#[repr(C)]
pub struct GenericErrorResult<E> { pub mErrorValue: E, pub _phantom_0: PhantomData<UnsafeCell<E>>, }
Expand description

A type that auto-converts to an error Result. This is like a Result without a success type. It’s the best return type for functions that always return an error–functions designed to build and populate error objects. It’s also useful in error-handling macros; see MOZ_TRY for an example.

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§mErrorValue: E§_phantom_0: PhantomData<UnsafeCell<E>>

Trait Implementations§

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impl<E> Clone for GenericErrorResult<E>where E: Clone,

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fn clone(&self) -> GenericErrorResult<E>

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<E> Debug for GenericErrorResult<E>where E: Debug,

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

Formats the value using the given formatter. Read more
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impl<E> PartialEq<GenericErrorResult<E>> for GenericErrorResult<E>where E: PartialEq<E>,

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fn eq(&self, other: &GenericErrorResult<E>) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<E> Copy for GenericErrorResult<E>where E: Copy,

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impl<E> StructuralPartialEq for GenericErrorResult<E>

Auto Trait Implementations§

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impl<E> !RefUnwindSafe for GenericErrorResult<E>

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impl<E> Send for GenericErrorResult<E>where E: Send,

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impl<E> !Sync for GenericErrorResult<E>

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impl<E> Unpin for GenericErrorResult<E>where E: Unpin,

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impl<E> UnwindSafe for GenericErrorResult<E>where E: UnwindSafe,

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> ToOwned for Twhere 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<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.