nushell/crates/nu-protocol/src
JT 7ec5f2f2eb
Add or-patterns, fix var binding scope (#8633)
# Description

Adds `|` patterns to `match`, allowing you to try multiple patterns for
the same case.

Example:

```
match {b: 1} { {a: $b} | {b: $b} => { print $b } }
```

Variables that don't bind are set to `$nothing` so that they can be
later checked.

This PR also:
fixes #8631 

Creates a set of integration tests for pattern matching also

# User-Facing Changes

Adds `|` to `match`. Fixes variable binding scope. 
# 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 -A
clippy::needless_collect` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass

> **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.
2023-03-27 11:31:57 +13:00
..
ast Add or-patterns, fix var binding scope (#8633) 2023-03-27 11:31:57 +13:00
engine Add or-patterns, fix var binding scope (#8633) 2023-03-27 11:31:57 +13:00
value Change comparison operators to allow nulls (#8617) 2023-03-26 12:10:09 +13:00
alias.rs Document and critically review ShellError variants - Ep. 3 (#8340) 2023-03-06 18:33:09 +01:00
cli_error.rs Clippy fix for Rust 1.63 (#6299) 2022-08-11 11:54:54 -05:00
config.rs feat: add a command_not_found hook (#8314) 2023-03-20 17:05:22 +13:00
example.rs remove unused imports: Deserialize, Serialize compiler warning for nu-protocol/src/example.rs (#8514) 2023-03-18 11:45:12 -07:00
exportable.rs Removes export env command (#6468) 2022-09-25 19:52:43 +03:00
id.rs Overlays (#5375) 2022-05-08 07:39:22 +12:00
lev_distance.rs Reduce again the number of match calls (#7815) 2023-01-24 12:23:42 +01:00
lib.rs Re-implement aliases (#8123) 2023-02-27 20:44:05 +13:00
module.rs Allow main command to define top-level module command (#7764) 2023-01-22 21:34:15 +02:00
pipeline_data.rs Remove autoprinting of loop block values (#8618) 2023-03-26 13:23:54 +13:00
plugin_signature.rs Make plugin commands support examples. (#7984) 2023-02-08 16:14:18 -06:00
shell_error.rs Make HTTP requests cancellable when trying to connect (#8591) 2023-03-24 12:45:55 -07:00
signature.rs view span & view files commands (#7989) 2023-02-09 11:35:23 -06:00
span.rs Use variable names directly in the format strings (#7906) 2023-01-29 19:37:54 -06:00
syntax_shape.rs Add pattern matching (#8590) 2023-03-24 14:52:01 +13:00
ty.rs Add pattern matching (#8590) 2023-03-24 14:52:01 +13:00
util.rs move BufferedReader out of nu-command (#7697) 2023-01-06 15:22:17 -08:00
variable.rs Limited mutable variables (#7089) 2022-11-11 19:51:08 +13:00