bindings: Add C++ versions of WebIDL types and generalize NativeValueTraits.

third_party/WebKit/Source/bindings/tests/results/core/V8TestInterface.cpp

Index: third_party/WebKit/Source/bindings/tests/results/core/V8TestInterface.cpp
diff --git a/third_party/WebKit/Source/bindings/tests/results/core/V8TestInterface.cpp b/third_party/WebKit/Source/bindings/tests/results/core/V8TestInterface.cpp
index 61912cd52eb52cb677462908a4ee8198ed6c4560..729ed5c4140fe18bb1007842957bbc2de6eabf3d 100644
--- a/third_party/WebKit/Source/bindings/tests/results/core/V8TestInterface.cpp
+++ b/third_party/WebKit/Source/bindings/tests/results/core/V8TestInterface.cpp
@@ -12,6 +12,8 @@
 #include "V8TestInterface.h"
 
 #include "bindings/core/v8/ExceptionState.h"
+#include "bindings/core/v8/IDLTypes.h"
+#include "bindings/core/v8/NativeValueTraitsImpl.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/ScriptValue.h"
@@ -118,7 +120,7 @@ static void doubleAttributeAttributeSetter(v8::Local<v8::Value> v8Value, const v
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface", "doubleAttribute");
 
   // Prepare the value to be set.
-  double cppValue = toRestrictedDouble(info.GetIsolate(), v8Value, exceptionState);
+  double cppValue = NativeValueTraits<IDLDouble>::nativeValue(info.GetIsolate(), v8Value, exceptionState);
   if (exceptionState.hadException())
     return;
 
@@ -140,7 +142,7 @@ static void floatAttributeAttributeSetter(v8::Local<v8::Value> v8Value, const v8
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface", "floatAttribute");
 
   // Prepare the value to be set.
-  float cppValue = toRestrictedFloat(info.GetIsolate(), v8Value, exceptionState);
+  float cppValue = NativeValueTraits<IDLFloat>::nativeValue(info.GetIsolate(), v8Value, exceptionState);
   if (exceptionState.hadException())
     return;
 
@@ -162,7 +164,7 @@ static void unrestrictedDoubleAttributeAttributeSetter(v8::Local<v8::Value> v8Va
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface", "unrestrictedDoubleAttribute");
 
   // Prepare the value to be set.
-  double cppValue = toDouble(info.GetIsolate(), v8Value, exceptionState);
+  double cppValue = NativeValueTraits<IDLUnrestrictedDouble>::nativeValue(info.GetIsolate(), v8Value, exceptionState);
   if (exceptionState.hadException())
     return;
 
@@ -184,7 +186,7 @@ static void unrestrictedFloatAttributeAttributeSetter(v8::Local<v8::Value> v8Val
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface", "unrestrictedFloatAttribute");
 
   // Prepare the value to be set.
-  float cppValue = toFloat(info.GetIsolate(), v8Value, exceptionState);
+  float cppValue = NativeValueTraits<IDLUnrestrictedFloat>::nativeValue(info.GetIsolate(), v8Value, exceptionState);
   if (exceptionState.hadException())
     return;
 
@@ -268,7 +270,7 @@ static void conditionalLongAttributeAttributeSetter(v8::Local<v8::Value> v8Value
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface", "conditionalLongAttribute");
 
   // Prepare the value to be set.
-  int32_t cppValue = toInt32(info.GetIsolate(), v8Value, NormalConversion, exceptionState);
+  int32_t cppValue = NativeValueTraits<IDLLong>::nativeValue(info.GetIsolate(), v8Value, exceptionState, NormalConversion);
   if (exceptionState.hadException())
     return;
 
@@ -370,7 +372,7 @@ static void alwaysExposedAttributeAttributeSetter(v8::Local<v8::Value> v8Value,
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface", "alwaysExposedAttribute");
 
   // Prepare the value to be set.
-  int32_t cppValue = toInt32(info.GetIsolate(), v8Value, NormalConversion, exceptionState);
+  int32_t cppValue = NativeValueTraits<IDLLong>::nativeValue(info.GetIsolate(), v8Value, exceptionState, NormalConversion);
   if (exceptionState.hadException())
     return;
 
