pub struct UnusedBraces;

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Trait Implementations§

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impl Clone for UnusedBraces

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fn clone(&self) -> UnusedBraces

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl EarlyLintPass for UnusedBraces

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fn check_stmt(&mut self, cx: &EarlyContext<'_>, s: &Stmt)

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fn check_expr(&mut self, cx: &EarlyContext<'_>, e: &Expr)

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fn check_generic_arg(&mut self, cx: &EarlyContext<'_>, arg: &GenericArg)

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fn check_variant(&mut self, cx: &EarlyContext<'_>, v: &Variant)

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fn check_ty(&mut self, cx: &EarlyContext<'_>, ty: &Ty)

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fn check_item(&mut self, cx: &EarlyContext<'_>, item: &Item)

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fn check_param(&mut self, _: &EarlyContext<'_>, _: &Param)

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fn check_ident(&mut self, _: &EarlyContext<'_>, _: Ident)

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fn check_crate(&mut self, _: &EarlyContext<'_>, _: &Crate)

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fn check_crate_post(&mut self, _: &EarlyContext<'_>, _: &Crate)

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fn check_item_post(&mut self, _: &EarlyContext<'_>, _: &Item)

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fn check_local(&mut self, _: &EarlyContext<'_>, _: &Local)

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fn check_block(&mut self, _: &EarlyContext<'_>, _: &Block)

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fn check_arm(&mut self, _: &EarlyContext<'_>, _: &Arm)

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fn check_pat(&mut self, _: &EarlyContext<'_>, _: &Pat)

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fn check_pat_post(&mut self, _: &EarlyContext<'_>, _: &Pat)

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fn check_expr_post(&mut self, _: &EarlyContext<'_>, _: &Expr)

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fn check_generic_param(&mut self, _: &EarlyContext<'_>, _: &GenericParam)

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fn check_generics(&mut self, _: &EarlyContext<'_>, _: &Generics)

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fn check_poly_trait_ref(&mut self, _: &EarlyContext<'_>, _: &PolyTraitRef)

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fn check_fn(&mut self, _: &EarlyContext<'_>, _: FnKind<'_>, _: Span, _: NodeId)

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fn check_trait_item(&mut self, _: &EarlyContext<'_>, _: &AssocItem)

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fn check_impl_item(&mut self, _: &EarlyContext<'_>, _: &AssocItem)

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fn check_attribute(&mut self, _: &EarlyContext<'_>, _: &Attribute)

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fn check_mac_def(&mut self, _: &EarlyContext<'_>, _: &MacroDef)

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fn check_mac(&mut self, _: &EarlyContext<'_>, _: &MacCall)

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fn enter_lint_attrs(&mut self, _: &EarlyContext<'_>, _: &[Attribute])

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fn exit_lint_attrs(&mut self, _: &EarlyContext<'_>, _: &[Attribute])

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fn enter_where_predicate(&mut self, _: &EarlyContext<'_>, _: &WherePredicate)

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fn exit_where_predicate(&mut self, _: &EarlyContext<'_>, _: &WherePredicate)

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impl LintPass for UnusedBraces

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fn name(&self) -> &'static str

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impl UnusedDelimLint for UnusedBraces

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const DELIM_STR: &'static str = "braces"

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const LINT_EXPR_IN_PATTERN_MATCHING_CTX: bool = false

Due to ref pattern, there can be a difference between using { expr } and expr in pattern-matching contexts. This means that we should only lint unused_parens and not unused_braces in this case. Read more
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fn lint(&self) -> &'static Lint

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fn check_unused_delims_expr( &self, cx: &EarlyContext<'_>, value: &Expr, ctx: UnusedDelimsCtx, followed_by_block: bool, left_pos: Option<BytePos>, right_pos: Option<BytePos>, is_kw: bool )

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fn is_expr_delims_necessary( inner: &Expr, ctx: UnusedDelimsCtx, followed_by_block: bool ) -> bool

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fn emit_unused_delims_expr( &self, cx: &EarlyContext<'_>, value: &Expr, ctx: UnusedDelimsCtx, left_pos: Option<BytePos>, right_pos: Option<BytePos>, is_kw: bool )

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fn emit_unused_delims( &self, cx: &EarlyContext<'_>, value_span: Span, spans: Option<(Span, Span)>, msg: &str, keep_space: (bool, bool), is_kw: bool )

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fn check_expr(&mut self, cx: &EarlyContext<'_>, e: &Expr)

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fn check_stmt(&mut self, cx: &EarlyContext<'_>, s: &Stmt)

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fn check_item(&mut self, cx: &EarlyContext<'_>, item: &Item)

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impl Copy for UnusedBraces

Auto Trait 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<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T
where T: Copy,

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fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T

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fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T> ) -> &'a mut [T]

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impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T
where T: Copy,

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fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T

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fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T> ) -> &'a mut [T]

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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<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> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<'tcx, T> ToPredicate<'tcx, T> for T

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fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> T

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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<V, T> VZip<V> for 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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fn with_current_subscriber(self) -> WithDispatch<Self>

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,

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impl<T> MaybeSendSync for T

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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.

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