nushell/crates
132ikl 948965d42f
Immediately return error if detected as pipeline input or positional argument (#14874)
<!--
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.
-->

This PR returns error values while checking pipeline input types and
positional argument types. This should help return non-nested errors
earlier and prevent confusing errors.

The positional argument change is directly related to an example given
on Discord. Before this PR, this is the error shown:

```
Error: nu:🐚:cant_convert

  × Can't convert to record.
    ╭─[/home/rose/tmp/script.nu:23:5]
 22 │         let entry = $in
 23 │ ╭─▶     {
 24 │ │         name: $entry,
 25 │ │         details: {
 26 │ │           context: $context
 27 │ │         }
 28 │ ├─▶     }
    · ╰──── can't convert error to record
 29 │       }
    ╰────
```

After this PR, this is the error shown:

```
Error: nu:🐚:eval_block_with_input

  × Eval block failed with pipeline input
    ╭─[/home/rose/tmp/script.nu:23:5]
 22 │         let entry = $in
 23 │ ╭─▶     {
 24 │ │         name: $entry,
 25 │ │         details: {
 26 │ │           context: $context
 27 │ │         }
 28 │ ├─▶     }
    · ╰──── source value
 29 │       }
    ╰────

Error: nu:🐚:type_mismatch

  × Type mismatch.
   ╭─[/home/rose/tmp/much.nu:3:38]
 2 │   $in | each { |elem|
 3 │     print $elem.details.context.yaml.0
   ·                                      ┬
   ·                                      ╰── Can't access record values with a row index. Try specifying a column name instead
 4 │   } | each { |elem|
   ╰────
```

I'm not certain if the pipeline input error check actually can ever be
triggered, but it seems to be a good defensive error handling strategy
regardless. My addition of the `Value::Error` case in the first place
would suggest it can be, but after looking at it more closely the error
that caused me to add the case in the first place was actually unrelated
to input typechecking.

Additionally, this PR does not affect the handling of nested errors, so
something like:

```nushell
try { ... } catch {|e| $e | reject raw | to nuon }
```

works the same before and after this PR.

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

Errors values detected as arguments to commands or as pipeline input to
commands are immediately thrown, rather than passed to the command.

# 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 toolkit.nu; toolkit test stdlib"` 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
> ```
-->

- 🟢 `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.
-->
N/A
2025-01-30 06:47:22 -06:00
..
nu_plugin_custom_values Bump version to 0.101.1 (#14661) 2024-12-24 23:47:00 +01:00
nu_plugin_example Bump version to 0.101.1 (#14661) 2024-12-24 23:47:00 +01:00
nu_plugin_formats Bump version to 0.101.1 (#14661) 2024-12-24 23:47:00 +01:00
nu_plugin_gstat Bump git2 from 0.19.0 to 0.20.0 (#14776) 2025-01-08 13:53:02 +00:00
nu_plugin_inc Bump version to 0.101.1 (#14661) 2024-12-24 23:47:00 +01:00
nu_plugin_nu_example Bump version to 0.101.1 (#14661) 2024-12-24 23:47:00 +01:00
nu_plugin_polars Refactor I/O Errors (#14927) 2025-01-28 16:03:31 -06:00
nu_plugin_python Bump version to 0.101.1 (#14661) 2024-12-24 23:47:00 +01:00
nu_plugin_query Bump version to 0.101.1 (#14661) 2024-12-24 23:47:00 +01:00
nu_plugin_stress_internals Bump version to 0.101.1 (#14661) 2024-12-24 23:47:00 +01:00
nu-cli fix(cli): completion in nested blocks (#14856) 2025-01-30 01:15:38 -05:00
nu-cmd-base Bump version to 0.101.1 (#14661) 2024-12-24 23:47:00 +01:00
nu-cmd-extra Refactor I/O Errors (#14927) 2025-01-28 16:03:31 -06:00
nu-cmd-lang Bump shadow-rs from 0.37.0 to 0.38.0 (#14952) 2025-01-29 08:56:27 +08:00
nu-cmd-plugin Refactor I/O Errors (#14927) 2025-01-28 16:03:31 -06:00
nu-color-config Bump version to 0.101.1 (#14661) 2024-12-24 23:47:00 +01:00
nu-command Add --first/--last flags to move (#14961) 2025-01-30 06:32:26 -06:00
nu-derive-value Bump version to 0.101.1 (#14661) 2024-12-24 23:47:00 +01:00
nu-engine Immediately return error if detected as pipeline input or positional argument (#14874) 2025-01-30 06:47:22 -06:00
nu-explore Refactor I/O Errors (#14927) 2025-01-28 16:03:31 -06:00
nu-glob Create nu_glob::is_glob function (#14717) 2025-01-01 19:04:17 -05:00
nu-json Bump version to 0.101.1 (#14661) 2024-12-24 23:47:00 +01:00
nu-lsp fix(completion): DotNuCompletion now completes nu scripts in const $NU_LIB_DIRS (#14955) 2025-01-29 05:54:12 -06:00
nu-parser fix(parser): mixed side effects of different choices in parse_oneof (#14912) 2025-01-30 06:30:45 -06:00
nu-path Use ref-cast crate to remove some unsafe (#14897) 2025-01-26 12:43:45 -08:00
nu-plugin Refactor I/O Errors (#14927) 2025-01-28 16:03:31 -06:00
nu-plugin-core Replaced IoError::new calls that still had Span::unknown() (#14968) 2025-01-30 06:20:26 -06:00
nu-plugin-engine Refactor I/O Errors (#14927) 2025-01-28 16:03:31 -06:00
nu-plugin-protocol Bump version to 0.101.1 (#14661) 2024-12-24 23:47:00 +01:00
nu-plugin-test-support Refactor I/O Errors (#14927) 2025-01-28 16:03:31 -06:00
nu-pretty-hex Bump version to 0.101.1 (#14661) 2024-12-24 23:47:00 +01:00
nu-protocol Fix cargo doc Warnings (#14948) 2025-01-28 18:09:53 -06:00
nu-std Rename std/core to std/prelude (#14962) 2025-01-29 11:16:12 -05:00
nu-system Replace std::time::Instant with web_time::Instant (#14668) 2024-12-25 16:50:02 +08:00
nu-table Fix #14842 (#14885) 2025-01-22 06:49:25 -06:00
nu-term-grid Bump version to 0.101.1 (#14661) 2024-12-24 23:47:00 +01:00
nu-test-support Improve and fix filesize formatting/display (#14397) 2025-01-22 22:24:51 -08:00
nu-utils Improve and fix filesize formatting/display (#14397) 2025-01-22 22:24:51 -08:00
nuon fix nuon conversions of range values (#14687) 2025-01-07 21:29:39 +01:00
README.md Remove old nushell/merge engine-q 2022-02-07 14:54:06 -05:00

Nushell core libraries and plugins

These sub-crates form both the foundation for Nu and a set of plugins which extend Nu with additional functionality.

Foundational libraries are split into two kinds of crates:

  • Core crates - those crates that work together to build the Nushell language engine
  • Support crates - a set of crates that support the engine with additional features like JSON support, ANSI support, and more.

Plugins are likewise also split into two types:

  • Core plugins - plugins that provide part of the default experience of Nu, including access to the system properties, processes, and web-connectivity features.
  • Extra plugins - these plugins run a wide range of different capabilities like working with different file types, charting, viewing binary data, and more.