Dart bindings for WebKit

Source/WebCore/bindings/dart/DartScriptArguments.cpp

+/*
+ * Copyright (c) 2010 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 "DartScriptArguments.h"
+
+#include "DartIsolateState.h"
+#include "DartUtilities.h"
+#include "InspectorValues.h"
+#include "ScriptValue.h"
+
+namespace WebCore {
+
+static PassRefPtr<InspectorValue> toInspectorValue(Dart_Handle value)
+{
+    if (Dart_IsNull(value))
+        return InspectorValue::null();
+    if (Dart_IsInteger(value))
+        return InspectorBasicValue::create(DartUtilities::toDouble(value));
+    if (Dart_IsBoolean(value))
+        return InspectorBasicValue::create(DartUtilities::toBool(value));
+    if (Dart_IsDouble(value))
+        return InspectorBasicValue::create(DartUtilities::toDouble(value));
+    if (Dart_IsString(value))
+        return InspectorString::create(DartUtilities::dartStringToString(value));
+    if (Dart_IsList(value)) {
+        // FIXME: implement Dart list conversion.
+        return InspectorString::create("[...]");
+    }
+    // FIXME: implement Dart object conversion.
+    return InspectorString::create("{...}");
+}
+
+PassRefPtr<DartScriptArguments> DartScriptArguments::create(Dart_Handle argument, Dart_Isolate isolate)
+{
+    return adoptRef(new DartScriptArguments(argument, isolate));
+}
+
+DartScriptArguments::DartScriptArguments(Dart_Handle argument, Dart_Isolate isolate)
+    : m_argument(argument)
+    , m_isolate(isolate)
+{
+}
+
+DartScriptArguments::~DartScriptArguments()
+{
+    // FIXME: isolate can already be shut down at this point, so we can't delete
+    // persistent handle here safely.
+    // Uncomment this when isolate lifetime is managed more carefully.
+    // DartIsolateState::push(m_isolate);
+    // Dart_DeletePersistentHandle(m_argument);
+    // DartIsolateState::pop();
+}
+
+PassRefPtr<InspectorArray> DartScriptArguments::wrap(InjectedScriptManager*) const
+{
+    DartIsolateState::Scope scope(m_isolate);
+    DartApiScope apiScope;
+    RefPtr<InspectorArray> wrappedArguments = InspectorArray::create();
+    wrappedArguments->pushValue(toInspectorValue(m_argument));
+    return wrappedArguments.release();
+}
+
+bool DartScriptArguments::argumentGetString(size_t index, String& result) const
+{
+    if (index >= argumentCount())
+        return false;
+    if (!Dart_IsString(m_argument))
+        return false;
+    result = DartUtilities::dartStringToString(m_argument);
+    return true;
+}
+
+bool DartScriptArguments::argumentToString(size_t index, String& result) const
+{
+    if (index >= argumentCount())
+        return false;
+    Dart_Handle stringHandle = Dart_ToString(m_argument);
+    if (!Dart_IsError(stringHandle))
+        result = DartUtilities::dartStringToString(stringHandle);
+    return true;
+}
+
+ScriptValue DartScriptArguments::argumentAt(size_t index) const
+{
+    return ScriptValue();
+}
+
+
+} // namespace WebCore