[WIP] bindings: Introduce PropertyBag

Source/bindings/core/v8/V8Binding.h

 /*
 * Copyright (C) 2009 Google Inc. All rights reserved.
 * Copyright (C) 2012 Ericsson AB. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
@@ skipping 16 matching lines @@
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
 #ifndef V8Binding_h
 #define V8Binding_h
 
 #include "bindings/core/v8/DOMWrapperWorld.h"
 #include "bindings/core/v8/ExceptionMessages.h"
+#include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptValue.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "bindings/core/v8/V8BindingMacros.h"
 #include "bindings/core/v8/V8PerIsolateData.h"
 #include "bindings/core/v8/V8StringResource.h"
 #include "bindings/core/v8/V8ThrowException.h"
 #include "bindings/core/v8/V8ValueCache.h"
 #include "platform/heap/Heap.h"
 #include "wtf/GetPtr.h"
 #include "wtf/MathExtras.h"
@@ skipping 481 matching lines @@
 
 // Convert a value to a single precision float, which might fail.
 float toFloat(v8::Handle<v8::Value>, ExceptionState&);
 
 // Convert a value to a single precision float assuming the conversion cannot fail.
 inline float toFloat(v8::Local<v8::Value> value)
 {
     return static_cast<float>(value->NumberValue());
 }
 
+bool toBoolean(v8::Handle<v8::Value>, ExceptionState&);
+double toDouble(v8::Handle<v8::Value>, ExceptionState&);
+
 // Converts a value to a String, throwing if any code unit is outside 0-255.
 String toByteString(v8::Handle<v8::Value>, ExceptionState&);
 
 // Converts a value to a String, replacing unmatched UTF-16 surrogates with replacement characters.
 String toScalarValueString(v8::Handle<v8::Value>, ExceptionState&);
 
 inline v8::Handle<v8::Boolean> v8Boolean(bool value, v8::Isolate* isolate)
 {
     return value ? v8::True(isolate) : v8::False(isolate);
 }
@@ skipping 13 matching lines @@
     return v8::Date::New(isolate, std::isfinite(value) ? value : std::numeric_limits<double>::quiet_NaN());
 }
 
 // FIXME: Remove the special casing for NodeFilter and XPathNSResolver.
 PassRefPtrWillBeRawPtr<NodeFilter> toNodeFilter(v8::Handle<v8::Value>, v8::Handle<v8::Object>, ScriptState*);
 PassRefPtrWillBeRawPtr<XPathNSResolver> toXPathNSResolver(v8::Handle<v8::Value>, v8::Isolate*);
 
 template<class T> struct NativeValueTraits;
 
 template<>
+struct NativeValueTraits<bool> {
+    static inline bool nativeValueMayFail(v8::Isolate* isolate, const v8::Handle<v8::Value>& value, ExceptionState& exceptionState)
+    {
+        return toBoolean(value, exceptionState);
+    }
+};
+
+template<>
 struct NativeValueTraits<String> {
     static inline String nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
     {
         TOSTRING_DEFAULT(V8StringResource<>, stringValue, value, String());
         return stringValue;
     }
+    static inline String nativeValueMayFail(v8::Isolate* isolate, const v8::Handle<v8::Value>& value, ExceptionState& exceptionState)
+    {
+        // FIXME: handle failure
+        TOSTRING_DEFAULT(V8StringResource<>, stringValue, value, String());
+        return stringValue;
+    }
 };
 
 template<>
+struct NativeValueTraits<AtomicString> {
+    static inline AtomicString nativeValueMayFail(v8::Isolate* isolate, const v8::Handle<v8::Value>& value, ExceptionState& exceptionState)
+    {
+        TOSTRING_DEFAULT(V8StringResource<>, stringValue, value, AtomicString());
+        return stringValue;
+    }
+};
+
+template<>
+struct NativeValueTraits<int> {
+    static inline int nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
+    {
+        return toInt32(value);
+    }
+    static inline int nativeValueMayFail(v8::Isolate* isolate, const v8::Handle<v8::Value>& value, ExceptionState& exceptionState)
+    {
+        return toInt32(value, NormalConversion, exceptionState);
+    }
+};
+
+template<>
 struct NativeValueTraits<unsigned> {
     static inline unsigned nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
     {
         return toUInt32(value);
     }
+    static inline unsigned nativeValueMayFail(v8::Isolate* isolate, const v8::Handle<v8::Value>& value, ExceptionState& exceptionState)
+    {
+        return toUInt32(value, NormalConversion, exceptionState);
+    }
 };
 
