Fixed issue #263

danielaparker · Aug 12, 2020 · 0dd2ff0 · 0dd2ff0
1 parent 5d8a71f
commit 0dd2ff0
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diff --git a/include/jsoncons/basic_json.hpp b/include/jsoncons/basic_json.hpp
@@ -5582,6 +5582,37 @@ class basic_json
         o = visitor.get_result();
         return is;
     }
+
+    friend basic_json deep_copy(const basic_json& other)
+    {
+        switch (other.storage())
+        {
+            case storage_kind::array_value:
+            {
+                basic_json j(json_array_arg, other.tag(), other.get_allocator());
+
+                for (const auto& item : other.array_range())
+                {
+                    j.push_back(deep_copy(item));
+                }
+                return j;
+            }
+            case storage_kind::object_value:
+            {
+                basic_json j(json_object_arg, other.tag(), other.get_allocator());
+
+                for (const auto& item : other.object_range())
+                {
+                    j.try_emplace(item.key(), deep_copy(item.value()));
+                }
+                return j;
+            }
+            case storage_kind::json_const_pointer:
+                return deep_copy(*(other.cast<json_const_pointer_storage>().value()));
+            default:
+                return other;
+        }
+    }
 };
 
 template <class Json>

diff --git a/tests/src/json_const_pointer_tests.cpp b/tests/src/json_const_pointer_tests.cpp
@@ -266,5 +266,32 @@ TEST_CASE("json_const_pointer identifier tests")
         target = j3;
         CHECK(target == expected);
     }
+
+    SECTION("test2")
+    {
+        json expected = json::parse("[1,2,4,5,6,8]");
+        json target;
+        {
+            json j1(json_array_arg);
+            json j2(json_array_arg);
+            json j3(json_array_arg);
+            const json v1(json_const_pointer_arg, &source.at("reservations"));
+            flatten(v1, "instances", j1);
+
+            const json v2(json_const_pointer_arg, &j1);
+            flatten(v2, "foo", j2);
+
+            const json v3(json_const_pointer_arg, &j2);
+            flatten(v3, "bar", j3);
+
+            target = deep_copy(j3);
+        }
+        CHECK(target == expected);
+        CHECK(target.storage() == storage_kind::array_value);
+        for (const auto& item : target.array_range())
+        {
+            CHECK(item.storage() == storage_kind::uint64_value);
+        }
+    }
 }