diff options
Diffstat (limited to 'helix-lsp/src/lib.rs')
| -rw-r--r-- | helix-lsp/src/lib.rs | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/helix-lsp/src/lib.rs b/helix-lsp/src/lib.rs index abc930f8..f714395f 100644 --- a/helix-lsp/src/lib.rs +++ b/helix-lsp/src/lib.rs @@ -57,7 +57,7 @@ pub enum OffsetEncoding { pub mod util { use super::*; - use helix_core::{diagnostic::NumberOrString, Range, Rope, Transaction}; + use helix_core::{diagnostic::NumberOrString, Range, Rope, Selection, Tendril, Transaction}; /// Converts a diagnostic in the document to [`lsp::Diagnostic`]. /// @@ -196,6 +196,42 @@ pub mod util { Some(Range::new(start, end)) } + /// Creates a [Transaction] from the [lsp::TextEdit] in a completion response. + /// The transaction applies the edit to all cursors. + pub fn generate_transaction_from_completion_edit( + doc: &Rope, + selection: &Selection, + edit: lsp::TextEdit, + offset_encoding: OffsetEncoding, + ) -> Transaction { + let replacement: Option<Tendril> = if edit.new_text.is_empty() { + None + } else { + Some(edit.new_text.into()) + }; + + let text = doc.slice(..); + let primary_cursor = selection.primary().cursor(text); + + let start_offset = match lsp_pos_to_pos(doc, edit.range.start, offset_encoding) { + Some(start) => start as i128 - primary_cursor as i128, + None => return Transaction::new(doc), + }; + let end_offset = match lsp_pos_to_pos(doc, edit.range.end, offset_encoding) { + Some(end) => end as i128 - primary_cursor as i128, + None => return Transaction::new(doc), + }; + + Transaction::change_by_selection(doc, selection, |range| { + let cursor = range.cursor(text); + ( + (cursor as i128 + start_offset) as usize, + (cursor as i128 + end_offset) as usize, + replacement.clone(), + ) + }) + } + pub fn generate_transaction_from_edits( doc: &Rope, mut edits: Vec<lsp::TextEdit>, |