Use concat() instead of join("")

[rust.git] / src / rewrite.rs

diff --git a/src/rewrite.rs b/src/rewrite.rs
index f463732c0e497dbccd4fa9f4482fa592518c4b46..17bb027bd5685b64a41fa0f2e1409aafc318e784 100644 (file)
--- a/src/rewrite.rs
+++ b/src/rewrite.rs
@@ -11,6 +11,7 @@
 // A generic trait to abstract the rewriting of an element (of the AST).
 
 use syntax::parse::ParseSess;
+use syntax::ptr;
 use syntax::source_map::{SourceMap, Span};
 
 use config::{Config, IndentStyle};
@@ -25,6 +26,12 @@ pub trait Rewrite {
     fn rewrite(&self, context: &RewriteContext, shape: Shape) -> Option<String>;
 }
 
+impl<T: Rewrite> Rewrite for ptr::P<T> {
+    fn rewrite(&self, context: &RewriteContext, shape: Shape) -> Option<String> {
+        (**self).rewrite(context, shape)
+    }
+}
+
 #[derive(Clone)]
 pub struct RewriteContext<'a> {
     pub parse_session: &'a ParseSess,
@@ -33,7 +40,7 @@ pub struct RewriteContext<'a> {
     pub inside_macro: RefCell<bool>,
     // Force block indent style even if we are using visual indent style.
     pub use_block: RefCell<bool>,
-    // When `format_if_else_cond_comment` is true, unindent the comment on top
+    // When `is_if_else_block` is true, unindent the comment on top
     // of the `else` or `else if`.
     pub is_if_else_block: RefCell<bool>,
     // When rewriting chain, veto going multi line except the last element