WIP don't review: Implement Future

Source/bindings/v8/custom/V8FutureResolverCustom.cpp

+/*
+ * 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
+ * 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 "V8FutureResolver.h"
+
+// Include generated files.
+#include "V8Future.h"
+
+#include "bindings/v8/V8AnyCallback.h"
+#include "bindings/v8/V8Binding.h"
+#include "bindings/v8/V8DOMWrapper.h"
+#include "bindings/v8/V8FutureInit.h"
+#include "bindings/v8/V8Utilities.h"
+#include "core/dom/AnyCallback.h"
+#include "core/dom/Future.h"
+#include "core/dom/FutureInit.h"
+#include "core/platform/Logging.h"
+#include "wtf/RefPtr.h"
+
+namespace WebCore {
+
+v8::Handle<v8::Value> V8FutureResolver::resolveMethodCustom(const v8::Arguments& args)
+{
+    FutureResolver* impl = toNative(args.Holder());
+
+    if (impl->resolved())
+        return v8Undefined();
+
+    v8::HandleScope scope;
+
+    v8::Handle<v8::Value> then;
+
+    LOG(Network, "Get then");
+
+    if (args.Length() >= 1 && args[0]->IsObject()) {
+        v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(args[0]);
+        v8::Handle<v8::String> key = v8::String::NewSymbol("then");
+        if (object->Has(key)) {
+            v8::TryCatch exceptionCatcher;
+            exceptionCatcher.SetVerbose(true); // ?
+            then = object->Get(key);
+            if (exceptionCatcher.HasCaught()) {
+                impl->rejectInternal(exceptionCatcher.Exception(), true);
+                return v8Undefined();
+            }
+        }
+    }
+
+    LOG(Network, "then is callable?");
+
+    if (!then.IsEmpty() && then->IsFunction()) {
+        v8::TryCatch exceptionCatcher;
+        exceptionCatcher.SetVerbose(true); // ?
+
+        LOG(Network, "args[0] is Future?");
+
+        if (args.Length() <= 0 || !V8Future::HasInstance(args[0], args.GetIsolate(), worldType(args.GetIsolate())))
+            return v8Undefined();
+        Future* argFuture = V8Future::toNative(v8::Handle<v8::Object>::Cast(args[0]));
+        argFuture->then(impl->getFuture());
+
+        // // FIXME
+        // v8::Handle<v8::Value> argv[] = { };
+
+        // v8::Handle<v8::Value> result = ScriptController::callFunctionWithInstrumentation(getScriptExecutionContext(), v8::Handle<v8::Function>::Cast(then), v8::Handle<v8::Object>::Cast(value.v8Value()), 0, argv);
+        if (exceptionCatcher.HasCaught())
+            impl->rejectInternal(exceptionCatcher.Exception(), true);
+        return v8Undefined();
+    }
+
+    LOG(Network, "resolve resulted in accept");
+
+    if (args.Length() >= 1 && !args[0].IsEmpty())
+        impl->acceptInternal(args[0], true);
+    else
+        impl->acceptInternal(v8Undefined(), true);
+
+    LOG(Network, "resolve end");
+
+    return v8Undefined();
+}
+
+} // namespace WebCore