@@ -392,7 +394,7 @@ static void workerExposedAttributeAttributeSetter(v8::Local<v8::Value> v8Value,
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface", "workerExposedAttribute");
 
   // Prepare the value to be set.
-  int32_t cppValue = toInt32(info.GetIsolate(), v8Value, NormalConversion, exceptionState);
+  int32_t cppValue = NativeValueTraits<IDLLong>::nativeValue(info.GetIsolate(), v8Value, exceptionState, NormalConversion);
   if (exceptionState.hadException())
     return;
 
@@ -414,7 +416,7 @@ static void windowExposedAttributeAttributeSetter(v8::Local<v8::Value> v8Value,
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface", "windowExposedAttribute");
 
   // Prepare the value to be set.
-  int32_t cppValue = toInt32(info.GetIsolate(), v8Value, NormalConversion, exceptionState);
+  int32_t cppValue = NativeValueTraits<IDLLong>::nativeValue(info.GetIsolate(), v8Value, exceptionState, NormalConversion);
   if (exceptionState.hadException())
     return;
 
@@ -803,7 +805,7 @@ static void partialLongAttributeAttributeSetter(v8::Local<v8::Value> v8Value, co
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface", "partialLongAttribute");
 
   // Prepare the value to be set.
-  int32_t cppValue = toInt32(info.GetIsolate(), v8Value, NormalConversion, exceptionState);
+  int32_t cppValue = NativeValueTraits<IDLLong>::nativeValue(info.GetIsolate(), v8Value, exceptionState, NormalConversion);
   if (exceptionState.hadException())
     return;
 
@@ -818,7 +820,7 @@ static void partialStaticLongAttributeAttributeSetter(v8::Local<v8::Value> v8Val
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface", "partialStaticLongAttribute");
 
   // Prepare the value to be set.
-  int32_t cppValue = toInt32(info.GetIsolate(), v8Value, NormalConversion, exceptionState);
+  int32_t cppValue = NativeValueTraits<IDLLong>::nativeValue(info.GetIsolate(), v8Value, exceptionState, NormalConversion);
   if (exceptionState.hadException())
     return;
 
@@ -842,7 +844,7 @@ static void partialCallWithExecutionContextLongAttributeAttributeSetter(v8::Loca
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface", "partialCallWithExecutionContextLongAttribute");
 
   // Prepare the value to be set.
-  int32_t cppValue = toInt32(info.GetIsolate(), v8Value, NormalConversion, exceptionState);
+  int32_t cppValue = NativeValueTraits<IDLLong>::nativeValue(info.GetIsolate(), v8Value, exceptionState, NormalConversion);
   if (exceptionState.hadException())
     return;
 
@@ -900,7 +902,7 @@ static void partialSecureContextLongAttributeAttributeSetter(v8::Local<v8::Value
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface", "partialSecureContextLongAttribute");
 
   // Prepare the value to be set.
-  int32_t cppValue = toInt32(info.GetIsolate(), v8Value, NormalConversion, exceptionState);
+  int32_t cppValue = NativeValueTraits<IDLLong>::nativeValue(info.GetIsolate(), v8Value, exceptionState, NormalConversion);
   if (exceptionState.hadException())
     return;
 
@@ -922,7 +924,7 @@ static void partial2LongAttributeAttributeSetter(v8::Local<v8::Value> v8Value, c
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface", "partial2LongAttribute");
 
   // Prepare the value to be set.
-  int32_t cppValue = toInt32(info.GetIsolate(), v8Value, NormalConversion, exceptionState);
+  int32_t cppValue = NativeValueTraits<IDLLong>::nativeValue(info.GetIsolate(), v8Value, exceptionState, NormalConversion);
   if (exceptionState.hadException())
     return;
 
@@ -937,7 +939,7 @@ static void partial2StaticLongAttributeAttributeSetter(v8::Local<v8::Value> v8Va
   ExceptionState exceptionState(info.GetIsolate(), ExceptionState::SetterContext, "TestInterface", "partial2StaticLongAttribute");
 
   // Prepare the value to be set.
-  int32_t cppValue = toInt32(info.GetIsolate(), v8Value, NormalConversion, exceptionState);
+  int32_t cppValue = NativeValueTraits<IDLLong>::nativeValue(info.GetIsolate(), v8Value, exceptionState, NormalConversion);
   if (exceptionState.hadException())
     return;
 
