Struct rustc_errors::HandlerInner
source · pub(crate) struct HandlerInner {Show 19 fields
pub(crate) flags: HandlerFlags,
pub(crate) lint_err_count: usize,
pub(crate) err_count: usize,
pub(crate) warn_count: usize,
pub(crate) deduplicated_err_count: usize,
pub(crate) emitter: Box<DynEmitter>,
pub(crate) delayed_span_bugs: Vec<DelayedDiagnostic>,
pub(crate) delayed_good_path_bugs: Vec<DelayedDiagnostic>,
pub(crate) suppressed_expected_diag: bool,
pub(crate) taught_diagnostics: FxHashSet<DiagnosticId>,
pub(crate) emitted_diagnostic_codes: FxIndexSet<DiagnosticId>,
pub(crate) emitted_diagnostics: FxHashSet<Hash128>,
pub(crate) stashed_diagnostics: FxIndexMap<(Span, StashKey), Diagnostic>,
pub(crate) deduplicated_warn_count: usize,
pub(crate) future_breakage_diagnostics: Vec<Diagnostic>,
pub(crate) check_unstable_expect_diagnostics: bool,
pub(crate) unstable_expect_diagnostics: Vec<Diagnostic>,
pub(crate) fulfilled_expectations: FxHashSet<LintExpectationId>,
pub(crate) ice_file: Option<PathBuf>,
}
Expand description
This inner struct exists to keep it all behind a single lock; this is done to prevent possible deadlocks in a multi-threaded compiler, as well as inconsistent state observation.
Fields§
§flags: HandlerFlags
§lint_err_count: usize
The number of lint errors that have been emitted.
err_count: usize
The number of errors that have been emitted, including duplicates.
This is not necessarily the count that’s reported to the user once compilation ends.
warn_count: usize
§deduplicated_err_count: usize
§emitter: Box<DynEmitter>
§delayed_span_bugs: Vec<DelayedDiagnostic>
§delayed_good_path_bugs: Vec<DelayedDiagnostic>
§suppressed_expected_diag: bool
This flag indicates that an expected diagnostic was emitted and suppressed.
This is used for the delayed_good_path_bugs
check.
taught_diagnostics: FxHashSet<DiagnosticId>
This set contains the DiagnosticId
of all emitted diagnostics to avoid
emitting the same diagnostic with extended help (--teach
) twice, which
would be unnecessary repetition.
emitted_diagnostic_codes: FxIndexSet<DiagnosticId>
Used to suggest rustc –explain <error code>
emitted_diagnostics: FxHashSet<Hash128>
This set contains a hash of every diagnostic that has been emitted by this handler. These hashes is used to avoid emitting the same error twice.
stashed_diagnostics: FxIndexMap<(Span, StashKey), Diagnostic>
Stashed diagnostics emitted in one stage of the compiler that may be
stolen by other stages (e.g. to improve them and add more information).
The stashed diagnostics count towards the total error count.
When .abort_if_errors()
is called, these are also emitted.
deduplicated_warn_count: usize
The warning count, used for a recap upon finishing
future_breakage_diagnostics: Vec<Diagnostic>
§check_unstable_expect_diagnostics: bool
The Self::unstable_expect_diagnostics
should be empty when this struct is
dropped. However, it can have values if the compilation is stopped early
or is only partially executed. To avoid ICEs, like in rust#94953 we only
check if Self::unstable_expect_diagnostics
is empty, if the expectation ids
have been converted.
unstable_expect_diagnostics: Vec<Diagnostic>
Expected Diagnostic
s store a [LintExpectationId
] as part of
the lint level. [LintExpectationId
]s created early during the compilation
(before HirId
s have been defined) are not stable and can therefore not be
stored on disk. This buffer stores these diagnostics until the ID has been
replaced by a stable [LintExpectationId
]. The Diagnostic
s are the
submitted for storage and added to the list of fulfilled expectations.
fulfilled_expectations: FxHashSet<LintExpectationId>
expected diagnostic will have the level Expect
which additionally
carries the [LintExpectationId
] of the expectation that can be
marked as fulfilled. This is a collection of all [LintExpectationId
]s
that have been marked as fulfilled this way.
ice_file: Option<PathBuf>
The file where the ICE information is stored. This allows delayed_span_bug backtraces to be stored along side the main panic backtrace.
