Enum rustc_hir::hir::FnRetTy

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pub enum FnRetTy<'hir> {
    DefaultReturn(Span),
    Return(&'hir Ty<'hir>),
}

Variants§

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DefaultReturn(Span)

Return type is not specified.

Functions default to () and closures default to inference. Span points to where return type would be inserted.

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Return(&'hir Ty<'hir>)

Everything else.

Implementations§

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impl FnRetTy<'_>

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pub fn span(&self) -> Span

Trait Implementations§

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impl<'hir> Debug for FnRetTy<'hir>

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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<'hir, __CTX> HashStable<__CTX> for FnRetTy<'hir>where __CTX: HashStableContext,

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fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

Auto Trait Implementations§

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impl<'hir> RefUnwindSafe for FnRetTy<'hir>

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impl<'hir> !Send for FnRetTy<'hir>

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impl<'hir> !Sync for FnRetTy<'hir>

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impl<'hir> Unpin for FnRetTy<'hir>

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impl<'hir> UnwindSafe for FnRetTy<'hir>

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

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

const: unstable · source§

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

const: unstable · source§

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, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

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 Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

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: 16 bytes

Size for each variant:

  • DefaultReturn: 8 bytes
  • Return: 12 bytes