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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/unboxed-closures/unboxed-closures-by-ref.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/unboxed-closures/unboxed-closures-by-ref.rs')
-rw-r--r-- | src/test/ui/unboxed-closures/unboxed-closures-by-ref.rs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/test/ui/unboxed-closures/unboxed-closures-by-ref.rs b/src/test/ui/unboxed-closures/unboxed-closures-by-ref.rs new file mode 100644 index 000000000..cf4d4d3e1 --- /dev/null +++ b/src/test/ui/unboxed-closures/unboxed-closures-by-ref.rs @@ -0,0 +1,24 @@ +// run-pass +// Test by-ref capture of environment in unboxed closure types + +fn call_fn<F: Fn()>(f: F) { + f() +} + +fn call_fn_mut<F: FnMut()>(mut f: F) { + f() +} + +fn call_fn_once<F: FnOnce()>(f: F) { + f() +} + +fn main() { + let mut x = 0_usize; + let y = 2_usize; + + call_fn(|| assert_eq!(x, 0)); + call_fn_mut(|| x += y); + call_fn_once(|| x += y); + assert_eq!(x, y * 2); +} |