Interface RawValue

core/src/bytecode.rs:109–122

Conversions between a primitive type and a `u32` for insertion into an instruction.

/// Conversions between a primitive type and a `u32` for insertion into an instruction.
trait RawValue: Sized {
    /// Converts a `u32` to the primitive type `Self`.
    ///
    /// This operation is only performed to _parse_ bytecode and we assume that the bytecode is
    /// correctly formed.  As a result, this does not perform any range checks.
    fn from_u32(v: u32) -> Self;

    /// Converts the primitive type `Self` to a u32.
    ///
    /// This operation is only performed to _generate_ bytecode during compilation, and all
    /// instruction definitions need to have fields that always fit in a u32.  Consequently,
    /// this operation is always safe.
    fn to_u32(self) -> u32;
}

/// Implements `RawValue` for an unsigned primitive type that is narrower than `u32`.
macro_rules! impl_raw_value {