# Description
While working on something else, I noticed that
`Value::follow_cell_path` receives `self`.
While it would be ideal for the signature to be `(&'a self, cell_path)
-> &'a Value`, that's not possible because:
1. Selecting a row from a list and field from a record can be done with
a reference but selecting a column from a table requires creating a new
list.
2. `Value::Custom` returns new `Value`s when indexed.
So the signature becomes `(&'a self, cell_path) -> Cow<'a, Value>`.
Another complication that arises is, once a new `Value` is created, and
it is further indexed, the `current` variable
1. can't be `&'a Value`, as the lifetime requirement means it can't
refer to local variables
2. _shouldn't_ be `Cow<'a, Value>`, as once it becomes an owned value,
it can't be borrowed ever again, as `current` is derived from its
previous value in further iterations. So once it's owned, it can't be
indexed by reference, leading to more clones
We need `current` to have _two_ possible lifetimes
1. `'out`: references derived from `&self`
2. `'local`: references derived from an owned value stored in a local
variable
```rust
enum MultiLife<'out, 'local, T>
where
'out: 'local,
T: ?Sized,
{
Out(&'out T),
Local(&'local T),
}
```
With `current: MultiLife<'out, '_, Value>`, we can traverse values with
minimal clones, and we can transform it to `Cow<'out, Value>` easily
(`MultiLife::Out -> Cow::Borrowed, MultiLife::Local -> Cow::Owned`) to
return it
# User-Facing Changes
# Tests + Formatting
# After Submitting
---------
Co-authored-by: Bahex <17417311+Bahex@users.noreply.github.com>
# Description
Now, with PWD correctly set in #15470 , identifiers in
`use/hide/overlay` commands can be identified using a more robust
method, i.e. module_id from `parser_info`.
# User-Facing Changes
bug fix
# Tests + Formatting
+1 (fails without this PR)
# After Submitting
#15499 reminds me of the discrepancies between lsp hover docs and
`--help` outputs.
# Description
# User-Facing Changes
Before:
<img width="610" alt="image"
src="https://github.com/user-attachments/assets/f73f7ace-5c1b-4380-9921-fb4783bdb187"
/>
After:
<img width="610" alt="image"
src="https://github.com/user-attachments/assets/96de3ffe-e37b-41b1-88bb-123eeb72ced2"
/>
Output of `if -h` as a reference:
```
Usage:
> if <cond> <then_block> (else <else_expression>)
Flags:
-h, --help: Display the help message for this command
Parameters:
cond <variable>: Condition to check.
then_block <block>: Block to run if check succeeds.
"else" + <one_of(block, expression)>: Expression or block to run when the condition is false. (optional)
```
# Tests + Formatting
Refined
# After Submitting
# Description
Some editors like neovim will provide "workspace root" as PWD, which can
mess up file completion results.
# User-Facing Changes
bug fix
# Tests + Formatting
adjusted
# After Submitting
Fixes messed ansi escapes in hover text (manpage):
<img width="392" alt="image"
src="https://github.com/user-attachments/assets/37c16520-d499-4079-93d9-0eccd1cfa8de"
/>
# Description
That bug is introduced in #15115.
Also refactored the hover related code to a separate file, just like
other features.
# User-Facing Changes
# Tests + Formatting
# After Submitting
