visitor.region_maps.mark_as_terminating_scope(otherwise.id);
}
- ast::ExprIf(_, then, None) => {
+ ast::ExprIf(expr, then, None) => {
+ visitor.region_maps.mark_as_terminating_scope(expr.id);
visitor.region_maps.mark_as_terminating_scope(then.id);
}
- ast::ExprLoop(body, _) |
- ast::ExprWhile(_, body) => {
+ ast::ExprLoop(body, _) => {
+ visitor.region_maps.mark_as_terminating_scope(body.id);
+ }
+
+ ast::ExprWhile(expr, body) => {
+ visitor.region_maps.mark_as_terminating_scope(expr.id);
visitor.region_maps.mark_as_terminating_scope(body.id);
}
--- /dev/null
+// 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.
+
+
+// This test verifies that temporaries created for `while`'s
+// and `if` conditions are correctly cleaned up.
+
+struct Temporary;
+
+static mut DROPPED: int = 0;
+
+impl Drop for Temporary {
+ fn drop(&mut self) {
+ unsafe { DROPPED += 1; }
+ }
+}
+
+impl Temporary {
+ fn do(&self) -> bool {true}
+}
+
+fn borrow() -> ~Temporary { ~Temporary }
+
+
+pub fn main() {
+ let mut i = 0;
+
+ // This loop's condition
+ // should call `Temporary`'s
+ // `drop` 6 times.
+ while borrow().do() {
+ i += 1;
+ if i > 5 {
+ break;
+ }
+ }
+
+ // This if condition should
+ // call it 1 time
+ if borrow().do() {
+ unsafe { assert_eq!(DROPPED, 7) }
+ }
+}