diff options
Diffstat (limited to 'compiler/rustc_errors/src/diagnostic.rs')
| -rw-r--r-- | compiler/rustc_errors/src/diagnostic.rs | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/compiler/rustc_errors/src/diagnostic.rs b/compiler/rustc_errors/src/diagnostic.rs index a96e317df..470f318eb 100644 --- a/compiler/rustc_errors/src/diagnostic.rs +++ b/compiler/rustc_errors/src/diagnostic.rs @@ -151,7 +151,12 @@ impl fmt::Display for DiagnosticLocation { #[derive(Clone, Debug, PartialEq, Eq, Hash, Encodable, Decodable)] pub enum DiagnosticId { Error(String), - Lint { name: String, has_future_breakage: bool, is_force_warn: bool }, + Lint { + name: String, + /// Indicates whether this lint should show up in cargo's future breakage report. + has_future_breakage: bool, + is_force_warn: bool, + }, } /// A "sub"-diagnostic attached to a parent diagnostic. @@ -270,6 +275,7 @@ impl Diagnostic { | Level::Note | Level::OnceNote | Level::Help + | Level::OnceHelp | Level::Allow | Level::Expect(_) => false, } @@ -300,6 +306,7 @@ impl Diagnostic { } } + /// Indicates whether this diagnostic should show up in cargo's future breakage report. pub fn has_future_breakage(&self) -> bool { match self.code { Some(DiagnosticId::Lint { has_future_breakage, .. }) => has_future_breakage, @@ -532,6 +539,13 @@ impl Diagnostic { self } + /// Prints the span with a help above it. + /// This is like [`Diagnostic::help()`], but it gets its own span. + pub fn help_once(&mut self, msg: impl Into<SubdiagnosticMessage>) -> &mut Self { + self.sub(Level::OnceHelp, msg, MultiSpan::new(), None); + self + } + /// Add a help message attached to this diagnostic with a customizable highlighted message. pub fn highlighted_help(&mut self, msg: Vec<(String, Style)>) -> &mut Self { self.sub_with_highlights(Level::Help, msg, MultiSpan::new(), None); |