diff --git a/src/expr.zig b/src/expr.zig
deleted file mode 100644
index e00e76f..0000000
--- a/src/expr.zig
+++ /dev/null
@@ -1,28 +0,0 @@
-const Token = @import("token.zig").Token;
-
-pub const Binary = struct {
-    left: Expr,
-    operator: Token,
-    right: Expr,
-};
-
-pub const Grouping = struct {
-    expression: Expr,
-};
-
-pub const Unary = struct {
-    operator: Token,
-    right: Expr,
-};
-
-pub const ExprType = enum {
-    Binary,
-    Grouping,
-    Unary,
-};
-
-pub const Expr = union(ExprType) {
-    Binary: Binary,
-    Grouping: Grouping,
-    Unary: Unary,
-};