syntax: convert LitBinary from @[u8] to Rc<~[u8]>.

src/libsyntax/ast.rs

@@ -20,6 +20,7 @@ use parse::token;
 use std::cell::RefCell;
 use std::hashmap::HashMap;
 use std::option::Option;
+use std::rc::Rc;
 use std::to_str::ToStr;
 use extra::serialize::{Encodable, Decodable, Encoder, Decoder};
 
@@ -724,7 +725,7 @@ pub type Lit = Spanned<Lit_>;
 #[deriving(Clone, Eq, Encodable, Decodable, IterBytes)]
 pub enum Lit_ {
     LitStr(InternedString, StrStyle),
-    LitBinary(@[u8]),
+    LitBinary(Rc<~[u8]>),
     LitChar(u32),
     LitInt(i64, IntTy),
     LitUint(u64, UintTy),

src/libsyntax/ext/source_util.rs

@@ -22,6 +22,7 @@ use print::pprust;
 
 use std::io;
 use std::io::File;
+use std::rc::Rc;
 use std::str;
 
 // These macros all relate to the file system; they either return
@@ -135,8 +136,6 @@ pub fn expand_include_str(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
 pub fn expand_include_bin(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
         -> base::MacResult
 {
-    use std::at_vec;
-
     let file = match get_single_str_from_tts(cx, sp, tts, "include_bin!") {
         Some(f) => f,
         None => return MacResult::dummy_expr()
@@ -148,8 +147,7 @@ pub fn expand_include_bin(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
             return MacResult::dummy_expr();
         }
         Ok(bytes) => {
-            let bytes = at_vec::to_managed_move(bytes);
-            base::MRExpr(cx.expr_lit(sp, ast::LitBinary(bytes)))
+            base::MRExpr(cx.expr_lit(sp, ast::LitBinary(Rc::new(bytes))))
         }
     }
 }

src/libsyntax/print/pprust.rs

@@ -2212,10 +2212,10 @@ pub fn print_literal(s: &mut State, lit: &ast::Lit) {
       ast::LitBool(val) => {
         if val { word(&mut s.s, "true"); } else { word(&mut s.s, "false"); }
       }
-      ast::LitBinary(arr) => {
+      ast::LitBinary(ref arr) => {
         ibox(s, indent_unit);
         word(&mut s.s, "[");
-        commasep_cmnt(s, Inconsistent, arr, |s, u| word(&mut s.s, format!("{}", *u)),
+        commasep_cmnt(s, Inconsistent, *arr.borrow(), |s, u| word(&mut s.s, format!("{}", *u)),
                       |_| lit.span);
         word(&mut s.s, "]");
         end(s);