src: move BaseObject subclass dtors out of node_crypto.h

Move destructors for subclasses of `BaseObject` from node_crypto.h
to node_crypto.cc. This removes the need to include base_object-inl.h
when using node_crypto.h in some cases.

Author: addaleax

src/node_crypto.cc

@@ -531,6 +531,9 @@ void SecureContext::Initialize(Environment* env, Local<Object> target) {
   env->set_secure_context_constructor_template(t);
 }
 
+SecureContext::~SecureContext() {
+  Reset();
+}
 
 void SecureContext::New(const FunctionCallbackInfo<Value>& args) {
   Environment* env = Environment::GetCurrent(args);
@@ -4716,6 +4719,10 @@ void Hash::Initialize(Environment* env, Local<Object> target) {
               t->GetFunction(env->context()).ToLocalChecked()).Check();
 }
 
+Hash::~Hash() {
+  if (md_value_ != nullptr)
+    OPENSSL_clear_free(md_value_, md_len_);
+}
 
 void Hash::New(const FunctionCallbackInfo<Value>& args) {
   Environment* env = Environment::GetCurrent(args);
@@ -5956,6 +5963,7 @@ void ECDH::Initialize(Environment* env, Local<Object> target) {
               t->GetFunction(env->context()).ToLocalChecked()).Check();
 }
 
+ECDH::~ECDH() {}
 
 void ECDH::New(const FunctionCallbackInfo<Value>& args) {
   Environment* env = Environment::GetCurrent(args);

src/node_crypto.h

@@ -80,11 +80,9 @@ extern void UseExtraCaCerts(const std::string& file);
 
 void InitCryptoOnce();
 
-class SecureContext : public BaseObject {
+class SecureContext final : public BaseObject {
  public:
-  ~SecureContext() override {
-    Reset();
-  }
+  ~SecureContext() override;
 
   static void Initialize(Environment* env, v8::Local<v8::Object> target);
 
@@ -588,8 +586,10 @@ class Hmac : public BaseObject {
   DeleteFnPtr<HMAC_CTX, HMAC_CTX_free> ctx_;
 };
 
-class Hash : public BaseObject {
+class Hash final : public BaseObject {
  public:
+  ~Hash() override;
+
   static void Initialize(Environment* env, v8::Local<v8::Object> target);
 
   // TODO(joyeecheung): track the memory used by OpenSSL types
@@ -613,11 +613,6 @@ class Hash : public BaseObject {
     MakeWeak();
   }
 
-  ~Hash() override {
-    if (md_value_ != nullptr)
-      OPENSSL_clear_free(md_value_, md_len_);
-  }
-
  private:
   EVPMDPointer mdctx_;
   bool has_md_;
@@ -790,11 +785,9 @@ class DiffieHellman : public BaseObject {
   DHPointer dh_;
 };
 
-class ECDH : public BaseObject {
+class ECDH final : public BaseObject {
  public:
-  ~ECDH() override {
-    group_ = nullptr;
-  }
+  ~ECDH() override;
 
   static void Initialize(Environment* env, v8::Local<v8::Object> target);
   static ECPointPointer BufferToPoint(Environment* env,