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Initial runtime changes to support relative protocol witness tables

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This commit is contained in:
Arnold Schwaighofer
2023-01-23 06:51:59 -08:00
parent a9b69a14c5
commit 770648f161
13 changed files with 563 additions and 6 deletions
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11
stdlib/public/runtime/MetadataLookup.cpp
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@@ -1785,12 +1785,23 @@ public:
if (!assocType) return nullptr;
// Call the associated type access function.
#if SWIFT_STDLIB_USE_RELATIVE_PROTOCOL_WITNESS_TABLES
auto tbl = reinterpret_cast<RelativeWitnessTable *>(
const_cast<WitnessTable *>(witnessTable));
return swift_getAssociatedTypeWitnessRelative(
MetadataState::Abstract,
tbl,
base,
swiftProtocol->getRequirementBaseDescriptor(),
*assocType).Value;
#else
return swift_getAssociatedTypeWitness(
MetadataState::Abstract,
const_cast<WitnessTable *>(witnessTable),
base,
swiftProtocol->getRequirementBaseDescriptor(),
*assocType).Value;
#endif
}
#define REF_STORAGE(Name, ...) \