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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 02:49:50 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 02:49:50 +0000 |
commit | 9835e2ae736235810b4ea1c162ca5e65c547e770 (patch) | |
tree | 3fcebf40ed70e581d776a8a4c65923e8ec20e026 /tests/mir-opt/pre-codegen/simple_option_map.rs | |
parent | Releasing progress-linux version 1.70.0+dfsg2-1~progress7.99u1. (diff) | |
download | rustc-9835e2ae736235810b4ea1c162ca5e65c547e770.tar.xz rustc-9835e2ae736235810b4ea1c162ca5e65c547e770.zip |
Merging upstream version 1.71.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/mir-opt/pre-codegen/simple_option_map.rs')
-rw-r--r-- | tests/mir-opt/pre-codegen/simple_option_map.rs | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tests/mir-opt/pre-codegen/simple_option_map.rs b/tests/mir-opt/pre-codegen/simple_option_map.rs new file mode 100644 index 000000000..fb3da68e4 --- /dev/null +++ b/tests/mir-opt/pre-codegen/simple_option_map.rs @@ -0,0 +1,23 @@ +// compile-flags: -O -C debuginfo=0 -Zmir-opt-level=2 +// only-64bit +// ignore-debug + +#[inline(always)] +fn map<T, U, F>(slf: Option<T>, f: F) -> Option<U> +where + F: FnOnce(T) -> U, +{ + match slf { + Some(x) => Some(f(x)), + None => None, + } +} + +// EMIT_MIR simple_option_map.ezmap.PreCodegen.after.mir +pub fn ezmap(x: Option<i32>) -> Option<i32> { + map(x, |n| n + 1) +} + +fn main() { + assert_eq!(None, ezmap(None)); +} |