Title: [206737] trunk/Source/WebCore
Revision
206737
Author
[email protected]
Date
2016-10-03 10:57:27 -0700 (Mon, 03 Oct 2016)

Log Message

Remove FetchBody::m_isEmpty
https://bugs.webkit.org/show_bug.cgi?id=162857

Patch by Youenn Fablet <[email protected]> on 2016-10-03
Reviewed by Alex Christensen.

No change of behavior.

Moving handling of null bodies in FetchBodyOwner, by having an Optional<FetchBody> in FetchBodyOwner.
Moving storage of m_contentType in FetchBodyOwner.

Moving header storage from FetchResponse/FetchRequest to FetchBodyOwner, as it helps updating m_contentType.

* Modules/fetch/FetchBody.cpp: removing m_isEmpty and m_contentType.
(WebCore::FetchBody::extract): Computes the default content-type which is stored in FetchBodyOwner.
(WebCore::FetchBody::blob):
(WebCore::FetchBody::consume):
(WebCore::FetchBody::consumeAsStream):
(WebCore::FetchBody::loadingSucceeded):
(WebCore::FetchBody::bodyForInternalRequest):
(WebCore::FetchBody::clone):
* Modules/fetch/FetchBody.h:
(WebCore::FetchBody::loadingBody):
(WebCore::FetchBody::FetchBody):
* Modules/fetch/FetchBodyOwner.cpp:
(WebCore::FetchBodyOwner::FetchBodyOwner):
(WebCore::FetchBodyOwner::stop):
(WebCore::FetchBodyOwner::arrayBuffer):
(WebCore::FetchBodyOwner::blob):
(WebCore::FetchBodyOwner::cloneBody): Needs to clone m_contentType as well.
(WebCore::FetchBodyOwner::extractBody):
(WebCore::FetchBodyOwner::updateContentType):
(WebCore::FetchBodyOwner::consumeOnceLoadingFinished):
(WebCore::FetchBodyOwner::formData):
(WebCore::FetchBodyOwner::json):
(WebCore::FetchBodyOwner::text):
(WebCore::FetchBodyOwner::loadBlob):
(WebCore::FetchBodyOwner::blobLoadingSucceeded):
(WebCore::FetchBodyOwner::blobLoadingFailed):
(WebCore::FetchBodyOwner::finishBlobLoading):
* Modules/fetch/FetchBodyOwner.h:
(WebCore::FetchBodyOwner::body):
(WebCore::FetchBodyOwner::isBodyNull):
* Modules/fetch/FetchRequest.cpp:
(WebCore::FetchRequest::setBody):
(WebCore::FetchRequest::internalRequest):
(WebCore::FetchRequest::clone):
* Modules/fetch/FetchRequest.h:
(WebCore::FetchRequest::FetchRequest):
* Modules/fetch/FetchResponse.cpp:
(WebCore::FetchResponse::initializeWith):
(WebCore::FetchResponse::FetchResponse):
(WebCore::FetchResponse::cloneForJS):
(WebCore::FetchResponse::fetch):
(WebCore::FetchResponse::BodyLoader::didSucceed):
(WebCore::FetchResponse::BodyLoader::didReceiveResponse):
(WebCore::FetchResponse::BodyLoader::start):
(WebCore::FetchResponse::createReadableStreamSource):
* Modules/fetch/FetchResponse.h:

Modified Paths

Diff

Modified: trunk/Source/WebCore/ChangeLog (206736 => 206737)


