nushell/crates/nu-parser/src
Leon 65d0b5b9d9
Make get hole errors and cell path hole errors identical (improvement on #7002) (#7647)
# Description

This closes #7498, as well as fixes an issue reported in
https://github.com/nushell/nushell/pull/7002#issuecomment-1368340773

BEFORE:
```
〉[{foo: 'bar'} {}] | get foo
Error: nu:🐚:column_not_found (link)

  × Cannot find column
   ╭─[entry #5:1:1]
 1 │ [{foo: 'bar'} {}] | get foo
   · ────────┬────────   ─┬─
   ·         │            ╰── value originates here
   ·         ╰── cannot find column 'Empty cell'
   ╰────

〉[{foo: 'bar'} {}].foo
╭───┬─────╮
│ 0 │ bar │
│ 1 │     │
╰───┴─────╯
```
AFTER:
```
〉[{foo: 'bar'} {}] | get foo
Error: nu:🐚:column_not_found (link)

  × Cannot find column
   ╭─[entry #1:1:1]
 1 │ [{foo: 'bar'} {}] | get foo
   ·               ─┬        ─┬─
   ·                │         ╰── cannot find column 'foo'
   ·                ╰── value originates here
   ╰────

〉[{foo: 'bar'} {}].foo
Error: nu:🐚:column_not_found (link)

  × Cannot find column
   ╭─[entry #3:1:1]
 1 │ [{foo: 'bar'} {}].foo
   ·               ─┬  ─┬─
   ·                │   ╰── cannot find column 'foo'
   ·                ╰── value originates here       
   ╰────
```

EDIT: This also changes the semantics of `get`/`select` `-i` somewhat.
I've decided to leave it like this because it works more intuitively
with `default` and `compact`.
BEFORE:
```
〉[{a:1} {b:2} {a:3}] | select -i foo | to nuon
null
```
AFTER:
```
〉[{a:1} {b:2} {a:3}] | select -i foo | to nuon
[[foo]; [null], [null], [null]]
```

# User-Facing Changes

See above. EDIT: the issue with holes in cases like ` [{foo: 'bar'}
{}].foo.0` versus ` [{foo: 'bar'} {}].0.foo` has been resolved.

# 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.
2023-01-02 14:45:43 -08:00
..
deparse.rs fix arg parse (#5754) 2022-06-11 20:52:31 +12:00
errors.rs def: make various punctuation misuses into errors (#7624) 2022-12-31 13:18:53 +02:00
eval.rs Make get hole errors and cell path hole errors identical (improvement on #7002) (#7647) 2023-01-02 14:45:43 -08:00
flatten.rs add missing shapes to default_config (#7472) 2022-12-14 07:11:17 -06:00
known_external.rs Add "fall-through" signatures (#7527) 2022-12-22 00:33:26 +02:00
lex.rs Revert "Pipeline operators: && and ||" (#7452) 2022-12-13 16:36:13 +13:00
lib.rs Small parser refactors (#7568) 2022-12-22 13:41:44 +02:00
lite_parser.rs Small parser refactors (#7568) 2022-12-22 13:41:44 +02:00
parse_keywords.rs Expand Nushell's help system (#7611) 2022-12-30 17:44:37 +02:00
parser.rs early return for parsing closure and block with interchanged shape (#7618) 2023-01-01 12:26:51 +02:00
type_check.rs allow tables in ++ operator (#7051) 2022-12-01 00:21:59 +01:00