Implement URLSearchParams.

Source/bindings/v8/custom/V8URLSearchParamsCustom.cpp

+/*
+ * Copyright (c) 2014, Opera Software ASA. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name of Opera Software ASA 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 HOLDER 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 "V8URLSearchParams.h"
+
+#include "V8HTMLAnchorElement.h"
+#include "V8URL.h"
+#include "bindings/v8/V8Binding.h"
+#include "bindings/v8/V8DOMWrapper.h"
+#include "bindings/v8/V8GCController.h"
+#include "bindings/v8/V8Utilities.h"
+#include "core/dom/DOMURL.h"
+#include "core/dom/DOMURLSearchParams.h"
+#include "core/dom/DOMURLUtils.h"
+
+namespace WebCore {
+
+void V8URLSearchParams::visitDOMWrapper(void* object, const v8::Persistent<v8::Object>& wrapper, v8::Isolate* isolate)

[abarth-chromium, 2014/01/22 20:52:39]

Can we do this without custom code?  I see that we have some code like this in
the generated bindings.  Why can't we generate the code for this case?

[sof, 2014/01/22 21:07:29]

https://codereview.chromium.org/143313002/#msg7 tried to explain why. I'll
follow up with an attempt at a clearer explanation tomorrow.

+{
+    DOMURLSearchParams* impl = fromInternalPointer(object);
+    v8::Local<v8::Object> creationContext = v8::Local<v8::Object>::New(isolate, wrapper);
+    V8WrapperInstantiationScope scope(creationContext, isolate);
+    if (DOMURLUtils* urlObject = impl->urlObject()) {
+        switch (urlObject->implementedBy()) {
+        case DOMURLUtils::Anchor: {
+            HTMLAnchorElement* anchor = static_cast<HTMLAnchorElement*>(urlObject);
+            if (!DOMDataStore::containsWrapper<V8HTMLAnchorElement>(anchor, isolate))
+                wrap(anchor, creationContext, isolate);
+            DOMDataStore::setWrapperReference<V8HTMLAnchorElement>(wrapper, anchor, isolate);
+            break;
+        }
+        case DOMURLUtils::DomURL: {
+            DOMURL* domURL = static_cast<DOMURL*>(urlObject);
+            if (!DOMDataStore::containsWrapper<V8URL>(domURL, isolate))
+                wrap(domURL, creationContext, isolate);
+            DOMDataStore::setWrapperReference<V8URL>(wrapper, domURL, isolate);
+            break;
+        }
+        default:
+            // Either an entirely unexpected condition or you've forgotten to
+            // extend this switch to include handling for a new type.
+            ASSERT_NOT_REACHED();
+            break;
+        }
+    }
+    setObjectGroup(object, wrapper, isolate);
+}
+
+} // namespace WebCore