pub struct DowncastLibfunc {}Expand description
Libfunc for casting from one type to another where the input value may not fit into the destination type. For example, from u64 to u8.
Trait Implementations§
source§impl Default for DowncastLibfunc
impl Default for DowncastLibfunc
source§fn default() -> DowncastLibfunc
fn default() -> DowncastLibfunc
Returns the “default value” for a type. Read more
source§impl NamedLibfunc for DowncastLibfunc
impl NamedLibfunc for DowncastLibfunc
const STR_ID: &'static str = "downcast"
type Concrete = DowncastConcreteLibfunc
source§fn specialize_signature(
&self,
context: &dyn SignatureSpecializationContext,
args: &[GenericArg],
) -> Result<LibfuncSignature, SpecializationError>
fn specialize_signature( &self, context: &dyn SignatureSpecializationContext, args: &[GenericArg], ) -> Result<LibfuncSignature, SpecializationError>
Creates the specialization of the libfunc’s signature with the template arguments.
source§fn specialize(
&self,
context: &dyn SpecializationContext,
args: &[GenericArg],
) -> Result<Self::Concrete, SpecializationError>
fn specialize( &self, context: &dyn SpecializationContext, args: &[GenericArg], ) -> Result<Self::Concrete, SpecializationError>
Creates the specialization with the template arguments.
Auto Trait Implementations§
impl Freeze for DowncastLibfunc
impl RefUnwindSafe for DowncastLibfunc
impl Send for DowncastLibfunc
impl Sync for DowncastLibfunc
impl Unpin for DowncastLibfunc
impl UnwindSafe for DowncastLibfunc
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<TNamedLibfunc> GenericLibfunc for TNamedLibfuncwhere
TNamedLibfunc: NamedLibfunc,
impl<TNamedLibfunc> GenericLibfunc for TNamedLibfuncwhere
TNamedLibfunc: NamedLibfunc,
type Concrete = <TNamedLibfunc as NamedLibfunc>::Concrete
source§fn supported_ids() -> Vec<GenericLibfuncId>
fn supported_ids() -> Vec<GenericLibfuncId>
Returns the list of generic libfuncs ids that can be instantiated through this type.
This is useful on hierarchical libfunc aggregates such as
CoreLibfunc.source§fn by_id(id: &GenericLibfuncId) -> Option<TNamedLibfunc>
fn by_id(id: &GenericLibfuncId) -> Option<TNamedLibfunc>
Instantiates the libfunc by id.
source§fn specialize_signature(
&self,
context: &dyn SignatureSpecializationContext,
args: &[GenericArg],
) -> Result<LibfuncSignature, SpecializationError>
fn specialize_signature( &self, context: &dyn SignatureSpecializationContext, args: &[GenericArg], ) -> Result<LibfuncSignature, SpecializationError>
Creates the specialization of the libfunc’s signature with the template arguments.
source§fn specialize(
&self,
context: &dyn SpecializationContext,
args: &[GenericArg],
) -> Result<<TNamedLibfunc as GenericLibfunc>::Concrete, SpecializationError>
fn specialize( &self, context: &dyn SpecializationContext, args: &[GenericArg], ) -> Result<<TNamedLibfunc as GenericLibfunc>::Concrete, SpecializationError>
Creates the specialization with the template arguments.
source§impl<TGenericLibfunc> GenericLibfuncEx for TGenericLibfuncwhere
TGenericLibfunc: GenericLibfunc,
impl<TGenericLibfunc> GenericLibfuncEx for TGenericLibfuncwhere
TGenericLibfunc: GenericLibfunc,
fn specialize_signature_by_id( context: &dyn SignatureSpecializationContext, libfunc_id: &GenericLibfuncId, generic_args: &[GenericArg], ) -> Result<LibfuncSignature, ExtensionError>
fn specialize_by_id( context: &dyn SpecializationContext, libfunc_id: &GenericLibfuncId, generic_args: &[GenericArg], ) -> Result<<TGenericLibfunc as GenericLibfunc>::Concrete, ExtensionError>
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
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 moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
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