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Remove ReadView and UpdateView traits

Browse Source 
Co-Authored-By: Nathan Sobo <nathan@zed.dev>
This commit is contained in:
Antonio Scandurra 2023-04-24 17:36:14 +02:00
parent a6115d9330
commit c165fb9be5
12 changed files with 160 additions and 183 deletions
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6
crates/editor/src/editor.rs
View File

@ -2715,7 +2715,7 @@ impl Editor {
title: String,
mut cx: AsyncAppContext,
) -> Result<()> {
let replica_id = this.read_with(&cx, |this, cx| this.replica_id(cx));
let replica_id = this.read_with(&cx, |this, cx| this.replica_id(cx))?;
let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
entries.sort_unstable_by_key(|(buffer, _)| {
@ -2732,7 +2732,7 @@ impl Editor {
.buffer()
.read(cx)
.excerpt_containing(editor.selections.newest_anchor().head(), cx)
});
})?;
if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
if excerpted_buffer == *buffer {
let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
@ -5814,7 +5814,7 @@ impl Editor {
buffer_highlights
.next()
.map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
})
})?
};
if let Some(rename_range) = rename_range {
let rename_buffer_range = rename_range.to_offset(&snapshot);

12
crates/editor/src/editor_tests.rs
View File

@ -5673,8 +5673,8 @@ async fn test_following_with_multiple_excerpts(cx: &mut gpui::TestAppContext) {
.await
.unwrap();
assert_eq!(
follower_1.read_with(cx, Editor::text),
leader.read_with(cx, Editor::text)
follower_1.read_with(cx, |editor, cx| editor.text(cx)),
leader.read_with(cx, |editor, cx| editor.text(cx))
);
update_message.borrow_mut().take();
@ -5697,8 +5697,8 @@ async fn test_following_with_multiple_excerpts(cx: &mut gpui::TestAppContext) {
.await
.unwrap();
assert_eq!(
follower_2.read_with(cx, Editor::text),
leader.read_with(cx, Editor::text)
follower_2.read_with(cx, |editor, cx| editor.text(cx)),
leader.read_with(cx, |editor, cx| editor.text(cx))
);
// Remove some excerpts.
@ -5725,8 +5725,8 @@ async fn test_following_with_multiple_excerpts(cx: &mut gpui::TestAppContext) {
.unwrap();
update_message.borrow_mut().take();
assert_eq!(
follower_1.read_with(cx, Editor::text),
leader.read_with(cx, Editor::text)
follower_1.read_with(cx, |editor, cx| editor.text(cx)),
leader.read_with(cx, |editor, cx| editor.text(cx))
);
}

2
crates/editor/src/items.rs
View File

@ -78,7 +78,7 @@ impl FollowableItem for Editor {
== editor.read(cx).buffer.read(cx).as_singleton().as_ref();
ids_match || singleton_buffer_matches
})
});
})?;
let editor = if let Some(editor) = editor {
editor

2
crates/editor/src/test/editor_test_context.rs
View File

@ -57,7 +57,7 @@ impl<'a> EditorTestContext<'a> {
pub fn editor<F, T>(&self, read: F) -> T
where
F: FnOnce(&Editor, &AppContext) -> T,
F: FnOnce(&Editor, &ViewContext<Editor>) -> T,
{
self.editor.read_with(self.cx, read)
}

