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-rw-r--r--helix-core/src/state.rs6
-rw-r--r--helix-core/src/transaction.rs7
2 files changed, 12 insertions, 1 deletions
diff --git a/helix-core/src/state.rs b/helix-core/src/state.rs
index 9d51c8c5..ed0df9cf 100644
--- a/helix-core/src/state.rs
+++ b/helix-core/src/state.rs
@@ -1,6 +1,6 @@
use crate::graphemes::{nth_next_grapheme_boundary, nth_prev_grapheme_boundary, RopeGraphemes};
use crate::syntax::LOADER;
-use crate::{Position, Range, Rope, RopeSlice, Selection, Syntax};
+use crate::{ChangeSet, Position, Range, Rope, RopeSlice, Selection, Syntax};
use anyhow::Error;
use std::path::PathBuf;
@@ -25,6 +25,8 @@ pub struct State {
//
pub syntax: Option<Syntax>,
+ pub changes: Option<ChangeSet>,
+ pub old_state: Option<(Rope, Selection)>,
}
#[derive(Copy, Clone, PartialEq, Eq)]
@@ -50,6 +52,8 @@ impl State {
mode: Mode::Normal,
restore_cursor: false,
syntax: None,
+ changes: None,
+ old_state: None,
}
}
diff --git a/helix-core/src/transaction.rs b/helix-core/src/transaction.rs
index d6b151ba..7871052a 100644
--- a/helix-core/src/transaction.rs
+++ b/helix-core/src/transaction.rs
@@ -369,6 +369,13 @@ impl Transaction {
return false;
}
+ // Compose this transaction with the previous one
+ let old_changes = state.changes.take();
+ state.changes = Some(old_changes.map_or_else(
+ || self.changes.clone(),
+ |changes| changes.compose(self.changes.clone()).unwrap(),
+ ));
+
if let Some(syntax) = &mut state.syntax {
// TODO: no unwrap
syntax.update(&old_doc, &state.doc, &self.changes).unwrap();