The core change here is the following:
```rust
fn write_to_pty(&self, input: impl Into<Vec<u8>>);
// into
fn write_to_pty(&self, input: impl Into<Cow<'static, [u8]>>);
```
This matches the trait bounds that's used by the Alacritty crate. We are
now allowed to effectively pass `&'static str` instead of always needing
a `String`.
The main benefit comes from making the `to_esc_str` function return a
`Cow<'static, str>` instead of `String`. We save an allocation in the
following instances:
- When the user presses any special key that isn't alphanumerical (in
the terminal)
- When the uses presses any key while a modifier is active (in the
terminal)
- When focusing/un-focusing the terminal
- When completing or undoing a terminal transaction
- When starting a terminal assist
This basically saves us an allocation on **every key** press in the
terminal.
NOTE: This same optimization can be done for **nearly all** keypresses
in the entirety of Zed by changing the signature of the `Keystroke`
struct in gpui. If the Zed team is interested in a PR for it, let me
know.
Release Notes:
- N/A
8ab7d44d51