span,
"`async` is a keyword in the 2018 edition",
);
- lint.span_suggestion_with_applicability(
- span,
- "you can use a raw identifier to stay compatible",
- "r#async".to_string(),
- Applicability::MachineApplicable,
- );
+
+ // Don't suggest about raw identifiers if the feature isn't active
+ if cx.sess.features_untracked().raw_identifiers {
+ lint.span_suggestion_with_applicability(
+ span,
+ "you can use a raw identifier to stay compatible",
+ "r#async".to_string(),
+ Applicability::MachineApplicable,
+ );
+ }
lint.emit()
}
}
(active, underscore_imports, "1.26.0", Some(48216), None),
// Allows keywords to be escaped for use as identifiers
- (active, raw_identifiers, "1.26.0", Some(48589), None),
+ (active, raw_identifiers, "1.26.0", Some(48589), Some(Edition::Edition2018)),
// Allows macro invocations in `extern {}` blocks
(active, macros_in_extern, "1.27.0", Some(49476), None),
--- /dev/null
+// 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.
+
+// compile-flags: --edition 2015
+
+#![deny(rust_2018_compatibility)]
+
+// Don't make a suggestion for a raw identifer replacement unless raw
+// identifiers are enabled.
+
+fn main() {
+ let async = 3; //~ ERROR: is a keyword
+ //~^ WARN previously accepted
+}
--- /dev/null
+error: `async` is a keyword in the 2018 edition
+ --> $DIR/async-ident-allowed.rs:19:9
+ |
+LL | let async = 3; //~ ERROR: is a keyword
+ | ^^^^^
+ |
+note: lint level defined here
+ --> $DIR/async-ident-allowed.rs:13:9
+ |
+LL | #![deny(rust_2018_compatibility)]
+ | ^^^^^^^^^^^^^^^^^^^^^^^
+ = note: #[deny(async_idents)] implied by #[deny(rust_2018_compatibility)]
+ = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
+ = note: for more information, see issue #49716 <https://github.com/rust-lang/rust/issues/49716>
+
+error: aborting due to previous error
+