Implementations§
source§impl HandlerInner
impl HandlerInner
pub(crate) fn must_teach(&mut self, code: &DiagnosticId) -> bool
pub(crate) fn force_print_diagnostic(&mut self, db: Diagnostic)
sourcepub(crate) fn emit_stashed_diagnostics(&mut self) -> Option<ErrorGuaranteed>
pub(crate) fn emit_stashed_diagnostics(&mut self) -> Option<ErrorGuaranteed>
Emit all stashed diagnostics.
pub(crate) fn emit_diagnostic( &mut self, diagnostic: &mut Diagnostic ) -> Option<ErrorGuaranteed>
pub(crate) fn emit_artifact_notification( &mut self, path: &Path, artifact_type: &str )
pub(crate) fn emit_unused_externs( &mut self, lint_level: Level, unused_externs: &[&str] )
pub(crate) fn treat_err_as_bug(&self) -> bool
pub(crate) fn delayed_bug_count(&self) -> usize
pub(crate) fn print_error_count(&mut self, registry: &Registry)
pub(crate) fn stash(&mut self, key: (Span, StashKey), diagnostic: Diagnostic)
pub(crate) fn steal(&mut self, key: (Span, StashKey)) -> Option<Diagnostic>
pub(crate) fn err_count(&self) -> usize
pub(crate) fn has_errors(&self) -> bool
pub(crate) fn has_errors_or_lint_errors(&self) -> bool
pub(crate) fn has_errors_or_delayed_span_bugs(&self) -> bool
pub(crate) fn has_any_message(&self) -> bool
pub(crate) fn is_compilation_going_to_fail(&self) -> bool
pub(crate) fn abort_if_errors(&mut self)
pub(crate) fn span_bug( &mut self, sp: impl Into<MultiSpan>, msg: impl Into<String> ) -> !
pub(crate) fn emit_diag_at_span( &mut self, diag: Diagnostic, sp: impl Into<MultiSpan> )
sourcepub(crate) fn delay_span_bug(
&mut self,
sp: impl Into<MultiSpan>,
msg: impl Into<String>
) -> ErrorGuaranteed
pub(crate) fn delay_span_bug( &mut self, sp: impl Into<MultiSpan>, msg: impl Into<String> ) -> ErrorGuaranteed
For documentation on this, see Session::delay_span_bug
.
pub(crate) fn delay_good_path_bug(&mut self, msg: impl Into<DiagnosticMessage>)
pub(crate) fn failure(&mut self, msg: impl Into<DiagnosticMessage>)
pub(crate) fn fatal(&mut self, msg: impl Into<DiagnosticMessage>) -> FatalError
pub(crate) fn err( &mut self, msg: impl Into<DiagnosticMessage> ) -> ErrorGuaranteed
sourcepub(crate) fn emit(
&mut self,
level: Level,
msg: impl Into<DiagnosticMessage>
) -> ErrorGuaranteed
pub(crate) fn emit( &mut self, level: Level, msg: impl Into<DiagnosticMessage> ) -> ErrorGuaranteed
Emit an error; level should be Error
or Fatal
.
pub(crate) fn bug(&mut self, msg: impl Into<DiagnosticMessage>) -> !
pub(crate) fn flush_delayed( &mut self, bugs: impl IntoIterator<Item = DelayedDiagnostic>, explanation: impl Into<DiagnosticMessage> + Copy )
pub(crate) fn bump_lint_err_count(&mut self)
pub(crate) fn bump_err_count(&mut self)
pub(crate) fn bump_warn_count(&mut self)
pub(crate) fn panic_if_treat_err_as_bug(&self)
Trait Implementations§
Auto Trait Implementations§
impl !RefUnwindSafe for HandlerInner
impl !Send for HandlerInner
impl !Sync for HandlerInner
impl Unpin for HandlerInner
impl !UnwindSafe for HandlerInner
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Layout§
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.
Size: 408 bytes