TypedField

iroh_db

Struct TypedField 

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pub struct TypedField<Record, Value> { /* private fields */ }
Expand description

Compile-time metadata for one strongly typed query field.

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impl<Record, Value> TypedField<Record, Value>

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pub const fn new( field_id: u32, name: &'static str, indexed: bool, ) -> TypedField<Record, Value>

Constructs generated field metadata.

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pub const fn field_id(self) -> u32

Returns the stable numeric field ID.

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pub const fn name(self) -> &'static str

Returns the declared Rust field name.

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pub const fn is_indexed(self) -> bool

Returns whether the schema materializes a secondary index.

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pub fn eq(self, value: impl Into<Value>) -> EqualityFilter<Record>
where Value: RecordKey,

Builds a type-checked equality predicate.

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pub fn lt(self, value: impl Into<Value>) -> RangeFilter<Record>
where Value: RecordKey + Ord + Send + Sync + 'static,

Builds a type-checked less-than predicate.

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pub fn le(self, value: impl Into<Value>) -> RangeFilter<Record>
where Value: RecordKey + Ord + Send + Sync + 'static,

Builds a type-checked less-than-or-equal predicate.

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pub fn gt(self, value: impl Into<Value>) -> RangeFilter<Record>
where Value: RecordKey + Ord + Send + Sync + 'static,

Builds a type-checked greater-than predicate.

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pub fn ge(self, value: impl Into<Value>) -> RangeFilter<Record>
where Value: RecordKey + Ord + Send + Sync + 'static,

Builds a type-checked greater-than-or-equal predicate.

Trait Implementations§

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impl<Record, Value> Clone for TypedField<Record, Value>

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fn clone(&self) -> TypedField<Record, Value>

Returns a duplicate 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<Record, Value> Debug for TypedField<Record, Value>
where Record: Debug, Value: 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<Record, Value> Hash for TypedField<Record, Value>
where Record: Hash, Value: Hash,

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fn hash<__H>(&self, state: &mut __H)
where __H: Hasher,

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<Record, Value> PartialEq for TypedField<Record, Value>
where Record: PartialEq, Value: PartialEq,

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fn eq(&self, other: &TypedField<Record, Value>) -> bool

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<Record, Value> Copy for TypedField<Record, Value>

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impl<Record, Value> Eq for TypedField<Record, Value>
where Record: Eq, Value: Eq,

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impl<Record, Value> StructuralPartialEq for TypedField<Record, Value>

Auto Trait Implementations§

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impl<Record, Value> Freeze for TypedField<Record, Value>

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impl<Record, Value> RefUnwindSafe for TypedField<Record, Value>

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impl<Record, Value> Send for TypedField<Record, Value>

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impl<Record, Value> Sync for TypedField<Record, Value>

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impl<Record, Value> Unpin for TypedField<Record, Value>

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impl<Record, Value> UnwindSafe for TypedField<Record, Value>

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<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] only if self and other return Action::Follow. Read more
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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] if either self or other returns Action::Follow. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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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> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more