Struct frame_support::traits::GetDefault
source · [−]pub struct GetDefault;Expand description
Implement Get by returning Default for any type that implements Default.
Trait Implementations
sourceimpl<Value> QueryKindTrait<Value, GetDefault> for OptionQuery where
Value: FullCodec + 'static,
impl<Value> QueryKindTrait<Value, GetDefault> for OptionQuery where
Value: FullCodec + 'static,
sourceconst METADATA: StorageEntryModifier
const METADATA: StorageEntryModifier
Metadata for the storage kind.
sourcefn from_optional_value_to_query(v: Option<Value>) -> Self::Query
fn from_optional_value_to_query(v: Option<Value>) -> Self::Query
Convert an optional value (i.e. some if trie contains the value or none otherwise) to the query. Read more
sourcefn from_query_to_optional_value(v: Self::Query) -> Option<Value>
fn from_query_to_optional_value(v: Self::Query) -> Option<Value>
Convert a query to an optional value.
Auto Trait Implementations
impl RefUnwindSafe for GetDefault
impl Send for GetDefault
impl Sync for GetDefault
impl Unpin for GetDefault
impl UnwindSafe for GetDefault
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> CheckedConversion for T
impl<T> CheckedConversion for T
sourcefn checked_from<T>(t: T) -> Option<Self> where
Self: TryFrom<T>,
fn checked_from<T>(t: T) -> Option<Self> where
Self: TryFrom<T>,
Convert from a value of T into an equivalent instance of Option<Self>. Read more
sourcefn checked_into<T>(self) -> Option<T> where
Self: TryInto<T>,
fn checked_into<T>(self) -> Option<T> where
Self: TryInto<T>,
Consume self to return Some equivalent value of Option<T>. Read more
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Instruments this type with the provided Span, returning an
Instrumented wrapper. Read more
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceimpl<T, Outer> IsWrappedBy<Outer> for T where
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,
impl<T, Outer> IsWrappedBy<Outer> for T where
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,
sourceimpl<T> SaturatedConversion for T
impl<T> SaturatedConversion for T
sourcefn saturated_from<T>(t: T) -> Self where
Self: UniqueSaturatedFrom<T>,
fn saturated_from<T>(t: T) -> Self where
Self: UniqueSaturatedFrom<T>,
Convert from a value of T into an equivalent instance of Self. Read more
sourcefn saturated_into<T>(self) -> T where
Self: UniqueSaturatedInto<T>,
fn saturated_into<T>(self) -> T where
Self: UniqueSaturatedInto<T>,
Consume self to return an equivalent value of T. Read more
sourceimpl<S, T> UncheckedInto<T> for S where
T: UncheckedFrom<S>,
impl<S, T> UncheckedInto<T> for S where
T: UncheckedFrom<S>,
sourcepub fn unchecked_into(self) -> T
pub fn unchecked_into(self) -> T
The counterpart to unchecked_from.
sourceimpl<T, S> UniqueSaturatedInto<T> for S where
T: Bounded,
S: TryInto<T>,
impl<T, S> UniqueSaturatedInto<T> for S where
T: Bounded,
S: TryInto<T>,
sourcepub fn unique_saturated_into(self) -> T
pub fn unique_saturated_into(self) -> T
Consume self to return an equivalent value of T.