Add ui test reproducing issue 163

dtolnay · Dec 18, 2021 · 8602ca3 · 8602ca3
1 parent 7966eb3
commit 8602ca3
Show file tree

Hide file tree

Showing 2 changed files with 17 additions and 0 deletions.
diff --git a/tests/ui/from-backtrace-backtrace.rs b/tests/ui/from-backtrace-backtrace.rs
@@ -0,0 +1,12 @@
+// https://github.com/dtolnay/thiserror/issues/163
+
+#![feature(backtrace)]
+
+use std::backtrace::Backtrace;
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+#[error("...")]
+pub struct Error(#[from] #[backtrace] std::io::Error, Backtrace);
+
+fn main() {}
diff --git a/tests/ui/from-backtrace-backtrace.stderr b/tests/ui/from-backtrace-backtrace.stderr
@@ -0,0 +1,5 @@
+error[E0063]: missing field `1` in initializer of `Error`
+  --> tests/ui/from-backtrace-backtrace.rs:10:12
+   |
+10 | pub struct Error(#[from] #[backtrace] std::io::Error, Backtrace);
+   |            ^^^^^ missing `1`