Add support for nullable operation arguments in IDL files

Source/bindings/tests/results/V8TestObject.cpp

 /*
     This file is part of the Blink open source project.
     This file has been auto-generated by CodeGeneratorV8.pm. DO NOT MODIFY!
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
 
     This library is distributed in the hope that it will be useful,
@@ skipping 3904 matching lines @@
     return;
 }
 
 static void overloadedMethod7Method(const v8::FunctionCallbackInfo<v8::Value>& args)
 {
     if (UNLIKELY(args.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("overloadedMethod", "TestObject", ExceptionMessages::notEnoughArguments(1, args.Length())), args.GetIsolate());
         return;
     }
     TestObj* imp = V8TestObject::toNative(args.Holder());
+    bool arrayArgIsNull = args[0]->IsNull();
     V8TRYCATCH_VOID(Vector<String>, arrayArg, toNativeArray<String>(args[0], args.GetIsolate()));
-    imp->overloadedMethod(arrayArg);
+    imp->overloadedMethod(arrayArgIsNull ? 0 : &arrayArg);
 
     return;
 }
 
 static void overloadedMethod8Method(const v8::FunctionCallbackInfo<v8::Value>& args)
 {
     if (UNLIKELY(args.Length() < 1)) {
         throwTypeError(ExceptionMessages::failedToExecute("overloadedMethod", "TestObject", ExceptionMessages::notEnoughArguments(1, args.Length())), args.GetIsolate());
         return;
     }
@@ skipping 573 matching lines @@
     return;
 }
 
 static void variadicNodeMethodMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& args)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjV8Internal::variadicNodeMethodMethod(args);
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
 }
 
+static void methodWithNullableArgumentsMethod(const v8::FunctionCallbackInfo<v8::Value>& args)
+{
+    if (UNLIKELY(args.Length() < 3)) {
+        throwTypeError(ExceptionMessages::failedToExecute("methodWithNullableArguments", "TestObject", ExceptionMessages::notEnoughArguments(3, args.Length())), args.GetIsolate());
+        return;
+    }
+    TestObj* imp = V8TestObject::toNative(args.Holder());
+    bool strIsNull = args[0]->IsNull();
+    V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, strStringResource, args[0]);
+    String str = strStringResource;
+    bool lIsNull = args[1]->IsNull();
+    V8TRYCATCH_VOID(int, l, toInt32(args[1]));
+    V8TRYCATCH_VOID(TestObj*, obj, V8TestObject::HasInstance(args[2], args.GetIsolate(), worldType(args.GetIsolate())) ? V8TestObject::toNative(v8::Handle<v8::Object>::Cast(args[2])) : 0);
+    if (UNLIKELY(args.Length() <= 3)) {
+        imp->methodWithNullableArguments(strIsNull ? 0 : &str, lIsNull ? 0 : &l, obj);
+
+        return;
+    }
+    bool dIsNull = args[3]->IsNull();
+    V8TRYCATCH_VOID(double, d, static_cast<double>(args[3]->NumberValue()));
+    imp->methodWithNullableArguments(strIsNull ? 0 : &str, lIsNull ? 0 : &l, obj, dIsNull ? 0 : &d);
+
+    return;
+}
+
+static void methodWithNullableArgumentsMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& args)
+{
+    TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
+    TestObjV8Internal::methodWithNullableArgumentsMethod(args);
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "Execution");
+}
+
 static void perWorldMethodMethod(const v8::FunctionCallbackInfo<v8::Value>& args)
 {
     TestObj* imp = V8TestObject::toNative(args.Holder());
     imp->perWorldMethod();
 
     return;
 }
 
 static void perWorldMethodMethodForMainWorld(const v8::FunctionCallbackInfo<v8::Value>& args)
 {
@@ skipping 642 matching lines @@
     {"classMethodWithClamp", TestObjV8Internal::classMethodWithClampMethodCallback, 0, 2},
     {"methodWithUnsignedLongSequence", TestObjV8Internal::methodWithUnsignedLongSequenceMethodCallback, 0, 1},
     {"stringArrayFunction", TestObjV8Internal::stringArrayFunctionMethodCallback, 0, 1},
     {"getSVGDocument", TestObjV8Internal::getSVGDocumentMethodCallback, 0, 0},
     {"mutablePointFunction", TestObjV8Internal::mutablePointFunctionMethodCallback, 0, 0},
     {"immutablePointFunction", TestObjV8Internal::immutablePointFunctionMethodCallback, 0, 0},
     {"orange", TestObjV8Internal::orangeMethodCallback, 0, 0},
     {"strictFunction", TestObjV8Internal::strictFunctionMethodCallback, 0, 3},
     {"variadicStringMethod", TestObjV8Internal::variadicStringMethodMethodCallback, 0, 2},
     {"variadicDoubleMethod", TestObjV8Internal::variadicDoubleMethodMethodCallback, 0, 2},
+    {"methodWithNullableArguments", TestObjV8Internal::methodWithNullableArgumentsMethodCallback, 0, 3},
     {"perWorldMethod", TestObjV8Internal::perWorldMethodMethodCallback, TestObjV8Internal::perWorldMethodMethodCallbackForMainWorld, 0},
     {"overloadedPerWorldMethod", TestObjV8Internal::overloadedPerWorldMethodMethodCallback, TestObjV8Internal::overloadedPerWorldMethodMethodCallbackForMainWorld, 1},
     {"activityLoggedMethod1", TestObjV8Internal::activityLoggedMethod1MethodCallback, 0, 1},
     {"activityLoggedMethod2", TestObjV8Internal::activityLoggedMethod2MethodCallback, TestObjV8Internal::activityLoggedMethod2MethodCallbackForMainWorld, 1},
     {"activityLoggedInIsolatedWorldMethod", TestObjV8Internal::activityLoggedInIsolatedWorldMethodMethodCallback, TestObjV8Internal::activityLoggedInIsolatedWorldMethodMethodCallbackForMainWorld, 1},
     {"overloadedActivityLoggedMethod", TestObjV8Internal::overloadedActivityLoggedMethodMethodCallback, TestObjV8Internal::overloadedActivityLoggedMethodMethodCallbackForMainWorld, 1},
     {"deprecatedMethod", TestObjV8Internal::deprecatedMethodMethodCallback, 0, 0},
 };
 
 void V8TestObject::constructorCallback(const v8::FunctionCallbackInfo<v8::Value>& args)
@@ skipping 193 matching lines @@
     V8DOMWrapper::associateObjectWithWrapper<V8TestObject>(impl, &info, wrapper, isolate, WrapperConfiguration::Independent);
     return wrapper;
 }
 
 void V8TestObject::derefObject(void* object)
 {
     fromInternalPointer(object)->deref();
 }
 
 } // namespace WebCore