Enum wasmi::RuntimeValue

pub enum RuntimeValue {
    I32(i32),
    I64(i64),
    F32(F32),
    F64(F64),
}

Runtime representation of a value.

Wasm code manipulate values of the four basic value types: integers and floating-point (IEEE 754-2008) data of 32 or 64 bit width each, respectively.

There is no distinction between signed and unsigned integer types. Instead, integers are interpreted by respective operations as either unsigned or signed in two’s complement representation.

Variants

I32(i32)

Value of 32-bit signed or unsigned integer.

I64(i64)

Value of 64-bit signed or unsigned integer.

F32(F32)

Value of 32-bit IEEE 754-2008 floating point number.

F64(F64)

Value of 64-bit IEEE 754-2008 floating point number.

Methods

impl RuntimeValue

pub fn default(value_type: ValueType) -> Self

Creates new default value of given type.

pub fn decode_f32(val: u32) -> Self

Creates new value by interpreting passed u32 as f32.

pub fn decode_f64(val: u64) -> Self

Creates new value by interpreting passed u64 as f64.

pub fn value_type(&self) -> ValueType

Get variable type for this value.

pub fn try_into<T: FromRuntimeValue>(self) -> Option<T>

Returns T if this particular RuntimeValue contains appropriate type.

See FromRuntimeValue for details.

Trait Implementations

impl From<i8> for RuntimeValue

fn from(val: i8) -> Self

Performs the conversion.

impl From<i16> for RuntimeValue

fn from(val: i16) -> Self

Performs the conversion.

impl From<i32> for RuntimeValue

fn from(val: i32) -> Self

Performs the conversion.

impl From<i64> for RuntimeValue

fn from(val: i64) -> Self

Performs the conversion.

impl From<u8> for RuntimeValue

fn from(val: u8) -> Self

Performs the conversion.

impl From<u16> for RuntimeValue

fn from(val: u16) -> Self

Performs the conversion.

impl From<u32> for RuntimeValue

fn from(val: u32) -> Self

Performs the conversion.

impl From<u64> for RuntimeValue

fn from(val: u64) -> Self

Performs the conversion.

impl From<F32> for RuntimeValue

fn from(val: F32) -> Self

Performs the conversion.

impl From<F64> for RuntimeValue

fn from(val: F64) -> Self

Performs the conversion.

impl Copy for RuntimeValue

impl Clone for RuntimeValue

fn clone(&self) -> RuntimeValue

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq<RuntimeValue> for RuntimeValue

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

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

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

This method tests for !=.

impl Debug for RuntimeValue

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

Formats the value using the given formatter.