gix_object::find

Struct Never

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pub struct Never;
Expand description

An implementation of all traits that never fails, but also never finds anything.

Trait Implementations§

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impl Clone for Never

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fn clone(&self) -> Never

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 Debug for Never

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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 Exists for Never

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fn exists(&self, _id: &oid) -> bool

Returns true if the object exists in the database.
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impl Find for Never

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fn try_find<'a>( &self, _id: &oid, _buffer: &'a mut Vec<u8>, ) -> Result<Option<Data<'a>>, Error>

Find an object matching id in the database while placing its raw, possibly encoded data into buffer. Read more
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impl Header for Never

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fn try_header(&self, _id: &oid) -> Result<Option<Header>, Error>

Find the header of the object matching id in the database. Read more
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impl Copy for Never

Auto Trait Implementations§

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impl Freeze for Never

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impl RefUnwindSafe for Never

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impl Send for Never

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impl Sync for Never

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impl Unpin for Never

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impl UnwindSafe for Never

Blanket Implementations§

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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> 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, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> FindExt for T
where T: Find + ?Sized,

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fn find<'a>(&self, id: &oid, buffer: &'a mut Vec<u8>) -> Result<Data<'a>, Error>

Like try_find(…), but flattens the Result<Option<_>> into a single Result making a non-existing object an error.
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fn find_blob<'a>( &self, id: &oid, buffer: &'a mut Vec<u8>, ) -> Result<BlobRef<'a>, Error>

Like find(…), but flattens the Result<Option<_>> into a single Result making a non-existing object an error while returning the desired object type.
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fn find_tree<'a>( &self, id: &oid, buffer: &'a mut Vec<u8>, ) -> Result<TreeRef<'a>, Error>

Like find(…), but flattens the Result<Option<_>> into a single Result making a non-existing object an error while returning the desired object type.
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fn find_commit<'a>( &self, id: &oid, buffer: &'a mut Vec<u8>, ) -> Result<CommitRef<'a>, Error>

Like find(…), but flattens the Result<Option<_>> into a single Result making a non-existing object an error while returning the desired object type.
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fn find_tag<'a>( &self, id: &oid, buffer: &'a mut Vec<u8>, ) -> Result<TagRef<'a>, Error>

Like find(…), but flattens the Result<Option<_>> into a single Result making a non-existing object an error while returning the desired object type.
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fn find_commit_iter<'a>( &self, id: &oid, buffer: &'a mut Vec<u8>, ) -> Result<CommitRefIter<'a>, Error>

Like find(…), but flattens the Result<Option<_>> into a single Result making a non-existing object an error while returning the desired iterator type.
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fn find_tree_iter<'a>( &self, id: &oid, buffer: &'a mut Vec<u8>, ) -> Result<TreeRefIter<'a>, Error>

Like find(…), but flattens the Result<Option<_>> into a single Result making a non-existing object an error while returning the desired iterator type.
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fn find_tag_iter<'a>( &self, id: &oid, buffer: &'a mut Vec<u8>, ) -> Result<TagRefIter<'a>, Error>

Like find(…), but flattens the Result<Option<_>> into a single Result making a non-existing object an error while returning the desired iterator type.
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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 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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impl<T> ToOwned for T
where 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 T
where 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 T
where 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.
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impl<T> FindObjectOrHeader for T
where T: Find + Header,