From b760c56f4551872f20b355bec12cb63018381419 Mon Sep 17 00:00:00 2001
From: Niko Matsakis <niko@alum.mit.edu>
Date: Sat, 21 Mar 2015 21:16:57 -0400
Subject: [PATCH] Update borrowck tests to test that index is by-move now

---
 ...orrowck-overloaded-index-move-from-vec.rs} |  2 +-
 .../borrowck-overloaded-index-move-index.rs   | 74 +++++++++++++++++++
 ...=> borrowck-overloaded-index-ref-index.rs} | 14 ++--
 3 files changed, 82 insertions(+), 8 deletions(-)
 rename src/test/compile-fail/{borrowck-overloaded-index-2.rs => borrowck-overloaded-index-move-from-vec.rs} (95%)
 create mode 100644 src/test/compile-fail/borrowck-overloaded-index-move-index.rs
 rename src/test/compile-fail/{borrowck-overloaded-index.rs => borrowck-overloaded-index-ref-index.rs} (82%)

diff --git a/src/test/compile-fail/borrowck-overloaded-index-2.rs b/src/test/compile-fail/borrowck-overloaded-index-move-from-vec.rs
similarity index 95%
rename from src/test/compile-fail/borrowck-overloaded-index-2.rs
rename to src/test/compile-fail/borrowck-overloaded-index-move-from-vec.rs
index 58668b73cbffb..1b62d9c326d77 100644
--- a/src/test/compile-fail/borrowck-overloaded-index-2.rs
+++ b/src/test/compile-fail/borrowck-overloaded-index-move-from-vec.rs
@@ -19,7 +19,7 @@ struct MyVec<T> {
 impl<T> Index<usize> for MyVec<T> {
     type Output = T;
 
-    fn index(&self, &i: &usize) -> &T {
+    fn index(&self, i: usize) -> &T {
         &self.data[i]
     }
 }
diff --git a/src/test/compile-fail/borrowck-overloaded-index-move-index.rs b/src/test/compile-fail/borrowck-overloaded-index-move-index.rs
new file mode 100644
index 0000000000000..d8615d1905338
--- /dev/null
+++ b/src/test/compile-fail/borrowck-overloaded-index-move-index.rs
@@ -0,0 +1,74 @@
+// Copyright 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.
+
+use std::ops::{Index, IndexMut};
+
+struct Foo {
+    x: isize,
+    y: isize,
+}
+
+impl Index<String> for Foo {
+    type Output = isize;
+
+    fn index(&self, z: String) -> &isize {
+        if z == "x" {
+            &self.x
+        } else {
+            &self.y
+        }
+    }
+}
+
+impl IndexMut<String> for Foo {
+    fn index_mut(&mut self, z: String) -> &mut isize {
+        if z == "x" {
+            &mut self.x
+        } else {
+            &mut self.y
+        }
+    }
+}
+
+struct Bar {
+    x: isize,
+}
+
+impl Index<isize> for Bar {
+    type Output = isize;
+
+    fn index<'a>(&'a self, z: isize) -> &'a isize {
+        &self.x
+    }
+}
+
+fn main() {
+    let mut f = Foo {
+        x: 1,
+        y: 2,
+    };
+    let mut s = "hello".to_string();
+    let rs = &mut s;
+
+    println!("{}", f[s]);
+    //~^ ERROR cannot move out of `s` because it is borrowed
+
+    f[s] = 10;
+    //~^ ERROR cannot move out of `s` because it is borrowed
+    //~| ERROR use of moved value: `s`
+
+    let s = Bar {
+        x: 1,
+    };
+    let i = 2;
+    let _j = &i;
+    println!("{}", s[i]); // no error, i is copy
+    println!("{}", s[i]);
+}
diff --git a/src/test/compile-fail/borrowck-overloaded-index.rs b/src/test/compile-fail/borrowck-overloaded-index-ref-index.rs
similarity index 82%
rename from src/test/compile-fail/borrowck-overloaded-index.rs
rename to src/test/compile-fail/borrowck-overloaded-index-ref-index.rs
index 2d752abe7e3c2..4c50caf49768d 100644
--- a/src/test/compile-fail/borrowck-overloaded-index.rs
+++ b/src/test/compile-fail/borrowck-overloaded-index-ref-index.rs
@@ -15,10 +15,10 @@ struct Foo {
     y: isize,
 }
 
-impl Index<String> for Foo {
+impl<'a> Index<&'a String> for Foo {
     type Output = isize;
 
-    fn index<'a>(&'a self, z: &String) -> &'a isize {
+    fn index(&self, z: &String) -> &isize {
         if *z == "x" {
             &self.x
         } else {
@@ -27,8 +27,8 @@ impl Index<String> for Foo {
     }
 }
 
-impl IndexMut<String> for Foo {
-    fn index_mut<'a>(&'a mut self, z: &String) -> &'a mut isize {
+impl<'a> IndexMut<&'a String> for Foo {
+    fn index_mut(&mut self, z: &String) -> &mut isize {
         if *z == "x" {
             &mut self.x
         } else {
@@ -44,7 +44,7 @@ struct Bar {
 impl Index<isize> for Bar {
     type Output = isize;
 
-    fn index<'a>(&'a self, z: &isize) -> &'a isize {
+    fn index<'a>(&'a self, z: isize) -> &'a isize {
         &self.x
     }
 }
@@ -56,9 +56,9 @@ fn main() {
     };
     let mut s = "hello".to_string();
     let rs = &mut s;
-    println!("{}", f[s]);
+    println!("{}", f[&s]);
     //~^ ERROR cannot borrow `s` as immutable because it is also borrowed as mutable
-    f[s] = 10;
+    f[&s] = 10;
     //~^ ERROR cannot borrow `s` as immutable because it is also borrowed as mutable
     let s = Bar {
         x: 1,