[−][src]Trait rustc_ap_rustc_errors::emitter::Emitter

pub trait Emitter {
    fn emit_diagnostic(&mut self, db: &Diagnostic);

    fn emit_artifact_notification(&mut self, _path: &Path, _artifact_type: &str) { ... }

    fn should_show_explain(&self) -> bool { ... }

    fn primary_span_formatted<'a>(
        &mut self, 
        db: &'a Diagnostic
    ) -> (MultiSpan, &'a [CodeSuggestion]) { ... }

    fn fix_multispans_in_std_macros(
        &self, 
        source_map: &Option<Lrc<SourceMapperDyn>>, 
        span: &mut MultiSpan, 
        children: &mut Vec<SubDiagnostic>, 
        level: &Level, 
        backtrace: bool
    ) { ... }

    fn fix_multispan_in_std_macros(
        &self, 
        source_map: &Option<Lrc<SourceMapperDyn>>, 
        span: &mut MultiSpan, 
        always_backtrace: bool
    ) -> bool { ... }
}

Emitter trait for emitting errors.

Required methods

fn emit_diagnostic(&mut self, db: &Diagnostic)

Emit a structured diagnostic.

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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 Diagnostic
) -> (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 visible CodeSuggestion, we format the help 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 original primary_span and the original suggestions.

fn fix_multispans_in_std_macros(
    &self,
    source_map: &Option<Lrc<SourceMapperDyn>>,
    span: &mut MultiSpan,
    children: &mut Vec<SubDiagnostic>,
    level: &Level,
    backtrace: bool
)

fn fix_multispan_in_std_macros(
    &self,
    source_map: &Option<Lrc<SourceMapperDyn>>,
    span: &mut MultiSpan,
    always_backtrace: bool
) -> bool

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Implementors

impl Emitter for AnnotateSnippetEmitterWriter[src]

fn emit_diagnostic(&mut self, db: &Diagnostic)[src]

The entry point for the diagnostics generation

impl Emitter for EmitterWriter[src]

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