Auto merge of #123482 - WaffleLapkin:never-type-fallback-to-self, r=<…

…try> [experiment] Set never type fallback = `!` r? ghost cc `@traviscross`
rust-lang · Apr 5, 2024 · 2d84f27 · 2d84f27
2 parents 385fa9d + 1868b33
commit 2d84f27
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs
@@ -438,6 +438,11 @@ fn parse_never_type_options_attr(
     }
 
     let fallback = fallback.unwrap_or_else(|| {
+        if true {
+            // For a crater experiment, set `fallback = !`
+            return FallbackToNever;
+        }
+
         if tcx.features().never_type_fallback { FallbackToNiko } else { FallbackToUnit }
     });