Create Statements

coletonodonnell · Feb 9, 2022 · d753016 · d753016
1 parent f408aeb
commit d753016
Showing 1 changed file with 22 additions and 0 deletions.
diff --git a/src/stmt.rs b/src/stmt.rs
@@ -0,0 +1,22 @@
+use crate::expression::Expr;
+
+pub enum Stmt {
+    Expression {
+        expression: Expr
+    },
+    Print {
+        expression: Expr
+    }
+}
+
+pub trait StmtVisitor<T> {
+    fn execute(&mut self, stmt: Stmt) -> T {
+        match stmt {
+            Stmt::Expression {expression: a} => self.visit_expression(a),
+            Stmt::Print {expression: a} => self.visit_print(a)
+        }
+    }
+
+    fn visit_expression(&mut self, expression: Expr) -> T;
+    fn visit_print(&mut self, expression: Expr) -> T;
+}