ZIm/crates/rope/src/unclipped.rs
Max Brunsfeld d2c55cbe3d
Rework diff rendering to allow putting the cursor into deleted text, soft-wrapping and scrolling deleted text correctly (#22994)
Closes #12553

* [x] Fix `diff_hunk_before`
* [x] Fix failure to show deleted text when expanding hunk w/ cursor on
second line of the hunk
* [x] Failure to expand diff hunk below the cursor.
* [x] Delete the whole file, and expand the diff. Backspace over the
deleted hunk, panic!
* [x] Go-to-line now counts the diff hunks, but it should not
* [x] backspace at the beginning of a deleted hunk deletes too much text
* [x] Indent guides are rendered incorrectly 
* [ ] Fix randomized multi buffer tests

Maybe:
* [ ] Buffer search should include deleted text (in vim mode it turns
out I use `/x` all the time to jump to the next x I can see).
* [ ] vim: should refuse to switch into insert mode if selection is
fully within a diff.
* [ ] vim `o` command when cursor is on last line of deleted hunk.
* [ ] vim `shift-o` on first line of deleted hunk moves cursor but
doesn't insert line
* [x] `enter` at end of diff hunk inserts a new line but doesn't move
cursor
* [x] (`shift-enter` at start of diff hunk does nothing)
* [ ] Inserting a line just before an expanded hunk collapses it

Release Notes:


- Improved diff rendering, allowing you to navigate with your cursor
inside of deleted text in diff hunks.

---------

Co-authored-by: Conrad <conrad@zed.dev>
Co-authored-by: Cole <cole@zed.dev>
Co-authored-by: Mikayla <mikayla@zed.dev>
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Co-authored-by: Michael <michael@zed.dev>
Co-authored-by: Agus <agus@zed.dev>
Co-authored-by: João <joao@zed.dev>
2025-01-24 14:18:22 -07:00

51 lines
1.2 KiB
Rust

use crate::ChunkSummary;
use std::ops::{Add, AddAssign, Sub, SubAssign};
#[derive(Debug, Default, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct Unclipped<T>(pub T);
impl<T> From<T> for Unclipped<T> {
fn from(value: T) -> Self {
Unclipped(value)
}
}
impl<'a, T: sum_tree::Dimension<'a, ChunkSummary>> sum_tree::Dimension<'a, ChunkSummary>
for Unclipped<T>
{
fn zero(_: &()) -> Self {
Self(T::zero(&()))
}
fn add_summary(&mut self, summary: &'a ChunkSummary, _: &()) {
self.0.add_summary(summary, &());
}
}
impl<T: Add<T, Output = T>> Add<Unclipped<T>> for Unclipped<T> {
type Output = Unclipped<T>;
fn add(self, rhs: Unclipped<T>) -> Self::Output {
Unclipped(self.0 + rhs.0)
}
}
impl<T: Sub<T, Output = T>> Sub<Unclipped<T>> for Unclipped<T> {
type Output = Unclipped<T>;
fn sub(self, rhs: Unclipped<T>) -> Self::Output {
Unclipped(self.0 - rhs.0)
}
}
impl<T: AddAssign<T>> AddAssign<Unclipped<T>> for Unclipped<T> {
fn add_assign(&mut self, rhs: Unclipped<T>) {
self.0 += rhs.0;
}
}
impl<T: SubAssign<T>> SubAssign<Unclipped<T>> for Unclipped<T> {
fn sub_assign(&mut self, rhs: Unclipped<T>) {
self.0 -= rhs.0;
}
}