structured clone (#3637)

* copy `SerializedScriptValue`

* format

* make `SerializedScriptValue` compile

* add `transfer` option

* tests

* serialize/deserialize blobs

* tests for blobs

* serialize/deserialize file blobs

* more tests

* small cleanup

* format

* small changes + serialize offset

* slice helper

* map and set test

1 files changed, 15 insertions, 0 deletions

diff --git a/src/bun.js/bindings/ScriptExecutionContext.h b/src/bun.js/bindings/ScriptExecutionContext.h
index aed7977a5..fcf65f477 100644
--- a/src/bun.js/bindings/ScriptExecutionContext.h
+++ b/src/bun.js/bindings/ScriptExecutionContext.h
@@ -115,6 +115,18 @@ public:
     // {
     // }
 
+#if ENABLE(WEB_CRYPTO)
+    // These two methods are used when CryptoKeys are serialized into IndexedDB. As a side effect, it is also
+    // used for things that utilize the same structure clone algorithm, for example, message passing between
+    // worker and document.
+
+    // For now these will return false. In the future, we will want to implement these similar to how WorkerGlobalScope.cpp does.
+    // virtual bool wrapCryptoKey(const Vector<uint8_t>& key, Vector<uint8_t>& wrappedKey) = 0;
+    // virtual bool unwrapCryptoKey(const Vector<uint8_t>& wrappedKey, Vector<uint8_t>& key) = 0;
+    bool wrapCryptoKey(const Vector<uint8_t>& key, Vector<uint8_t>& wrappedKey) { return false; }
+    bool unwrapCryptoKey(const Vector<uint8_t>& wrappedKey, Vector<uint8_t>& key) { return false; }
+#endif
+
     static bool postTaskTo(ScriptExecutionContextIdentifier identifier, Function<void(ScriptExecutionContext&)>&& task);
 
     void regenerateIdentifier();
@@ -194,4 +206,7 @@ public:
         }
     }
 };
+
+ScriptExecutionContext* executionContext(JSC::JSGlobalObject*);
+
 }
\ No newline at end of file