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Code Issues Projects Releases Wiki Activity

Injection Query Support (#430)

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* wip

* wip

* fixed unsafe

* fix clippy

* move out reference variable

* fmt

* remove arc

* change safety comment
This commit is contained in:
Kirawi 2021-07-10 21:40:18 -04:00 committed by GitHub
parent 084a8a9522
commit bb121a3e4b
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1 changed files with 33 additions and 3 deletions
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36
helix-term/src/ui/editor.rs
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@ -64,6 +64,7 @@ pub fn render_view(
surface: &mut Surface,
theme: &Theme,
is_focused: bool,
loader: &syntax::Loader,
) {
let area = Rect::new(
view.area.x + OFFSET,
@ -72,7 +73,7 @@ pub fn render_view(
view.area.height.saturating_sub(1),
); // - 1 for statusline
self.render_buffer(doc, view, area, surface, theme, is_focused);
self.render_buffer(doc, view, area, surface, theme, is_focused, loader);
// if we're not at the edge of the screen, draw a right border
if viewport.right() != view.area.right() {
@ -98,6 +99,7 @@ pub fn render_view(
self.render_statusline(doc, view, area, surface, theme, is_focused);
}
#[allow(clippy::too_many_arguments)]
pub fn render_buffer(
&self,
doc: &Document,
@ -106,6 +108,7 @@ pub fn render_buffer(
surface: &mut Surface,
theme: &Theme,
is_focused: bool,
loader: &syntax::Loader,
) {
let text = doc.text().slice(..);
@ -122,8 +125,26 @@ pub fn render_buffer(
// TODO: range doesn't actually restrict source, just highlight range
let highlights: Vec<_> = match doc.syntax() {
Some(syntax) => {
let scopes = theme.scopes();
syntax
.highlight_iter(text.slice(..), Some(range), None, |_| None)
.highlight_iter(text.slice(..), Some(range), None, |language| {
loader
.language_config_for_scope(&format!("source.{}", language))
.and_then(|language_config| {
let config = language_config.highlight_config(scopes)?;
let config_ref = config.as_ref();
// SAFETY: the referenced `HighlightConfiguration` behind
// the `Arc` is guaranteed to remain valid throughout the
// duration of the highlight.
let config_ref = unsafe {
std::mem::transmute::<
_,
&'static syntax::HighlightConfiguration,
>(config_ref)
};
Some(config_ref)
})
})
.collect() // TODO: we collect here to avoid holding the lock, fix later
}
None => vec![Ok(HighlightEvent::Source {
@ -719,7 +740,16 @@ fn render(&self, area: Rect, surface: &mut Surface, cx: &mut Context) {
for (view, is_focused) in cx.editor.tree.views() {
let doc = cx.editor.document(view.doc).unwrap();
self.render_view(doc, view, area, surface, &cx.editor.theme, is_focused);
let loader = &cx.editor.syn_loader;
self.render_view(
doc,
view,
area,
surface,
&cx.editor.theme,
is_focused,
loader,
);
}
if let Some(info) = std::mem::take(&mut cx.editor.autoinfo) {