[GenericEnvironment] For opened pack element environments, only include element type

parameters whose originating packs are in a given shape equivalence class.
2025-12-14 20:36:38 +01:00 · 2023-01-07 00:39:48 -08:00
parent 715de13dbf
commit 2d893d23bf
11 changed files with 86 additions and 28 deletions
--- a/lib/Serialization/ModuleFormat.h
+++ b/lib/Serialization/ModuleFormat.h
@@ -1759,7 +1759,7 @@ namespace decls_block {
  using GenericEnvironmentLayout = BCRecordLayout<
    GENERIC_ENVIRONMENT,
    BCFixed<1>,                  // GenericEnvironmentKind
-    TypeIDField,                 // existential type
+    TypeIDField,                 // existential type or shape class
    GenericSignatureIDField,     // parent signature
    SubstitutionMapIDField       // substitution map
  >;