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-rw-r--r--helix-lsp/src/lib.rs38
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>,