Import Dart bindings as of Blink r188698. This merely copies the files over and does not attach any…

sky/engine/bindings-dart/core/dart/DartExceptionState.cpp

+// Copyright (c) 2014, 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
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// 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.
+
+#include "config.h"
+#include "bindings/core/dart/DartExceptionState.h"
+
+#include "bindings/core/dart/DartDOMException.h"
+#include "bindings/core/dart/DartUtilities.h"
+#include "wtf/text/WTFString.h"
+
+#include <stdio.h>
+
+namespace blink {
+
+void DartExceptionState::throwDOMException(const ExceptionCode& ec, const String& message)
+{
+    setException(ec, message);
+}
+
+void DartExceptionState::throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage)
+{
+    // SecurityError is thrown via ::throwSecurityError, and _careful_ consideration must be given to the data exposed to JavaScript via the 'sanitizedMessage'.
+    setException(SecurityError, sanitizedMessage);
+}
+
+void DartExceptionState::rethrowV8Exception(v8::Handle<v8::Value> value)
+{
+    const char* msg = "A Javascript exception occurred";
+    ASSERT(!m_exception);
+    m_exception = Dart_NewPersistentHandle(Dart_NewStringFromCString(msg));
+    setMessage(msg);
+    setHadException(true);
+}
+
+void DartExceptionState::setException(const ExceptionCode& ec, const String& msg)
+{
+    setCode(ec);
+    setHadException(true);
+    String excp = DOMException::getErrorMessage(ec) + " " + msg;
+    RefPtr<DOMException> domException = DOMException::create(ec, excp);
+    ASSERT(!m_exception);
+    m_exception = Dart_NewPersistentHandle(DartDOMException::toDart(domException));
+    setMessage(msg);
+}
+
+void DartExceptionState::clearException()
+{
+    setCode(0);
+    setHadException(false);
+    if (m_exception) {
+        Dart_DeletePersistentHandle(m_exception);
+        m_exception = 0;
+    }
+}
+
+void DartExceptionState::throwException()
+{
+    // FIXMEMULTIVM: The control flow here does not match V8's. Dart_ThrowException immediately
+    // transfers control, which may skip running C++ destructors on the stack and ref-counting
+    // leaks. Should move throwIfNeeded from ExceptionState to V8ExceptionState and remove this.
+    ASSERT_NOT_REACHED();
+
+    ASSERT(code());
+    ASSERT(hadException());
+    ASSERT(m_exception);
+    DartDOMData* domData = DartDOMData::current();
+    Dart_SetPersistentHandle(domData->currentException(), m_exception);
+    Dart_DeletePersistentHandle(m_exception);
+    m_exception = 0;
+    Dart_ThrowException(domData->currentException());
+    ASSERT_NOT_REACHED();
+}
+
+Dart_Handle DartExceptionState::toDart(Dart_NativeArguments args, bool autoDartScope)
+{
+    ASSERT(hadException());
+    ASSERT(m_exception);
+
+    if (autoDartScope) {
+        Dart_Handle localException = Dart_HandleFromPersistent(m_exception);
+        Dart_DeletePersistentHandle(m_exception);
+        m_exception = 0;
+        return localException;
+    }
+    DartDOMData* domData = static_cast<DartDOMData*>(Dart_GetNativeIsolateData(args));
+    Dart_SetPersistentHandle(domData->currentException(), m_exception);
+    Dart_DeletePersistentHandle(m_exception);
+    m_exception = 0;
+    return domData->currentException();
+}
+
+void DartExceptionState::throwTypeError(const String& message)
+{
+    throwDartCoreError("ArgumentError", message, V8TypeError);
+}
+
+void DartExceptionState::throwRangeError(const String& message)
+{
+    throwDartCoreError("RangeError", message, V8RangeError);
+}
+
+void DartExceptionState::throwDartCoreError(const String& className, const String& message, const ExceptionCode& ec)
+{
+    setCode(ec);
+    setHadException(true);
+    setMessage(message);
+
+    Dart_Handle error = DartUtilities::toDartCoreException(className, message);
+
+    ASSERT(!m_exception);
+    m_exception = Dart_NewPersistentHandle(error);
+}
+
+ScriptPromise DartExceptionState::reject(ScriptState* state)
+{
+    // FIXMEDART: implement.
+    DART_UNIMPLEMENTED();
+    return ScriptPromise::empty(state);
+}
+
+
+} // namespace blink