Update gdb test suite for Rust

This updates the gdb test suite for Rust.

2016-05-17  Tom Tromey  <tom@tromey.com>
	    Manish Goregaokar <manishsmail@gmail.com>

	* lib/rust-support.exp: New file.
	* lib/gdb.exp (skip_rust_tests): New proc.
	(build_executable_from_specs): Handle rust.
	* lib/future.exp (gdb_find_rustc): New proc.
	(gdb_default_target_compile): Handle rust.
	* gdb.rust/expr.exp: New file.
	* gdb.rust/generics.exp: New file.
	* gdb.rust/generics.rs: New file.
	* gdb.rust/methods.exp: New file.
	* gdb.rust/methods.rs: New file.
	* gdb.rust/modules.exp: New file.
	* gdb.rust/modules.rs: New file.
	* gdb.rust/simple.exp: New file.
	* gdb.rust/simple.rs: New file.

1 files changed, 129 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.rust/methods.rs b/gdb/testsuite/gdb.rust/methods.rs
new file mode 100644
index 0000000..d372214
--- /dev/null
+++ b/gdb/testsuite/gdb.rust/methods.rs
@@ -0,0 +1,129 @@
+// Copyright (C) 2016 Free Software Foundation, Inc.
+
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#![allow(dead_code)]
+#![allow(unused_variables)]
+#![allow(unused_assignments)]
+
+
+pub trait Whatever {
+    fn whatever(&self) -> i32;
+    fn static_i32(x: i32) -> Self;
+}
+
+impl Whatever for i32 {
+    fn whatever(&self) -> i32 {
+        *self                   // set breakpoint 2 here
+    }
+
+    fn static_i32(x: i32) -> i32 {
+        x
+    }
+}
+
+pub struct HasMethods {
+    value: i32
+}
+
+impl HasMethods {
+    pub fn new() -> HasMethods {
+        HasMethods { value: 0 }
+    }
+
+    pub fn incr(&mut self) -> &mut HasMethods {
+        self.value += 1;
+        self
+    }
+
+    pub fn take(self) -> HasMethods {
+        self
+    }
+}
+
+impl Whatever for HasMethods {
+    fn whatever(&self) -> i32 {
+        self.value
+    }
+
+    fn static_i32(x: i32) -> HasMethods {
+        HasMethods{value: x}
+    }
+}
+
+enum SomeEnum {
+    One,
+    Two,
+    Three(i32),
+    Four{x: i32}
+}
+
+impl SomeEnum {
+    fn value(&self) -> i32 {
+        match *self {
+            SomeEnum::Three(x) => x,
+            SomeEnum::Four{x} => x,
+            _ => 0
+        }
+    }
+
+    fn mut_value(&mut self) -> i32 {
+        match *self {
+            SomeEnum::Three(x) => x,
+            SomeEnum::Four{x} => x,
+            _ => 0
+        }
+    }
+
+    fn take_value(self) -> (i32, SomeEnum) {
+        (match self {
+            SomeEnum::Three(x) => x,
+            SomeEnum::Four{x} => x,
+            _ => 0
+        }, self)
+    }
+}
+
+enum SimpleEnum {
+    One,
+    Two,
+    Three
+}
+
+impl SimpleEnum {
+    fn value(&self) -> i32 {
+        match *self {
+            SimpleEnum::One => 1,
+            SimpleEnum::Two => 2,
+            SimpleEnum::Three => 452,
+        }
+    }
+}
+
+fn main() {
+    let mut a = SomeEnum::Three(23);
+    let av = a.value();
+    let amv = (&mut a).mut_value();
+    let atv = a.take_value();
+    let b = SomeEnum::Four{x: 24};
+    let bv = b.value();
+    let c = SimpleEnum::Three;
+    let d = c.value();
+    let mut x = HasMethods::new();
+    x.incr();               // set breakpoint 1 here
+    (&mut x).incr();
+    let y = 23i32.whatever();
+    println!("{}", y);
+    let z = x.take();
+}