Enum wasmi_core::Value

pub enum Value {
    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.

Implementations

impl Value

pub fn default(value_type: ValueType) -> Self

Creates new default value of given type.

pub fn decode_f32(val: u32) -> Self

👎Deprecated: use F32::from_bits(val).into() instead

Creates new value by interpreting passed u32 as f32.

pub fn decode_f64(val: u64) -> Self

👎Deprecated: use F64::from_bits(val).into() instead

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: FromValue>(self) -> Option<T>

Returns T if this particular Value contains appropriate type.

See FromValue for details.

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Value

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

Formats the value using the given formatter.

impl Display for Value

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

Formats the value using the given formatter.

impl From<F32> for Value

fn from(val: F32) -> Self

Converts to this type from the input type.

impl From<F64> for Value

fn from(val: F64) -> Self

Converts to this type from the input type.

impl From<Value> for UntypedValue

fn from(value: Value) -> Self

Converts to this type from the input type.

impl From<i16> for Value

fn from(val: i16) -> Self

Converts to this type from the input type.

impl From<i32> for Value

fn from(val: i32) -> Self

Converts to this type from the input type.

impl From<i64> for Value

fn from(val: i64) -> Self

Converts to this type from the input type.

impl From<i8> for Value

fn from(val: i8) -> Self

Converts to this type from the input type.

impl From<u16> for Value

fn from(val: u16) -> Self

Converts to this type from the input type.

impl From<u32> for Value

fn from(val: u32) -> Self

Converts to this type from the input type.

impl From<u64> for Value

fn from(val: u64) -> Self

Converts to this type from the input type.

impl From<u8> for Value

fn from(val: u8) -> Self

Converts to this type from the input type.

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: &Rhs) -> bool

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

impl Copy for Value

impl StructuralPartialEq for Value