Vendor things

third-party/vendor/syn/tests/test_size.rs

@@ -0,0 +1,36 @@
+// Assumes proc-macro2's "span-locations" feature is off.
+
+#![cfg(target_pointer_width = "64")]
+
+use std::mem;
+use syn::{Expr, Item, Lit, Pat, Type};
+
+#[rustversion::attr(before(2022-11-24), ignore)]
+#[test]
+fn test_expr_size() {
+    assert_eq!(mem::size_of::<Expr>(), 176);
+}
+
+#[rustversion::attr(before(2022-09-09), ignore)]
+#[test]
+fn test_item_size() {
+    assert_eq!(mem::size_of::<Item>(), 360);
+}
+
+#[rustversion::attr(before(2023-04-29), ignore)]
+#[test]
+fn test_type_size() {
+    assert_eq!(mem::size_of::<Type>(), 232);
+}
+
+#[rustversion::attr(before(2023-04-29), ignore)]
+#[test]
+fn test_pat_size() {
+    assert_eq!(mem::size_of::<Pat>(), 184);
+}
+
+#[rustversion::attr(before(2023-12-20), ignore)]
+#[test]
+fn test_lit_size() {
+    assert_eq!(mem::size_of::<Lit>(), 24);
+}