Introduce clang_getCursorReferenced, to get a cursor pointing at the
entity that a particular cursor references.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93830 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/CIndex/CIndex.cpp b/tools/CIndex/CIndex.cpp
index 9e74083..355b80d 100644
--- a/tools/CIndex/CIndex.cpp
+++ b/tools/CIndex/CIndex.cpp
@@ -1006,7 +1006,46 @@
Decl *D = getCursorDecl(C);
return translateSourceRange(D->getASTContext(), D->getSourceRange());
}
+
+CXCursor clang_getCursorReferenced(CXCursor C) {
+ if (clang_isDeclaration(C.kind) || clang_isDefinition(C.kind))
+ return C;
+ if (!clang_isReference(C.kind))
+ return clang_getNullCursor();
+
+ switch (C.kind) {
+ case CXCursor_ObjCSuperClassRef:
+ return MakeCXCursor(getCursorObjCSuperClassRef(C).first);
+
+ case CXCursor_ObjCProtocolRef: {
+ return MakeCXCursor(getCursorObjCProtocolRef(C).first);
+
+ case CXCursor_ObjCClassRef:
+ return MakeCXCursor(getCursorObjCClassRef(C).first);
+
+ case CXCursor_ObjCSelectorRef:
+ case CXCursor_ObjCIvarRef:
+ case CXCursor_VarRef:
+ case CXCursor_FunctionRef:
+ case CXCursor_EnumConstantRef:
+ case CXCursor_MemberRef: {
+ Decl *D = getDeclFromExpr(getCursorExpr(C));
+ if (D)
+ return MakeCXCursor(D);
+ break;
+ }
+
+ default:
+ // We would prefer to enumerate all non-reference cursor kinds here.
+ llvm_unreachable("Unhandled reference cursor kind");
+ break;
+ }
+ }
+
+ return clang_getNullCursor();
+}
+
void clang_getDefinitionSpellingAndExtent(CXCursor C,
const char **startBuf,
const char **endBuf,
diff --git a/tools/CIndex/CIndex.exports b/tools/CIndex/CIndex.exports
index 0272f37..71522fd 100644
--- a/tools/CIndex/CIndex.exports
+++ b/tools/CIndex/CIndex.exports
@@ -18,6 +18,7 @@
_clang_getCursorKind
_clang_getCursorKindSpelling
_clang_getCursorLocation
+_clang_getCursorReferenced
_clang_getCursorSpelling
_clang_getCursorUSR
_clang_getDeclColumn
diff --git a/tools/c-index-test/c-index-test.c b/tools/c-index-test/c-index-test.c
index 2f113cf..34332d3 100644
--- a/tools/c-index-test/c-index-test.c
+++ b/tools/c-index-test/c-index-test.c
@@ -47,16 +47,18 @@
if (clang_isInvalid(Cursor.kind))
printf("Invalid Cursor => %s", clang_getCursorKindSpelling(Cursor.kind));
else {
- CXDecl DeclReferenced;
CXString string;
+ CXCursor Referenced;
string = clang_getCursorSpelling(Cursor);
printf("%s=%s", clang_getCursorKindSpelling(Cursor.kind),
clang_getCString(string));
clang_disposeString(string);
- DeclReferenced = clang_getCursorDecl(Cursor);
- if (DeclReferenced)
- printf(":%d:%d", clang_getDeclLine(DeclReferenced),
- clang_getDeclColumn(DeclReferenced));
+
+ Referenced = clang_getCursorReferenced(Cursor);
+ if (!clang_equalCursors(Referenced, clang_getNullCursor())) {
+ CXSourceLocation Loc = clang_getCursorLocation(Referenced);
+ printf(":%d:%d", Loc.line, Loc.column);
+ }
}
}