[rlox] init

rlox/.gitignore

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+target/
+.projectile

rlox/Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "rlox"
+version = "0.1.0"

rlox/Cargo.toml

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+[package]
+name = "rlox"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

rlox/src/bytecode.rs

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+#[repr(u8)]
+#[derive(Debug)]
+pub enum Op {
+    Return
+}

rlox/src/chunk.rs

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+use crate::Op;
+
+use std::fmt;
+
+pub struct Chunk {
+    code: Vec<Op>,
+    name: String
+}
+
+impl Chunk {
+    pub fn new(name: String) -> Chunk {
+        Chunk {
+            code: Vec::new(),
+            name
+        }
+    }
+
+    pub fn add(&mut self, op: Op) {
+        self.code.push(op)
+    }
+}
+
+impl fmt::Debug for Chunk {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
+        writeln!(f, "-*-*- {} -*-*-", self.name)?;
+        for (idx, op) in self.code.iter().enumerate() {
+            write!(f, "{:04}  {:?}", idx, op)?;
+        }
+
+        return Ok(());
+    }
+}

rlox/src/main.rs

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+mod chunk;
+mod bytecode;
+
+use chunk::Chunk;
+use bytecode::Op;
+
+fn main() {
+    let mut chunk = Chunk::new("TEST".to_string());
+    chunk.add(Op::Return);
+    println!("{:?}", chunk);
+}