1 files changed, 97 insertions, 0 deletions
diff --git a/src/test/ui/compile-fail-migration/dep-graph-struct-signature.rs b/src/test/ui/compile-fail-migration/dep-graph-struct-signature.rs
new file mode 100644
index 00000000000..647605ae438
--- /dev/null
+++ b/src/test/ui/compile-fail-migration/dep-graph-struct-signature.rs
@@ -0,0 +1,97 @@
+// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// Test cases where a changing struct appears in the signature of fns
+// and methods.
+
+// compile-flags: -Z query-dep-graph
+
+#![feature(rustc_attrs)]
+#![allow(dead_code)]
+#![allow(unused_variables)]
+
+fn main() { }
+
+#[rustc_if_this_changed]
+struct WillChange {
+    x: u32,
+    y: u32
+}
+
+struct WontChange {
+    x: u32,
+    y: u32
+}
+
+// these are valid dependencies
+mod signatures {
+    use WillChange;
+
+    #[rustc_then_this_would_need(TypeOfItem)] //~ ERROR no path
+    #[rustc_then_this_would_need(AssociatedItems)] //~ ERROR no path
+    #[rustc_then_this_would_need(TraitDefOfItem)] //~ ERROR no path
+    trait Bar {
+        #[rustc_then_this_would_need(FnSignature)] //~ ERROR OK
+        fn do_something(x: WillChange);
+    }
+
+    #[rustc_then_this_would_need(FnSignature)] //~ ERROR OK
+    #[rustc_then_this_would_need(TypeckTables)] //~ ERROR OK
+    fn some_fn(x: WillChange) { }
+
+    #[rustc_then_this_would_need(FnSignature)] //~ ERROR OK
+    #[rustc_then_this_would_need(TypeckTables)] //~ ERROR OK
+    fn new_foo(x: u32, y: u32) -> WillChange {
+        WillChange { x: x, y: y }
+    }
+
+    #[rustc_then_this_would_need(TypeOfItem)] //~ ERROR OK
+    impl WillChange {
+        #[rustc_then_this_would_need(FnSignature)] //~ ERROR OK
+        #[rustc_then_this_would_need(TypeckTables)] //~ ERROR OK
+        fn new(x: u32, y: u32) -> WillChange { loop { } }
+    }
+
+    #[rustc_then_this_would_need(TypeOfItem)] //~ ERROR OK
+    impl WillChange {
+        #[rustc_then_this_would_need(FnSignature)] //~ ERROR OK
+        #[rustc_then_this_would_need(TypeckTables)] //~ ERROR OK
+        fn method(&self, x: u32) { }
+    }
+
+    struct WillChanges {
+        #[rustc_then_this_would_need(TypeOfItem)] //~ ERROR OK
+        x: WillChange,
+        #[rustc_then_this_would_need(TypeOfItem)] //~ ERROR OK
+        y: WillChange
+    }
+
+    // The fields change, not the type itself.
+    #[rustc_then_this_would_need(TypeOfItem)] //~ ERROR no path
+    fn indirect(x: WillChanges) { }
+}
+
+mod invalid_signatures {
+    use WontChange;
+
+    #[rustc_then_this_would_need(TypeOfItem)] //~ ERROR no path
+    trait A {
+        #[rustc_then_this_would_need(FnSignature)] //~ ERROR no path
+        fn do_something_else_twice(x: WontChange);
+    }
+
+    #[rustc_then_this_would_need(FnSignature)] //~ ERROR no path
+    #[rustc_then_this_would_need(TypeckTables)] //~ ERROR no path
+    fn b(x: WontChange) { }
+
+    #[rustc_then_this_would_need(FnSignature)] //~ ERROR no path from `WillChange`
+    #[rustc_then_this_would_need(TypeckTables)] //~ ERROR no path from `WillChange`
+    fn c(x: u32) { }
+}