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-rw-r--r--lib/AST/ASTTypeTraits.cpp47
1 files changed, 47 insertions, 0 deletions
diff --git a/lib/AST/ASTTypeTraits.cpp b/lib/AST/ASTTypeTraits.cpp
index baa8e48779a2..ec0671ceb1b5 100644
--- a/lib/AST/ASTTypeTraits.cpp
+++ b/lib/AST/ASTTypeTraits.cpp
@@ -62,6 +62,53 @@ bool ASTNodeKind::isBaseOf(NodeKindId Base, NodeKindId Derived,
StringRef ASTNodeKind::asStringRef() const { return AllKindInfo[KindId].Name; }
+ASTNodeKind ASTNodeKind::getMostDerivedType(ASTNodeKind Kind1,
+ ASTNodeKind Kind2) {
+ if (Kind1.isBaseOf(Kind2)) return Kind2;
+ if (Kind2.isBaseOf(Kind1)) return Kind1;
+ return ASTNodeKind();
+}
+
+ASTNodeKind ASTNodeKind::getMostDerivedCommonAncestor(ASTNodeKind Kind1,
+ ASTNodeKind Kind2) {
+ NodeKindId Parent = Kind1.KindId;
+ while (!isBaseOf(Parent, Kind2.KindId, nullptr) && Parent != NKI_None) {
+ Parent = AllKindInfo[Parent].ParentId;
+ }
+ return ASTNodeKind(Parent);
+}
+
+ASTNodeKind ASTNodeKind::getFromNode(const Decl &D) {
+ switch (D.getKind()) {
+#define DECL(DERIVED, BASE) \
+ case Decl::DERIVED: return ASTNodeKind(NKI_##DERIVED##Decl);
+#define ABSTRACT_DECL(D)
+#include "clang/AST/DeclNodes.inc"
+ };
+ llvm_unreachable("invalid decl kind");
+}
+
+ASTNodeKind ASTNodeKind::getFromNode(const Stmt &S) {
+ switch (S.getStmtClass()) {
+ case Stmt::NoStmtClass: return NKI_None;
+#define STMT(CLASS, PARENT) \
+ case Stmt::CLASS##Class: return ASTNodeKind(NKI_##CLASS);
+#define ABSTRACT_STMT(S)
+#include "clang/AST/StmtNodes.inc"
+ }
+ llvm_unreachable("invalid stmt kind");
+}
+
+ASTNodeKind ASTNodeKind::getFromNode(const Type &T) {
+ switch (T.getTypeClass()) {
+#define TYPE(Class, Base) \
+ case Type::Class: return ASTNodeKind(NKI_##Class##Type);
+#define ABSTRACT_TYPE(Class, Base)
+#include "clang/AST/TypeNodes.def"
+ }
+ llvm_unreachable("invalid type kind");
+}
+
void DynTypedNode::print(llvm::raw_ostream &OS,
const PrintingPolicy &PP) const {
if (const TemplateArgument *TA = get<TemplateArgument>())