Struct rustc_lint::context::EarlyContext

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pub struct EarlyContext<'a> {
    pub builder: LintLevelsBuilder<'a, TopDown>,
    pub buffered: LintBuffer,
}
Expand description

Context for lint checking of the AST, after expansion, before lowering to HIR.

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§builder: LintLevelsBuilder<'a, TopDown>§buffered: LintBuffer

Implementations§

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impl EarlyContext<'_>

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pub fn span_lint_with_diagnostics( &self, lint: &'static Lint, span: MultiSpan, diagnostic: BuiltinLintDiag )

Emit a lint at the appropriate level, with an optional associated span and an existing diagnostic.

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impl<'a> EarlyContext<'a>

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pub(crate) fn new( sess: &'a Session, features: &'a Features, lint_added_lints: bool, lint_store: &'a LintStore, registered_tools: &'a RegisteredTools, buffered: LintBuffer ) -> EarlyContext<'a>

Trait Implementations§

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impl LintContext for EarlyContext<'_>

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fn sess(&self) -> &Session

Gets the overall compiler Session object.

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fn opt_span_lint<S: Into<MultiSpan>>( &self, lint: &'static Lint, span: Option<S>, msg: impl Into<DiagMessage>, decorate: impl for<'a, 'b> FnOnce(&'b mut Diag<'a, ()>) )

Emit a lint at the appropriate level, with an optional associated span.
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fn get_lint_level(&self, lint: &'static Lint) -> Level

This returns the lint level for the given lint at the current location.
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fn emit_span_lint<S: Into<MultiSpan>>( &self, lint: &'static Lint, span: S, decorator: impl for<'a> LintDiagnostic<'a, ()> )

Emit a lint at span from a lint struct (some type that implements LintDiagnostic, typically generated by #[derive(LintDiagnostic)]).
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fn span_lint<S: Into<MultiSpan>>( &self, lint: &'static Lint, span: S, msg: impl Into<DiagMessage>, decorate: impl for<'a, 'b> FnOnce(&'b mut Diag<'a, ()>) )

Emit a lint at the appropriate level, with an associated span.
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fn emit_lint( &self, lint: &'static Lint, decorator: impl for<'a> LintDiagnostic<'a, ()> )

Emit a lint from a lint struct (some type that implements LintDiagnostic, typically generated by #[derive(LintDiagnostic)]).
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fn lint( &self, lint: &'static Lint, msg: impl Into<DiagMessage>, decorate: impl for<'a, 'b> FnOnce(&'b mut Diag<'a, ()>) )

Emit a lint at the appropriate level, with no associated span.
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fn fulfill_expectation(&self, expectation: LintExpectationId)

This function can be used to manually fulfill an expectation. This can be used for lints which contain several spans, and should be suppressed, if either location was marked with an expectation. Read more

Auto Trait Implementations§

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impl<'a> DynSend for EarlyContext<'a>

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impl<'a> DynSync for EarlyContext<'a>

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impl<'a> Freeze for EarlyContext<'a>

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impl<'a> !RefUnwindSafe for EarlyContext<'a>

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impl<'a> !Send for EarlyContext<'a>

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impl<'a> !Sync for EarlyContext<'a>

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impl<'a> Unpin for EarlyContext<'a>

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impl<'a> !UnwindSafe for EarlyContext<'a>

Blanket Implementations§

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impl<T> Aligned for T

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const ALIGN: Alignment = _

Alignment of Self.
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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T, R> CollectAndApply<T, R> for T

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fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

Equivalent to f(&iter.collect::<Vec<_>>()).

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type Output = R

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impl<T> Filterable for T

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fn filterable( self, filter_name: &'static str ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>

Creates a filterable data provider with the given name for debugging. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<P> IntoQueryParam<P> for P

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impl<T> MaybeResult<T> for T

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type Error = !

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fn from(_: Result<T, <T as MaybeResult<T>>::Error>) -> T

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fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<I, T, U> Upcast<I, U> for T
where U: UpcastFrom<I, T>,

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fn upcast(self, interner: I) -> U

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impl<I, T> UpcastFrom<I, T> for T

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fn upcast_from(from: T, _tcx: I) -> T

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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<Tcx, T> Value<Tcx> for T
where Tcx: DepContext,

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default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed ) -> T

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<'a, T> Captures<'a> for T
where T: ?Sized,

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impl<T> ErasedDestructor for T
where T: 'static,

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: 128 bytes