diff options
Diffstat (limited to 'compiler/rustc_pattern_analysis/src/usefulness.rs')
| -rw-r--r-- | compiler/rustc_pattern_analysis/src/usefulness.rs | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/compiler/rustc_pattern_analysis/src/usefulness.rs b/compiler/rustc_pattern_analysis/src/usefulness.rs index fb94b4afebb..b1c646e9884 100644 --- a/compiler/rustc_pattern_analysis/src/usefulness.rs +++ b/compiler/rustc_pattern_analysis/src/usefulness.rs @@ -1837,7 +1837,9 @@ pub fn compute_match_usefulness<'p, Cx: PatCx>( complexity_limit: usize, ) -> Result<UsefulnessReport<'p, Cx>, Cx::Error> { // The analysis doesn't support deref patterns mixed with normal constructors; error if present. - checks::detect_mixed_deref_pat_ctors(tycx, arms)?; + if tycx.match_may_contain_deref_pats() { + checks::detect_mixed_deref_pat_ctors(tycx, arms)?; + } let mut cx = UsefulnessCtxt { tycx, |