Struct rustc_errors::Handler
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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
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pub fn with_tty_emitter(
color_config: ColorConfig,
can_emit_warnings: bool,
treat_err_as_bug: bool,
cm: Option<Lrc<CodeMapper>>
) -> Handler
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color_config: ColorConfig,
can_emit_warnings: bool,
treat_err_as_bug: bool,
cm: Option<Lrc<CodeMapper>>
) -> Handler
pub fn with_tty_emitter_and_flags(
color_config: ColorConfig,
cm: Option<Lrc<CodeMapper>>,
flags: HandlerFlags
) -> Handler
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color_config: ColorConfig,
cm: Option<Lrc<CodeMapper>>,
flags: HandlerFlags
) -> Handler
pub fn with_emitter(
can_emit_warnings: bool,
treat_err_as_bug: bool,
e: Box<Emitter>
) -> Handler
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can_emit_warnings: bool,
treat_err_as_bug: bool,
e: Box<Emitter>
) -> Handler
pub fn with_emitter_and_flags(e: Box<Emitter>, flags: HandlerFlags) -> Handler
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pub fn set_continue_after_error(&self, continue_after_error: bool)
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pub fn reset_err_count(&self)
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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>
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pub fn struct_span_warn<'a, S: Into<MultiSpan>>(
&'a self,
sp: S,
msg: &str
) -> DiagnosticBuilder<'a>
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&'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>
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&'a self,
sp: S,
msg: &str,
code: DiagnosticId
) -> DiagnosticBuilder<'a>
pub fn struct_warn<'a>(&'a self, msg: &str) -> DiagnosticBuilder<'a>
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pub fn struct_span_err<'a, S: Into<MultiSpan>>(
&'a self,
sp: S,
msg: &str
) -> DiagnosticBuilder<'a>
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&'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>
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&'a self,
sp: S,
msg: &str,
code: DiagnosticId
) -> DiagnosticBuilder<'a>
pub fn struct_err<'a>(&'a self, msg: &str) -> DiagnosticBuilder<'a>
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pub fn struct_err_with_code<'a>(
&'a self,
msg: &str,
code: DiagnosticId
) -> DiagnosticBuilder<'a>
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&'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>
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&'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>
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&'a self,
sp: S,
msg: &str,
code: DiagnosticId
) -> DiagnosticBuilder<'a>
pub fn struct_fatal<'a>(&'a self, msg: &str) -> DiagnosticBuilder<'a>
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pub fn cancel(&self, err: &mut DiagnosticBuilder)
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pub fn span_fatal<S: Into<MultiSpan>>(&self, sp: S, msg: &str) -> FatalError
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pub fn span_fatal_with_code<S: Into<MultiSpan>>(
&self,
sp: S,
msg: &str,
code: DiagnosticId
) -> FatalError
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&self,
sp: S,
msg: &str,
code: DiagnosticId
) -> FatalError
pub fn span_err<S: Into<MultiSpan>>(&self, sp: S, msg: &str)
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pub fn mut_span_err<'a, S: Into<MultiSpan>>(
&'a self,
sp: S,
msg: &str
) -> DiagnosticBuilder<'a>
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&'a self,
sp: S,
msg: &str
) -> DiagnosticBuilder<'a>
pub fn span_err_with_code<S: Into<MultiSpan>>(
&self,
sp: S,
msg: &str,
code: DiagnosticId
)
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&self,
sp: S,
msg: &str,
code: DiagnosticId
)
pub fn span_warn<S: Into<MultiSpan>>(&self, sp: S, msg: &str)
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pub fn span_warn_with_code<S: Into<MultiSpan>>(
&self,
sp: S,
msg: &str,
code: DiagnosticId
)
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&self,
sp: S,
msg: &str,
code: DiagnosticId
)
pub fn span_bug<S: Into<MultiSpan>>(&self, sp: S, msg: &str) -> !
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pub fn delay_span_bug<S: Into<MultiSpan>>(&self, sp: S, msg: &str)
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pub fn span_bug_no_panic<S: Into<MultiSpan>>(&self, sp: S, msg: &str)
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pub fn span_note_without_error<S: Into<MultiSpan>>(&self, sp: S, msg: &str)
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pub fn span_note_diag<'a>(
&'a self,
sp: Span,
msg: &str
) -> DiagnosticBuilder<'a>
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&'a self,
sp: Span,
msg: &str
) -> DiagnosticBuilder<'a>
pub fn span_unimpl<S: Into<MultiSpan>>(&self, sp: S, msg: &str) -> !
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pub fn failure(&self, msg: &str)
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pub fn fatal(&self, msg: &str) -> FatalError
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pub fn err(&self, msg: &str)
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pub fn warn(&self, msg: &str)
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pub fn note_without_error(&self, msg: &str)
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pub fn bug(&self, msg: &str) -> !
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pub fn unimpl(&self, msg: &str) -> !
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pub fn err_count(&self) -> usize
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pub fn has_errors(&self) -> bool
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pub fn abort_if_errors(&self)
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pub fn emit(&self, msp: &MultiSpan, msg: &str, lvl: Level)
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pub fn emit_with_code(
&self,
msp: &MultiSpan,
msg: &str,
code: DiagnosticId,
lvl: Level
)
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&self,
msp: &MultiSpan,
msg: &str,
code: DiagnosticId,
lvl: Level
)
pub fn track_diagnostics<F, R>(&self, f: F) -> (R, Vec<Diagnostic>) where
F: FnOnce() -> R,
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F: FnOnce() -> R,
pub fn code_emitted(&self, code: &DiagnosticId) -> bool
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true
if a diagnostic with this code has already been emitted in this handler.
Used to suppress emitting the same error multiple times with extended explanation when
calling -Zteach
.