================
@@ -246,3 +270,119 @@
lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEndCreator(
return (valobj_sp ? new LibcxxStdUnorderedMapSyntheticFrontEnd(valobj_sp)
: nullptr);
}
+
+lldb_private::formatters::LibCxxUnorderedMapIteratorSyntheticFrontEnd::
+ LibCxxUnorderedMapIteratorSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp)
+ : SyntheticChildrenFrontEnd(*valobj_sp) {
+ if (valobj_sp)
+ Update();
+}
+
+lldb::ChildCacheState lldb_private::formatters::
+ LibCxxUnorderedMapIteratorSyntheticFrontEnd::Update() {
+ m_pair_sp.reset();
+
+ ValueObjectSP valobj_sp = m_backend.GetSP();
+ if (!valobj_sp)
+ return lldb::ChildCacheState::eRefetch;
+
+ TargetSP target_sp(valobj_sp->GetTargetSP());
+
+ if (!target_sp)
+ return lldb::ChildCacheState::eRefetch;
+
+ // Get the unordered_map::iterator
+ // m_backend is an 'unordered_map::iterator', aka a
+ // '__hash_map_iterator<__hash_table::iterator>'
+ //
+ // __hash_map_iterator::__i_ is a __hash_table::iterator (aka
+ // __hash_iterator<__node_pointer>)
+ auto hash_iter_sp = valobj_sp->GetChildMemberWithName("__i_");
+ if (!hash_iter_sp)
+ return lldb::ChildCacheState::eRefetch;
+
+ // Type is '__hash_iterator<__node_pointer>'
+ auto hash_iter_type = hash_iter_sp->GetCompilerType();
+ if (!hash_iter_type.IsValid())
+ return lldb::ChildCacheState::eRefetch;
+
+ // Type is '__node_pointer'
+ auto node_pointer_type = hash_iter_type.GetTypeTemplateArgument(0);
+ if (!node_pointer_type.IsValid())
+ return lldb::ChildCacheState::eRefetch;
+
+ // Cast the __hash_iterator to a __node_pointer (which stores our key/value
+ // pair)
+ auto hash_node_sp = hash_iter_sp->Cast(node_pointer_type);
+ if (!hash_node_sp)
+ return lldb::ChildCacheState::eRefetch;
+
+ auto key_value_sp = hash_node_sp->GetChildMemberWithName("__value_");
+ if (!key_value_sp) {
+ // clang-format off
+ // Since D101206 (ba79fb2e1f), libc++ wraps the `__value_` in an
+ // anonymous union.
+ // Child 0: __hash_node_base base class
+ // Child 1: __hash_
+ // Child 2: anonymous union
+ // clang-format on
+ auto anon_union_sp = hash_node_sp->GetChildAtIndex(2);
+ if (!anon_union_sp)
+ return lldb::ChildCacheState::eRefetch;
+
+ key_value_sp = anon_union_sp->GetChildMemberWithName("__value_");
+ if (!key_value_sp)
+ return lldb::ChildCacheState::eRefetch;
+ }
+
+ // Create the synthetic child, which is a pair where the key and value can be
+ // retrieved // by querying the synthetic frontend for
----------------
labath wrote:
remove extra `//`
https://github.com/llvm/llvm-project/pull/97754
_______________________________________________
lldb-commits mailing list
lldb-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
