[−][src]Trait rustc_errors::emitter::Emitter
Emitter trait for emitting errors.
Required methods
fn emit_diagnostic(&mut self, db: &DiagnosticBuilder)
Emit a structured diagnostic.
Provided methods
fn emit_artifact_notification(&mut self, _path: &Path, _artifact_type: &str)
Emit a notification that an artifact has been output. This is currently only supported for the JSON format, other formats can, and will, simply ignore it.
fn should_show_explain(&self) -> bool
Checks if should show explanations about "rustc --explain"
fn primary_span_formatted<'a>(
&mut self,
db: &'a DiagnosticBuilder
) -> (MultiSpan, &'a [CodeSuggestion])
&mut self,
db: &'a DiagnosticBuilder
) -> (MultiSpan, &'a [CodeSuggestion])
Formats the substitutions of the primary_span
The are a lot of conditions to this method, but in short:
-
If the current
Diagnostic
has only one visibleCodeSuggestion
, we format thehelp
suggestion depending on the content of the substitutions. In that case, we return the modified span only. -
If the current
Diagnostic
has multiple suggestions, we return the originalprimary_span
and the original suggestions.
Implementors
impl Emitter for AnnotateSnippetEmitterWriter
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fn emit_diagnostic(&mut self, db: &DiagnosticBuilder)
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The entry point for the diagnostics generation