From 221dd99ffd1990f8bd0392543af35e9b08d0fed8 Mon Sep 17 00:00:00 2001
From: Lenz Weber-Tronic <lorenz.weber-tronic@apollographql.com>
Date: Fri, 8 Dec 2023 13:48:42 +0100
Subject: [PATCH] Allow usage of WeakMap in React Native Hermes (#10804)

Co-authored-by: phryneas <phryneas@users.noreply.github.com>
---
 .changeset/unlucky-rats-decide.md | 5 +++++
 .size-limits.json                 | 4 ++--
 src/utilities/common/canUse.ts    | 4 +++-
 3 files changed, 10 insertions(+), 3 deletions(-)
 create mode 100644 .changeset/unlucky-rats-decide.md

diff --git a/.changeset/unlucky-rats-decide.md b/.changeset/unlucky-rats-decide.md
new file mode 100644
index 00000000000..9be1d2d3961
--- /dev/null
+++ b/.changeset/unlucky-rats-decide.md
@@ -0,0 +1,5 @@
+---
+"@apollo/client": patch
+---
+
+use WeakMap in React Native with Hermes
diff --git a/.size-limits.json b/.size-limits.json
index e23614a183f..fb873241928 100644
--- a/.size-limits.json
+++ b/.size-limits.json
@@ -1,4 +1,4 @@
 {
-  "dist/apollo-client.min.cjs": 38576,
-  "import { ApolloClient, InMemoryCache, HttpLink } from \"dist/index.js\" (production)": 32352
+  "dist/apollo-client.min.cjs": 38589,
+  "import { ApolloClient, InMemoryCache, HttpLink } from \"dist/index.js\" (production)": 32365
 }
diff --git a/src/utilities/common/canUse.ts b/src/utilities/common/canUse.ts
index 72e56c70388..217cc01158b 100644
--- a/src/utilities/common/canUse.ts
+++ b/src/utilities/common/canUse.ts
@@ -2,7 +2,9 @@ import { maybe } from "../globals/index.js";
 
 export const canUseWeakMap =
   typeof WeakMap === "function" &&
-  maybe(() => navigator.product) !== "ReactNative";
+  !maybe(
+    () => navigator.product == "ReactNative" && !(global as any).HermesInternal
+  );
 
 export const canUseWeakSet = typeof WeakSet === "function";