Reduce State use a bit further

This is a legacy type that should be fully removed.

helix-core/src/state.rs

@@ -1,6 +1,5 @@
 use crate::{Rope, Selection};
 
-/// A state represents the current editor state of a single buffer.
 #[derive(Debug, Clone)]
 pub struct State {
     pub doc: Rope,
@@ -15,27 +14,4 @@ impl State {
             selection: Selection::point(0),
         }
     }
-
-    // update/transact:
-    // update(desc) => transaction ?  transaction.doc() for applied doc
-    // transaction.apply(doc)
-    // doc.transact(fn -> ... end)
-
-    // replaceSelection (transaction that replaces selection)
-    // changeByRange
-    // changes
-    // slice
-    //
-    // getters:
-    // tabSize
-    // indentUnit
-    // languageDataAt()
-    //
-    // config:
-    // indentation
-    // tabSize
-    // lineUnit
-    // syntax
-    // foldable
-    // changeFilter/transactionFilter
 }

helix-core/src/syntax.rs

@@ -1828,15 +1828,14 @@ mod test {
 
     #[test]
     fn test_input_edits() {
-        use crate::State;
         use tree_sitter::InputEdit;
 
-        let state = State::new("hello world!\ntest 123".into());
+        let doc = Rope::from("hello world!\ntest 123");
         let transaction = Transaction::change(
-            &state.doc,
+            &doc,
             vec![(6, 11, Some("test".into())), (12, 17, None)].into_iter(),
         );
-        let edits = LanguageLayer::generate_edits(state.doc.slice(..), transaction.changes());
+        let edits = LanguageLayer::generate_edits(doc.slice(..), transaction.changes());
         // transaction.apply(&mut state);
 
         assert_eq!(
@@ -1862,13 +1861,13 @@ mod test {
         );
 
         // Testing with the official example from tree-sitter
-        let mut state = State::new("fn test() {}".into());
+        let mut doc = Rope::from("fn test() {}");
         let transaction =
-            Transaction::change(&state.doc, vec![(8, 8, Some("a: u32".into()))].into_iter());
-        let edits = LanguageLayer::generate_edits(state.doc.slice(..), transaction.changes());
-        transaction.apply(&mut state.doc);
+            Transaction::change(&doc, vec![(8, 8, Some("a: u32".into()))].into_iter());
+        let edits = LanguageLayer::generate_edits(doc.slice(..), transaction.changes());
+        transaction.apply(&mut doc);
 
-        assert_eq!(state.doc, "fn test(a: u32) {}");
+        assert_eq!(doc, "fn test(a: u32) {}");
         assert_eq!(
             edits,
             &[InputEdit {

helix-core/src/transaction.rs

@@ -689,21 +689,21 @@ mod test {
 
     #[test]
     fn transaction_change() {
-        let mut state = State::new("hello world!\ntest 123".into());
+        let mut doc = Rope::from("hello world!\ntest 123".into());
         let transaction = Transaction::change(
             &state.doc,
             // (1, 1, None) is a useless 0-width delete
             vec![(1, 1, None), (6, 11, Some("void".into())), (12, 17, None)].into_iter(),
         );
-        transaction.apply(&mut state.doc);
-        assert_eq!(state.doc, Rope::from_str("hello void! 123"));
+        transaction.apply(&mut doc);
+        assert_eq!(doc, Rope::from_str("hello void! 123"));
     }
 
     #[test]
     fn changes_iter() {
-        let state = State::new("hello world!\ntest 123".into());
+        let doc = Rope::from("hello world!\ntest 123".into());
         let changes = vec![(6, 11, Some("void".into())), (12, 17, None)];
-        let transaction = Transaction::change(&state.doc, changes.clone().into_iter());
+        let transaction = Transaction::change(&doc, changes.clone().into_iter());
         assert_eq!(transaction.changes_iter().collect::<Vec<_>>(), changes);
     }