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use crate::range::RangeExt;
use crate::syntax::*;
use crate::workspace::*;
use futures_boxed::boxed;
use lsp_types::*;
#[derive(Debug, PartialEq, Eq, Clone, Copy)]
pub struct LatexIncludeHoverProvider;
impl FeatureProvider for LatexIncludeHoverProvider {
type Params = TextDocumentPositionParams;
type Output = Option<Hover>;
#[boxed]
async fn execute<'a>(
&'a self,
request: &'a FeatureRequest<TextDocumentPositionParams>,
) -> Option<Hover> {
let (range, targets) = Self::find_include(request)?;
for target in targets {
if let Some(document) = request.workspace().find(&target) {
let path = document.uri.to_file_path().ok()?;
return Some(Hover {
range: Some(range),
contents: HoverContents::Markup(MarkupContent {
kind: MarkupKind::PlainText,
value: path.to_string_lossy().into_owned(),
}),
});
}
}
None
}
}
impl LatexIncludeHoverProvider {
fn find_include(
request: &FeatureRequest<TextDocumentPositionParams>,
) -> Option<(Range, &[Uri])> {
if let SyntaxTree::Latex(tree) = &request.document().tree {
for include in &tree.includes {
for (i, path) in include.paths().iter().enumerate() {
let range = path.range();
if range.contains(request.params.position) {
return Some((range, &include.all_targets[i]));
}
}
}
}
None
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::range::RangeExt;
#[test]
fn test_multiple_paths() {
let hover = test_feature(
LatexIncludeHoverProvider,
FeatureSpec {
files: vec![
FeatureSpec::file("foo.tex", "\\include{bar, baz}"),
FeatureSpec::file("bar.tex", ""),
FeatureSpec::file("baz.tex", ""),
],
main_file: "foo.tex",
position: Position::new(0, 16),
..FeatureSpec::default()
},
);
assert_eq!(
hover,
Some(Hover {
contents: HoverContents::Markup(MarkupContent {
kind: MarkupKind::PlainText,
value: FeatureSpec::uri("baz.tex")
.to_file_path()
.unwrap()
.to_string_lossy()
.into_owned(),
}),
range: Some(Range::new_simple(0, 14, 0, 17)),
})
);
}
#[test]
fn test_empty() {
let hover = test_feature(
LatexIncludeHoverProvider,
FeatureSpec {
files: vec![FeatureSpec::file("foo.tex", "")],
main_file: "foo.tex",
position: Position::new(0, 0),
..FeatureSpec::default()
},
);
assert_eq!(hover, None);
}
}
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