From 9070345c0ef6ceb38aced40aee3deee4ca2f8e17 Mon Sep 17 00:00:00 2001 From: Jorge Aparicio Date: Thu, 22 Jan 2015 21:50:11 -0500 Subject: [PATCH] add tests --- src/test/compile-fail/for-loop-hygiene.rs | 20 +++++++++++++++ src/test/run-pass/for-loop-into-iterator.rs | 27 +++++++++++++++++++++ 2 files changed, 47 insertions(+) create mode 100644 src/test/compile-fail/for-loop-hygiene.rs create mode 100644 src/test/run-pass/for-loop-into-iterator.rs diff --git a/src/test/compile-fail/for-loop-hygiene.rs b/src/test/compile-fail/for-loop-hygiene.rs new file mode 100644 index 000000000000..ff6f848ab598 --- /dev/null +++ b/src/test/compile-fail/for-loop-hygiene.rs @@ -0,0 +1,20 @@ +// 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 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +// for-loops are expanded in the front end, and use an `iter` ident in their expansion. Check that +// `iter` is not accessible inside the for loop. + +#![allow(unstable)] + +fn main() { + for _ in 0..10 { + iter.next(); //~ error: unresolved name `iter` + } +} diff --git a/src/test/run-pass/for-loop-into-iterator.rs b/src/test/run-pass/for-loop-into-iterator.rs new file mode 100644 index 000000000000..7564efbd9e56 --- /dev/null +++ b/src/test/run-pass/for-loop-into-iterator.rs @@ -0,0 +1,27 @@ +// 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 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +// Test that for loops can do what RFC #235 claims + +fn main() { + let mut v = vec![1]; + + for x in &v { + assert_eq!(x, &1); + } + + for x in &mut v { + assert_eq!(x, &mut 1); + } + + for x in v { + assert_eq!(x, 1); + } +}