Implement custom element construction and some 'define' checks

third_party/WebKit/Source/bindings/core/v8/ExceptionState.h

 /*
  * Copyright (C) 2013 Google Inc. 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.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 66 matching lines @@
         : m_code(0)
         , m_context(context)
         , m_propertyName(0)
         , m_interfaceName(interfaceName)
         , m_creationContext(creationContext)
         , m_isolate(isolate) { ASSERT(m_context == ConstructionContext || m_context == EnumerationContext || m_context == IndexedSetterContext || m_context == IndexedGetterContext || m_context == IndexedDeletionContext); }
 
     virtual void throwDOMException(const ExceptionCode&, const String& message);
     virtual void throwTypeError(const String& message);
     virtual void throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage = String());
+    virtual void throwSyntaxError(const String& message);
     virtual void throwRangeError(const String& message);
 
     bool hadException() const { return !m_exception.isEmpty() || m_code; }
     void clearException();
 
     ExceptionCode code() const { return m_code; }
     const String& message() const { return m_message; }
 
     bool throwIfNeeded()
     {
@@ skipping 47 matching lines @@
 };
 
 // Used if exceptions can/should not be directly thrown.
 class CORE_EXPORT NonThrowableExceptionState final : public ExceptionState {
     WTF_MAKE_NONCOPYABLE(NonThrowableExceptionState);
 public:
     NonThrowableExceptionState(): ExceptionState(ExceptionState::UnknownContext, 0, 0, v8::Local<v8::Object>(), v8::Isolate::GetCurrent()) { }
     void throwDOMException(const ExceptionCode&, const String& message) override;
     void throwTypeError(const String& message = String()) override;
     void throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage = String()) override;
+    void throwSyntaxError(const String& message = String()) override;

[Yuki, 2016/05/11 01:59:02]

https://engdoc.corp.google.com/eng/doc/devguide/cpp/styleguide.shtml?cl=head#...
If this is not so important, I'd prefer not having the default argument.

[Yuki, 2016/05/11 09:29:53]

ping?

     void throwRangeError(const String& message) override;
 };
 
 // Used if any exceptions thrown are ignorable.
 class CORE_EXPORT TrackExceptionState final : public ExceptionState {
     WTF_MAKE_NONCOPYABLE(TrackExceptionState);
 public:
     TrackExceptionState(): ExceptionState(ExceptionState::UnknownContext, 0, 0, v8::Local<v8::Object>(), v8::Isolate::GetCurrent()) { }
     void throwDOMException(const ExceptionCode&, const String& message) override;
     void throwTypeError(const String& message = String()) override;
     void throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage = String()) override;
+    void throwSyntaxError(const String& message = String()) override;

[Yuki, 2016/05/11 01:59:02]

Ditto.

     void throwRangeError(const String& message) override;
 };
 
 } // namespace blink
 
 #endif // ExceptionState_h