140
crates/gpui/src/app.rs
View File

@ -126,26 +126,19 @@ pub trait BorrowAppContext {
fn update<T, F: FnOnce(&mut AppContext) -> T>(&mut self, f: F) -> T;
}
pub trait ReadViewWith {
fn read_view_with<V, T>(
pub trait BorrowWindowContext {
type ReturnValue<T>;
fn read_with<T, F: FnOnce(&WindowContext) -> T>(
&self,
handle: &ViewHandle<V>,
read: &mut dyn FnMut(&V, &AppContext) -> T,
) -> T
where
V: View;
}
pub trait UpdateView {
type Output<S>;
fn update_view<T, S>(
window_id: usize,
f: F,
) -> Self::ReturnValue<T>;
fn update<T, F: FnOnce(&mut WindowContext) -> T>(
&mut self,
handle: &ViewHandle<T>,
update: &mut dyn FnMut(&mut T, &mut ViewContext<T>) -> S,
) -> Self::Output<S>
where
T: View;
window_id: usize,
f: F,
) -> Self::ReturnValue<T>;
}
#[derive(Clone)]
@ -388,36 +381,25 @@ impl BorrowAppContext for AsyncAppContext {
}
}
impl UpdateView for AsyncAppContext {
type Output<S> = Result<S>;
impl BorrowWindowContext for AsyncAppContext {
type ReturnValue<T> = Result<T>;
fn update_view<T, S>(
&mut self,
handle: &ViewHandle<T>,
update: &mut dyn FnMut(&mut T, &mut ViewContext<T>) -> S,
) -> Result<S>
where
T: View,
{
fn read_with<T, F: FnOnce(&WindowContext) -> T>(&self, window_id: usize, f: F) -> Result<T> {
self.0
.borrow_mut()
.update_window(handle.window_id, |cx| cx.update_view(handle, update))
.borrow()
.read_window(window_id, f)
.ok_or_else(|| anyhow!("window was closed"))
}
}
impl ReadViewWith for AsyncAppContext {
fn read_view_with<V, T>(
&self,
handle: &ViewHandle<V>,
read: &mut dyn FnMut(&V, &AppContext) -> T,
) -> T
where
V: View,
{
let cx = self.0.borrow();
let cx = &*cx;
read(handle.read(cx), cx)
fn update<T, F: FnOnce(&mut WindowContext) -> T>(
&mut self,
window_id: usize,
f: F,
) -> Result<T> {
self.0
.borrow_mut()
.update_window(window_id, f)
.ok_or_else(|| anyhow!("window was closed"))
}
}
@ -3349,26 +3331,23 @@ impl<'a, 'b, V: View> ViewContext<'a, 'b, V> {
impl<V> BorrowAppContext for ViewContext<'_, '_, V> {
fn read_with<T, F: FnOnce(&AppContext) -> T>(&self, f: F) -> T {
self.window_context.read_with(f)
BorrowAppContext::read_with(&*self.window_context, f)
}
fn update<T, F: FnOnce(&mut AppContext) -> T>(&mut self, f: F) -> T {
self.window_context.update(f)
BorrowAppContext::update(&mut *self.window_context, f)
}
}
impl<V: View> UpdateView for ViewContext<'_, '_, V> {
type Output<S> = S;
impl<V> BorrowWindowContext for ViewContext<'_, '_, V> {
type ReturnValue<T> = T;
fn update_view<T, S>(
&mut self,
handle: &ViewHandle<T>,
update: &mut dyn FnMut(&mut T, &mut ViewContext<T>) -> S,
) -> S
where
T: View,
{
self.window_context.update_view(handle, update)
fn read_with<T, F: FnOnce(&WindowContext) -> T>(&self, window_id: usize, f: F) -> T {
BorrowWindowContext::read_with(&*self.window_context, window_id, f)
}
fn update<T, F: FnOnce(&mut WindowContext) -> T>(&mut self, window_id: usize, f: F) -> T {
BorrowWindowContext::update(&mut *self.window_context, window_id, f)
}
}
@ -3406,26 +3385,23 @@ impl<V: View> DerefMut for EventContext<'_, '_, '_, V> {
impl<V: View> BorrowAppContext for EventContext<'_, '_, '_, V> {
fn read_with<T, F: FnOnce(&AppContext) -> T>(&self, f: F) -> T {
self.view_context.read_with(f)
BorrowAppContext::read_with(&*self.view_context, f)
}
fn update<T, F: FnOnce(&mut AppContext) -> T>(&mut self, f: F) -> T {
self.view_context.update(f)
BorrowAppContext::update(&mut *self.view_context, f)
}
}
impl<V: View> UpdateView for EventContext<'_, '_, '_, V> {
type Output<S> = S;
impl<V: View> BorrowWindowContext for EventContext<'_, '_, '_, V> {
type ReturnValue<T> = T;
fn update_view<T, S>(
&mut self,
handle: &ViewHandle<T>,
update: &mut dyn FnMut(&mut T, &mut ViewContext<T>) -> S,
) -> S
where
T: View,
{
self.view_context.update_view(handle, update)
fn read_with<T, F: FnOnce(&WindowContext) -> T>(&self, window_id: usize, f: F) -> T {
BorrowWindowContext::read_with(&*self.view_context, window_id, f)
}
fn update<T, F: FnOnce(&mut WindowContext) -> T>(&mut self, window_id: usize, f: F) -> T {
BorrowWindowContext::update(&mut *self.view_context, window_id, f)
}
}
@ -3756,27 +3732,29 @@ impl<T: View> ViewHandle<T> {
cx.read_view(self)
}
pub fn read_with<C, F, S>(&self, cx: &C, read: F) -> S
pub fn read_with<C, F, S>(&self, cx: &C, read: F) -> C::ReturnValue<S>
where
C: ReadViewWith,
F: FnOnce(&T, &AppContext) -> S,
C: BorrowWindowContext,
F: FnOnce(&T, &ViewContext<T>) -> S,
{
let mut read = Some(read);
cx.read_view_with(self, &mut |view, cx| {
let read = read.take().unwrap();
read(view, cx)
cx.read_with(self.window_id, |cx| {
let cx = ViewContext::immutable(cx, self.view_id);
read(cx.read_view(self), &cx)
})
}
pub fn update<C, F, S>(&self, cx: &mut C, update: F) -> C::Output<S>
pub fn update<C, F, S>(&self, cx: &mut C, update: F) -> C::ReturnValue<S>
where
C: UpdateView,
C: BorrowWindowContext,
F: FnOnce(&mut T, &mut ViewContext<T>) -> S,
{
let mut update = Some(update);
cx.update_view(self, &mut |view, cx| {
let update = update.take().unwrap();
update(view, cx)
cx.update(self.window_id, |cx| {
cx.update_view(self, &mut |view, cx| {
let update = update.take().unwrap();
update(view, cx)
})
})
}

