remove naive interpreter

rust2/src/naive_interpreter.rs

@@ -1,55 +0,0 @@
-use crate::parse::Instr;
-use std::io::{Read, Write};
-use std::num::Wrapping;
-
-const MEM_SIZE: usize = 32_000;
-
-type Memory = [Wrapping<u8>; MEM_SIZE];
-
-pub fn run(instrs: &[Instr<'_>]) {
-    let mut mem = [Wrapping(0u8); MEM_SIZE];
-    let mut ptr = 0;
-
-    execute(&mut mem, &mut ptr, instrs);
-}
-
-fn execute(mem: &mut Memory, ptr: &mut usize, instrs: &[Instr<'_>]) {
-    for instr in instrs {
-        match instr {
-            Instr::Add => {
-                mem[*ptr] += 1;
-            }
-            Instr::Sub => {
-                mem[*ptr] -= 1;
-            }
-            Instr::Right => {
-                *ptr += 1;
-                if *ptr >= MEM_SIZE {
-                    *ptr = 0;
-                }
-            }
-            Instr::Left => {
-                if *ptr == 0 {
-                    *ptr = MEM_SIZE - 1;
-                } else {
-                    *ptr -= 1;
-                }
-            }
-            Instr::Out => {
-                let char = mem[*ptr].0 as char;
-                print!("{char}",);
-                std::io::stdout().flush().unwrap();
-            }
-            Instr::In => {
-                let mut buf = [0; 1];
-                std::io::stdin().read_exact(&mut buf).unwrap();
-                mem[*ptr] = Wrapping(buf[0]);
-            }
-            Instr::Loop(body) => {
-                while mem[*ptr] != Wrapping(0) {
-                    execute(mem, ptr, body);
-                }
-            }
-        }
-    }
-}