Add a b"xx" byte string literal of type &'static [u8].

src/test/compile-fail/byte-string-literals.rs

@@ -0,0 +1,23 @@
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+
+// ignore-tidy-tab
+
+static FOO: &'static [u8] = b"\f";  //~ ERROR unknown byte escape
+
+pub fn main() {
+    b"\f";  //~ ERROR unknown byte escape
+    b"\x0Z";  //~ ERROR illegal character in numeric character escape: Z
+    b"é";  //~ ERROR byte constant must be ASCII
+    b"a  //~ ERROR unterminated double quote byte string
+}
+
+

src/test/compile-fail/concat.rs

@@ -10,6 +10,7 @@
 
 fn main() {
     concat!(b'f');  //~ ERROR: cannot concatenate a binary literal
+    concat!(b"foo");  //~ ERROR: cannot concatenate a binary literal
     concat!(foo);   //~ ERROR: expected a literal
     concat!(foo()); //~ ERROR: expected a literal
 }

src/test/run-pass/byte-literals.rs

@@ -10,6 +10,7 @@
 
 
 static FOO: u8 = b'\xF0';
+static BAR: &'static [u8] = b"a\xF0\t";
 
 pub fn main() {
     assert_eq!(b'a', 97u8);
@@ -35,4 +36,15 @@ pub fn main() {
         b'a' .. b'z' => {},
         _ => fail!()
     }
+
+    assert_eq!(b"a\n\r\t\\\'\"\0\xF0",
+               &[97u8, 10u8, 13u8, 9u8, 92u8, 39u8, 34u8, 0u8, 240u8]);
+    assert_eq!(b"a\
+                 b", &[97u8, 98u8]);
+    assert_eq!(BAR, &[97u8, 240u8, 9u8]);
+
+    match &[97u8, 10u8] {
+        b"a\n" => {},
+        _ => fail!(),
+    }
 }