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Diffstat (limited to 'tests/ui/consts/mozjs-error.rs')
-rw-r--r-- | tests/ui/consts/mozjs-error.rs | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/tests/ui/consts/mozjs-error.rs b/tests/ui/consts/mozjs-error.rs new file mode 100644 index 000000000..7edcadbf2 --- /dev/null +++ b/tests/ui/consts/mozjs-error.rs @@ -0,0 +1,31 @@ +// run-pass +#![allow(dead_code)] +#![allow(non_upper_case_globals)] + +struct CustomAutoRooterVFTable { + trace: unsafe extern "C" fn(this: *mut i32, trc: *mut u32), +} + +unsafe trait CustomAutoTraceable: Sized { + const vftable: CustomAutoRooterVFTable = CustomAutoRooterVFTable { + trace: Self::trace, + }; + + unsafe extern "C" fn trace(this: *mut i32, trc: *mut u32) { + let this = this as *const Self; + let this = this.as_ref().unwrap(); + Self::do_trace(this, trc); + } + + fn do_trace(&self, trc: *mut u32); +} + +unsafe impl CustomAutoTraceable for () { + fn do_trace(&self, _: *mut u32) { + // nop + } +} + +fn main() { + let _ = <()>::vftable; +} |