Struct gix_object::find::Never

pub struct Never;

Expand description

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

Trait Implementations§

impl Clone for Never

fn clone(&self) -> Never

Returns a copy of the value. Read more

1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl Debug for Never

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

Formats the value using the given formatter. Read more

impl Exists for Never

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

Returns true if the object exists in the database.

impl Find for Never

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

impl Header for Never

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

Find the header of the object matching id in the database. Read more

impl Copy for Never

Auto Trait Implementations§

impl Freeze for Never

impl RefUnwindSafe for Never

impl Send for Never

impl Sync for Never

impl Unpin for Never

impl UnwindSafe for Never

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dst. Read more

impl<T> FindExt for T
where T: Find + ?Sized,

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.

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.

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.

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.

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.

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.

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.

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.

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T> FindObjectOrHeader for T
where T: Find + Header,