Var enum (#27)

* fix passing vecnew

* add bug tests

* comp test

* rename

* sep files

* refactor

* impl all types

* fix

* fix

* fix

* fix

* fix

* fix

* fix func

examples/mandelbrot.rc

@@ -54,8 +54,7 @@ while y < HEIGHT {
 		isstable = 1
 
 		while i < 50 {
-			mulres = complexmul(acc, acc)
-			acc = complexadd(mulres, c)
+			acc = complexadd(complexmul(acc, acc), c)
 			if sqrt(vecget(acc, 0) * vecget(acc, 0) + vecget(acc, 1) * vecget(acc, 1)) > 2 {
 				isstable = 0
 			}

src/compiler/frame.rs

@@ -0,0 +1,30 @@
+use crate::compiler::var::Var;
+use crate::llvm;
+use std::collections::HashMap;
+
+pub struct Frame {
+    env: HashMap<String, Var>,
+    pub fun: llvm::Value,
+}
+
+impl Frame {
+    pub fn new(fun: llvm::Value) -> Self {
+        Frame {
+            env: HashMap::new(),
+            fun,
+        }
+    }
+
+    pub fn get(&self, literal: &str) -> Option<&Var> {
+        self.env.get(literal)
+    }
+
+    pub fn set(&mut self, literal: &str, val: Var) {
+        self.env.insert(literal.to_string(), val);
+    }
+
+    #[allow(dead_code)]
+    pub fn remove(&mut self, literal: &str) {
+        self.env.remove(&literal.to_string());
+    }
+}