 template<>
+struct NativeValueTraits<unsigned long> {
+    static inline unsigned long nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
+    {
+        return toUInt32(value);
+    }
+    static inline unsigned long nativeValueMayFail(v8::Isolate* isolate, const v8::Handle<v8::Value>& value, ExceptionState& exceptionState)
+    {
+        return toUInt32(value, NormalConversion, exceptionState);
+    }
+};
+
+template<>
+struct NativeValueTraits<unsigned long long> {
+    static inline unsigned long long nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
+    {
+        return toUInt64(value);
+    }
+    static inline unsigned long long nativeValueMayFail(v8::Isolate* isolate, const v8::Handle<v8::Value>& value, ExceptionState& exceptionState)
+    {
+        return toUInt64(value, NormalConversion, exceptionState);
+    }
+};
+
+template<>
+struct NativeValueTraits<short> {
+    static inline short nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
+    {
+        return toInt16(value);
+    }
+    static inline short nativeValueMayFail(v8::Isolate* isolate, const v8::Handle<v8::Value>& value, ExceptionState& exceptionState)
+    {
+        return toInt16(value, NormalConversion, exceptionState);
+    }
+};
+
+template<>
+struct NativeValueTraits<unsigned short> {
+    static inline unsigned short nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
+    {
+        return toUInt16(value);
+    }
+    static inline unsigned short nativeValueMayFail(v8::Isolate* isolate, const v8::Handle<v8::Value>& value, ExceptionState& exceptionState)
+    {
+        return toUInt16(value, NormalConversion, exceptionState);
+    }
+};
+
+template<>
 struct NativeValueTraits<float> {
     static inline float nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
     {
         return static_cast<float>(value->NumberValue());
     }
+    static inline float nativeValueMayFail(v8::Isolate* isolate, const v8::Handle<v8::Value>& value, ExceptionState& exceptionState)
+    {
+        return toFloat(value, exceptionState);
+    }
 };
 
 template<>
 struct NativeValueTraits<double> {
     static inline double nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
     {
         return static_cast<double>(value->NumberValue());
     }
+    static inline double nativeValueMayFail(v8::Isolate* isolate, const v8::Handle<v8::Value>& value, ExceptionState& exceptionState)
+    {
+        return toDouble(value, exceptionState);
+    }
 };
 
 template<>
 struct NativeValueTraits<v8::Handle<v8::Value> > {
     static inline v8::Handle<v8::Value> nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
     {
         return value;
     }
 };
 
 template<>
 struct NativeValueTraits<ScriptValue> {
     static inline ScriptValue nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)
     {
         return ScriptValue(ScriptState::current(isolate), value);
     }
+    static inline ScriptValue nativeValueMayFail(v8::Isolate* isolate, const v8::Handle<v8::Value>& value, ExceptionState& exceptionState)
+    {
+        return ScriptValue(ScriptState::current(isolate), value);
+    }
 };
 
 v8::Handle<v8::Value> toV8Sequence(v8::Handle<v8::Value>, uint32_t& length, v8::Isolate*);
 
 // Converts a JavaScript value to an array as per the Web IDL specification:
 // http://www.w3.org/TR/2012/CR-WebIDL-20120419/#es-array
 template <class T, class V8T>
 Vector<RefPtr<T> > toRefPtrNativeArrayUnchecked(v8::Local<v8::Value> v8Value, uint32_t length, v8::Isolate* isolate, bool* success = 0)
 {
     Vector<RefPtr<T> > result;
@@ skipping 42 matching lines @@
     if (value->IsArray()) {
         length = v8::Local<v8::Array>::Cast(v8Value)->Length();
     } else if (toV8Sequence(value, length, isolate).IsEmpty()) {
         V8ThrowException::throwTypeError(ExceptionMessages::notASequenceTypeProperty(propertyName), isolate);
         return Vector<RefPtr<T> >();
     }
     return toRefPtrNativeArrayUnchecked<T, V8T>(v8Value, length, isolate, success);
 }
 
