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path: root/support/texlab/src/completion/latex/begin_cmd.rs
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-rw-r--r--support/texlab/src/completion/latex/begin_cmd.rs70
1 files changed, 70 insertions, 0 deletions
diff --git a/support/texlab/src/completion/latex/begin_cmd.rs b/support/texlab/src/completion/latex/begin_cmd.rs
new file mode 100644
index 0000000000..44e7a4f60d
--- /dev/null
+++ b/support/texlab/src/completion/latex/begin_cmd.rs
@@ -0,0 +1,70 @@
+use super::combinators;
+use crate::{
+ completion::types::{Item, ItemData},
+ feature::FeatureRequest,
+ protocol::CompletionParams,
+};
+
+pub async fn complete_latex_begin_command<'a>(
+ req: &'a FeatureRequest<CompletionParams>,
+ items: &mut Vec<Item<'a>>,
+) {
+ combinators::command(req, |cmd_node| async move {
+ let table = req.current().content.as_latex().unwrap();
+ let cmd = table.as_command(cmd_node).unwrap();
+ let range = cmd.short_name_range();
+ items.push(Item::new(range, ItemData::BeginCommand));
+ })
+ .await;
+}
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+ use crate::feature::FeatureTester;
+
+ #[tokio::test]
+ async fn empty_latex_document() {
+ let req = FeatureTester::new()
+ .file("main.tex", "")
+ .main("main.tex")
+ .position(0, 0)
+ .test_completion_request()
+ .await;
+ let mut actual_items = Vec::new();
+
+ complete_latex_begin_command(&req, &mut actual_items).await;
+
+ assert!(actual_items.is_empty());
+ }
+
+ #[tokio::test]
+ async fn empty_bibtex_document() {
+ let req = FeatureTester::new()
+ .file("main.bib", "")
+ .main("main.bib")
+ .position(0, 0)
+ .test_completion_request()
+ .await;
+ let mut actual_items = Vec::new();
+
+ complete_latex_begin_command(&req, &mut actual_items).await;
+
+ assert!(actual_items.is_empty());
+ }
+
+ #[tokio::test]
+ async fn after_backslash() {
+ let req = FeatureTester::new()
+ .file("main.tex", r#"\"#)
+ .main("main.tex")
+ .position(0, 1)
+ .test_completion_request()
+ .await;
+ let mut actual_items = Vec::new();
+
+ complete_latex_begin_command(&req, &mut actual_items).await;
+
+ assert_eq!(actual_items.len(), 1);
+ }
+}