71
crates/gpui/src/app/test_app_context.rs
View File

@ -1,3 +1,18 @@
use crate::{
executor,
geometry::vector::Vector2F,
keymap_matcher::Keystroke,
platform,
platform::{Event, InputHandler, KeyDownEvent, Platform},
Action, AnyViewHandle, AppContext, BorrowAppContext, BorrowWindowContext, Entity, FontCache,
Handle, ModelContext, ModelHandle, Subscription, Task, View, ViewContext, ViewHandle,
WeakHandle, WindowContext,
};
use collections::BTreeMap;
use futures::Future;
use itertools::Itertools;
use parking_lot::{Mutex, RwLock};
use smol::stream::StreamExt;
use std::{
any::Any,
cell::RefCell,
@ -11,23 +26,6 @@ use std::{
time::Duration,
};
use futures::Future;
use itertools::Itertools;
use parking_lot::{Mutex, RwLock};
use smol::stream::StreamExt;
use crate::{
executor,
geometry::vector::Vector2F,
keymap_matcher::Keystroke,
platform,
platform::{Event, InputHandler, KeyDownEvent, Platform},
Action, AnyViewHandle, AppContext, BorrowAppContext, Entity, FontCache, Handle, ModelContext,
ModelHandle, ReadViewWith, Subscription, Task, UpdateView, View, ViewContext, ViewHandle,
WeakHandle, WindowContext,
};
use collections::BTreeMap;
use super::{
ref_counts::LeakDetector, window_input_handler::WindowInputHandler, AsyncAppContext, RefCounts,
};
@ -391,36 +389,21 @@ impl BorrowAppContext for TestAppContext {
}
}
impl UpdateView for TestAppContext {
type Output<S> = S;
impl BorrowWindowContext for TestAppContext {
type ReturnValue<T> = T;
fn update_view<T, S>(
&mut self,
handle: &ViewHandle<T>,
update: &mut dyn FnMut(&mut T, &mut ViewContext<T>) -> S,
) -> S
where
T: View,
{
fn read_with<T, F: FnOnce(&WindowContext) -> T>(&self, window_id: usize, f: F) -> T {
self.cx
.borrow()
.read_window(window_id, f)
.expect("window was closed")
}
fn update<T, F: FnOnce(&mut WindowContext) -> T>(&mut self, window_id: usize, f: F) -> T {
self.cx
.borrow_mut()
.update_window(handle.window_id, |cx| cx.update_view(handle, update))
.unwrap()
}
}
impl ReadViewWith for TestAppContext {
fn read_view_with<V, T>(
&self,
handle: &ViewHandle<V>,
read: &mut dyn FnMut(&V, &AppContext) -> T,
) -> T
where
V: View,
{
let cx = self.cx.borrow();
let cx = &*cx;
read(handle.read(cx), cx)
.update_window(window_id, f)
.expect("window was closed")
}
}