--- trunk/Source/WebCore/ChangeLog	2016-10-03 17:44:29 UTC (rev 206736)
+++ trunk/Source/WebCore/ChangeLog	2016-10-03 17:57:27 UTC (rev 206737)
@@ -1,3 +1,64 @@
+2016-10-03  Youenn Fablet  <[email protected]>
+
+        Remove FetchBody::m_isEmpty
+        https://bugs.webkit.org/show_bug.cgi?id=162857
+
+        Reviewed by Alex Christensen.
+
+        No change of behavior.
+
+        Moving handling of null bodies in FetchBodyOwner, by having an Optional<FetchBody> in FetchBodyOwner.
+        Moving storage of m_contentType in FetchBodyOwner.
+
+        Moving header storage from FetchResponse/FetchRequest to FetchBodyOwner, as it helps updating m_contentType.
+
+        * Modules/fetch/FetchBody.cpp: removing m_isEmpty and m_contentType.
+        (WebCore::FetchBody::extract): Computes the default content-type which is stored in FetchBodyOwner.
+        (WebCore::FetchBody::blob):
+        (WebCore::FetchBody::consume):
+        (WebCore::FetchBody::consumeAsStream):
+        (WebCore::FetchBody::loadingSucceeded):
+        (WebCore::FetchBody::bodyForInternalRequest):
+        (WebCore::FetchBody::clone):
+        * Modules/fetch/FetchBody.h:
+        (WebCore::FetchBody::loadingBody):
+        (WebCore::FetchBody::FetchBody):
+        * Modules/fetch/FetchBodyOwner.cpp:
+        (WebCore::FetchBodyOwner::FetchBodyOwner):
+        (WebCore::FetchBodyOwner::stop):
+        (WebCore::FetchBodyOwner::arrayBuffer):
+        (WebCore::FetchBodyOwner::blob):
+        (WebCore::FetchBodyOwner::cloneBody): Needs to clone m_contentType as well.
+        (WebCore::FetchBodyOwner::extractBody):
+        (WebCore::FetchBodyOwner::updateContentType):
+        (WebCore::FetchBodyOwner::consumeOnceLoadingFinished):
+        (WebCore::FetchBodyOwner::formData):
+        (WebCore::FetchBodyOwner::json):
+        (WebCore::FetchBodyOwner::text):
+        (WebCore::FetchBodyOwner::loadBlob):
+        (WebCore::FetchBodyOwner::blobLoadingSucceeded):
+        (WebCore::FetchBodyOwner::blobLoadingFailed):
+        (WebCore::FetchBodyOwner::finishBlobLoading):
+        * Modules/fetch/FetchBodyOwner.h:
+        (WebCore::FetchBodyOwner::body):
+        (WebCore::FetchBodyOwner::isBodyNull):
+        * Modules/fetch/FetchRequest.cpp:
+        (WebCore::FetchRequest::setBody):
+        (WebCore::FetchRequest::internalRequest):
+        (WebCore::FetchRequest::clone):
+        * Modules/fetch/FetchRequest.h:
+        (WebCore::FetchRequest::FetchRequest):
+        * Modules/fetch/FetchResponse.cpp:
+        (WebCore::FetchResponse::initializeWith):
+        (WebCore::FetchResponse::FetchResponse):
+        (WebCore::FetchResponse::cloneForJS):
+        (WebCore::FetchResponse::fetch):
+        (WebCore::FetchResponse::BodyLoader::didSucceed):
+        (WebCore::FetchResponse::BodyLoader::didReceiveResponse):
+        (WebCore::FetchResponse::BodyLoader::start):
+        (WebCore::FetchResponse::createReadableStreamSource):
+        * Modules/fetch/FetchResponse.h:
+
 2016-10-03  Andy Estes  <[email protected]>
 
         ASSERTION FAILED: result in WebCore::CSSParser::parseURI

Modified: trunk/Source/WebCore/Modules/fetch/FetchBody.cpp (206736 => 206737)


--- trunk/Source/WebCore/Modules/fetch/FetchBody.cpp	2016-10-03 17:44:29 UTC (rev 206736)
+++ trunk/Source/WebCore/Modules/fetch/FetchBody.cpp	2016-10-03 17:57:27 UTC (rev 206737)
@@ -47,92 +47,41 @@
 
