Checkpoint

This commit is contained in:
Nathan Sobo 2023-09-05 12:50:07 -06:00
parent 9ec7569e09
commit e08c0fc4ce
7 changed files with 61 additions and 56 deletions

View file

@ -2,6 +2,7 @@ use crate::{
element::{Element, IntoElement, Layout},
layout_context::LayoutContext,
paint_context::PaintContext,
ArcCow,
};
use anyhow::Result;
use gpui::{geometry::Size, text_layout::LineLayout, LayoutId};
@ -93,55 +94,3 @@ pub struct TextLayout {
line_layout: Arc<LineLayout>,
line_height: f32,
}
pub enum ArcCow<'a, T: ?Sized> {
Borrowed(&'a T),
Owned(Arc<T>),
}
impl<'a, T: ?Sized> Clone for ArcCow<'a, T> {
fn clone(&self) -> Self {
match self {
Self::Borrowed(borrowed) => Self::Borrowed(borrowed),
Self::Owned(owned) => Self::Owned(owned.clone()),
}
}
}
impl<'a, T: ?Sized> From<&'a T> for ArcCow<'a, T> {
fn from(s: &'a T) -> Self {
Self::Borrowed(s)
}
}
impl<T> From<Arc<T>> for ArcCow<'_, T> {
fn from(s: Arc<T>) -> Self {
Self::Owned(s)
}
}
impl From<String> for ArcCow<'_, str> {
fn from(value: String) -> Self {
Self::Owned(value.into())
}
}
impl<T: ?Sized> std::ops::Deref for ArcCow<'_, T> {
type Target = T;
fn deref(&self) -> &Self::Target {
match self {
ArcCow::Borrowed(s) => s,
ArcCow::Owned(s) => s.as_ref(),
}
}
}
impl<T: ?Sized> AsRef<T> for ArcCow<'_, T> {
fn as_ref(&self) -> &T {
match self {
ArcCow::Borrowed(borrowed) => borrowed,
ArcCow::Owned(owned) => owned.as_ref(),
}
}
}