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Make get hole errors and cell path hole errors identical (improvement on #7002) (#7647)

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# 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.
This commit is contained in:
Leon
2023-01-03 08:45:43 +10:00
committed by GitHub
parent 614bc2a943
commit 65d0b5b9d9
22 changed files with 326 additions and 222 deletions
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99
crates/nu-cli/src/repl.rs
View File

@ -734,60 +734,63 @@ pub fn eval_hook(
}
}
Value::Record { .. } => {
let do_run_hook =
if let Ok(condition) = value.clone().follow_cell_path(&[condition_path], false) {
match condition {
Value::Block {
val: block_id,
span: block_span,
..
}
| Value::Closure {
val: block_id,
span: block_span,
..
} => {
match run_hook_block(
engine_state,
stack,
block_id,
None,
arguments.clone(),
block_span,
) {
Ok(pipeline_data) => {
if let PipelineData::Value(Value::Bool { val, .. }, ..) =
pipeline_data
{
val
} else {
return Err(ShellError::UnsupportedConfigValue(
"boolean output".to_string(),
"other PipelineData variant".to_string(),
block_span,
));
}
}
Err(err) => {
return Err(err);
let do_run_hook = if let Ok(condition) =
value
.clone()
.follow_cell_path(&[condition_path], false, false)
{
match condition {
Value::Block {
val: block_id,
span: block_span,
..
}
| Value::Closure {
val: block_id,
span: block_span,
..
} => {
match run_hook_block(
engine_state,
stack,
block_id,
None,
arguments.clone(),
block_span,
) {
Ok(pipeline_data) => {
if let PipelineData::Value(Value::Bool { val, .. }, ..) =
pipeline_data
{
val
} else {
return Err(ShellError::UnsupportedConfigValue(
"boolean output".to_string(),
"other PipelineData variant".to_string(),
block_span,
));
}
}
}
other => {
return Err(ShellError::UnsupportedConfigValue(
"block".to_string(),
format!("{}", other.get_type()),
other.span()?,
));
Err(err) => {
return Err(err);
}
}
}
} else {
// always run the hook
true
};
other => {
return Err(ShellError::UnsupportedConfigValue(
"block".to_string(),
format!("{}", other.get_type()),
other.span()?,
));
}
}
} else {
// always run the hook
true
};
if do_run_hook {
match value.clone().follow_cell_path(&[code_path], false)? {
match value.clone().follow_cell_path(&[code_path], false, false)? {
Value::String {
val,
span: source_span,