diff --git a/crates/mist-api/src/builder.mist b/crates/mist-api/src/builder.mist
index ad9ab50..95f15da 100644
--- a/crates/mist-api/src/builder.mist
+++ b/crates/mist-api/src/builder.mist
@@ -11,11 +11,11 @@ use mist_parser::rev_mapper;
 
 #[derive(Debug, Clone)]
 pub struct MistDiagnosticMessage {
-    pub String message,
-    pub PathBuf file_path,
-    pub String file_name,
-    pub usize line,
-    pub usize column,
+    pub message String,
+    pub file_path PathBuf,
+    pub file_name String ,
+    pub line usize,
+    pub column usize,
 }
 
 #[derive(Debug, Clone)]
@@ -25,7 +25,7 @@ pub enum MistDiagnostic {
     Rust[CompilerMessage],
 }
 
-pub bool build(Vec<String> mut args, PathBuf root) {
+pub fn build(mut args Vec<String>, root PathBuf) bool {
     args.remove(0);
     args.insert(1, "--message-format=json".to_string());
 
@@ -68,7 +68,7 @@ pub bool build(Vec<String> mut args, PathBuf root) {
                             break;
                         }
 
-                        let map = mapping.entry(rust_path.clone()).or_insert_with(|| {
+                        let map = mapping.entry(rust_path.clone()).or_insert_with(fn() {
                             rev_mapper::get_mapping(
                                 &fs::read_to_string(rust_path)
                                     .expect("Failed to read file for mapping")
@@ -117,7 +117,7 @@ pub bool build(Vec<String> mut args, PathBuf root) {
                 let mut stdout = std::io::stdout();
 
                 std::io::copy(&mut raw_reader, &mut stdout)
-                    .map_err(|let v| v.to_string())
+                    .map_err(fn(v) -> v.to_string())
                     .expect("(Mist) Failed to copy IO");
 
                 command.wait().unwrap();
@@ -133,7 +133,7 @@ pub bool build(Vec<String> mut args, PathBuf root) {
     false
 }
 
-pub void print_diagnostics(Vec<MistDiagnostic>* diagnostics) {
+pub fn print_diagnostics(diagnostics *Vec<MistDiagnostic>) {
     let mut files = HashMap::new();
 
     for (diag : diagnostics) {
@@ -169,13 +169,13 @@ pub void print_diagnostics(Vec<MistDiagnostic>* diagnostics) {
     }
 }
 
-pub Option<String> get_line(
-    HashMap<PathBuf, Vec<String>> mut* files,
-    MistDiagnosticMessage* msg,
-) {
+pub fn get_line(
+    files *mut HashMap<PathBuf, Vec<String>>,
+    msg *MistDiagnosticMessage,
+) Option<String> {
     let src_path = msg.file_path.clone();
 
-    let lines = files.entry(src_path.clone()).or_insert_with(|| {
+    let lines = files.entry(src_path.clone()).or_insert_with(fn() {
         fs::read_to_string(src_path)
             .expect("Unable to read mist file")
             .lines()
@@ -184,5 +184,5 @@ pub Option<String> get_line(
             .collect()
     });
 
-    lines.get(msg.line - 1).map(|let v| v.trim().to_string())
+    lines.get(msg.line - 1).map(fn(v) -> v.trim().to_string())
 }
diff --git a/crates/mist-api/src/main.mist b/crates/mist-api/src/main.mist
index a9d9a94..6bbe87a 100644
--- a/crates/mist-api/src/main.mist
+++ b/crates/mist-api/src/main.mist
@@ -2,4 +2,4 @@ pub mod builder;
 pub mod transpiler;
 pub mod modules;
 
-void main() {}
\ No newline at end of file
+fn main() {}
\ No newline at end of file
diff --git a/crates/mist-api/src/modules.mist b/crates/mist-api/src/modules.mist
index 0a6f3c6..d79d3b6 100644
--- a/crates/mist-api/src/modules.mist
+++ b/crates/mist-api/src/modules.mist
@@ -5,22 +5,22 @@ use std::process;
 
 #[derive(Debug)]
 pub class Module {
-    pub String name;
-    pub PathBuf path;
-    pub Vec<Self> children;
+    pub name String;
+    pub path PathBuf;
+    pub children Vec<Self>;
 
-    pub constructor(PathBuf mist_path) {
+    pub constructor(mist_path PathBuf) {
         self.children = Vec::new();
         self.name = mist_path.file_stem()
-            .and_then(|let s| s.to_str())
+            .and_then(fn(s) -> s.to_str())
             .expect("Failed to get module name")
             .to_string();
         self.path = mist_path;
 
         if (self.path.is_dir()) {
-            PathBuf dir = self.path.clone();
+            let dir = self.path.clone();
 
