Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 36 insertions, 0 deletions

diff --git a/src/test/ui/dep-graph/dep-graph-caller-callee.rs b/src/test/ui/dep-graph/dep-graph-caller-callee.rs
new file mode 100644
index 000000000..4a3a8bb6b
--- /dev/null
+++ b/src/test/ui/dep-graph/dep-graph-caller-callee.rs
@@ -0,0 +1,36 @@
+// Test that immediate callers have to change when callee changes, but
+// not callers' callers.
+
+// incremental
+// compile-flags: -Z query-dep-graph
+
+#![feature(rustc_attrs)]
+#![allow(dead_code)]
+
+fn main() { }
+
+mod x {
+    #[rustc_if_this_changed]
+    pub fn x() { }
+}
+
+mod y {
+    use x;
+
+    // These dependencies SHOULD exist:
+    #[rustc_then_this_would_need(typeck)] //~ ERROR OK
+    pub fn y() {
+        x::x();
+    }
+}
+
+mod z {
+    use y;
+
+    // These are expected to yield errors, because changes to `x`
+    // affect the BODY of `y`, but not its signature.
+    #[rustc_then_this_would_need(typeck)] //~ ERROR no path
+    pub fn z() {
+        y::y();
+    }
+}