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Macros20NormalizedSyntaxContext

rustc_resolve::hygiene

Struct Macros20NormalizedSyntaxContext 

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pub(crate) struct Macros20NormalizedSyntaxContext(SyntaxContext);
Expand description

A newtype around SyntaxContext that can only keep contexts produced by SyntaxContext::normalize_to_macros_2_0.

Tuple Fields§

§0: SyntaxContext

Implementations§

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impl Macros20NormalizedSyntaxContext

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pub(crate) fn new(ctxt: SyntaxContext) -> Macros20NormalizedSyntaxContext

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pub(crate) fn new_adjusted( ctxt: SyntaxContext, expn_id: ExpnId, ) -> (Macros20NormalizedSyntaxContext, Option<ExpnId>)

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pub(crate) fn new_unchecked( ctxt: SyntaxContext, ) -> Macros20NormalizedSyntaxContext

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pub(crate) fn update_unchecked<R>( &mut self, f: impl FnOnce(&mut SyntaxContext) -> R, ) -> R

The passed closure must preserve the context’s normalized-ness.

Methods from Deref<Target = SyntaxContext>§

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pub fn is_root(self) -> bool

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pub fn apply_mark( self, expn_id: ExpnId, transparency: Transparency, ) -> SyntaxContext

Extend a syntax context with a given expansion and transparency.

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pub fn marks(self) -> Vec<(ExpnId, Transparency)>

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pub fn hygienic_eq(self, other: SyntaxContext, expn_id: ExpnId) -> bool

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pub fn normalize_to_macros_2_0(self) -> SyntaxContext

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pub fn normalize_to_macro_rules(self) -> SyntaxContext

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pub fn outer_expn(self) -> ExpnId

See SyntaxContextData::outer_expn

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pub fn outer_expn_data(self) -> ExpnData

ctxt.outer_expn_data() is equivalent to but faster than ctxt.outer_expn().expn_data().

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pub fn edition(self) -> Edition

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pub fn in_external_macro(self, sm: &SourceMap) -> bool

Returns whether this context originates in a foreign crate’s external macro.

This is used to test whether a lint should not even begin to figure out whether it should be reported on the current node.

Trait Implementations§

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impl Clone for Macros20NormalizedSyntaxContext

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Copy for Macros20NormalizedSyntaxContext

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impl Debug for Macros20NormalizedSyntaxContext

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Deref for Macros20NormalizedSyntaxContext

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type Target = SyntaxContext

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl Eq for Macros20NormalizedSyntaxContext

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impl Hash for Macros20NormalizedSyntaxContext

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for Macros20NormalizedSyntaxContext

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fn eq(&self, other: &Self) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for Macros20NormalizedSyntaxContext

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<T> AnyEq for T
where T: Any + PartialEq,

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fn equals(&self, other: &(dyn Any + 'static)) -> bool

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fn as_any(&self) -> &(dyn Any + 'static)

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

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

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fn allocate_from_iter( arena: &'tcx Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'tcx 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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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> DynClone for T
where T: Clone,

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fn __clone_box(&self, _: Private) -> *mut ()

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impl<Q, K> Equivalent<K> for Q
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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> ErasedDestructor for T
where T: 'static,

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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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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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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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Argument conversion from Self to K. This should always be a very cheap conversion, e.g. LocalDefId::to_def_id.
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type Error = !

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const ALIGN: usize

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type Init = T

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

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unsafe fn deref<'a>(ptr: usize) -> &'a T

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

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impl<P, T> Receiver for P
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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
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Should always be Self
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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.

Size: 4 bytes