:arrow_up: rowan

4 files changed, 21 insertions, 22 deletions

diff --git a/Cargo.lock b/Cargo.lock
index fe08edd29..ef3735197 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1180,7 +1180,7 @@ dependencies = [
  "once_cell 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ra_parser 0.1.0",
  "ra_text_edit 0.1.0",
- "rowan 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rowan 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hash 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_lexer 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "smol_str 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1445,7 +1445,7 @@ dependencies = [
 
 [[package]]
 name = "rowan"
-version = "0.6.3"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "rustc-hash 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1993,7 +1993,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum relative-path 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bedde000f40f2921ce439ea165c9c53fd629bfa115140c72e22aceacb4a21954"
 "checksum remove_dir_all 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "4a83fa3702a688b9359eccba92d153ac33fd2e8462f9e0e3fdf155239ea7792e"
 "checksum ron 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2ece421e0c4129b90e4a35b6f625e472e96c552136f5093a2f4fa2bbb75a62d5"
-"checksum rowan 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)" = "fc3a6fb2a35518af7cab43ec4e21ca82eb086a8b3bb1739e426dc3923d459607"
+"checksum rowan 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d3a241900475bf2ba302061550ff50c82b45095ca95d23d1872345793fd42407"
 "checksum rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)" = "4c691c0e608126e00913e33f0ccf3727d5fc84573623b8d65b2df340b5201783"
 "checksum rustc-hash 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7540fc8b0c49f096ee9c961cda096467dce8084bec6bdca2fc83895fd9b28cb8"
 "checksum rustc_lexer 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c86aae0c77166108c01305ee1a36a1e77289d7dc6ca0a3cd91ff4992de2d16a5"
diff --git a/crates/ra_syntax/Cargo.toml b/crates/ra_syntax/Cargo.toml
index 45a18a73f..5db2b58c0 100644
--- a/crates/ra_syntax/Cargo.toml
+++ b/crates/ra_syntax/Cargo.toml
@@ -12,7 +12,7 @@ doctest = false
 
 [dependencies]
 itertools = "0.8.0"
-rowan = "0.6.1"
+rowan = "0.7.0"
 rustc_lexer = "0.1.0"
 rustc-hash = "1.0.1"
 arrayvec = "0.5.1"
diff --git a/crates/ra_syntax/src/algo.rs b/crates/ra_syntax/src/algo.rs
index 7cfea70f9..1c075082a 100644
--- a/crates/ra_syntax/src/algo.rs
+++ b/crates/ra_syntax/src/algo.rs
@@ -134,23 +134,19 @@ pub fn insert_children(
         to_green_element(element)
     });
 
-    let old_children = parent.green().children();
+    let mut old_children = parent.green().children().map(|it| match it {
+        NodeOrToken::Token(it) => NodeOrToken::Token(it.clone()),
+        NodeOrToken::Node(it) => NodeOrToken::Node(it.clone()),
+    });
 
     let new_children = match &position {
-        InsertPosition::First => {
-            to_insert.chain(old_children.iter().cloned()).collect::<Box<[_]>>()
-        }
-        InsertPosition::Last => old_children.iter().cloned().chain(to_insert).collect::<Box<[_]>>(),
+        InsertPosition::First => to_insert.chain(old_children).collect::<Box<[_]>>(),
+        InsertPosition::Last => old_children.chain(to_insert).collect::<Box<[_]>>(),
         InsertPosition::Before(anchor) | InsertPosition::After(anchor) => {
             let take_anchor = if let InsertPosition::After(_) = position { 1 } else { 0 };
             let split_at = position_of_child(parent, anchor.clone()) + take_anchor;
-            let (before, after) = old_children.split_at(split_at);
-            before
-                .iter()
-                .cloned()
-                .chain(to_insert)
-                .chain(after.iter().cloned())
-                .collect::<Box<[_]>>()
+            let before = old_children.by_ref().take(split_at).collect::<Vec<_>>();
+            before.into_iter().chain(to_insert).chain(old_children).collect::<Box<[_]>>()
         }
     };
 
@@ -168,13 +164,16 @@ pub fn replace_children(
 ) -> SyntaxNode {
     let start = position_of_child(parent, to_delete.start().clone());
     let end = position_of_child(parent, to_delete.end().clone());
-    let old_children = parent.green().children();
+    let mut old_children = parent.green().children().map(|it| match it {
+        NodeOrToken::Token(it) => NodeOrToken::Token(it.clone()),
+        NodeOrToken::Node(it) => NodeOrToken::Node(it.clone()),
+    });
 
-    let new_children = old_children[..start]
-        .iter()
-        .cloned()
+    let before = old_children.by_ref().take(start).collect::<Vec<_>>();
+    let new_children = before
+        .into_iter()
         .chain(to_insert.map(to_green_element))
-        .chain(old_children[end + 1..].iter().cloned())
+        .chain(old_children.skip(end + 1 - start))
         .collect::<Box<[_]>>();
     with_children(parent, new_children)
 }
diff --git a/crates/ra_syntax/src/ast/extensions.rs b/crates/ra_syntax/src/ast/extensions.rs
index 761b2435c..4851dacb2 100644
--- a/crates/ra_syntax/src/ast/extensions.rs
+++ b/crates/ra_syntax/src/ast/extensions.rs
@@ -32,7 +32,7 @@ impl ast::NameRef {
 }
 
 fn text_of_first_token(node: &SyntaxNode) -> &SmolStr {
-    node.green().children().first().and_then(|it| it.as_token()).unwrap().text()
+    node.green().children().next().and_then(|it| it.into_token()).unwrap().text()
 }
 
 impl ast::Attr {