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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 fe00e78d1..ceb603c50 100644
--- a/crates/ra_syntax/src/ast.rs
+++ b/crates/ra_syntax/src/ast.rs
@@ -25,7 +25,7 @@ pub use self::{
25/// conversion itself has zero runtime cost: ast and syntax nodes have exactly 25/// conversion itself has zero runtime cost: ast and syntax nodes have exactly
26/// the same representation: a pointer to the tree root and a pointer to the 26/// the same representation: a pointer to the tree root and a pointer to the
27/// node itself. 27/// node itself.
28pub trait AstNode { 28pub trait AstNode: Clone {
29 fn cast(syntax: SyntaxNode) -> Option<Self> 29 fn cast(syntax: SyntaxNode) -> Option<Self>
30 where 30 where
31 Self: Sized; 31 Self: Sized;