1 files changed, 82 insertions, 0 deletions
diff --git a/js/src/jit/CacheIRCloner.h b/js/src/jit/CacheIRCloner.h
new file mode 100644
index 0000000000..5e5e1d73af
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+++ b/js/src/jit/CacheIRCloner.h
@@ -0,0 +1,82 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ * 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/. */
+
+#ifndef jit_CacheIRCloner_h
+#define jit_CacheIRCloner_h
+
+#include "mozilla/Attributes.h"
+
+#include <stdint.h>
+
+#include "NamespaceImports.h"
+
+#include "jit/CacheIR.h"
+#include "jit/CacheIROpsGenerated.h"
+#include "jit/CacheIRReader.h"
+#include "jit/CacheIRWriter.h"
+#include "js/Id.h"
+#include "js/Value.h"
+
+class JSAtom;
+class JSObject;
+class JSString;
+
+namespace JS {
+class Symbol;
+}
+
+namespace js {
+
+class BaseScript;
+class GetterSetter;
+class Shape;
+
+namespace gc {
+class AllocSite;
+}
+
+namespace jit {
+
+class CacheIRStubInfo;
+class ICCacheIRStub;
+class JitCode;
+
+class MOZ_RAII CacheIRCloner {
+ public:
+  explicit CacheIRCloner(ICCacheIRStub* stubInfo);
+
+  void cloneOp(CacheOp op, CacheIRReader& reader, CacheIRWriter& writer);
+
+  CACHE_IR_CLONE_GENERATED
+
+ private:
+  const CacheIRStubInfo* stubInfo_;
+  const uint8_t* stubData_;
+
+  uintptr_t readStubWord(uint32_t offset);
+  int64_t readStubInt64(uint32_t offset);
+
+  Shape* getShapeField(uint32_t stubOffset);
+  GetterSetter* getGetterSetterField(uint32_t stubOffset);
+  JSObject* getObjectField(uint32_t stubOffset);
+  JSString* getStringField(uint32_t stubOffset);
+  JSAtom* getAtomField(uint32_t stubOffset);
+  JS::Symbol* getSymbolField(uint32_t stubOffset);
+  BaseScript* getBaseScriptField(uint32_t stubOffset);
+  JitCode* getJitCodeField(uint32_t stubOffset);
+  uint32_t getRawInt32Field(uint32_t stubOffset);
+  const void* getRawPointerField(uint32_t stubOffset);
+  jsid getIdField(uint32_t stubOffset);
+  const Value getValueField(uint32_t stubOffset);
+  uint64_t getRawInt64Field(uint32_t stubOffset);
+  double getDoubleField(uint32_t stubOffset);
+  gc::AllocSite* getAllocSiteField(uint32_t stubOffset);
+};
+
+}  // namespace jit
+}  // namespace js
+
+#endif /* jit_CacheIRCloner_h */