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#[derive(Debug, Clone, Copy)]
pub enum ValType {
    F(f32),
    D(f64),
    I(i32),
    L(i64),
}

use std::fmt;

impl fmt::Display for ValType {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "{:?}", self)
    }
}

impl From<ValType> for f32 {
    fn from(s: ValType) -> Self {
        match s {
            ValType::F(x) => x as f32,
            ValType::D(x) => x as f32,
            ValType::I(x) => x as f32,
            ValType::L(x) => x as f32,
        }
    }
}