3 files changed, 10 insertions, 6 deletions

diff --git a/crates/syntax/Cargo.toml b/crates/syntax/Cargo.toml
index d836c5d1a..9ee3a8586 100644
--- a/crates/syntax/Cargo.toml
+++ b/crates/syntax/Cargo.toml
@@ -13,7 +13,7 @@ doctest = false
 [dependencies]
 itertools = "0.10.0"
 rowan = "0.12.2"
-rustc_lexer = { version = "708.0.0", package = "rustc-ap-rustc_lexer" }
+rustc_lexer = { version = "709.0.0", package = "rustc-ap-rustc_lexer" }
 rustc-hash = "1.1.0"
 arrayvec = "0.5.1"
 once_cell = "1.3.1"
diff --git a/crates/syntax/src/ast/edit.rs b/crates/syntax/src/ast/edit.rs
index 824ebf41c..0b3b76d4a 100644
--- a/crates/syntax/src/ast/edit.rs
+++ b/crates/syntax/src/ast/edit.rs
@@ -595,11 +595,14 @@ impl ops::Add<u8> for IndentLevel {
 
 impl IndentLevel {
     pub fn from_node(node: &SyntaxNode) -> IndentLevel {
-        let first_token = match node.first_token() {
-            Some(it) => it,
+        match node.first_token() {
+            Some(it) => Self::from_token(&it),
             None => return IndentLevel(0),
-        };
-        for ws in prev_tokens(first_token).filter_map(ast::Whitespace::cast) {
+        }
+    }
+
+    pub fn from_token(token: &SyntaxToken) -> IndentLevel {
+        for ws in prev_tokens(token.clone()).filter_map(ast::Whitespace::cast) {
             let text = ws.syntax().text();
             if let Some(pos) = text.rfind('\n') {
                 let level = text[pos + 1..].chars().count() / 4;
diff --git a/crates/syntax/src/ast/token_ext.rs b/crates/syntax/src/ast/token_ext.rs
index 044e3e5e8..977eb8181 100644
--- a/crates/syntax/src/ast/token_ext.rs
+++ b/crates/syntax/src/ast/token_ext.rs
@@ -85,8 +85,9 @@ pub enum CommentPlacement {
 }
 
 impl CommentKind {
-    const BY_PREFIX: [(&'static str, CommentKind); 8] = [
+    const BY_PREFIX: [(&'static str, CommentKind); 9] = [
         ("/**/", CommentKind { shape: CommentShape::Block, doc: None }),
+        ("/***", CommentKind { shape: CommentShape::Block, doc: None }),
         ("////", CommentKind { shape: CommentShape::Line, doc: None }),
         ("///", CommentKind { shape: CommentShape::Line, doc: Some(CommentPlacement::Outer) }),
         ("//!", CommentKind { shape: CommentShape::Line, doc: Some(CommentPlacement::Inner) }),