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-rw-r--r--crates/ra_syntax/src/ast.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/crates/ra_syntax/src/ast.rs b/crates/ra_syntax/src/ast.rs
index 4a70c712f..26fafb469 100644
--- a/crates/ra_syntax/src/ast.rs
+++ b/crates/ra_syntax/src/ast.rs
@@ -30,7 +30,7 @@ pub use self::{
30/// conversion itself has zero runtime cost: ast and syntax nodes have exactly 30/// conversion itself has zero runtime cost: ast and syntax nodes have exactly
31/// the same representation: a pointer to the tree root and a pointer to the 31/// the same representation: a pointer to the tree root and a pointer to the
32/// node itself. 32/// node itself.
33pub trait AstNode { 33pub trait AstNode: std::fmt::Display {
34 fn can_cast(kind: SyntaxKind) -> bool 34 fn can_cast(kind: SyntaxKind) -> bool
35 where 35 where
36 Self: Sized; 36 Self: Sized;