 namespace WebCore {
 
-FetchBody::FetchBody(Ref<const Blob>&& blob)
-    : m_data(WTFMove(blob))
-    , m_contentType(this->blobBody().type())
+Optional<FetchBody> FetchBody::extract(ScriptExecutionContext& context, JSC::ExecState& state, JSC::JSValue value, String& contentType)
 {
-}
-
-FetchBody::FetchBody(DOMFormData& formData, Document& document)
-    : m_data(FormData::createMultiPart(formData, formData.encoding(), &document))
-    , m_contentType(makeString("multipart/form-data;boundary=", this->formDataBody().boundary().data()))
-{
-}
-
-FetchBody::FetchBody(String&& text)
-    : m_data(WTFMove(text))
-    , m_contentType(ASCIILiteral("text/plain;charset=UTF-8"))
-{
-}
-
-FetchBody::FetchBody(Ref<const ArrayBuffer>&& data)
-    : m_data(WTFMove(data))
-{
-}
-
-FetchBody::FetchBody(Ref<const ArrayBufferView>&& dataView)
-    : m_data(WTFMove(dataView))
-{
-}
-
-FetchBody::FetchBody(Ref<const URLSearchParams>&& url)
-    : m_data(WTFMove(url))
-    , m_contentType(ASCIILiteral("application/x-www-form-urlencoded;charset=UTF-8"))
-{
-}
-
-FetchBody::FetchBody(const String& contentType, const FetchBodyConsumer& consumer)
-    : m_contentType(contentType)
-    , m_consumer(consumer)
-{
-}
-
-FetchBody FetchBody::extract(ScriptExecutionContext& context, JSC::ExecState& state, JSC::JSValue value)
-{
-    if (value.inherits(JSBlob::info()))
-        return FetchBody(*JSBlob::toWrapped(value));
+    if (value.inherits(JSBlob::info())) {
+        auto& blob = *JSBlob::toWrapped(value);
+        contentType = blob.type();
+        return FetchBody(blob);
+    }
     if (value.inherits(JSDOMFormData::info())) {
         ASSERT(!context.isWorkerGlobalScope());
-        return FetchBody(*JSDOMFormData::toWrapped(value), static_cast<Document&>(context));
+        auto& domFormData = *JSDOMFormData::toWrapped(value);
+        auto formData = FormData::createMultiPart(domFormData, domFormData.encoding(), &static_cast<Document&>(context));
+        contentType = makeString("multipart/form-data;boundary=", formData->boundary().data());
+        return FetchBody(WTFMove(formData));
     }
-    if (value.isString())
+    if (value.isString()) {
+        contentType = ASCIILiteral("text/plain;charset=UTF-8");
         return FetchBody(value.toWTFString(&state));
-    if (value.inherits(JSURLSearchParams::info()))
+    }
+    if (value.inherits(JSURLSearchParams::info())) {
+        contentType = ASCIILiteral("application/x-www-form-urlencoded;charset=UTF-8");
         return FetchBody(*JSURLSearchParams::toWrapped(value));
-    if (value.inherits(JSReadableStream::info())) {
-        FetchBody body;
-        body.m_isEmpty = false;
-        return body;
-    } if (value.inherits(JSC::JSArrayBuffer::info())) {
+    }
+    if (value.inherits(JSReadableStream::info()))
+        return FetchBody();
+    if (value.inherits(JSC::JSArrayBuffer::info())) {
         ArrayBuffer* data = ""
         ASSERT(data);
-        return { *data };
+        return FetchBody(*data);
     }
     if (value.inherits(JSC::JSArrayBufferView::info()))
-        return { toArrayBufferView(value).releaseConstNonNull() };
+        return FetchBody(toArrayBufferView(value).releaseConstNonNull());
 
-    return { };
+    return Nullopt;
 }
 
-FetchBody FetchBody::extractFromBody(FetchBody* body)
-{
-    if (!body)
-        return { };
-
-    return FetchBody(WTFMove(*body));
-}
-
-void FetchBody::updateContentType(FetchHeaders& headers)
-{
-    String contentType = headers.fastGet(HTTPHeaderName::ContentType);
-    if (!contentType.isNull()) {
-        m_contentType = contentType;
-        return;
-    }
-    if (!m_contentType.isNull())
-        headers.fastSet(HTTPHeaderName::ContentType, m_contentType);
-}
-
 void FetchBody::arrayBuffer(FetchBodyOwner& owner, Ref<DeferredPromise>&& promise)
 {
     m_consumer.setType(FetchBodyConsumer::Type::ArrayBuffer);
@@ -139,10 +88,10 @@
     consume(owner, WTFMove(promise));
 }
 
-void FetchBody::blob(FetchBodyOwner& owner, Ref<DeferredPromise>&& promise)
+void FetchBody::blob(FetchBodyOwner& owner, Ref<DeferredPromise>&& promise, const String& contentType)
 {
     m_consumer.setType(FetchBodyConsumer::Type::Blob);
-    m_consumer.setContentType(Blob::normalizedContentType(extractMIMETypeFromMediaType(m_contentType)));
+    m_consumer.setContentType(Blob::normalizedContentType(extractMIMETypeFromMediaType(contentType)));
     consume(owner, WTFMove(promise));
 }
 
