From b9710f5de083e8205dbb51921f43d96b17fd43cf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gustav=20S=C3=B6rn=C3=A4s?= <gustav@sornas.net>
Date: Tue, 12 Jan 2021 23:35:18 +0100
Subject: vm takes &Block

---
 src/lib.rs | 2 +-
 src/vm.rs  | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'src')

diff --git a/src/lib.rs b/src/lib.rs
index aef8c53..53fa0f3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -19,7 +19,7 @@ pub fn run_string(s: &str) -> Result<(), Vec<Error>> {
 
 pub fn run(tokens: TokenStream, path: &Path) -> Result<(), Vec<Error>> {
     match compiler::compile("main", path, tokens) {
-        Ok(block) => vm::run_block(block).or_else(|e| Err(vec![e])),
+        Ok(block) => vm::run_block(&block).or_else(|e| Err(vec![e])),
         Err(errors) => Err(errors),
     }
 }
diff --git a/src/vm.rs b/src/vm.rs
index 4c09756..44a5829 100644
--- a/src/vm.rs
+++ b/src/vm.rs
@@ -130,14 +130,14 @@ impl Block {
 }
 
 #[derive(Debug)]
-pub struct VM {
+pub struct VM<'a> {
     stack: Vec<Value>,
 
-    block: Block,
+    block: &'a Block,
     ip: usize,
 }
 
-pub fn run_block(block: Block) -> Result<(), Error> {
+pub fn run_block<'a> (block: &'a Block) -> Result<(), Error> {
     let mut vm = VM {
         stack: Vec::new(),
 
@@ -148,7 +148,7 @@ pub fn run_block(block: Block) -> Result<(), Error> {
     vm.run()
 }
 
-impl VM {
+impl VM<'_> {
     fn pop_twice(&mut self) -> (Value, Value) {
         let len = self.stack.len();
         let res = (self.stack[len-2].clone(), self.stack[len-1].clone());
-- 
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