about summary refs log tree commit diff
path: root/tests/incremental/issue-42602.rs
diff options
context:
space:
mode:
authorAlbert Larsan <74931857+albertlarsan68@users.noreply.github.com>2023-01-05 09:13:28 +0100
committerAlbert Larsan <74931857+albertlarsan68@users.noreply.github.com>2023-01-11 09:32:08 +0000
commitcf2dff2b1e3fa55fa5415d524200070d0d7aacfe (patch)
tree40a88d9a46aaf3e8870676eb2538378b75a263eb /tests/incremental/issue-42602.rs
parentca855e6e42787ecd062d81d53336fe6788ef51a9 (diff)
downloadrust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.tar.gz
rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.zip
Move /src/test to /tests
Diffstat (limited to 'tests/incremental/issue-42602.rs')
-rw-r--r--tests/incremental/issue-42602.rs44
1 files changed, 44 insertions, 0 deletions
diff --git a/tests/incremental/issue-42602.rs b/tests/incremental/issue-42602.rs
new file mode 100644
index 00000000000..b8d5303fb47
--- /dev/null
+++ b/tests/incremental/issue-42602.rs
@@ -0,0 +1,44 @@
+// Regression test for #42602. It used to be that we had
+// a dep-graph like
+//
+//     typeck(foo) -> FnOnce -> typeck(bar)
+//
+// This was fixed by improving the resolution of the `FnOnce` trait
+// selection node.
+
+// revisions:cfail1 cfail2 cfail3
+// compile-flags:-Zquery-dep-graph
+// build-pass (FIXME(62277): could be check-pass?)
+
+#![feature(rustc_attrs)]
+
+fn main() {
+    a::foo();
+    b::bar();
+}
+
+mod a {
+    #[cfg(cfail1)]
+    pub fn foo() {
+        let x = vec![1, 2, 3];
+        let v = || ::std::mem::drop(x);
+        v();
+    }
+
+    #[cfg(not(cfail1))]
+    pub fn foo() {
+        let x = vec![1, 2, 3, 4];
+        let v = || ::std::mem::drop(x);
+        v();
+    }
+}
+
+mod b {
+    #[rustc_clean(cfg="cfail2")]
+    #[rustc_clean(cfg="cfail3")]
+    pub fn bar() {
+        let x = vec![1, 2, 3];
+        let v = || ::std::mem::drop(x);
+        v();
+    }
+}