src: add public virtual destructor for KVStore

As KVStore has derived classes, it is essential to
declare a public virtual destructor in the base
KVStore class. Otherwise, deleting derived class
instances using base class pointers would
potentially cause undefined behaviour.

Additionally, since we are implementing a non-default
destructor, the special member functions have also
been implemented in order to abide by the rule of five.

PR-URL: https://github.com/nodejs/node/pull/28737
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>
This commit is contained in:
GauthamBanasandra 2019-07-18 00:11:38 +05:30 committed by Rich Trott
parent 49144ab64d
commit 7a1f33c394

View File

@ -609,6 +609,13 @@ class AsyncRequest : public MemoryRetainer {
class KVStore {
public:
KVStore() = default;
virtual ~KVStore() = default;
KVStore(const KVStore&) = delete;
KVStore& operator=(const KVStore&) = delete;
KVStore(KVStore&&) = delete;
KVStore& operator=(KVStore&&) = delete;
virtual v8::Local<v8::String> Get(v8::Isolate* isolate,
v8::Local<v8::String> key) const = 0;
virtual void Set(v8::Isolate* isolate,