pub(crate) struct HandlerInner {
Show 18 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<dyn Emitter + Send>, pub(crate) delayed_span_bugs: Vec<Diagnostic>, 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<u128>, 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>,
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.


flags: HandlerFlagslint_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: usizededuplicated_err_count: usizeemitter: Box<dyn Emitter + Send>delayed_span_bugs: Vec<Diagnostic>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

emitted_diagnostics: FxHashSet<u128>

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 Diagnostics store a LintExpectationId as part of the lint level. LintExpectationIds created early during the compilation (before HirIds 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 Diagnostics 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 LintExpectationIds that have been marked as fulfilled this way.


Emit all stashed diagnostics.

Emit an error; level should be Error or Fatal.

Trait Implementations

Executes the destructor for this type. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.


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: 384 bytes