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TableKey

drizzle_core::scope

Struct TableKey 

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pub struct TableKey<Name, Table>(/* private fields */);
Expand description

Key of a table or view: its SQL name spelled as a type-level list of nibbles (see name), plus the Rust type for error messages.

Rust’s trait system cannot tell that two different types are not equal, but it can compare two nibble lists digit by digit. Comparing by name is what lets the lookup skip non-matching tables.

Trait Implementations§

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impl<Name, Table> Clone for TableKey<Name, Table>

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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<Name, Table> Copy for TableKey<Name, Table>

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impl<Name, Table> Debug for TableKey<Name, Table>

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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<Name, Table> Default for TableKey<Name, Table>

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<Name, Table> Freeze for TableKey<Name, Table>
where PhantomData<(Name, Table)>: Freeze,

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impl<Name, Table> RefUnwindSafe for TableKey<Name, Table>
where PhantomData<(Name, Table)>: RefUnwindSafe,

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impl<Name, Table> Send for TableKey<Name, Table>
where PhantomData<(Name, Table)>: Send,

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impl<Name, Table> Sync for TableKey<Name, Table>
where PhantomData<(Name, Table)>: Sync,

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impl<Name, Table> Unpin for TableKey<Name, Table>
where PhantomData<(Name, Table)>: Unpin,

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impl<Name, Table> UnsafeUnpin for TableKey<Name, Table>
where PhantomData<(Name, Table)>: UnsafeUnpin,

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impl<Name, Table> UnwindSafe for TableKey<Name, Table>
where PhantomData<(Name, Table)>: 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<Joined, From> JoinKey<From, JoinReverse> for Joined
where From: Joinable<Joined> + ?Sized,

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fn pairs() -> &'static [(&'static str, &'static str)]

(joined_column, from_column) pairs the ON condition matches, in key order, read through Self::pair.
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fn pair(pair: &(&'static str, &'static str)) -> (&'static str, &'static str)

The (joined_column, from_column) names of pair.
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impl<List> ListIncludes<Nil, ()> for List

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impl<Mk> MarkerAggValidFor<()> for Mk

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impl<Name, Table, Scope> ScopeContains<TableKey<Name, Table>, ScopeFound> for Scope
where Scope: FindTable<Table>,

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type Nullable = <Scope as FindTable<Table>>::Nullable

Null when the found source is on the nullable side of an outer join.
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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