Feature gate raw identifiers.

src/test/run-pass/rfc-2151-raw-identifiers/attr.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(raw_identifiers)]
+
 use std::mem;
 
 #[r#repr(r#C, r#packed)]

src/test/run-pass/rfc-2151-raw-identifiers/basic.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(raw_identifiers)]
+
 fn r#fn(r#match: u32) -> u32 {
     r#match
 }

src/test/run-pass/rfc-2151-raw-identifiers/items.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(raw_identifiers)]
+
 #[derive(Debug, PartialEq, Eq)]
 struct IntWrapper(u32);
 

src/test/run-pass/rfc-2151-raw-identifiers/macros.rs

@@ -9,6 +9,7 @@
 // except according to those terms.
 
 #![feature(decl_macro)]
+#![feature(raw_identifiers)]
 
 r#macro_rules! r#struct {
     ($r#struct:expr) => { $r#struct }

src/test/ui/feature-gate-raw-identifiers.rs

@@ -0,0 +1,14 @@
+// Copyright 2018 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.
+
+fn main() {
+    let r#foo = 3; //~ ERROR raw identifiers are experimental and subject to change
+    println!("{}", foo);
+}

src/test/ui/feature-gate-raw-identifiers.stderr

@@ -0,0 +1,11 @@
+error[E0658]: raw identifiers are experimental and subject to change (see issue #48589)
+  --> $DIR/feature-gate-raw-identifiers.rs:12:9
+   |
+LL |     let r#foo = 3; //~ ERROR raw identifiers are experimental and subject to change
+   |         ^^^^^
+   |
+   = help: add #![feature(raw_identifiers)] to the crate attributes to enable
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0658`.

src/test/ui/raw-literal-keywords.rs

@@ -11,6 +11,7 @@
 // compile-flags: -Z parse-only
 
 #![feature(dyn_trait)]
+#![feature(raw_identifiers)]
 
 fn test_if() {
     r#if true { } //~ ERROR found `true`

src/test/ui/raw-literal-keywords.stderr

@@ -1,17 +1,17 @@
 error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `true`
-  --> $DIR/raw-literal-keywords.rs:16:10
+  --> $DIR/raw-literal-keywords.rs:17:10
    |
 LL |     r#if true { } //~ ERROR found `true`
    |          ^^^^ expected one of 8 possible tokens here
 
 error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `Test`
-  --> $DIR/raw-literal-keywords.rs:20:14
+  --> $DIR/raw-literal-keywords.rs:21:14
    |
 LL |     r#struct Test; //~ ERROR found `Test`
    |              ^^^^ expected one of 8 possible tokens here
 
 error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `Test`
-  --> $DIR/raw-literal-keywords.rs:24:13
+  --> $DIR/raw-literal-keywords.rs:25:13
    |
 LL |     r#union Test; //~ ERROR found `Test`
    |             ^^^^ expected one of 8 possible tokens here

src/test/ui/raw-literal-self.rs

@@ -10,6 +10,8 @@
 
 // compile-flags: -Z parse-only
 
+#![feature(raw_identifiers)]
+
 fn self_test(r#self: u32) {
     //~^ ERROR `r#self` is not currently supported.
 }

src/test/ui/raw-literal-self.stderr

@@ -1,5 +1,5 @@
 error: `r#self` is not currently supported.
-  --> $DIR/raw-literal-self.rs:13:14
+  --> $DIR/raw-literal-self.rs:15:14
    |
 LL | fn self_test(r#self: u32) {
    |              ^^^^^^