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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/overloaded/overloaded-calls-zero-args.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/overloaded/overloaded-calls-zero-args.rs')
-rw-r--r-- | src/test/ui/overloaded/overloaded-calls-zero-args.rs | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/test/ui/overloaded/overloaded-calls-zero-args.rs b/src/test/ui/overloaded/overloaded-calls-zero-args.rs new file mode 100644 index 000000000..69ca88619 --- /dev/null +++ b/src/test/ui/overloaded/overloaded-calls-zero-args.rs @@ -0,0 +1,30 @@ +// run-pass + +#![feature(unboxed_closures, fn_traits)] + +use std::ops::FnMut; + +struct S { + x: i32, + y: i32, +} + +impl FnMut<()> for S { + extern "rust-call" fn call_mut(&mut self, (): ()) -> i32 { + self.x * self.y + } +} + +impl FnOnce<()> for S { + type Output = i32; + extern "rust-call" fn call_once(mut self, args: ()) -> i32 { self.call_mut(args) } +} + +fn main() { + let mut s = S { + x: 3, + y: 3, + }; + let ans = s(); + assert_eq!(ans, 9); +} |