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use super::types::{LatexSymbol, LatexSymbolKind};
use crate::{
feature::{FeatureProvider, FeatureRequest},
protocol::DocumentSymbolParams,
syntax::SyntaxNode,
workspace::DocumentContent,
};
use async_trait::async_trait;
#[derive(Debug, PartialEq, Eq, Clone, Copy, Default)]
pub struct BibtexStringSymbolProvider;
#[async_trait]
impl FeatureProvider for BibtexStringSymbolProvider {
type Params = DocumentSymbolParams;
type Output = Vec<LatexSymbol>;
async fn execute<'a>(&'a self, req: &'a FeatureRequest<Self::Params>) -> Self::Output {
let mut symbols = Vec::new();
if let DocumentContent::Bibtex(tree) = &req.current().content {
for string_node in tree.children(tree.root) {
if let Some(string) = &tree.as_string(string_node) {
if let Some(name) = &string.name {
symbols.push(LatexSymbol {
name: name.text().into(),
label: None,
kind: LatexSymbolKind::String,
deprecated: false,
full_range: string.range(),
selection_range: name.range(),
children: Vec::new(),
});
}
}
}
}
symbols
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::{
feature::FeatureTester,
protocol::{Range, RangeExt},
};
#[tokio::test]
async fn empty_latex_document() {
let actual_symbols = FeatureTester::new()
.file("main.tex", "")
.main("main.tex")
.test_symbol(BibtexStringSymbolProvider)
.await;
assert!(actual_symbols.is_empty());
}
#[tokio::test]
async fn empty_bibtex_document() {
let actual_symbols = FeatureTester::new()
.file("main.bib", "")
.main("main.bib")
.test_symbol(BibtexStringSymbolProvider)
.await;
assert!(actual_symbols.is_empty());
}
#[tokio::test]
async fn valid() {
let actual_symbols = FeatureTester::new()
.file("main.bib", r#"@string{key = "value"}"#)
.main("main.bib")
.test_symbol(BibtexStringSymbolProvider)
.await;
let expected_symbols = vec![LatexSymbol {
name: "key".into(),
label: None,
kind: LatexSymbolKind::String,
deprecated: false,
full_range: Range::new_simple(0, 0, 0, 22),
selection_range: Range::new_simple(0, 8, 0, 11),
children: Vec::new(),
}];
assert_eq!(actual_symbols, expected_symbols);
}
#[tokio::test]
async fn invalid() {
let actual_symbols = FeatureTester::new()
.file("main.bib", r#"@string{}"#)
.main("main.bib")
.test_symbol(BibtexStringSymbolProvider)
.await;
assert!(actual_symbols.is_empty());
}
}
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