averello/swift-mirror
1
0
Fork 0
mirror of https://github.com/apple/swift.git synced 2025-12-21 12:14:44 +01:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #29345 from nate-chandler/generic-metadata-prespecialization-components/enums

Browse Source 
Generic metadata prespecialization: enums
This commit is contained in:
nate-chandler
2020-02-12 13:09:59 -08:00
committed by GitHub
parent 0976e39b71 40e17d9c6f
commit b62871047d
40 changed files with 5931 additions and 70 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
include/swift/ABI/Metadata.h
View File

@@ -1426,6 +1426,32 @@ struct TargetEnumMetadata : public TargetValueMetadata<Runtime> {
return *asWords;
}
bool isCanonicalStaticallySpecializedGenericMetadata() const {
auto *description = getDescription();
if (!description->isGeneric())
return false;
auto *trailingFlags = getTrailingFlags();
if (trailingFlags == nullptr)
return false;
return trailingFlags->isCanonicalStaticSpecialization();
}
const MetadataTrailingFlags *getTrailingFlags() const {
auto description = getDescription();
auto flags = description->getFullGenericContextHeader()
.DefaultInstantiationPattern->PatternFlags;
if (!flags.hasTrailingFlags())
return nullptr;
auto offset =
getGenericArgumentOffset() +
description->getFullGenericContextHeader().Base.getNumArguments() +
(hasPayloadSize() ? 1 : 0);
auto asWords = reinterpret_cast<const void *const *>(this);
return reinterpret_cast<const MetadataTrailingFlags *>(asWords + offset);
}
static constexpr int32_t getGenericArgumentOffset() {
return sizeof(TargetEnumMetadata<Runtime>) / sizeof(StoredPointer);
}