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use super::combinators::{self, Parameter};
use crate::completion::factory;
use crate::completion::DATABASE;
use crate::workspace::*;
use futures_boxed::boxed;
use lsp_types::*;
use std::iter;
#[derive(Debug, PartialEq, Eq, Clone, Copy)]
pub struct LatexArgumentCompletionProvider;
impl FeatureProvider for LatexArgumentCompletionProvider {
type Params = CompletionParams;
type Output = Vec<CompletionItem>;
#[boxed]
async fn execute<'a>(&'a self, request: &'a FeatureRequest<Self::Params>) -> Self::Output {
let mut all_items = Vec::new();
for component in DATABASE.related_components(request.related_documents()) {
for command in &component.commands {
let name = format!("\\{}", command.name);
for (i, parameter) in command.parameters.iter().enumerate() {
let mut items = combinators::argument(
request,
iter::once(Parameter::new(&name, i)),
|context| {
async move {
let mut items = Vec::new();
for argument in ¶meter.0 {
let text_edit =
TextEdit::new(context.range, (&argument.name).into());
let item = factory::argument(
request,
&argument.name,
text_edit,
argument.image.as_ref().map(AsRef::as_ref),
);
items.push(item);
}
items
}
},
)
.await;
all_items.append(&mut items);
}
}
}
all_items
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::range::RangeExt;
use lsp_types::{Position, Range};
#[test]
fn test_inside_mathbb_empty() {
let items = test_feature(
LatexArgumentCompletionProvider,
FeatureSpec {
files: vec![FeatureSpec::file(
"foo.tex",
"\\usepackage{amsfonts}\n\\mathbb{}",
)],
main_file: "foo.tex",
position: Position::new(1, 8),
..FeatureSpec::default()
},
);
assert!(!items.is_empty());
assert_eq!(
items[0].text_edit.as_ref().map(|edit| edit.range),
Some(Range::new_simple(1, 8, 1, 8))
);
}
#[test]
fn test_inside_mathbb_non_empty() {
let items = test_feature(
LatexArgumentCompletionProvider,
FeatureSpec {
files: vec![FeatureSpec::file(
"foo.tex",
"\\usepackage{amsfonts}\n\\mathbb{foo}",
)],
main_file: "foo.tex",
position: Position::new(1, 8),
..FeatureSpec::default()
},
);
assert!(!items.is_empty());
assert_eq!(
items[0].text_edit.as_ref().map(|edit| edit.range),
Some(Range::new_simple(1, 8, 1, 11))
);
}
#[test]
fn test_outside_mathbb() {
let items = test_feature(
LatexArgumentCompletionProvider,
FeatureSpec {
files: vec![FeatureSpec::file(
"foo.tex",
"\\usepackage{amsfonts}\n\\mathbb{}",
)],
main_file: "foo.tex",
position: Position::new(1, 9),
..FeatureSpec::default()
},
);
assert!(items.is_empty());
}
}
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