Add tests of #[serde(default)] attribute for units and unions

2026-04-23 08:18:03 +00:00 · 2023-08-07 14:42:54 +05:00
parent 28a092261b
commit 21c7fd1bd5
8 changed files with 72 additions and 0 deletions
@@ -0,0 +1,14 @@
+error: #[serde(default)] can only be used on structs
+ --> tests/ui/default-attribute/union.rs:4:9
+  |
+4 | #[serde(default)]
+  |         ^^^^^^^
+
+error: Serde does not support derive for unions
+ --> tests/ui/default-attribute/union.rs:4:1
+  |
+4 | / #[serde(default)]
+5 | | union Union {
+6 | |     f: u8,
+7 | | }
+  | |_^