Implement Default for proc_macro::TokenStream

dtolnay · dtolnay · commit d5ea92526549 · 2020-05-15T09:12:41.000-07:00
diff --git a/src/libproc_macro/lib.rs b/src/libproc_macro/lib.rs
@@ -158,6 +158,13 @@ impl fmt::Debug for TokenStream {
     }
 }
 
+#[stable(feature = "proc_macro_token_stream_default", since = "1.45.0")]
+impl Default for TokenStream {
+    fn default() -> Self {
+        TokenStream::new()
+    }
+}
+
 #[unstable(feature = "proc_macro_quote", issue = "54722")]
 pub use quote::{quote, quote_span};
 

Original file line number	Diff line number	Diff line change
`@@ -158,6 +158,13 @@ impl fmt::Debug for TokenStream {`
`158`	`158`	`}`
`159`	`159`	`}`
`160`	`160`
	`161`	`+#[stable(feature = "proc_macro_token_stream_default", since = "1.45.0")]`
	`162`	`+impl Default for TokenStream {`
	`163`	`+ fn default() -> Self {`
	`164`	`+ TokenStream::new()`
	`165`	`+ }`
	`166`	`+}`
	`167`	`+`
`161`	`168`	`#[unstable(feature = "proc_macro_quote", issue = "54722")]`
`162`	`169`	`pub use quote::{quote, quote_span};`
`163`	`170`