use crate::{
    core::{Primitive, Value},
    interpreters::Interpreter,
};

struct EvalInterpreter {}

impl Interpreter for EvalInterpreter {
    fn process_primitive(&mut self, primitive: Primitive) -> Box<dyn Value> {
        use Primitive::*;
        Box::new(match primitive {
            Neg(x) => -x,
            Reciprocal(x) => 1. / x,
            Add(x, y) => x + y,
            Mul(x, y) => x * y,
            Sq(x) => x * x,
            Sqrt(x) => x.sqrt(),
            Ln(x) => x.ln(),
            Exp(x) => x.exp(),
            Dot(A, B) => A.dot(&B),
            ReLU(x) => x.max(0.),
        })
    }
}