experiment query caching

jdonszelmann · jdonszelmann · commit 564a024abfb1 · 2025-11-05T12:06:44.000+01:00
diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs
@@ -2746,9 +2746,10 @@ rustc_queries! {
     }
 
     /// Returns a list of all `externally implementable items` crate.
-    query externally_implementable_items(_: CrateNum) -> &'tcx FxIndexMap<DefId, (EiiDecl, FxIndexMap<DefId, EiiImpl>)> {
+    query externally_implementable_items(cnum: CrateNum) -> &'tcx FxIndexMap<DefId, (EiiDecl, FxIndexMap<DefId, EiiImpl>)> {
         arena_cache
         desc { "looking up the externally implementable items of a crate" }
+        cache_on_disk_if { *cnum == LOCAL_CRATE }
         separate_provide_extern
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -2746,9 +2746,10 @@ rustc_queries! {`
`2746`	`2746`	`}`
`2747`	`2747`
`2748`	`2748`	/// Returns a list of all `externally implementable items` crate.
`2749`		`- query externally_implementable_items(_: CrateNum) -> &'tcx FxIndexMap<DefId, (EiiDecl, FxIndexMap<DefId, EiiImpl>)> {`
	`2749`	`+ query externally_implementable_items(cnum: CrateNum) -> &'tcx FxIndexMap<DefId, (EiiDecl, FxIndexMap<DefId, EiiImpl>)> {`
`2750`	`2750`	`arena_cache`
`2751`	`2751`	`desc { "looking up the externally implementable items of a crate" }`
	`2752`	`+ cache_on_disk_if { *cnum == LOCAL_CRATE }`
`2752`	`2753`	`separate_provide_extern`
`2753`	`2754`	`}`
`2754`	`2755`	`}`