[libclang 4/8] Add the clang_Type_getNullability() API
Summary:
This patch adds a clang-c API for querying the nullability of an AttributedType.
The test here also tests D49081
Reviewers: yvvan, jbcoe
Reviewed By: yvvan
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D49082
llvm-svn: 338809
diff --git a/clang/include/clang-c/Index.h b/clang/include/clang-c/Index.h
index 8e281ca..712b1ef 100644
--- a/clang/include/clang-c/Index.h
+++ b/clang/include/clang-c/Index.h
@@ -3745,6 +3745,33 @@
*/
CINDEX_LINKAGE unsigned clang_Type_isTransparentTagTypedef(CXType T);
+enum CXTypeNullabilityKind {
+ /**
+ * Values of this type can never be null.
+ */
+ CXTypeNullability_NonNull = 0,
+ /**
+ * Values of this type can be null.
+ */
+ CXTypeNullability_Nullable = 1,
+ /**
+ * Whether values of this type can be null is (explicitly)
+ * unspecified. This captures a (fairly rare) case where we
+ * can't conclude anything about the nullability of the type even
+ * though it has been considered.
+ */
+ CXTypeNullability_Unspecified = 2,
+ /**
+ * Nullability is not applicable to this type.
+ */
+ CXTypeNullability_Invalid = 3
+};
+
+/**
+ * Retrieve the nullability kind of a pointer type.
+ */
+CINDEX_LINKAGE enum CXTypeNullabilityKind clang_Type_getNullability(CXType T);
+
/**
* List the possible error codes for \c clang_Type_getSizeOf,
* \c clang_Type_getAlignOf, \c clang_Type_getOffsetOf and