4 files changed, 64 insertions, 1 deletions

diff --git a/crates/syntax/Cargo.toml b/crates/syntax/Cargo.toml
index c6a6f11e1..21015591c 100644
--- a/crates/syntax/Cargo.toml
+++ b/crates/syntax/Cargo.toml
@@ -13,7 +13,7 @@ doctest = false
 [dependencies]
 itertools = "0.9.0"
 rowan = "0.10.0"
-rustc_lexer = { version = "691.0.0", package = "rustc-ap-rustc_lexer" }
+rustc_lexer = { version = "695.0.0", 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/expr_ext.rs b/crates/syntax/src/ast/expr_ext.rs
index e4a9b945c..636ce166d 100644
--- a/crates/syntax/src/ast/expr_ext.rs
+++ b/crates/syntax/src/ast/expr_ext.rs
@@ -358,6 +358,7 @@ pub enum Effect {
     Async(SyntaxToken),
     Unsafe(SyntaxToken),
     Try(SyntaxToken),
+    Const(SyntaxToken),
     // Very much not an effect, but we stuff it into this node anyway
     Label(ast::Label),
 }
@@ -373,6 +374,9 @@ impl ast::EffectExpr {
         if let Some(token) = self.try_token() {
             return Effect::Try(token);
         }
+        if let Some(token) = self.const_token() {
+            return Effect::Const(token);
+        }
         if let Some(label) = self.label() {
             return Effect::Label(label);
         }
diff --git a/crates/syntax/test_data/parser/inline/ok/0158_macro_rules_non_brace.rast b/crates/syntax/test_data/parser/inline/ok/0158_macro_rules_non_brace.rast
new file mode 100644
index 000000000..4a1f712aa
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0158_macro_rules_non_brace.rast
@@ -0,0 +1,57 @@
+[email protected]
+  [email protected]
+    [email protected] "macro_rules"
+    [email protected] "!"
+    [email protected] " "
+    [email protected]
+      [email protected] "m"
+    [email protected] " "
+    [email protected]
+      [email protected] "("
+      [email protected] " "
+      [email protected]
+        [email protected] "("
+        [email protected] "$"
+        [email protected] "i"
+        [email protected] ":"
+        [email protected] "ident"
+        [email protected] ")"
+      [email protected] " "
+      [email protected] "="
+      [email protected] ">"
+      [email protected] " "
+      [email protected]
+        [email protected] "{"
+        [email protected] "}"
+      [email protected] " "
+      [email protected] ")"
+    [email protected] ";"
+  [email protected] "\n"
+  [email protected]
+    [email protected] "macro_rules"
+    [email protected] "!"
+    [email protected] " "
+    [email protected]
+      [email protected] "m"
+    [email protected] " "
+    [email protected]
+      [email protected] "["
+      [email protected] " "
+      [email protected]
+        [email protected] "("
+        [email protected] "$"
+        [email protected] "i"
+        [email protected] ":"
+        [email protected] "ident"
+        [email protected] ")"
+      [email protected] " "
+      [email protected] "="
+      [email protected] ">"
+      [email protected] " "
+      [email protected]
+        [email protected] "{"
+        [email protected] "}"
+      [email protected] " "
+      [email protected] "]"
+    [email protected] ";"
+  [email protected] "\n"
diff --git a/crates/syntax/test_data/parser/inline/ok/0158_macro_rules_non_brace.rs b/crates/syntax/test_data/parser/inline/ok/0158_macro_rules_non_brace.rs
new file mode 100644
index 000000000..6033a28cd
--- /dev/null
+++ b/crates/syntax/test_data/parser/inline/ok/0158_macro_rules_non_brace.rs
@@ -0,0 +1,2 @@
+macro_rules! m ( ($i:ident) => {} );
+macro_rules! m [ ($i:ident) => {} ];