Add libclang visitation for __builtin_offsetof's components (fields
and array references).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113556 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/CIndex.cpp b/tools/libclang/CIndex.cpp
index cb2f7b5..35e28ad 100644
--- a/tools/libclang/CIndex.cpp
+++ b/tools/libclang/CIndex.cpp
@@ -1555,11 +1555,34 @@
}
bool CursorVisitor::VisitOffsetOfExpr(OffsetOfExpr *E) {
- // FIXME: Visit fields as well?
+ // Visit the type into which we're computing an offset.
if (Visit(E->getTypeSourceInfo()->getTypeLoc()))
return true;
+
+ // Visit the components of the offsetof expression.
+ for (unsigned I = 0, N = E->getNumComponents(); I != N; ++I) {
+ typedef OffsetOfExpr::OffsetOfNode OffsetOfNode;
+ const OffsetOfNode &Node = E->getComponent(I);
+ switch (Node.getKind()) {
+ case OffsetOfNode::Array:
+ if (Visit(MakeCXCursor(E->getIndexExpr(Node.getArrayExprIndex()),
+ StmtParent, TU)))
+ return true;
+ break;
+
+ case OffsetOfNode::Field:
+ if (Visit(MakeCursorMemberRef(Node.getField(), Node.getRange().getEnd(),
+ TU)))
+ return true;
+ break;
+
+ case OffsetOfNode::Identifier:
+ case OffsetOfNode::Base:
+ continue;
+ }
+ }
- return VisitExpr(E);
+ return false;
}
bool CursorVisitor::VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *E) {