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emit feature help in cheat mode

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This commit is contained in:
Tim Neumann 2016-09-24 19:28:46 +02:00
parent ad81f11b01
commit 0dc2a95f1e
1 changed files with 5 additions and 6 deletions
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11
src/libsyntax/feature_gate.rs
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@ -804,13 +804,12 @@ pub fn emit_feature_err(sess: &ParseSess, feature: &str, span: Span, issue: Gate
};
// #23973: do not suggest `#![feature(...)]` if we are in beta/stable
if option_env!("CFG_DISABLE_UNSTABLE_FEATURES").is_some() {
err.emit();
return;
if sess.unstable_features.is_nightly_build() {
err.help(&format!("add #![feature({})] to the \
crate attributes to enable",
feature));
}
err.help(&format!("add #![feature({})] to the \
crate attributes to enable",
feature));
err.emit();
}