Avoid extra arity and type check on distinguishing argument

Source/bindings/tests/results/V8TestObject.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file has been auto-generated by code_generator_v8.py. DO NOT MODIFY!
 
 #include "config.h"
 #include "V8TestObject.h"
 
 #include "HTMLNames.h"
@@ skipping 6905 matching lines @@
     exceptionState.throwIfNeeded();
 }
 
 static void overloadedMethodLMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
     TestObjectV8Internal::overloadedMethodLMethod(info);
     TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
 }
 
+static void overloadedMethodM1Method(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    TestObject* impl = V8TestObject::toNative(info.Holder());
+    if (info.Length() > 0 && !V8TestInterface::hasInstance(info[0], info.GetIsolate())) {
+        throwTypeError(ExceptionMessages::failedToExecute("overloadedMethodM", "TestObject", "parameter 1 is not of type 'TestInterface'."), info.GetIsolate());
+        return;
+    }
+    TONATIVE_VOID(TestInterfaceImplementation*, testInterfaceArg1, V8TestInterface::toNativeWithTypeCheck(info.GetIsolate(), info[0]));
+    TONATIVE_VOID(TestInterfaceImplementation*, testInterfaceArg2, V8TestInterface::toNativeWithTypeCheck(info.GetIsolate(), info[1]));
+    impl->overloadedMethodM(testInterfaceArg1, testInterfaceArg2);
+}
+
+static void overloadedMethodM2Method(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    TestObject* impl = V8TestObject::toNative(info.Holder());
+    if (info.Length() > 0 && !V8TestInterface::hasInstance(info[0], info.GetIsolate())) {
+        throwTypeError(ExceptionMessages::failedToExecute("overloadedMethodM", "TestObject", "parameter 1 is not of type 'TestInterface'."), info.GetIsolate());
+        return;
+    }
+    TONATIVE_VOID(TestInterfaceImplementation*, testInterfaceArg, V8TestInterface::toNativeWithTypeCheck(info.GetIsolate(), info[0]));
+    TONATIVE_VOID(TestInterfaceEmpty*, testInterfaceEmptyArg, V8TestInterfaceEmpty::toNativeWithTypeCheck(info.GetIsolate(), info[1]));
+    impl->overloadedMethodM(testInterfaceArg, testInterfaceEmptyArg);
+}
+
+static void overloadedMethodMMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    switch (info.Length()) {
+    case 2:
+        if (V8TestInterface::hasInstance(info[1], info.GetIsolate())) {
+            overloadedMethodM1Method(info);
+            return;
+        }
+        if (V8TestInterfaceEmpty::hasInstance(info[1], info.GetIsolate())) {
+            overloadedMethodM2Method(info);
+            return;
+        }
+        break;
+    }
+    ExceptionState exceptionState(ExceptionState::ExecutionContext, "overloadedMethodM", "TestObject", info.Holder(), info.GetIsolate());
+    if (UNLIKELY(info.Length() < 2)) {
+        throwArityTypeError(exceptionState, 2, info.Length());
+        return;
+    }
+    exceptionState.throwTypeError("No function was found that matched the signature provided.");
+    exceptionState.throwIfNeeded();
+}
+
+static void overloadedMethodMMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
+    TestObjectV8Internal::overloadedMethodMMethod(info);
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
+}
+
+static void overloadedMethodN1Method(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    TestObject* impl = V8TestObject::toNative(info.Holder());
+    TONATIVE_VOID(double, a, static_cast<double>(info[0]->NumberValue()));
+    TONATIVE_VOID(TestInterfaceImplementation*, b, V8TestInterface::toNativeWithTypeCheck(info.GetIsolate(), info[1]));
+    impl->overloadedMethodN(a, b);
+}
+
+static void overloadedMethodN2Method(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    TestObject* impl = V8TestObject::toNative(info.Holder());
+    TONATIVE_VOID(double, a, static_cast<double>(info[0]->NumberValue()));
+    if (info.Length() > 1 && !V8TestInterfaceEmpty::hasInstance(info[1], info.GetIsolate())) {
+        throwTypeError(ExceptionMessages::failedToExecute("overloadedMethodN", "TestObject", "parameter 2 is not of type 'TestInterfaceEmpty'."), info.GetIsolate());
+        return;
+    }
+    TONATIVE_VOID(TestInterfaceEmpty*, b, V8TestInterfaceEmpty::toNativeWithTypeCheck(info.GetIsolate(), info[1]));
+    if (UNLIKELY(info.Length() <= 2)) {
+        impl->overloadedMethodN(a, b);
+        return;
+    }
+    TONATIVE_VOID(TestInterfaceImplementation*, c, V8TestInterface::toNativeWithTypeCheck(info.GetIsolate(), info[2]));
+    impl->overloadedMethodN(a, b, c);
+}
+
+static void overloadedMethodN3Method(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    TestObject* impl = V8TestObject::toNative(info.Holder());
+    TONATIVE_VOID(double, a, static_cast<double>(info[0]->NumberValue()));
+    if (info.Length() > 1 && !V8TestInterfaceEmpty::hasInstance(info[1], info.GetIsolate())) {
+        throwTypeError(ExceptionMessages::failedToExecute("overloadedMethodN", "TestObject", "parameter 2 is not of type 'TestInterfaceEmpty'."), info.GetIsolate());
+        return;
+    }
+    TONATIVE_VOID(TestInterfaceEmpty*, b, V8TestInterfaceEmpty::toNativeWithTypeCheck(info.GetIsolate(), info[1]));
+    TONATIVE_VOID(TestInterfaceEmpty*, c, V8TestInterfaceEmpty::toNativeWithTypeCheck(info.GetIsolate(), info[2]));
+    impl->overloadedMethodN(a, b, c);
+}
+
+static void overloadedMethodNMethod(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    switch (info.Length()) {
+    case 2:
+        if (V8TestInterface::hasInstance(info[1], info.GetIsolate())) {
+            overloadedMethodN1Method(info);
+            return;
+        }
+        if (V8TestInterfaceEmpty::hasInstance(info[1], info.GetIsolate())) {
+            overloadedMethodN2Method(info);
+            return;
+        }
+        break;
+    case 3:
+        if (info[2]->IsUndefined()) {
+            overloadedMethodN2Method(info);
+            return;
+        }
+        if (V8TestInterface::hasInstance(info[2], info.GetIsolate())) {
+            overloadedMethodN2Method(info);
+            return;
+        }
+        if (V8TestInterfaceEmpty::hasInstance(info[2], info.GetIsolate())) {
+            overloadedMethodN3Method(info);
+            return;
+        }
+        break;
+    }
+    ExceptionState exceptionState(ExceptionState::ExecutionContext, "overloadedMethodN", "TestObject", info.Holder(), info.GetIsolate());
+    if (UNLIKELY(info.Length() < 2)) {
+        throwArityTypeError(exceptionState, 2, info.Length());
+        return;
+    }
+    exceptionState.throwTypeError("No function was found that matched the signature provided.");
+    exceptionState.throwIfNeeded();
+}
+
+static void overloadedMethodNMethodCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    TRACE_EVENT_SET_SAMPLING_STATE("Blink", "DOMMethod");
+    TestObjectV8Internal::overloadedMethodNMethod(info);
+    TRACE_EVENT_SET_SAMPLING_STATE("V8", "V8Execution");
+}
+
 static void overloadedPerWorldBindingsMethod1Method(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObject* impl = V8TestObject::toNative(info.Holder());
     impl->overloadedPerWorldBindingsMethod();
 }
 
