run -- -c "use std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library

> **Note**
> from `nushell` you can also use the `toolkit` as follows
> ```bash
> use toolkit.nu # or use an `env_change` hook to activate it
automatically
> toolkit check pr
> ```
-->

# After Submitting
<!-- If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
-->
2023-09-20 12:57:58 -05:00
Darren Schroeder
29e809ad77
allow values command to support LazyRecords (#10418)
# Description

This PR allows the `values` command to support lazy records.

closes https://github.com/nushell/nushell/issues/10417

### Before
```nushell
sys | values
Error: nu:🐚:only_supports_this_input_type

  × Input type not supported.
   ╭─[entry #1:1:1]
 1 │ sys | values
   · ─┬─   ───┬──
   ·  │       ╰── only record or table input data is supported
   ·  ╰── input type: record<host: record<name: string, os_version: string, long_os_version: string, kernel_version: string, hostname: string, uptime: duration, boot_time: string, sessions: list<any>>, cpu: table<name: string, brand: string, freq: int, cpu_usage: float, load_average: string, vendor_id: string>, disks: table<device: string, type: string, mount: string, total: filesize, free: filesize, removable: bool, kind: string>, mem: record<total: filesize, free: filesize, used: filesize, available: filesize, swap total: filesize, swap free: filesize, swap used: filesize>, temp: list<any>, net: table<name: string, sent: filesize, recv: filesize>>
   ╰────
```

### After
```nushell
❯ sys | values
╭─┬─────────────────╮
│0│{record 8 fields}│
│1│[table 16 rows]  │
│2│[table 1 row]    │
│3│{record 7 fields}│
│4│[list 0 items]   │
│5│[table 5 rows]   │
╰─┴─────────────────╯
```

# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->

# Tests + Formatting
<!--
Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used` to
check that you're using the standard code style
- `cargo test --workspace` to check that all tests pass (on Windows make
sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
- `cargo run -- -c "use std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library

> **Note**
> from `nushell` you can also use the `toolkit` as follows
> ```bash
> use toolkit.nu # or use an `env_change` hook to activate it
automatically
> toolkit check pr
> ```
-->

# After Submitting
<!-- If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
-->
2023-09-20 12:57:29 -05:00
Andreas Källberg
e1c6be0682
Fix tilde-expansion for multi-byte unicode chars (#10434)
<!--
if this PR closes one or more issues, you can automatically link the PR
with
them by using one of the [*linking
keywords*](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue#linking-a-pull-request-to-an-issue-using-a-keyword),
e.g.
- this PR should close #xxxx
- fixes #xxxx

you can also mention related issues, PRs or discussions!
-->

# Description
<!--
Thank you for improving Nushell. Please, check our [contributing
guide](../CONTRIBUTING.md) and talk to the core team before making major
changes.

Description of your pull request goes here. **Provide examples and/or
screenshots** if your changes affect the user experience.
-->

Fixes #10365

Use bytes() instead of chars() to get an actual index that can be used
with file.split_at(). utf8 is safe to process bytewise, since an ascii
character can never be mistaken for a non-ascii character


# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->

# Tests + Formatting

- [x] Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- [x] `cargo fmt --all -- --check` to check standard code formatting
(`cargo fmt --all` applies these changes)
- [x] `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used`
to check that you're using the standard code style
- [x] `cargo test --workspace` to check that all tests pass (on Windows
make sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
- [x] `cargo run -- -c "use std testing; testing run-tests --path
crates/nu-std"` to run the tests for the standard library
<!--
> **Note**
> from `nushell` you can also use the `toolkit` as follows
> ```bash
> use toolkit.nu # or use an `env_change` hook to activate it
automatically
> toolkit check pr
> ```
-->

# After Submitting
<!-- If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
-->
2023-09-21 04:04:28 +12:00
WindSoilder
bf40f035f6
don't overrite arg's type if it's annotated explicitly (#10424)
# Description
Fixes: #10410 

So the following script is possible:
```nushell
def a [b: any = null] { let b = ($b | default "default_b"); }
a "given_b"
```

## About the change
When parsing signature, and nushell meets something like `a: any`, it
force the parser to treat `a` as `any` type. This is what
`arg_explicit_type` means, it's only set when we goes into
`ParseMode::TypeMode`, and it will be reset to `false` if the token goes
to next argument.

so, when we have something like this: `def a [b: any = null] { $b }`,
the type of `$b` won't be overwritten.

But if we have something like this: `def a [b = null] { $b }`, the type
of `$b` is not annotated, so we make it to be `nothing`(which is the
type of null)
2023-09-21 03:58:29 +12:00