Function get_shift_amount

src/oomir/interpret.rs:657–668

Helper for shift amount conversion (must be usize for BigInt shifts)

(op2: &Constant)

    match array {
        Constant::Array(_, elems) => Some(Constant::I32(
            elems.len().try_into().ok().unwrap_or(i32::MAX), // Handle potential overflow
        )),
        _ => None, // Not an array
    }
}

pub fn get_field_constant(instance: Constant, field_name: String) -> Option<Constant> {
    match instance {
        Constant::Instance { fields, .. } => fields.get(&field_name).cloned(),
        _ => None, // Not an instance or doesn't have fields map
    }
}

impl Constant {
    fn as_i8(&self) -> Option<i8> {