# Description
This change fixes the bug associated with an incorrect span in
`type_mismatch` error message as described in #7288
The `span` argument in the method `into_value` was not being used to
convert a `PipelineData::Value` type so when called in
[eval_expression](https://github.com/nushell/nushell/blob/main/crates/nu-engine/src/eval.rs#L514-L515),
the original expression's span was not being used to overwrite the
result of `eval_subexpression`.
# User-Facing Changes
Using the example described in the issue, the whole bracketed
subexpression is correctly underlined.
Behavior before change:
```
let val = 10
($val | into string) + $val
Error: nu:🐚:type_mismatch
× Type mismatch during operation.
╭─[entry #2:1:1]
1 │ ($val | into string) + $val
· ─────┬───── ┬ ──┬─
· │ │ ╰── int
· │ ╰── type mismatch for operator
· ╰── string
╰────
```
Behavior after change:
```
let val = 10
($val | into string) + $val
Error: nu:🐚:type_mismatch
× Type mismatch during operation.
╭─[entry #2:1:1]
1 │ ($val | into string) + $val
· ──────────┬───────── ┬ ──┬─
· │ │ ╰── int
· │ ╰── type mismatch for operator
· ╰── string
╰────
```
# 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.
