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authorFelix S. Klock II <pnkfelix@pnkfx.org>2018-08-30 13:16:59 +0200
committerFelix S. Klock II <pnkfelix@pnkfx.org>2018-09-06 13:00:26 +0200
commit7834c2284801766f9925576e8f4d05d7cb7b23dd (patch)
treeb0676510293a1ab5317291bd79f4136754dae764 /src/test/ui/run-pass/structs-enums/object-lifetime-default-from-ref-struct.rs
parent20ca02569ae3e1dc29962e92739fbab632abf241 (diff)
downloadrust-7834c2284801766f9925576e8f4d05d7cb7b23dd.tar.gz
rust-7834c2284801766f9925576e8f4d05d7cb7b23dd.zip
Migrated slew of run-pass tests to various subdirectories of `ui/run-pass/`.
Diffstat (limited to 'src/test/ui/run-pass/structs-enums/object-lifetime-default-from-ref-struct.rs')
-rw-r--r--src/test/ui/run-pass/structs-enums/object-lifetime-default-from-ref-struct.rs67
1 files changed, 67 insertions, 0 deletions
diff --git a/src/test/ui/run-pass/structs-enums/object-lifetime-default-from-ref-struct.rs b/src/test/ui/run-pass/structs-enums/object-lifetime-default-from-ref-struct.rs
new file mode 100644
index 00000000000..6aaf8920971
--- /dev/null
+++ b/src/test/ui/run-pass/structs-enums/object-lifetime-default-from-ref-struct.rs
@@ -0,0 +1,67 @@
+// Copyright 2015 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 that the lifetime of the enclosing `&` is used for the object
+// lifetime bound.
+
+// pretty-expanded FIXME #23616
+
+#![allow(dead_code)]
+
+use std::fmt::Display;
+
+trait Test {
+    fn foo(&self) { }
+}
+
+struct Ref<'a,T:'a+?Sized> {
+    r: &'a T
+}
+
+struct Ref2<'a,'b,T:'a+'b+?Sized> {
+    a: &'a T,
+    b: &'b T
+}
+
+struct SomeStruct<'a> {
+    t: Ref<'a,Test>,
+    u: Ref<'a,Test+'a>,
+}
+
+fn a<'a>(t: Ref<'a,Test>, mut ss: SomeStruct<'a>) {
+    ss.t = t;
+}
+
+fn b<'a>(t: Ref<'a,Test>, mut ss: SomeStruct<'a>) {
+    ss.u = t;
+}
+
+fn c<'a>(t: Ref<'a,Test+'a>, mut ss: SomeStruct<'a>) {
+    ss.t = t;
+}
+
+fn d<'a>(t: Ref<'a,Test+'a>, mut ss: SomeStruct<'a>) {
+    ss.u = t;
+}
+
+fn e<'a>(_: Ref<'a, Display+'static>) {}
+fn g<'a, 'b>(_: Ref2<'a, 'b, Display+'static>) {}
+
+
+fn main() {
+    // Inside a function body, we can just infer all
+    // lifetimes, to allow Ref<'tmp, Display+'static>
+    // and Ref2<'tmp, 'tmp, Display+'static>.
+    let x = &0 as &(Display+'static);
+    let r: Ref<Display> = Ref { r: x };
+    let r2: Ref2<Display> = Ref2 { a: x, b: x };
+    e(r);
+    g(r2);
+}