diff options
Diffstat (limited to 'support/texlab/src/features/completion/user_command.rs')
-rw-r--r-- | support/texlab/src/features/completion/user_command.rs | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/support/texlab/src/features/completion/user_command.rs b/support/texlab/src/features/completion/user_command.rs new file mode 100644 index 0000000000..8b4473f31c --- /dev/null +++ b/support/texlab/src/features/completion/user_command.rs @@ -0,0 +1,100 @@ +use cancellation::CancellationToken; +use lsp_types::CompletionParams; + +use crate::features::cursor::CursorContext; + +use super::types::{InternalCompletionItem, InternalCompletionItemData}; + +pub fn complete_user_commands<'a>( + context: &'a CursorContext<CompletionParams>, + items: &mut Vec<InternalCompletionItem<'a>>, + cancellation_token: &CancellationToken, +) -> Option<()> { + cancellation_token.result().ok()?; + + let range = context.cursor.command_range(context.offset)?; + let token = context.cursor.as_latex()?; + + for document in &context.request.subset.documents { + if let Some(data) = document.data.as_latex() { + for name in data + .extras + .command_names + .iter() + .filter(|name| name.as_str() != token.text()) + .map(|name| &name[1..]) + { + cancellation_token.result().ok()?; + items.push(InternalCompletionItem::new( + range, + InternalCompletionItemData::UserCommand { 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_user_commands(&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_user_commands(&context, &mut actual_items, CancellationToken::none()); + + assert!(actual_items.is_empty()); + } + + #[test] + fn test_latex_simple() { + let request = FeatureTester::builder() + .files(vec![("main.tex", "\\foo\\bar")]) + .main("main.tex") + .line(0) + .character(4) + .build() + .completion(); + + let context = CursorContext::new(request); + let mut actual_items = Vec::new(); + complete_user_commands(&context, &mut actual_items, CancellationToken::none()); + + assert_eq!(actual_items.len(), 1); + for item in actual_items { + assert_eq!(item.range, TextRange::new(1.into(), 4.into())); + } + } +} |