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7 changed files with 61 additions and 56 deletions
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@ -2,6 +2,7 @@ use crate::{
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element::{Element, IntoElement, Layout},
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layout_context::LayoutContext,
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paint_context::PaintContext,
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ArcCow,
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};
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use anyhow::Result;
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use gpui::{geometry::Size, text_layout::LineLayout, LayoutId};
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@ -93,55 +94,3 @@ pub struct TextLayout {
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line_layout: Arc<LineLayout>,
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line_height: f32,
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}
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pub enum ArcCow<'a, T: ?Sized> {
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Borrowed(&'a T),
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Owned(Arc<T>),
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}
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impl<'a, T: ?Sized> Clone for ArcCow<'a, T> {
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fn clone(&self) -> Self {
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match self {
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Self::Borrowed(borrowed) => Self::Borrowed(borrowed),
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Self::Owned(owned) => Self::Owned(owned.clone()),
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}
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}
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}
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impl<'a, T: ?Sized> From<&'a T> for ArcCow<'a, T> {
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fn from(s: &'a T) -> Self {
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Self::Borrowed(s)
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}
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}
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impl<T> From<Arc<T>> for ArcCow<'_, T> {
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fn from(s: Arc<T>) -> Self {
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Self::Owned(s)
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}
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}
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impl From<String> for ArcCow<'_, str> {
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fn from(value: String) -> Self {
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Self::Owned(value.into())
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}
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}
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impl<T: ?Sized> std::ops::Deref for ArcCow<'_, T> {
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type Target = T;
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fn deref(&self) -> &Self::Target {
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match self {
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ArcCow::Borrowed(s) => s,
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ArcCow::Owned(s) => s.as_ref(),
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}
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}
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}
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impl<T: ?Sized> AsRef<T> for ArcCow<'_, T> {
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fn as_ref(&self) -> &T {
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match self {
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ArcCow::Borrowed(borrowed) => borrowed,
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ArcCow::Owned(owned) => owned.as_ref(),
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}
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}
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}
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