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Replace nominal type descriptors with a hierarchy of context descriptors.

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This new format more efficiently represents existing information, while
more accurately encoding important information about nested generic
contexts with same-type and layout constraints that need to be evaluated
at runtime. It's also designed with an eye to forward- and
backward-compatible expansion for ABI stability with future Swift
versions.
This commit is contained in:
Joe Groff
2017-12-12 09:57:36 -08:00
parent 9ac1dc80b0
commit a7a3b17597
58 changed files with 3418 additions and 1291 deletions
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8
lib/RemoteAST/RemoteAST.cpp
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@@ -138,7 +138,7 @@ public:
return createNominalTypeDecl(node);
}
NominalTypeDecl *createNominalTypeDecl(const Demangle::NodePointer &node);
ProtocolDecl *createProtocolDecl(const Demangle::NodePointer &node) {
@@ -1107,8 +1107,8 @@ public:
Result<MetadataKind>
getKindForRemoteTypeMetadata(RemoteAddress metadata) override {
auto result = Reader.readKindFromMetadata(metadata.getAddressData());
if (result.first)
return result.second;
if (result)
return *result;
return getFailure<MetadataKind>();
}
@@ -1145,7 +1145,7 @@ public:
Result<RemoteAddress>
getHeapMetadataForObject(RemoteAddress object) override {
auto result = Reader.readMetadataFromInstance(object.getAddressData());
if (result.first) return RemoteAddress(result.second);
if (result) return RemoteAddress(*result);
return getFailure<RemoteAddress>();
}
};