From 674695d7e28f03218aa5a3facd933b87d508ea7d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gustav=20S=C3=B6rn=C3=A4s?= <gustav@sornas.net>
Date: Fri, 29 Jan 2021 21:01:29 +0100
Subject: ??

---
 src/compiler.rs | 4 +++-
 src/lib.rs      | 8 ++++----
 src/vm.rs       | 9 ++++++---
 3 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/src/compiler.rs b/src/compiler.rs
index d31ee0d..866e0a3 100644
--- a/src/compiler.rs
+++ b/src/compiler.rs
@@ -50,10 +50,11 @@ nextable_enum!(Prec {
 });
 
 
-#[derive(Debug, Clone)]
+#[derive(Clone)]
 pub struct Prog {
     pub blocks: Vec<Rc<RefCell<Block>>>,
     pub blobs: Vec<Rc<Blob>>,
+    pub functions: Vec<RustFunction>,
 }
 
 #[derive(Debug, Clone)]
@@ -1077,6 +1078,7 @@ impl Compiler {
             Ok(Prog {
                 blocks: self.blocks.clone(),
                 blobs: self.blobs.iter().map(|x| Rc::new(x.clone())).collect(),
+                functions: functions.iter().map(|(_, f)| *f).collect(),
             })
         } else {
             Err(self.errors.clone())
diff --git a/src/lib.rs b/src/lib.rs
index 5150be3..e68adff 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -20,10 +20,10 @@ pub fn run_string(s: &str, print: bool, functions: Vec<(String, RustFunction)>)
 
 pub fn run(tokens: TokenStream, path: &Path, print: bool, functions: Vec<(String, RustFunction)>) -> Result<(), Vec<Error>> {
     match compiler::compile("main", path, tokens, &functions) {
-        Ok(blocks) => {
-            let mut vm = vm::VM::new(&functions).print_blocks(print).print_ops(print);
-            vm.typecheck(&blocks)?;
-            if let Err(e) = vm.run(&blocks) {
+        Ok(prog) => {
+            let mut vm = vm::VM::new().print_blocks(print).print_ops(print);
+            vm.typecheck(&prog)?;
+            if let Err(e) = vm.run(&prog) {
                 Err(vec![e])
             } else {
                 Ok(())
diff --git a/src/vm.rs b/src/vm.rs
index feb5094..da044a5 100644
--- a/src/vm.rs
+++ b/src/vm.rs
@@ -295,6 +295,7 @@ pub struct VM {
     print_ops: bool,
 
     extern_functions: Vec<RustFunction>,
+
 }
 
 enum OpResult {
@@ -303,7 +304,7 @@ enum OpResult {
 }
 
 impl VM {
-    pub fn new(functions: &[(String, RustFunction)]) -> Self {
+    pub fn new() -> Self {
         Self {
             upvalues: HashMap::new(),
 
@@ -313,7 +314,7 @@ impl VM {
             print_blocks: false,
             print_ops: false,
 
-            extern_functions: functions.iter().map(|(_, f)| *f).collect()
+            extern_functions: Vec::new()
         }
     }
 
@@ -627,7 +628,7 @@ impl VM {
                         return Ok(OpResult::Continue);
                     }
                     Value::ExternFunction(slot) => {
-                        let extern_func = self.extern_functions[*slot];
+                        let extern_func = self.extern_functions[slot];
                         let res = extern_func(&self.stack[new_base+1..]);
                         self.stack.truncate(new_base);
                         self.stack.push(res);
@@ -682,6 +683,7 @@ impl VM {
     pub fn run(&mut self, prog: &Prog) -> Result<(), Error>{
         let block = Rc::clone(&prog.blocks[0]);
         self.blobs = prog.blobs.clone();
+        self.extern_functions = prog.functions.clone();
         self.stack.clear();
         self.frames.clear();
 
@@ -941,6 +943,7 @@ impl VM {
         let mut errors = Vec::new();
 
         self.blobs = prog.blobs.clone();
+        self.extern_functions = prog.functions.clone();
         for block in prog.blocks.iter() {
             errors.append(&mut self.typecheck_block(Rc::clone(block)));
         }
-- 
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