From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:13 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/structs-enums/struct-order-of-eval-3.rs | 37 ++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 tests/ui/structs-enums/struct-order-of-eval-3.rs (limited to 'tests/ui/structs-enums/struct-order-of-eval-3.rs') diff --git a/tests/ui/structs-enums/struct-order-of-eval-3.rs b/tests/ui/structs-enums/struct-order-of-eval-3.rs new file mode 100644 index 000000000..60887f8d0 --- /dev/null +++ b/tests/ui/structs-enums/struct-order-of-eval-3.rs @@ -0,0 +1,37 @@ +// run-pass +// Checks that functional-record-update order-of-eval is as expected +// even when no Drop-implementations are involved. + +use std::sync::atomic::{Ordering, AtomicUsize}; + +struct W { wrapped: u32 } +struct S { f0: W, _f1: i32 } + +pub fn main() { + const VAL: u32 = 0x89AB_CDEF; + let w = W { wrapped: VAL }; + let s = S { + f0: { event(0x01); W { wrapped: w.wrapped + 1 } }, + ..S { + f0: { event(0x02); w}, + _f1: 23 + } + }; + assert_eq!(s.f0.wrapped, VAL + 1); + let actual = event_log(); + let expect = 0x01_02; + assert!(expect == actual, + "expect: 0x{:x} actual: 0x{:x}", expect, actual); +} + +static LOG: AtomicUsize = AtomicUsize::new(0); + +fn event_log() -> usize { + LOG.load(Ordering::SeqCst) +} + +fn event(tag: u8) { + let old_log = LOG.load(Ordering::SeqCst); + let new_log = (old_log << 8) + tag as usize; + LOG.store(new_log, Ordering::SeqCst); +} -- cgit v1.2.3