src: add proper MemoryInfoName to wrappers

- Use camel case names for memory retainers inherited from AsyncWrap
  instead of their provider names (which are all in upper case)
- Assign class names to wraps so that they appear in the heap snapshot
  as nodes with class names as node names. Previously some nodes are
  named with reference names, which are supposed to be edge names
  instead.

PR-URL: https://github.com/nodejs/node/pull/21939
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/tcp_wrap.h b/src/tcp_wrap.h
index d6ca930609..829c1b22bf 100644
--- a/src/tcp_wrap.h
+++ b/src/tcp_wrap.h
@@ -48,6 +48,17 @@ class TCPWrap : public ConnectionWrap<TCPWrap, uv_tcp_t> {
     tracker->TrackThis(this);
   }
 
+  std::string MemoryInfoName() const override {
+    switch (provider_type()) {
+      case ProviderType::PROVIDER_TCPWRAP:
+        return "TCPSocketWrap";
+      case ProviderType::PROVIDER_TCPSERVERWRAP:
+        return "TCPServerWrap";
+      default:
+        UNREACHABLE();
+    }
+  }
+
  private:
   typedef uv_tcp_t HandleType;