62
crates/gpui/src/app/window.rs
View File

@ -13,9 +13,9 @@ use crate::{
},
text_layout::TextLayoutCache,
util::post_inc,
Action, AnyView, AnyViewHandle, AppContext, BorrowAppContext, Effect, Element, Entity, Handle,
MouseRegion, MouseRegionId, ParentId, SceneBuilder, Subscription, UpdateView, View,
ViewContext, ViewHandle, WindowInvalidation,
Action, AnyView, AnyViewHandle, AppContext, BorrowAppContext, BorrowWindowContext, Effect,
Element, Entity, Handle, MouseRegion, MouseRegionId, ParentId, SceneBuilder, Subscription,
View, ViewContext, ViewHandle, WindowInvalidation,
};
use anyhow::{anyhow, bail, Result};
use collections::{HashMap, HashSet};
@ -141,27 +141,23 @@ impl BorrowAppContext for WindowContext<'_> {
}
}
impl UpdateView for WindowContext<'_> {
type Output<S> = S;
impl BorrowWindowContext for WindowContext<'_> {
type ReturnValue<T> = T;
fn update_view<T, S>(
&mut self,
handle: &ViewHandle<T>,
update: &mut dyn FnMut(&mut T, &mut ViewContext<T>) -> S,
) -> S
where
T: View,
{
self.update_any_view(handle.view_id, |view, cx| {
let mut cx = ViewContext::mutable(cx, handle.view_id);
update(
view.as_any_mut()
.downcast_mut()
.expect("downcast is type safe"),
&mut cx,
)
})
.expect("view is already on the stack")
fn read_with<T, F: FnOnce(&WindowContext) -> T>(&self, window_id: usize, f: F) -> T {
if self.window_id == window_id {
f(self)
} else {
panic!("read_with called with id of window that does not belong to this context")
}
}
fn update<T, F: FnOnce(&mut WindowContext) -> T>(&mut self, window_id: usize, f: F) -> T {
if self.window_id == window_id {
f(self)
} else {
panic!("update called with id of window that does not belong to this context")
}
}
}
@ -225,6 +221,26 @@ impl<'a> WindowContext<'a> {
Some(result)
}
pub(crate) fn update_view<T, S>(
&mut self,
handle: &ViewHandle<T>,
update: &mut dyn FnMut(&mut T, &mut ViewContext<T>) -> S,
) -> S
where
T: View,
{
self.update_any_view(handle.view_id, |view, cx| {
let mut cx = ViewContext::mutable(cx, handle.view_id);
update(
view.as_any_mut()
.downcast_mut()
.expect("downcast is type safe"),
&mut cx,
)
})
.expect("view is already on the stack")
}
pub fn defer(&mut self, callback: impl 'static + FnOnce(&mut WindowContext)) {
let window_id = self.window_id;
self.app_context.defer(move |cx| {

4
crates/vim/src/test/vim_test_context.rs
View File

@ -3,7 +3,7 @@ use std::ops::{Deref, DerefMut};
use editor::test::{
editor_lsp_test_context::EditorLspTestContext, editor_test_context::EditorTestContext,
};
use gpui::{AppContext, ContextHandle};
use gpui::ContextHandle;
use search::{BufferSearchBar, ProjectSearchBar};
use crate::{state::Operator, *};
@ -45,7 +45,7 @@ impl<'a> VimTestContext<'a> {
pub fn workspace<F, T>(&mut self, read: F) -> T
where
F: FnOnce(&Workspace, &AppContext) -> T,
F: FnOnce(&Workspace, &ViewContext<Workspace>) -> T,
{
self.cx.workspace.read_with(self.cx.cx.cx, read)
}

