nushell/crates/nu-command
JT eaec480f42
Improve empty pipelines (#7383)
# Description

This fix changes pipelines to allow them to actually be empty. Mapping
over empty pipelines gives empty pipelines. Empty pipelines immediately
return `None` when iterated.

This removes a some of where `Span::new(0, 0)` was coming from, though
there are other cases where we still use it.

# User-Facing Changes

None

# 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

# 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.
2022-12-08 07:31:57 +13:00
..
assets refactor html module (#5246) 2022-04-20 08:50:14 -05:00
proptest-regressions/format_conversions add tests, deal with pipes, newlines, tabs for to nuon (#6391) 2022-09-01 14:08:19 +02:00
src Improve empty pipelines (#7383) 2022-12-08 07:31:57 +13:00
tests Improve empty pipelines (#7383) 2022-12-08 07:31:57 +13:00
build.rs Fix panic when building without git (#6289) 2022-08-10 10:31:12 -05:00
Cargo.toml bump to dev build v0.72.2 (#7360) 2022-12-05 14:18:06 -06:00
LICENSE Include license text in all crates (#5094) 2022-04-08 10:47:13 +02:00