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Ryan Cumming 2018-07-23 19:37:41 +10:00
parent 89a4558056
commit 7c74c3e508
1 changed files with 3 additions and 2 deletions
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5
clippy_lints/src/trivially_copy_pass_by_ref.rs
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@ -121,8 +121,9 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for TriviallyCopyPassByRef {
let fn_sig = cx.tcx.fn_sig(fn_def_id); let fn_sig = cx.tcx.fn_sig(fn_def_id);
let fn_sig = cx.tcx.erase_late_bound_regions(&fn_sig); let fn_sig = cx.tcx.erase_late_bound_regions(&fn_sig);
// Use lifetimes to determine if we're returning a reference to the argument. In that case // Use lifetimes to determine if we're returning a reference to the
// we can't switch to pass-by-value as the argument will not live long enough. // argument. In that case we can't switch to pass-by-value as the
// argument will not live long enough.
let output_lt = if let TypeVariants::TyRef(output_lt, _, _) = fn_sig.output().sty { let output_lt = if let TypeVariants::TyRef(output_lt, _, _) = fn_sig.output().sty {
Some(output_lt) Some(output_lt)
} else { } else {