@@ -194,16 +143,12 @@
         consumeBlob(owner, WTFMove(promise));
         return;
     }
-    if (m_consumer.hasData()) {
-        m_consumer.resolve(WTFMove(promise));
-        return;
-    }
     if (isFormData()) {
         // FIXME: Support consuming FormData.
         promise->reject(0);
         return;
     }
-    ASSERT_NOT_REACHED();
+    m_consumer.resolve(WTFMove(promise));
 }
 
 #if ENABLE(READABLE_STREAM_API)
@@ -227,12 +172,12 @@
     } else if (isBlob()) {
         owner.loadBlob(blobBody(), nullptr);
         m_data = nullptr;
-    } else if (m_consumer.hasData())
+    } else if (isFormData())
+        source.error(ASCIILiteral("not implemented"));
+    else if (m_consumer.hasData())
         closeStream = source.enqueue(m_consumer.takeAsArrayBuffer());
-    else if (isEmpty())
+    else
         closeStream = true;
-    else
-        source.error(ASCIILiteral("not implemented"));
 
     if (closeStream)
         source.close();
@@ -275,7 +220,6 @@
 
 void FetchBody::loadingSucceeded()
 {
-    m_isEmpty = !m_consumer.hasData();
     if (m_consumePromise)
         m_consumer.resolve(m_consumePromise.releaseNonNull());
 }
@@ -282,8 +226,6 @@
 
 RefPtr<FormData> FetchBody::bodyForInternalRequest(ScriptExecutionContext& context) const
 {
-    if (isEmpty())
-        return nullptr;
     if (isText())
         return FormData::create(UTF8Encoding().encode(textBody(), EntitiesForUnencodables));
     if (isURLSearchParams())
@@ -310,8 +252,7 @@
 FetchBody FetchBody::clone() const
 {
     ASSERT(!m_consumePromise);
-    FetchBody clone(m_contentType, m_consumer);
-    clone.m_isEmpty = m_isEmpty;
+    FetchBody clone(m_consumer);
 
     if (isArrayBuffer())
         clone.m_data = arrayBufferBody();

Modified: trunk/Source/WebCore/Modules/fetch/FetchBody.h (206736 => 206737)


--- trunk/Source/WebCore/Modules/fetch/FetchBody.h	2016-10-03 17:44:29 UTC (rev 206736)
+++ trunk/Source/WebCore/Modules/fetch/FetchBody.h	2016-10-03 17:57:27 UTC (rev 206737)
@@ -37,6 +37,7 @@
 #include "FormData.h"
 #include "JSDOMPromise.h"
 #include "URLSearchParams.h"
+#include <wtf/Optional.h>
 #include <wtf/Variant.h>
 
 namespace JSC {
@@ -55,7 +56,7 @@
 class FetchBody {
 public:
     void arrayBuffer(FetchBodyOwner&, Ref<DeferredPromise>&&);
-    void blob(FetchBodyOwner&, Ref<DeferredPromise>&&);
+    void blob(FetchBodyOwner&, Ref<DeferredPromise>&&, const String&);
     void json(FetchBodyOwner&, Ref<DeferredPromise>&&);
     void text(FetchBodyOwner&, Ref<DeferredPromise>&&);
     void formData(FetchBodyOwner&, Ref<DeferredPromise>&& promise) { promise.get().reject(0); }
@@ -64,7 +65,6 @@
     void consumeAsStream(FetchBodyOwner&, FetchResponseSource&);
 #endif
 
-    bool isEmpty() const { return m_isEmpty; }
     bool isBlob() const { return std::experimental::holds_alternative<Ref<const Blob>>(m_data); }
     bool isFormData() const { return std::experimental::holds_alternative<Ref<FormData>>(m_data); }
     bool isArrayBuffer() const { return std::experimental::holds_alternative<Ref<const ArrayBuffer>>(m_data); }
@@ -72,14 +72,9 @@
     bool isURLSearchParams() const { return std::experimental::holds_alternative<Ref<const URLSearchParams>>(m_data); }
     bool isText() const { return std::experimental::holds_alternative<String>(m_data); }
 
