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drizzle_core::scope

Struct Src 

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pub struct Src<T>(/* private fields */);
Expand description

Sources-tree leaf: the expression reads a column of the source T (a ScopeEntry).

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impl<T> Clone for Src<T>

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl<T> Copy for Src<T>

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impl<T> Debug for Src<T>

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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<T> Default for Src<T>

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<Scope, T, Witness> SourcesIn<Scope, Witness> for Src<T>
where T: ScopeEntry, Scope: ScopeContains<T::Key, Witness>,

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type Nullable = <Scope as ScopeContains<<T as ScopeEntry>::Key, Witness>>::Nullable

Null when an outer join can make the expression NULL even though its declared nullability says otherwise.

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impl<T> Freeze for Src<T>
where PhantomData<T>: Freeze,

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impl<T> RefUnwindSafe for Src<T>
where PhantomData<T>: RefUnwindSafe,

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impl<T> Send for Src<T>
where PhantomData<T>: Send,

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impl<T> Sync for Src<T>
where PhantomData<T>: Sync,

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impl<T> Unpin for Src<T>
where PhantomData<T>: Unpin,

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impl<T> UnsafeUnpin for Src<T>
where PhantomData<T>: UnsafeUnpin,

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impl<T> UnwindSafe for Src<T>
where PhantomData<T>: UnwindSafe,

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, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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 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<List> ListIncludes<Nil, ()> for List

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impl<Mk> MarkerAggValidFor<()> for Mk

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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 = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

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> TypeEq<T> for T