Struct schema_analysis::context::NullContext
source · pub struct NullContext {
pub count: Counter,
}
Fields§
§count: Counter
Trait Implementations§
source§impl Aggregate<()> for NullContext
impl Aggregate<()> for NullContext
source§impl Clone for NullContext
impl Clone for NullContext
source§fn clone(&self) -> NullContext
fn clone(&self) -> NullContext
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Coalesce for NullContext
impl Coalesce for NullContext
source§impl Debug for NullContext
impl Debug for NullContext
source§impl Default for NullContext
impl Default for NullContext
source§fn default() -> NullContext
fn default() -> NullContext
Returns the “default value” for a type. Read more
source§impl<'de> Deserialize<'de> for NullContext
impl<'de> Deserialize<'de> for NullContext
source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
source§impl Hash for NullContext
impl Hash for NullContext
source§impl PartialEq<NullContext> for NullContext
impl PartialEq<NullContext> for NullContext
source§fn eq(&self, other: &NullContext) -> bool
fn eq(&self, other: &NullContext) -> bool
This method tests for
self
and other
values to be equal, and is used
by ==
.source§impl Serialize for NullContext
impl Serialize for NullContext
impl Eq for NullContext
impl StructuralEq for NullContext
impl StructuralPartialEq for NullContext
Auto Trait Implementations§
impl RefUnwindSafe for NullContext
impl Send for NullContext
impl Sync for NullContext
impl Unpin for NullContext
impl UnwindSafe for NullContext
Blanket Implementations§
source§impl<T> CoalesceAny for Twhere
T: Coalesce + 'static,
impl<T> CoalesceAny for Twhere
T: Coalesce + 'static,
source§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
source§fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
Convert
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
.source§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
Convert
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
.source§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s.source§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.source§impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key
and return true
if they are equal.