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Support in-place value metadata initialization in the runtime.

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This commit is contained in:
John McCall
2018-07-24 18:27:42 -04:00
parent e6fc5cb54e
commit dadb51e708
6 changed files with 340 additions and 15 deletions
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15
include/swift/Remote/MetadataReader.h
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@@ -1050,8 +1050,10 @@ private:
sizeof(flags)))
return nullptr;
TypeContextDescriptorFlags typeFlags(flags.getKindSpecificFlags());
unsigned baseSize = 0;
unsigned genericHeaderSize = sizeof(GenericContextDescriptorHeader);
unsigned inPlaceInitSize = 0;
bool hasVTable = false;
switch (auto kind = flags.getKind()) {
case ContextDescriptorKind::Module:
@@ -1067,16 +1069,23 @@ private:
case ContextDescriptorKind::Class:
baseSize = sizeof(TargetClassDescriptor<Runtime>);
genericHeaderSize = sizeof(TypeGenericContextDescriptorHeader);
hasVTable = TypeContextDescriptorFlags(flags.getKindSpecificFlags())
.class_hasVTable();
hasVTable = typeFlags.class_hasVTable();
break;
case ContextDescriptorKind::Enum:
baseSize = sizeof(TargetEnumDescriptor<Runtime>);
genericHeaderSize = sizeof(TypeGenericContextDescriptorHeader);
if (typeFlags.hasInPlaceMetadataInitialization()) {
inPlaceInitSize =
sizeof(TargetInPlaceValueMetadataInitialization<Runtime>);
}
break;
case ContextDescriptorKind::Struct:
baseSize = sizeof(TargetStructDescriptor<Runtime>);
genericHeaderSize = sizeof(TypeGenericContextDescriptorHeader);
if (typeFlags.hasInPlaceMetadataInitialization()) {
inPlaceInitSize =
sizeof(TargetInPlaceValueMetadataInitialization<Runtime>);
}
break;
case ContextDescriptorKind::Protocol:
baseSize = sizeof(TargetProtocolDescriptorRef<Runtime>);
@@ -1122,7 +1131,7 @@ private:
+ header.VTableSize * sizeof(TargetMethodDescriptor<Runtime>);
}
unsigned size = baseSize + genericsSize + vtableSize;
unsigned size = baseSize + genericsSize + vtableSize + inPlaceInitSize;
auto buffer = (uint8_t *)malloc(size);
if (!Reader->readBytes(RemoteAddress(address), buffer, size)) {
free(buffer);