23
crates/workspace/src/dock.rs
View File

@ -428,7 +428,7 @@ mod tests {
path::PathBuf,
};
use gpui::{AppContext, TestAppContext, UpdateView, View, ViewContext};
use gpui::{AppContext, BorrowWindowContext, TestAppContext, ViewContext, WindowContext};
use project::{FakeFs, Project};
use settings::Settings;
@ -660,7 +660,7 @@ mod tests {
pub fn workspace<F, T>(&self, read: F) -> T
where
F: FnOnce(&Workspace, &AppContext) -> T,
F: FnOnce(&Workspace, &ViewContext<Workspace>) -> T,
{
self.workspace.read_with(self.cx, read)
}
@ -810,18 +810,15 @@ mod tests {
}
}
impl<'a> UpdateView for DockTestContext<'a> {
type Output<S> = S;
impl BorrowWindowContext for DockTestContext<'_> {
type ReturnValue<T> = T;
fn update_view<T, S>(
&mut self,
handle: &ViewHandle<T>,
update: &mut dyn FnMut(&mut T, &mut ViewContext<T>) -> S,
) -> S
where
T: View,
{
handle.update(self.cx, update)
fn read_with<T, F: FnOnce(&WindowContext) -> T>(&self, window_id: usize, f: F) -> T {
BorrowWindowContext::read_with(self.cx, window_id, f)
}
fn update<T, F: FnOnce(&mut WindowContext) -> T>(&mut self, window_id: usize, f: F) -> T {
BorrowWindowContext::update(self.cx, window_id, f)
}
}
}

4
crates/workspace/src/pane.rs
View File

@ -981,7 +981,7 @@ impl Pane {
// was started.
let (item_ix, mut project_item_ids) = pane.read_with(&cx, |pane, cx| {
(pane.index_for_item(&*item), item.project_item_model_ids(cx))
});
})?;
let item_ix = if let Some(ix) = item_ix {
ix
} else {
@ -1001,7 +1001,7 @@ impl Pane {
project_item_ids.retain(|id| !other_project_item_ids.contains(id));
}
}
});
})?;
let should_save = project_item_ids
.iter()
.any(|id| saved_project_items_ids.insert(*id));

5
crates/workspace/src/persistence/model.rs
View File

@ -140,7 +140,10 @@ impl SerializedPaneGroup {
.await
.log_err()?;
if pane.read_with(cx, |pane, _| pane.items_len() != 0) {
if pane
.read_with(cx, |pane, _| pane.items_len() != 0)
.log_err()?
{
Some((Member::Pane(pane.clone()), active.then(|| pane)))
} else {
workspace

12
crates/workspace/src/workspace.rs
View File

@ -1226,7 +1226,7 @@ impl Workspace {
cx.read(|cx| (item.is_singleton(cx), item.project_entry_ids(cx)));
if singleton || !project_entry_ids.is_empty() {
if let Some(ix) =
pane.read_with(&cx, |pane, _| pane.index_for_item(item.as_ref()))
pane.read_with(&cx, |pane, _| pane.index_for_item(item.as_ref()))?
{
if !Pane::save_item(
project.clone(),
@ -2298,7 +2298,7 @@ impl Workspace {
this.read_with(&cx, |this, _| {
this.leader_updates_tx
.unbounded_send((leader_id, envelope.payload))
})?;
})??;
Ok(())
}
@ -2354,7 +2354,7 @@ impl Workspace {
.flat_map(|states_by_pane| states_by_pane.keys())
.cloned()
.collect()
});
})?;
Self::add_views_from_leader(this.clone(), leader_id, panes, vec![view], cx).await?;
}
}
@ -2369,7 +2369,7 @@ impl Workspace {
views: Vec<proto::View>,
cx: &mut AsyncAppContext,
) -> Result<()> {
let project = this.read_with(cx, |this, _| this.project.clone());
let project = this.read_with(cx, |this, _| this.project.clone())?;
let replica_id = project
.read_with(cx, |project, _| {
project
@ -2699,7 +2699,7 @@ impl Workspace {
workspace.dock_pane().clone(),
workspace.last_active_center_pane.clone(),
)
});
})?;
serialized_workspace
.dock_pane
@ -2765,7 +2765,7 @@ impl Workspace {
})?;
// Serialize ourself to make sure our timestamps and any pane / item changes are replicated
workspace.read_with(&cx, |workspace, cx| workspace.serialize_workspace(cx))
workspace.read_with(&cx, |workspace, cx| workspace.serialize_workspace(cx))?
}
anyhow::Ok(())
})