commit 977f828f3e153038b36f1fc9ee73489b30360f4f
author David Tolnay <dtolnay@gmail.com> Wed May 31 17:41:33 2017 -0700
committer David Tolnay <dtolnay@gmail.com> Wed May 31 17:51:16 2017 -0700
tree a85f939056e94f9b248d4aa70d1e52dcd6466846
parent 98afa0e6389a1cb0c78d3d863eba7a8b9db0aead

Derive debug

src/stable.rs

diff --git a/src/stable.rs b/src/stable.rs
index bea0180..50feb0f 100644
--- a/src/stable.rs
+++ b/src/stable.rs
@@ -18,7 +18,7 @@
 
 use {TokenTree, TokenKind, Delimiter, OpKind};
 
-#[derive(Clone)]
+#[derive(Clone, Debug)]
 pub struct TokenStream {
     inner: Vec<TokenTree>,
 }
@@ -139,7 +139,7 @@
     }
 }
 
-#[derive(Clone, Copy, Default)]
+#[derive(Clone, Copy, Default, Debug)]
 pub struct Span;
 
 impl Span {
@@ -148,7 +148,7 @@
     }
 }
 
-#[derive(Copy, Clone)]
+#[derive(Copy, Clone, Debug)]
 pub struct Symbol(usize);
 
 thread_local!(static SYMBOLS: RefCell<Interner> = RefCell::new(Interner::new()));
@@ -210,7 +210,7 @@
    }
 }
 
-#[derive(Clone)]
+#[derive(Clone, Debug)]
 pub struct Literal(String);
 
 impl Literal {