-            PathBuf pkg_gate = self.path.join("package.mist");
+            let pkg_gate = self.path.join("package.mist");
             if (pkg_gate.exists()) {
                 self.path = pkg_gate;
             }
@@ -29,7 +29,7 @@ pub class Module {
         }
     }
 
-    void scan_directory(self mut*, Path* search_dir) {
+    fn scan_directory(*mut self, search_dir *Path) {
         let entries = match (fs::read_dir(search_dir)) {
             Ok[entries] => entries;
             Err[e] => {
@@ -47,7 +47,7 @@ pub class Module {
                 }
             };
 
-            PathBuf child_path = entry.path();
+            let child_path = entry.path();
 
             if (child_path == self.path) {
                 continue;
@@ -57,7 +57,7 @@ pub class Module {
         }
     }
 
-    pub PathBuf output_dir(self*, PathBuf* parent_dir) {
+    pub fn output_dir(*self, parent_dir *PathBuf) PathBuf {
         if (self.path.is_dir() || Some("package.mist") == self.path.file_name().unwrap().to_str()) {
             parent_dir.join(&self.name)
         } else {
@@ -65,7 +65,7 @@ pub class Module {
         }
     }
 
-    pub PathBuf output_path(self*, PathBuf* parent_dir) {
+    pub fn output_path(*self, parent_dir *PathBuf) PathBuf {
         if (self.path.is_dir() || Some("package.mist") == self.path.file_name().unwrap().to_str()) {
             parent_dir.join(&self.name).join("mod.rs")
         } else {
@@ -74,10 +74,10 @@ pub class Module {
     }
 }
 
-pub Module master_package(PathBuf mist_path) {
+pub fn master_package(mist_path PathBuf) Module {
     let mut root_mod = Module::new(mist_path.clone());
 
-    Path* parent_dir = mist_path.parent()
+    let parent_dir = mist_path.parent()
         .expect("Failed to get parent directory of root file");
 
     root_mod.scan_directory(parent_dir);
diff --git a/crates/mist-api/src/transpiler.mist b/crates/mist-api/src/transpiler.mist
index 54cb0e9..4291e89 100644
--- a/crates/mist-api/src/transpiler.mist
+++ b/crates/mist-api/src/transpiler.mist
@@ -7,13 +7,13 @@ use std::env;
 use mist_parser::error;
 use crate::modules;
 
-pub PathBuf transpile() {
+pub fn transpile() PathBuf {
     let start = time::Instant::now();
 
     let root = env::current_dir().expect("Unable to find project root");
 
-    PathBuf src = root.join("src");
-    PathBuf out = root.join(".mist/src");
+    let src = root.join("src");
+    let out = root.join(".mist/src");
 
     let master = modules::master_package(src.join("main.mist"));
 
@@ -30,10 +30,10 @@ pub PathBuf transpile() {
 }
 
 impl modules::Module {
-    String transpile(self*, PathBuf* parent_dir) {
-        if (!self.path.is_dir() && self.path.extension().and_then(|let v| v.to_str()) != Some("mist")) {
+    fn transpile(*self, parent_dir *PathBuf) String {
+        if (!self.path.is_dir() && self.path.extension().and_then(fn(v) -> v.to_str()) != Some("mist")) {
             let file_name = self.path.file_name()
-                .and_then(|let s| s.to_str())
+                .and_then(fn(s) -> s.to_str())
                 .expect("Failed to get file name");
 
             fs::copy(&self.path, parent_dir.join(&file_name)).expect("Failed to copy SideFile");
@@ -41,12 +41,12 @@ impl modules::Module {
             return String::new();
         }
 
-        PathBuf dir = self.output_dir(&parent_dir);
-        PathBuf output_file = self.output_path(&parent_dir);
+        let dir = self.output_dir(&parent_dir);
+        let output_file = self.output_path(&parent_dir);
 
         let _ = fs::create_dir_all(&dir);
 
-        String mut output = String::new();
+        let mut output = String::new();
 
         for (child : &self.children) {
             output.push_str(&child.transpile(&dir));
@@ -76,8 +76,8 @@ impl modules::Module {
     }
 }
 
-void transpile_file(PathBuf* path, PathBuf* output_file, str* mod_decl) {
-    String source = match (fs::read_to_string(path)) {
+fn transpile_file(path *PathBuf, output_file *PathBuf, mod_decl *str) {
+    let source = match (fs::read_to_string(path)) {
         Ok[s] => s;
         Err[e] => {
             eprintln!("error: failed to read file {}\n  {}", path.display(), e);
@@ -88,7 +88,7 @@ void transpile_file(PathBuf* path, PathBuf* output_file, str* mod_decl) {
 
     let mut gc = mist_codegen::RustCodegen::new();
 
-    String output = gc.generate(match (mist_parser::parse(&source)) {
+    let output = gc.generate(match (mist_parser::parse(&source)) {
         Ok[ast] => ast;
         Err[e] => {
             match (e) {