iterator codegen

parser/src/ast.rs

@@ -115,6 +115,7 @@ pub enum Statement {
     For {
         pattern: String,
         iterator: Expression,
+        body: Box<Statement>,
     },
 
     Return(Option<Expression>),

parser/src/lib.rs

@@ -343,6 +343,7 @@ impl From<pest::iterators::Pair<'_, Rule>> for Statement {
             Rule::for_stmt => Statement::For {
                 pattern: inner.next().unwrap().as_str().to_string(),
                 iterator: inner.next().unwrap().into(),
+                body: Box::new(Statement::from(inner.next().unwrap())),
             },
 
             Rule::assign_statement => Statement::VarAssign(VarAssignStmt {