-    void updateContentType(FetchHeaders&);
-    void setContentType(const String& contentType) { m_contentType = contentType; }
-    String contentType() const { return m_contentType; }
+    static Optional<FetchBody> extract(ScriptExecutionContext&, JSC::ExecState&, JSC::JSValue, String&);
+    static FetchBody loadingBody() { return { }; }
 
-    static FetchBody extract(ScriptExecutionContext&, JSC::ExecState&, JSC::JSValue);
-    static FetchBody extractFromBody(FetchBody*);
-    FetchBody() : m_isEmpty(true) { }
-
     void loadingFailed();
     void loadingSucceeded();
 
@@ -93,13 +88,14 @@
     FetchBody clone() const;
 
 private:
-    FetchBody(Ref<const Blob>&&);
-    FetchBody(Ref<const ArrayBuffer>&&);
-    FetchBody(Ref<const ArrayBufferView>&&);
-    FetchBody(DOMFormData&, Document&);
-    FetchBody(String&&);
-    FetchBody(Ref<const URLSearchParams>&&);
-    FetchBody(const String&, const FetchBodyConsumer&);
+    explicit FetchBody(Ref<const Blob>&& data) : m_data(WTFMove(data)) { }
+    explicit FetchBody(Ref<const ArrayBuffer>&& data) : m_data(WTFMove(data)) { }
+    explicit FetchBody(Ref<const ArrayBufferView>&& data) : m_data(WTFMove(data)) { }
+    explicit FetchBody(Ref<FormData>&& data) : m_data(WTFMove(data)) { }
+    explicit FetchBody(String&& data) : m_data(WTFMove(data)) { }
+    explicit FetchBody(Ref<const URLSearchParams>&& data) : m_data(WTFMove(data)) { }
+    explicit FetchBody(const FetchBodyConsumer& consumer) : m_consumer(consumer) { }
+    FetchBody() = default;
 
     void consume(FetchBodyOwner&, Ref<DeferredPromise>&&);
 
@@ -118,10 +114,7 @@
     const URLSearchParams& urlSearchParamsBody() const { return std::experimental::get<Ref<const URLSearchParams>>(m_data).get(); }
 
     std::experimental::variant<std::nullptr_t, Ref<const Blob>, Ref<FormData>, Ref<const ArrayBuffer>, Ref<const ArrayBufferView>, Ref<const URLSearchParams>, String> m_data { nullptr };
-    String m_contentType;
 
-    bool m_isEmpty { false };
-
     FetchBodyConsumer m_consumer { FetchBodyConsumer::Type::None };
     RefPtr<DeferredPromise> m_consumePromise;
 };

Modified: trunk/Source/WebCore/Modules/fetch/FetchBodyOwner.cpp (206736 => 206737)


--- trunk/Source/WebCore/Modules/fetch/FetchBodyOwner.cpp	2016-10-03 17:44:29 UTC (rev 206736)
+++ trunk/Source/WebCore/Modules/fetch/FetchBodyOwner.cpp	2016-10-03 17:57:27 UTC (rev 206737)
@@ -40,9 +40,10 @@
 
 namespace WebCore {
 
-FetchBodyOwner::FetchBodyOwner(ScriptExecutionContext& context, FetchBody&& body)
+FetchBodyOwner::FetchBodyOwner(ScriptExecutionContext& context, Optional<FetchBody>&& body, Ref<FetchHeaders>&& headers)
     : ActiveDOMObject(&context)
     , m_body(WTFMove(body))
+    , m_headers(WTFMove(headers))
 {
     suspendIfNeeded();
 }
@@ -49,7 +50,8 @@
 
 void FetchBodyOwner::stop()
 {
-    m_body.cleanConsumePromise();
+    if (m_body)
+        m_body->cleanConsumePromise();
 
     if (m_blobLoader) {
         bool isUniqueReference = hasOneRef();
@@ -75,7 +77,7 @@
 
 void FetchBodyOwner::arrayBuffer(Ref<DeferredPromise>&& promise)
 {
-    if (m_body.isEmpty()) {
+    if (isBodyNull()) {
         fulfillPromiseWithArrayBuffer(WTFMove(promise), nullptr, 0);
         return;
     }
@@ -84,13 +86,13 @@
         return;
     }
     m_isDisturbed = true;
-    m_body.arrayBuffer(*this, WTFMove(promise));
+    m_body->arrayBuffer(*this, WTFMove(promise));
 }
 
