Enum rustc_expand::base::ExpandResult

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pub enum ExpandResult<T, U> {
    Ready(T),
    Retry(U),
}
Expand description

Result of an expansion that may need to be retried. Consider using this for non-MultiItemModifier expanders as well.

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Ready(T)

Expansion produced a result (possibly dummy).

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Retry(U)

Expansion could not produce a result and needs to be retried.

Auto Trait Implementations§

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impl<T, U> RefUnwindSafe for ExpandResult<T, U>where T: RefUnwindSafe, U: RefUnwindSafe,

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impl<T, U> Send for ExpandResult<T, U>where T: Send, U: Send,

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impl<T, U> Sync for ExpandResult<T, U>where T: Sync, U: Sync,

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impl<T, U> Unpin for ExpandResult<T, U>where T: Unpin, U: Unpin,

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impl<T, U> UnwindSafe for ExpandResult<T, U>where T: UnwindSafe, U: UnwindSafe,

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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: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.