 static void overloadedPerWorldBindingsMethod1MethodForMainWorld(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     TestObject* impl = V8TestObject::toNative(info.Holder());
     impl->overloadedPerWorldBindingsMethod();
@@ skipping 1689 matching lines @@
     {"overloadedMethodC", TestObjectV8Internal::overloadedMethodCMethodCallback, 0, 1},
     {"overloadedMethodD", TestObjectV8Internal::overloadedMethodDMethodCallback, 0, 1},
     {"overloadedMethodE", TestObjectV8Internal::overloadedMethodEMethodCallback, 0, 1},
     {"overloadedMethodF", TestObjectV8Internal::overloadedMethodFMethodCallback, 0, 1},
     {"overloadedMethodG", TestObjectV8Internal::overloadedMethodGMethodCallback, 0, 0},
     {"overloadedMethodH", TestObjectV8Internal::overloadedMethodHMethodCallback, 0, 0},
     {"overloadedMethodI", TestObjectV8Internal::overloadedMethodIMethodCallback, 0, 1},
     {"overloadedMethodJ", TestObjectV8Internal::overloadedMethodJMethodCallback, 0, 1},
     {"overloadedMethodK", TestObjectV8Internal::overloadedMethodKMethodCallback, 0, 1},
     {"overloadedMethodL", TestObjectV8Internal::overloadedMethodLMethodCallback, 0, 1},
+    {"overloadedMethodM", TestObjectV8Internal::overloadedMethodMMethodCallback, 0, 2},
+    {"overloadedMethodN", TestObjectV8Internal::overloadedMethodNMethodCallback, 0, 2},
     {"overloadedPerWorldBindingsMethod", TestObjectV8Internal::overloadedPerWorldBindingsMethodMethodCallback, TestObjectV8Internal::overloadedPerWorldBindingsMethodMethodCallbackForMainWorld, 0},
     {"voidMethodClampUnsignedShortArg", TestObjectV8Internal::voidMethodClampUnsignedShortArgMethodCallback, 0, 1},
     {"voidMethodClampUnsignedLongArg", TestObjectV8Internal::voidMethodClampUnsignedLongArgMethodCallback, 0, 1},
     {"voidMethodDefaultUndefinedTestInterfaceEmptyArg", TestObjectV8Internal::voidMethodDefaultUndefinedTestInterfaceEmptyArgMethodCallback, 0, 0},
     {"voidMethodDefaultUndefinedLongArg", TestObjectV8Internal::voidMethodDefaultUndefinedLongArgMethodCallback, 0, 0},
     {"voidMethodDefaultUndefinedStringArg", TestObjectV8Internal::voidMethodDefaultUndefinedStringArgMethodCallback, 0, 0},
     {"voidMethodDefaultNullStringStringArg", TestObjectV8Internal::voidMethodDefaultNullStringStringArgMethodCallback, 0, 0},
     {"voidMethodEnforceRangeLongArg", TestObjectV8Internal::voidMethodEnforceRangeLongArgMethodCallback, 0, 1},
     {"voidMethodTreatNullAsNullStringStringArg", TestObjectV8Internal::voidMethodTreatNullAsNullStringStringArgMethodCallback, 0, 1},
     {"voidMethodTreatNullAsNullStringTreatUndefinedAsNullStringStringArg", TestObjectV8Internal::voidMethodTreatNullAsNullStringTreatUndefinedAsNullStringStringArgMethodCallback, 0, 1},
@@ skipping 221 matching lines @@
     fromInternalPointer(object)->deref();
 }
 
 template<>
 v8::Handle<v8::Value> toV8NoInline(TestObject* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 {
     return toV8(impl, creationContext, isolate);
 }
 
 } // namespace WebCore