Implement a simple hash function for libclang cursors
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119876 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/CIndex.cpp b/tools/libclang/CIndex.cpp
index 9116667..2eb2096 100644
--- a/tools/libclang/CIndex.cpp
+++ b/tools/libclang/CIndex.cpp
@@ -3137,6 +3137,15 @@
return X == Y;
}
+unsigned clang_hashCursor(CXCursor C) {
+ unsigned Index = 0;
+ if (clang_isExpression(C.kind) || clang_isStatement(C.kind))
+ Index = 1;
+
+ return llvm::DenseMapInfo<std::pair<unsigned, void*> >::getHashValue(
+ std::make_pair(C.kind, C.data[Index]));
+}
+
unsigned clang_isInvalid(enum CXCursorKind K) {
return K >= CXCursor_FirstInvalid && K <= CXCursor_LastInvalid;
}