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-rw-r--r--xpcom/io/nsIObjectInputStream.idl53
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diff --git a/xpcom/io/nsIObjectInputStream.idl b/xpcom/io/nsIObjectInputStream.idl
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsIBinaryInputStream.idl"
+
+/**
+ * @see nsIObjectOutputStream
+ * @see nsIBinaryInputStream
+ */
+
+[scriptable, uuid(6c248606-4eae-46fa-9df0-ba58502368eb)]
+interface nsIObjectInputStream : nsIBinaryInputStream
+{
+ /**
+ * Read an object from this stream to satisfy a strong or weak reference
+ * to one of its interfaces. If the interface was not along the primary
+ * inheritance chain ending in the "root" or XPCOM-identity nsISupports,
+ * readObject will QueryInterface from the deserialized object root to the
+ * correct interface, which was specified when the object was serialized.
+ *
+ * @see nsIObjectOutputStream
+ */
+ nsISupports readObject(in boolean aIsStrongRef);
+
+ [notxpcom] nsresult readID(out nsID aID);
+
+ /**
+ * Optimized deserialization support -- see nsIStreamBufferAccess.idl.
+ */
+ [notxpcom] charPtr getBuffer(in uint32_t aLength, in uint32_t aAlignMask);
+ [notxpcom] void putBuffer(in charPtr aBuffer, in uint32_t aLength);
+};
+
+%{C++
+
+inline nsresult
+NS_ReadOptionalObject(nsIObjectInputStream* aStream, bool aIsStrongRef,
+ nsISupports* *aResult)
+{
+ bool nonnull;
+ nsresult rv = aStream->ReadBoolean(&nonnull);
+ if (NS_SUCCEEDED(rv)) {
+ if (nonnull)
+ rv = aStream->ReadObject(aIsStrongRef, aResult);
+ else
+ *aResult = nullptr;
+ }
+ return rv;
+}
+
+%}