enum BuiltinImplConditions<'tcx> {
    Where(Binder<'tcx, Vec<Ty<'tcx>>>),
    None,
    Ambiguous,
}
Expand description

When does the builtin impl for T: Trait apply?

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Where(Binder<'tcx, Vec<Ty<'tcx>>>)

The impl is conditional on T1, T2, ...: Trait.

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None

There is no built-in impl. There may be some other candidate (a where-clause or user-defined impl).

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Ambiguous

It is unknown whether there is an impl.

Trait Implementations§

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impl<'tcx> Debug for BuiltinImplConditions<'tcx>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<'tcx> !RefUnwindSafe for BuiltinImplConditions<'tcx>

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impl<'tcx> Send for BuiltinImplConditions<'tcx>

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impl<'tcx> Sync for BuiltinImplConditions<'tcx>

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impl<'tcx> Unpin for BuiltinImplConditions<'tcx>

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impl<'tcx> !UnwindSafe for BuiltinImplConditions<'tcx>

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,

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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 Twhere 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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere 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, 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.
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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 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.
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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: 40 bytes

Size for each variant:

  • Where: 32 bytes
  • None: 0 bytes
  • Ambiguous: 0 bytes