Enum sp_wasm_interface::Value

pub enum Value {
    I32(i32),
    I64(i64),
    F32(u32),
    F64(u64),
}

Values supported by Substrate on the boundary between host/Wasm.

Variants

I32(i32)

A 32-bit integer.

I64(i64)

A 64-bit integer.

F32(u32)

A 32-bit floating-point number stored as raw bit pattern.

You can materialize this value using f32::from_bits.

F64(u64)

A 64-bit floating-point number stored as raw bit pattern.

You can materialize this value using f64::from_bits.

Implementations

impl Value

pub fn value_type(&self) -> ValueType

Returns the type of this value.

pub fn as_i32(&self) -> Option<i32>

Return Self as i32.

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Value

impl Debug for Value

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

Formats the value using the given formatter.

impl Decode for Value

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

Attempt to deserialise the value from input.

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

Attempt to skip the encoded value from input.

pub fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl Encode for Value

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

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

pub fn size_hint(&self) -> usize

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

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

Convert self to an owned vector.

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

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

pub fn encoded_size(&self) -> usize

Calculates the encoded size.

impl EncodeLike<Value> for Value

impl From<RuntimeValue> for Value

fn from(value: RuntimeValue) -> Self

Performs the conversion.

impl From<Value> for ReturnValue

fn from(v: Value) -> ReturnValue

Performs the conversion.

impl PartialEq<Value> for Value

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

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

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

This method tests for !=.

impl StructuralPartialEq for Value