[wasm] Call the wasm interpreter from the wasm-code-fuzzer.

src/wasm/wasm-module.h

 // 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_MODULE_H_
 #define V8_WASM_MODULE_H_
 
 #include <memory>
 
 #include "src/api.h"
 #include "src/handles.h"
 #include "src/parsing/preparse-data.h"
 
+#include "src/wasm/wasm-interpreter.h"

[titzer, 2016/09/09 08:58:59]

If you move the one function, then I think you can remove this include.

[ahaas, 2016/09/09 11:57:36]

Removed.

 #include "src/wasm/wasm-opcodes.h"
 #include "src/wasm/wasm-result.h"
 
 namespace v8 {
 namespace internal {
 
 namespace compiler {
 class CallDescriptor;
 class WasmCompilationUnit;
 }
@@ skipping 386 matching lines @@
 
 // Assumed to be called with a code object associated to a wasm module instance.
 // Intended to be called from runtime functions.
 // Returns undefined if the runtime support was not setup, nullptr if the
 // instance
 // was collected, or the instance object owning the Code object
 Object* GetOwningWasmInstance(Object* undefined, Code* code);
 
 namespace testing {
 
+// Decodes the given encoded module.
+const WasmModule* DecodeWasmModuleForTesting(Isolate* isolate, Zone* zone,
+                                             ErrorThrower& thrower,
+                                             const byte* module_start,
+                                             const byte* module_end,
+                                             ModuleOrigin origin);
+
+// Instantiates a module without any imports and exports.
+const Handle<JSObject> InstantiateModuleForTesting(Isolate* isolate,
+                                                   ErrorThrower& thrower,
+                                                   const WasmModule* module);
+
+int32_t CallWasmFunctionForTesting(Isolate* isolate, Handle<JSObject> instance,
+                                   ErrorThrower& thrower, const char* name,
+                                   int argc, Handle<Object> argv[],
+                                   bool asm_js = false);
+
 // Decode, verify, and run the function labeled "main" in the
 // given encoded module. The module should have no imports.
 int32_t CompileAndRunWasmModule(Isolate* isolate, const byte* module_start,
                                 const byte* module_end, bool asm_js = false);
 
-int32_t CallFunction(Isolate* isolate, Handle<JSObject> instance,
-                     ErrorThrower* thrower, const char* name, int argc,
-                     Handle<Object> argv[], bool asm_js = false);
+// Interprets the given module, starting at the function specified by
+// {function_index}. The return type of the function has to be int32. The module
+// should not have any imports or exports
+int32_t InterpretWasmModule(Isolate* isolate, ErrorThrower& thrower,

[titzer, 2016/09/09 08:58:59]

Move this method to wasm-interpreter.h?

[ahaas, 2016/09/09 11:57:36]

I moved the code to the new file test/cctest/wasm/wasm-module-runner.h

+                            const WasmModule* module, int function_index,
+                            WasmVal* args);
 }  // namespace testing
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_WASM_MODULE_H_