diff --git a/[ b/[
new file mode 100644
index 0000000..183df37
--- /dev/null
+++ b/[
@@ -0,0 +1,24 @@
+mod namespace;
+pub use namespace::*;
+
+use super::Id;
+
+pub struct Fn {
+    pub body: Body,
+}
+
+pub struct Body {
+    pub statements: Vec<Statement>,
+}
+
+pub struct Statement {
+    ty: StatementTy,
+}
+
+pub enum StatementTy {
+    Define,
+    Assign,
+    Call { target: VarId, args: VarId },
+}
+
+pub type VarId = usize;
diff --git a/src/ir/id.rs b/src/ir/id.rs
index 7ff7bec..791462e 100644
--- a/src/ir/id.rs
+++ b/src/ir/id.rs
@@ -44,10 +44,7 @@ impl<T> Default for IdVec<T> {
 
 impl<T> Clone for Id<T> {
     fn clone(&self) -> Self {
-        Self {
-            idx: self.idx.clone(),
-            _pd: self._pd.clone(),
-        }
+        *self
     }
 }
 
diff --git a/src/ir/structs/mod.rs b/src/ir/structs/mod.rs
index 530afd3..22a9d66 100644
--- a/src/ir/structs/mod.rs
+++ b/src/ir/structs/mod.rs
@@ -4,4 +4,39 @@ pub use namespace::*;
 use super::Id;
 
 pub struct Fn {
+    pub body: Body,
 }
+
+pub struct Body {
+    pub statements: Vec<Statement>,
+}
+
+pub struct Statement {
+    ty: StatementTy,
+}
+
+pub enum StatementTy {
+    Define,
+    Assign {
+        target: VarId,
+        ty: TypeId,
+        val: VarId,
+    },
+    Call {
+        target: VarId,
+        args: Vec<VarId>,
+    },
+}
+
+pub struct Var {
+    const_: bool,
+    ty: TypeId,
+}
+
+pub enum Type {
+    Unsigned(u8),
+    Signed(u8),
+}
+
+pub type VarId = u32;
+pub type TypeId = u32;
diff --git a/src/parser_ir/mod.rs b/src/parser_ir/mod.rs
index e65798f..3cb5c70 100644
--- a/src/parser_ir/mod.rs
+++ b/src/parser_ir/mod.rs
@@ -18,9 +18,9 @@ pub fn parse_program(path: impl AsRef<Path>, output: &mut CompilerOutput) -> Opt
         imports.done.insert(next.clone());
         let path = dir.join(next + ".lang");
         println!("=== {path:?}");
-        let root = parse_file(path, output)?;
-        print!("{}", root.new_dsp());
-        let defs = scan(&mut imports, &root, output);
+        let body = parse_file(path, output)?;
+        print!("{}", body.new_dsp());
+        let defs = scan(&mut imports, &body, output);
         for (name, spans) in &defs.duplicates {
             output.error(CompilerMsg {
                 msg: format!("Multiple definitions found for {name}"),
diff --git a/test/main.lang b/test/main.lang
index 2b1a365..1ddf40d 100644
--- a/test/main.lang
+++ b/test/main.lang
@@ -1,4 +1,4 @@
-x : i32 = 3;
+x : u32 = 3;
 while true {
    print("hello");
    print(x);