diff --git a/src/wasm/asm-wasm-builder.h b/src/wasm/asm-wasm-builder.h
new file mode 100644
index 0000000..cb568db
--- /dev/null
+++ b/src/wasm/asm-wasm-builder.h
@@ -0,0 +1,33 @@
+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_WASM_ASM_WASM_BUILDER_H_
+#define V8_WASM_ASM_WASM_BUILDER_H_
+
+#include "src/allocation.h"
+#include "src/wasm/encoder.h"
+#include "src/zone.h"
+
+namespace v8 {
+namespace internal {
+
+class FunctionLiteral;
+
+namespace wasm {
+
+class AsmWasmBuilder {
+ public:
+  explicit AsmWasmBuilder(Isolate* isolate, Zone* zone, FunctionLiteral* root);
+  WasmModuleIndex* Run();
+
+ private:
+  Isolate* isolate_;
+  Zone* zone_;
+  FunctionLiteral* literal_;
+};
+}  // namespace wasm
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_WASM_ASM_WASM_BUILDER_H_