Vendor things

third-party/vendor/swc_visit/tests/fold.rs

@@ -0,0 +1,40 @@
+#![allow(clippy::ptr_arg)]
+
+use std::any::Any;
+
+use swc_visit::define;
+
+/// Visitable nodes.
+pub trait Node: Any {}
+
+impl<T: ?Sized> Node for T where T: Any {}
+
+#[derive(Debug, PartialEq)]
+pub struct Item {
+    // pub field: usize,
+    // pub inner: Option<Box<Item>>,
+    pub opt_vec: Option<Vec<Item>>,
+    pub vec_opt: Vec<Option<Item>>,
+
+    pub value: f64,
+}
+#[derive(Debug, PartialEq)]
+pub enum Enum {
+    Item(Item),
+    Boxed(Box<Enum>),
+}
+
+define!({
+    pub struct Item {
+        // pub field: usize,
+        // pub inner: Option<Box<Item>>,
+        pub opt_vec: Option<Vec<Item>>,
+        pub vec_opt: Vec<Option<Item>>,
+
+        pub value: f64,
+    }
+    pub enum Enum {
+        Item(Item),
+        Boxed(Box<Enum>),
+    }
+});