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Remove ProtocolConformance::getSubstitutedGenericParams().

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It's unused and wrong. NFC

Swift SVN r25992
This commit is contained in:
Doug Gregor
2015-03-11 20:42:47 +00:00
parent 1489374e49
commit bc799c3fbc
2 changed files with 0 additions and 47 deletions
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41
lib/AST/ProtocolConformance.cpp
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@@ -147,47 +147,6 @@ static GenericParamList *genericParamListForType(Type ty) {
return nullptr;
}
/// Return the list of generic params that were substituted if this conformance
/// was specialized somewhere along the inheritence chain.
GenericParamList *ProtocolConformance::getSubstitutedGenericParams() const {
const ProtocolConformance *C = this;
bool FoundSpecializedConformance = false;
while (true) {
switch (C->getKind()) {
case ProtocolConformanceKind::Inherited:
// If we have an inherited protocol conformance, grab our inherited
// conformance and continue. Inheritence in it of itself does not yield
// additional type variables.
C = cast<InheritedProtocolConformance>(C)->getInheritedConformance();
continue;
case ProtocolConformanceKind::Specialized:
// If we have a specialized protocol conformance, since we do not support
// currently partial specialization, we know that it can not have any open
// type variables.
C = cast<SpecializedProtocolConformance>(C)->getGenericConformance();
FoundSpecializedConformance = true;
continue;
case ProtocolConformanceKind::Normal: {
// If we have a normal protocol conformance and we have not seen a
// specialized protocol conformance yet, we know that the normal protocol
// conformance can only contain open types. Bail.
if (!FoundSpecializedConformance)
return nullptr;
// Otherwise, this must be the original conformance containing the
// specialized generic parameters. Attempt to create the param list.
auto normal = cast<NormalProtocolConformance>(C);
if (auto ext = dyn_cast<ExtensionDecl>(normal->getDeclContext()))
return ext->getGenericParams();
return genericParamListForType(C->getType());
}
}
}
}
GenericParamList *ProtocolConformance::getGenericParams() const {
const ProtocolConformance *C = this;