1 files changed, 12 insertions, 5 deletions
diff --git a/lldb/source/Plugins/Language/CPlusPlus/LibStdcpp.cpp b/lldb/source/Plugins/Language/CPlusPlus/LibStdcpp.cpp
index 5abb3d5..86bb575 100644
--- a/lldb/source/Plugins/Language/CPlusPlus/LibStdcpp.cpp
+++ b/lldb/source/Plugins/Language/CPlusPlus/LibStdcpp.cpp
@@ -43,7 +43,7 @@ class LibstdcppMapIteratorSyntheticFrontEnd : public SyntheticChildrenFrontEnd {
 public:
   explicit LibstdcppMapIteratorSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp);
 
-  uint32_t CalculateNumChildren() override;
+  llvm::Expected<uint32_t> CalculateNumChildren() override;
 
   lldb::ValueObjectSP GetChildAtIndex(uint32_t idx) override;
 
@@ -64,7 +64,7 @@ class LibStdcppSharedPtrSyntheticFrontEnd : public SyntheticChildrenFrontEnd {
 public:
   explicit LibStdcppSharedPtrSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp);
 
-  uint32_t CalculateNumChildren() override;
+  llvm::Expected<uint32_t> CalculateNumChildren() override;
 
   lldb::ValueObjectSP GetChildAtIndex(uint32_t idx) override;
 
@@ -132,7 +132,8 @@ lldb::ChildCacheState LibstdcppMapIteratorSyntheticFrontEnd::Update() {
   return lldb::ChildCacheState::eReuse;
 }
 
-uint32_t LibstdcppMapIteratorSyntheticFrontEnd::CalculateNumChildren() {
+llvm::Expected<uint32_t>
+LibstdcppMapIteratorSyntheticFrontEnd::CalculateNumChildren() {
   return 2;
 }
 
@@ -219,7 +220,10 @@ lldb::ChildCacheState VectorIteratorSyntheticFrontEnd::Update() {
   return lldb::ChildCacheState::eRefetch;
 }
 
-uint32_t VectorIteratorSyntheticFrontEnd::CalculateNumChildren() { return 1; }
+llvm::Expected<uint32_t>
+VectorIteratorSyntheticFrontEnd::CalculateNumChildren() {
+  return 1;
+}
 
 lldb::ValueObjectSP
 VectorIteratorSyntheticFrontEnd::GetChildAtIndex(uint32_t idx) {
@@ -371,7 +375,10 @@ LibStdcppSharedPtrSyntheticFrontEnd::LibStdcppSharedPtrSyntheticFrontEnd(
     Update();
 }
 
-uint32_t LibStdcppSharedPtrSyntheticFrontEnd::CalculateNumChildren() { return 1; }
+llvm::Expected<uint32_t>
+LibStdcppSharedPtrSyntheticFrontEnd::CalculateNumChildren() {
+  return 1;
+}
 
 lldb::ValueObjectSP
 LibStdcppSharedPtrSyntheticFrontEnd::GetChildAtIndex(uint32_t idx) {