 template <class T, class V8T>
-WillBeHeapVector<RefPtrWillBeMember<T> > toRefPtrWillBeMemberNativeArray(v8::Handle<v8::Value> value, int argumentIndex, v8::Isolate* isolate, bool* success = 0)
+WillBeHeapVector<RefPtrWillBeMember<T> > toRefPtrWillBeMemberNativeArray(v8::Handle<v8::Value> value, int argumentIndex, v8::Isolate* isolate, ExceptionState* exceptionState = 0)
 {
-    if (success)
-        *success = true;
-
     v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value));
     uint32_t length = 0;
     if (value->IsArray()) {
         length = v8::Local<v8::Array>::Cast(v8Value)->Length();
     } else if (toV8Sequence(value, length, isolate).IsEmpty()) {
-        V8ThrowException::throwTypeError(ExceptionMessages::notAnArrayTypeArgumentOrValue(argumentIndex), isolate);
+        if (exceptionState)
+            exceptionState->throwTypeError(ExceptionMessages::notAnArrayTypeArgumentOrValue(argumentIndex));
+        else
+            V8ThrowException::throwTypeError(ExceptionMessages::notAnArrayTypeArgumentOrValue(argumentIndex), isolate);
         return WillBeHeapVector<RefPtrWillBeMember<T> >();
     }
 
     WillBeHeapVector<RefPtrWillBeMember<T> > result;
     result.reserveInitialCapacity(length);
     v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(v8Value);
     for (uint32_t i = 0; i < length; ++i) {
         v8::Handle<v8::Value> element = object->Get(i);
         if (V8T::hasInstance(element, isolate)) {
             v8::Handle<v8::Object> elementObject = v8::Handle<v8::Object>::Cast(element);
             result.uncheckedAppend(V8T::toImpl(elementObject));
         } else {
-            if (success)
-                *success = false;
-            V8ThrowException::throwTypeError("Invalid Array element type", isolate);
+            if (exceptionState)
+                exceptionState->throwTypeError("Invalid Array element type");
+            else
+                V8ThrowException::throwTypeError("Invalid Array element type", isolate);
             return WillBeHeapVector<RefPtrWillBeMember<T> >();
         }
     }
     return result;
 }
 
 template <class T, class V8T>
-WillBeHeapVector<RefPtrWillBeMember<T> > toRefPtrWillBeMemberNativeArray(v8::Handle<v8::Value> value, const String& propertyName, v8::Isolate* isolate, bool* success = 0)
+WillBeHeapVector<RefPtrWillBeMember<T> > toRefPtrWillBeMemberNativeArray(v8::Handle<v8::Value> value, const String& propertyName, v8::Isolate* isolate, ExceptionState* exceptionState = 0)
 {
-    if (success)
-        *success = true;
-
     v8::Local<v8::Value> v8Value(v8::Local<v8::Value>::New(isolate, value));
     uint32_t length = 0;
     if (value->IsArray()) {
         length = v8::Local<v8::Array>::Cast(v8Value)->Length();
     } else if (toV8Sequence(value, length, isolate).IsEmpty()) {
-        V8ThrowException::throwTypeError(ExceptionMessages::notASequenceTypeProperty(propertyName), isolate);
+        if (exceptionState)
+            exceptionState->throwTypeError(ExceptionMessages::notASequenceTypeProperty(propertyName));
+        else
+            V8ThrowException::throwTypeError(ExceptionMessages::notASequenceTypeProperty(propertyName), isolate);
         return WillBeHeapVector<RefPtrWillBeMember<T> >();
     }
 
     WillBeHeapVector<RefPtrWillBeMember<T> > result;
     result.reserveInitialCapacity(length);
     v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(v8Value);
     for (uint32_t i = 0; i < length; ++i) {
         v8::Handle<v8::Value> element = object->Get(i);
         if (V8T::hasInstance(element, isolate)) {
             v8::Handle<v8::Object> elementObject = v8::Handle<v8::Object>::Cast(element);
             result.uncheckedAppend(V8T::toImpl(elementObject));
         } else {
-            if (success)
-                *success = false;
-            V8ThrowException::throwTypeError("Invalid Array element type", isolate);
+            if (exceptionState)
+                exceptionState->throwTypeError("Invalid Array element type");
+            else
+                V8ThrowException::throwTypeError("Invalid Array element type", isolate);
             return WillBeHeapVector<RefPtrWillBeMember<T> >();
         }
     }
     return result;
 }
 
 template <class T, class V8T>
 HeapVector<Member<T> > toMemberNativeArray(v8::Handle<v8::Value> value, int argumentIndex, v8::Isolate* isolate, bool* success = 0)
 {
     if (success)
@@ skipping 223 matching lines @@
 v8::Local<v8::Value> v8IteratorResult(v8::Isolate*, v8::Handle<v8::Value>);
 template <typename T>
 v8::Local<v8::Value> v8IteratorResult(ScriptState* scriptState, const T& value)
 {
     return v8IteratorResult(scriptState->isolate(), V8ValueTraits<T>::toV8Value(value, scriptState->context()->Global(), scriptState->isolate()));
 }
 
 } // namespace blink
 
 #endif // V8Binding_h