Struct rustc_errors::Handler

pub struct Handler {
    pub flags: HandlerFlags,
    // some fields omitted
}

A handler deals with errors; certain errors (fatal, bug, unimpl) may cause immediate exit, others log errors for later reporting.

Fields

flags: HandlerFlags

Methods

impl Handler

pub fn with_tty_emitter(     color_config: ColorConfig,     can_emit_warnings: bool,     treat_err_as_bug: bool,     cm: Option<Lrc<SourceMapperDyn>> ) -> Handler

pub fn with_tty_emitter_and_flags(     color_config: ColorConfig,     cm: Option<Lrc<SourceMapperDyn>>,     flags: HandlerFlags ) -> Handler

pub fn with_emitter(     can_emit_warnings: bool,     treat_err_as_bug: bool,     e: Box<dyn Emitter + Send> ) -> Handler

pub fn with_emitter_and_flags(     e: Box<dyn Emitter + Send>,     flags: HandlerFlags ) -> Handler

pub fn set_continue_after_error(&self, continue_after_error: bool)

pub fn reset_err_count(&self)

Resets the diagnostic error count as well as the cached emitted diagnostics.

NOTE: DO NOT call this function from rustc. It is only meant to be called from external tools that want to reuse a Parser cleaning the previously emitted diagnostics as well as the overall count of emitted error diagnostics.

pub fn struct_dummy<'a>(&'a self) -> DiagnosticBuilder<'a>

pub fn struct_span_warn<'a, S: Into<MultiSpan>>(     &'a self,     sp: S,     msg: &str ) -> DiagnosticBuilder<'a>

pub fn struct_span_warn_with_code<'a, S: Into<MultiSpan>>(     &'a self,     sp: S,     msg: &str,     code: DiagnosticId ) -> DiagnosticBuilder<'a>

pub fn struct_warn<'a>(&'a self, msg: &str) -> DiagnosticBuilder<'a>

pub fn struct_span_err<'a, S: Into<MultiSpan>>(     &'a self,     sp: S,     msg: &str ) -> DiagnosticBuilder<'a>

pub fn struct_span_err_with_code<'a, S: Into<MultiSpan>>(     &'a self,     sp: S,     msg: &str,     code: DiagnosticId ) -> DiagnosticBuilder<'a>

pub fn struct_err<'a>(&'a self, msg: &str) -> DiagnosticBuilder<'a>

pub fn struct_err_with_code<'a>(     &'a self,     msg: &str,     code: DiagnosticId ) -> DiagnosticBuilder<'a>

pub fn struct_span_fatal<'a, S: Into<MultiSpan>>(     &'a self,     sp: S,     msg: &str ) -> DiagnosticBuilder<'a>

pub fn struct_span_fatal_with_code<'a, S: Into<MultiSpan>>(     &'a self,     sp: S,     msg: &str,     code: DiagnosticId ) -> DiagnosticBuilder<'a>

pub fn struct_fatal<'a>(&'a self, msg: &str) -> DiagnosticBuilder<'a>

pub fn cancel(&self, err: &mut DiagnosticBuilder)

pub fn span_fatal<S: Into<MultiSpan>>(&self, sp: S, msg: &str) -> FatalError

pub fn span_fatal_with_code<S: Into<MultiSpan>>(     &self,     sp: S,     msg: &str,     code: DiagnosticId ) -> FatalError

pub fn span_err<S: Into<MultiSpan>>(&self, sp: S, msg: &str)

pub fn mut_span_err<'a, S: Into<MultiSpan>>(     &'a self,     sp: S,     msg: &str ) -> DiagnosticBuilder<'a>

pub fn span_err_with_code<S: Into<MultiSpan>>(     &self,     sp: S,     msg: &str,     code: DiagnosticId )

pub fn span_warn<S: Into<MultiSpan>>(&self, sp: S, msg: &str)

pub fn span_warn_with_code<S: Into<MultiSpan>>(     &self,     sp: S,     msg: &str,     code: DiagnosticId )

pub fn span_bug<S: Into<MultiSpan>>(&self, sp: S, msg: &str) -> !

pub fn delay_span_bug<S: Into<MultiSpan>>(&self, sp: S, msg: &str)

pub fn span_bug_no_panic<S: Into<MultiSpan>>(&self, sp: S, msg: &str)

pub fn span_note_without_error<S: Into<MultiSpan>>(&self, sp: S, msg: &str)

pub fn span_note_diag<'a>(     &'a self,     sp: Span,     msg: &str ) -> DiagnosticBuilder<'a>

pub fn span_unimpl<S: Into<MultiSpan>>(&self, sp: S, msg: &str) -> !

pub fn failure(&self, msg: &str)

pub fn fatal(&self, msg: &str) -> FatalError

pub fn err(&self, msg: &str)

pub fn warn(&self, msg: &str)

pub fn note_without_error(&self, msg: &str)

pub fn bug(&self, msg: &str) -> !

pub fn unimpl(&self, msg: &str) -> !

pub fn err_count(&self) -> usize

pub fn has_errors(&self) -> bool

pub fn print_error_count(&self)

pub fn abort_if_errors(&self)

pub fn emit(&self, msp: &MultiSpan, msg: &str, lvl: Level)

pub fn emit_with_code(     &self,     msp: &MultiSpan,     msg: &str,     code: DiagnosticId,     lvl: Level )

pub fn must_teach(&self, code: &DiagnosticId) -> bool

true if we haven't taught a diagnostic with this code already. The caller must then teach the user about such a diagnostic.

Used to suppress emitting the same error multiple times with extended explanation when calling -Zteach.

pub fn force_print_db(&self, db: DiagnosticBuilder)

Trait Implementations

impl Drop for Handler

fn drop(&mut self)

Executes the destructor for this type.