Struct scale_info::TypeParameter

pub struct TypeParameter<T: Form = MetaForm> {
    pub name: T::String,
    pub ty: Option<T::Type>,
}

A generic type parameter.

Fields

name: T::String

The name of the generic type parameter e.g. “T”.

ty: Option<T::Type>

The concrete type for the type parameter.

None if the type parameter is skipped.

Implementations

impl TypeParameter<MetaForm>

pub fn new(
    name: <MetaForm as Form>::String,
    ty: Option<<MetaForm as Form>::Type>
) -> Self

Create a new TypeParameter.

impl TypeParameter<PortableForm>

pub fn new_portable(
    name: <PortableForm as Form>::String,
    ty: Option<<PortableForm as Form>::Type>
) -> Self

Create a new TypeParameter in PortableForm.

impl<T> TypeParameter<T>where
    T: Form,

pub fn ty(&self) -> Option<&T::Type>

👎Deprecated since 2.5.0: Prefer to access the fields directly; this getter will be removed in the next major version

Get the type of the parameter.

None if the parameter is skipped.

pub fn name(&self) -> &T::String

👎Deprecated since 2.5.0: Prefer to access the fields directly; this getter will be removed in the next major version

Get the name of the parameter.

Trait Implementations

impl<T: Clone + Form> Clone for TypeParameter<T>where
    T::String: Clone,
    T::Type: Clone,

fn clone(&self) -> TypeParameter<T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug + Form> Debug for TypeParameter<T>where
    T::String: Debug,
    T::Type: Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Form> Decode for TypeParameter<T>where
    T::String: Decode,
    Option<T::Type>: Decode,

fn decode<__CodecInputEdqy: Input>(
    __codec_input_edqy: &mut __CodecInputEdqy
) -> Result<Self, Error>

Attempt to deserialise the value from input.

fn decode_into<I>(
    input: &mut I,
    dst: &mut MaybeUninit<Self>
) -> Result<DecodeFinished, Error>where
    I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory.

fn skip<I>(input: &mut I) -> Result<(), Error>where
    I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl<'de, T: Form> Deserialize<'de> for TypeParameter<T>where
    T::Type: DeserializeOwned,
    T::String: DeserializeOwned,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
    __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T: Form> Encode for TypeParameter<T>where
    T::String: Encode,
    Option<T::Type>: Encode,

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode_to<__CodecOutputEdqy: Output + ?Sized>(
    &self,
    __codec_dest_edqy: &mut __CodecOutputEdqy
)

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8, Global>

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> Rwhere
    F: FnOnce(&[u8]) -> R,

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl<T: Form> From<(<T as Form>::String, Option<<T as Form>::Type>)> for TypeParameter<T>

fn from(original: (T::String, Option<T::Type>)) -> TypeParameter<T>

Converts to this type from the input type.

impl IntoPortable for TypeParameter

type Output = TypeParameter<PortableForm>

The portable version of Self.

fn into_portable(self, registry: &mut Registry) -> Self::Output

Convert self to the portable form by using the registry for caching.

impl<T: Ord + Form> Ord for TypeParameter<T>where
    T::String: Ord,
    T::Type: Ord,

fn cmp(&self, other: &TypeParameter<T>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl<T: PartialEq + Form> PartialEq<TypeParameter<T>> for TypeParameter<T>where
    T::String: PartialEq,
    T::Type: PartialEq,

fn eq(&self, other: &TypeParameter<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: PartialOrd + Form> PartialOrd<TypeParameter<T>> for TypeParameter<T>where
    T::String: PartialOrd,
    T::Type: PartialOrd,

fn partial_cmp(&self, other: &TypeParameter<T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T: Form> Serialize for TypeParameter<T>where
    T::Type: Serialize,
    T::String: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where
    __S: Serializer,

Serialize this value into the given Serde serializer.

impl<T: Form> EncodeLike<TypeParameter<T>> for TypeParameter<T>where
    T::String: Encode,
    Option<T::Type>: Encode,

impl<T: Eq + Form> Eq for TypeParameter<T>where
    T::String: Eq,
    T::Type: Eq,

impl<T: Form> StructuralEq for TypeParameter<T>

impl<T: Form> StructuralPartialEq for TypeParameter<T>