@@ -1157,11 +1159,11 @@ static void voidMethodDoubleArgFloatArgMethod(const v8::FunctionCallbackInfo<v8:
 
   double doubleArg;
   float floatArg;
-  doubleArg = toRestrictedDouble(info.GetIsolate(), info[0], exceptionState);
+  doubleArg = NativeValueTraits<IDLDouble>::nativeValue(info.GetIsolate(), info[0], exceptionState);
   if (exceptionState.hadException())
     return;
 
-  floatArg = toRestrictedFloat(info.GetIsolate(), info[1], exceptionState);
+  floatArg = NativeValueTraits<IDLFloat>::nativeValue(info.GetIsolate(), info[1], exceptionState);
   if (exceptionState.hadException())
     return;
 
@@ -1180,11 +1182,11 @@ static void voidMethodUnrestrictedDoubleArgUnrestrictedFloatArgMethod(const v8::
 
   double unrestrictedDoubleArg;
   float unrestrictedFloatArg;
-  unrestrictedDoubleArg = toDouble(info.GetIsolate(), info[0], exceptionState);
+  unrestrictedDoubleArg = NativeValueTraits<IDLUnrestrictedDouble>::nativeValue(info.GetIsolate(), info[0], exceptionState);
   if (exceptionState.hadException())
     return;
 
-  unrestrictedFloatArg = toFloat(info.GetIsolate(), info[1], exceptionState);
+  unrestrictedFloatArg = NativeValueTraits<IDLUnrestrictedFloat>::nativeValue(info.GetIsolate(), info[1], exceptionState);
   if (exceptionState.hadException())
     return;
 
@@ -1276,7 +1278,7 @@ static void overloadMethodWithExposedAndRuntimeEnabledFlag1Method(const v8::Func
   TestInterfaceImplementation* impl = V8TestInterface::toImpl(info.Holder());
 
   int32_t longArg;
-  longArg = toInt32(info.GetIsolate(), info[0], NormalConversion, exceptionState);
+  longArg = NativeValueTraits<IDLLong>::nativeValue(info.GetIsolate(), info[0], exceptionState, NormalConversion);
   if (exceptionState.hadException())
     return;
 
@@ -1372,7 +1374,7 @@ static void voidMethodPartialOverload2Method(const v8::FunctionCallbackInfo<v8::
   TestInterfaceImplementation* impl = V8TestInterface::toImpl(info.Holder());
 
   double doubleArg;
-  doubleArg = toRestrictedDouble(info.GetIsolate(), info[0], exceptionState);
+  doubleArg = NativeValueTraits<IDLDouble>::nativeValue(info.GetIsolate(), info[0], exceptionState);
   if (exceptionState.hadException())
     return;
 
@@ -1553,7 +1555,7 @@ static void partialVoidMethodLongArgMethod(const v8::FunctionCallbackInfo<v8::Va
   }
 
   int32_t longArg;
-  longArg = toInt32(info.GetIsolate(), info[0], NormalConversion, exceptionState);
+  longArg = NativeValueTraits<IDLLong>::nativeValue(info.GetIsolate(), info[0], exceptionState, NormalConversion);
   if (exceptionState.hadException())
     return;
 
@@ -2785,6 +2787,10 @@ TestInterfaceImplementation* V8TestInterface::toImplWithTypeCheck(v8::Isolate* i
   return hasInstance(value, isolate) ? toImpl(v8::Local<v8::Object>::Cast(value)) : nullptr;
 }
 
+TestInterfaceImplementation* NativeValueTraits<TestInterfaceImplementation>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState) {
+  return V8TestInterface::toImplWithTypeCheck(isolate, value);
+}
+
 void V8TestInterface::preparePrototypeAndInterfaceObject(v8::Local<v8::Context> context, const DOMWrapperWorld& world, v8::Local<v8::Object> prototypeObject, v8::Local<v8::Function> interfaceObject, v8::Local<v8::FunctionTemplate> interfaceTemplate) {
   v8::Isolate* isolate = context->GetIsolate();
   v8::Local<v8::Signature> signature = v8::Signature::New(isolate, interfaceTemplate);