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| -rw-r--r-- | src/test/run-pass/const-vec-of-fns.rs | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/test/run-pass/const-vec-of-fns.rs b/src/test/run-pass/const-vec-of-fns.rs new file mode 100644 index 00000000000..bf7472aeb36 --- /dev/null +++ b/src/test/run-pass/const-vec-of-fns.rs @@ -0,0 +1,27 @@ +// Copyright 2013 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. + +/*! + * Try to double-check that const fns have the right size (with or + * without dummy env ptr, as appropriate) by iterating a size-2 array. + * If the const size differs from the runtime size, the second element + * should be read as a null or otherwise wrong pointer and crash. + */ + +fn f() { } +const bare_fns: &[extern fn()] = &[f, f]; +// NOTE Why does this not type without the struct? +struct S(&fn()); +const closures: &[S] = &[S(f), S(f)]; + +pub fn main() { + for bare_fns.each |&bare_fn| { bare_fn() } + for closures.each |&closure| { (*closure)() } +} |