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use cancellation::CancellationToken;
use lsp_types::CompletionParams;
use crate::{
features::cursor::CursorContext,
syntax::{latex, CstNode},
LANGUAGE_DATA,
};
use super::types::{InternalCompletionItem, InternalCompletionItemData};
pub fn complete_colors<'a>(
context: &'a CursorContext<CompletionParams>,
items: &mut Vec<InternalCompletionItem<'a>>,
cancellation_token: &CancellationToken,
) -> Option<()> {
cancellation_token.result().ok()?;
let (_, range, group) = context.find_curly_group_word()?;
latex::ColorReference::cast(group.syntax().parent()?)?;
for name in &LANGUAGE_DATA.colors {
items.push(InternalCompletionItem::new(
range,
InternalCompletionItemData::Color { name },
));
}
Some(())
}
#[cfg(test)]
mod tests {
use cstree::TextRange;
use crate::features::testing::FeatureTester;
use super::*;
#[test]
fn test_empty_latex_document() {
let request = FeatureTester::builder()
.files(vec![("main.tex", "")])
.main("main.tex")
.line(0)
.character(0)
.build()
.completion();
let context = CursorContext::new(request);
let mut actual_items = Vec::new();
complete_colors(&context, &mut actual_items, CancellationToken::none());
assert!(actual_items.is_empty());
}
#[test]
fn test_empty_bibtex_document() {
let request = FeatureTester::builder()
.files(vec![("main.bib", "")])
.main("main.bib")
.line(0)
.character(0)
.build()
.completion();
let context = CursorContext::new(request);
let mut actual_items = Vec::new();
complete_colors(&context, &mut actual_items, CancellationToken::none());
assert!(actual_items.is_empty());
}
#[test]
fn test_latex_simple() {
let request = FeatureTester::builder()
.files(vec![("main.tex", "\\color{}")])
.main("main.tex")
.line(0)
.character(7)
.build()
.completion();
let context = CursorContext::new(request);
let mut actual_items = Vec::new();
complete_colors(&context, &mut actual_items, CancellationToken::none());
assert!(!actual_items.is_empty());
for item in actual_items {
assert_eq!(item.range, TextRange::new(7.into(), 7.into()));
}
}
#[test]
fn test_latex_open_brace() {
let request = FeatureTester::builder()
.files(vec![("main.tex", "\\color{")])
.main("main.tex")
.line(0)
.character(7)
.build()
.completion();
let context = CursorContext::new(request);
let mut actual_items = Vec::new();
complete_colors(&context, &mut actual_items, CancellationToken::none());
assert!(!actual_items.is_empty());
for item in actual_items {
assert_eq!(item.range, TextRange::new(7.into(), 7.into()));
}
}
}
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