pain

1 files changed, 38 insertions, 0 deletions

diff --git a/src/ast/printer.rs b/src/ast/printer.rs
new file mode 100644
index 0000000..1aa32ae
--- /dev/null
+++ b/src/ast/printer.rs
@@ -0,0 +1,38 @@
+// use super::{AstVisitor, Expr, Stmt};
+
+// pub struct AstPrettyPrinter;
+// impl AstVisitor<String> for AstPrettyPrinter {
+//     fn visit_stmt(&self, stmt: &Stmt) -> String {
+//         match stmt {
+//             Stmt::Expr(expr) => self.visit_expr(expr),
+//             Stmt::Val(name, expr) => format!("(val '{}' <- {})", name,
+// self.visit_expr(expr)),             Stmt::Var(name, expr) => format!("(var
+// '{}' <- {})", name, self.visit_expr(expr)),         }
+//     }
+
+//     fn visit_expr(&self, expr: &Expr) -> String {
+//         match expr {
+//             Expr::Literal(i) => i.to_string(),
+//             Expr::Add(lhs, rhs) => {
+//                 let lhs = self.visit_expr(lhs);
+//                 let rhs = self.visit_expr(rhs);
+//                 format!("({lhs} + {rhs})")
+//             }
+//             Expr::Sub(lhs, rhs) => {
+//                 let lhs = self.visit_expr(lhs);
+//                 let rhs = self.visit_expr(rhs);
+//                 format!("({lhs} - {rhs})")
+//             }
+//             Expr::Mul(lhs, rhs) => {
+//                 let lhs = self.visit_expr(lhs);
+//                 let rhs = self.visit_expr(rhs);
+//                 format!("({lhs} * {rhs})")
+//             }
+//             Expr::Div(lhs, rhs) => {
+//                 let lhs = self.visit_expr(lhs);
+//                 let rhs = self.visit_expr(rhs);
+//                 format!("({lhs} / {rhs})")
+//             }
+//         }
+//     }
+// }