 void FetchBodyOwner::blob(Ref<DeferredPromise>&& promise)
 {
-    if (m_body.isEmpty()) {
-        promise->resolve(Blob::create(Vector<uint8_t>(), Blob::normalizedContentType(extractMIMETypeFromMediaType(m_body.contentType()))));
+    if (isBodyNull()) {
+        promise->resolve(Blob::create(Vector<uint8_t>(), Blob::normalizedContentType(extractMIMETypeFromMediaType(m_contentType))));
         return;
     }
     if (isDisturbedOrLocked()) {
@@ -98,9 +100,33 @@
         return;
     }
     m_isDisturbed = true;
-    m_body.blob(*this, WTFMove(promise));
+    m_body->blob(*this, WTFMove(promise), m_contentType);
 }
 
+void FetchBodyOwner::cloneBody(const FetchBodyOwner& owner)
+{
+    m_contentType = owner.m_contentType;
+    if (owner.isBodyNull())
+        return;
+    m_body = owner.m_body->clone();
+}
+
+void FetchBodyOwner::extractBody(ScriptExecutionContext& context, JSC::ExecState& state, JSC::JSValue value)
+{
+    m_body = FetchBody::extract(context, state, value, m_contentType);
+}
+
+void FetchBodyOwner::updateContentType()
+{
+    String contentType = m_headers->fastGet(HTTPHeaderName::ContentType);
+    if (!contentType.isNull()) {
+        m_contentType = WTFMove(contentType);
+        return;
+    }
+    if (!m_contentType.isNull())
+        m_headers->fastSet(HTTPHeaderName::ContentType, m_contentType);
+}
+
 void FetchBodyOwner::consumeOnceLoadingFinished(FetchBodyConsumer::Type type, Ref<DeferredPromise>&& promise)
 {
     if (isDisturbedOrLocked()) {
@@ -108,12 +134,12 @@
         return;
     }
     m_isDisturbed = true;
-    m_body.consumeOnceLoadingFinished(type, WTFMove(promise));
+    m_body->consumeOnceLoadingFinished(type, WTFMove(promise));
 }
 
 void FetchBodyOwner::formData(Ref<DeferredPromise>&& promise)
 {
-    if (m_body.isEmpty()) {
+    if (isBodyNull()) {
         promise->reject(0);
         return;
     }
@@ -122,12 +148,12 @@
         return;
     }
     m_isDisturbed = true;
-    m_body.formData(*this, WTFMove(promise));
+    m_body->formData(*this, WTFMove(promise));
 }
 
 void FetchBodyOwner::json(Ref<DeferredPromise>&& promise)
 {
-    if (m_body.isEmpty()) {
+    if (isBodyNull()) {
         promise->reject(SYNTAX_ERR);
         return;
     }
@@ -136,12 +162,12 @@
         return;
     }
     m_isDisturbed = true;
-    m_body.json(*this, WTFMove(promise));
+    m_body->json(*this, WTFMove(promise));
 }
 
 void FetchBodyOwner::text(Ref<DeferredPromise>&& promise)
 {
-    if (m_body.isEmpty()) {
+    if (isBodyNull()) {
         promise->resolve(String());
         return;
     }
@@ -150,7 +176,7 @@
         return;
     }
     m_isDisturbed = true;
-    m_body.text(*this, WTFMove(promise));
+    m_body->text(*this, WTFMove(promise));
 }
 
 void FetchBodyOwner::loadBlob(const Blob& blob, FetchBodyConsumer* consumer)
@@ -158,9 +184,10 @@
     // Can only be called once for a body instance.
     ASSERT(isDisturbed());
     ASSERT(!m_blobLoader);
+    ASSERT(!isBodyNull());
 
     if (!scriptExecutionContext()) {
-        m_body.loadingFailed();
+        m_body->loadingFailed();
         return;
     }
 
@@ -169,7 +196,7 @@
 
     m_blobLoader->loader->start(*scriptExecutionContext(), blob);
     if (!m_blobLoader->loader->isStarted()) {
-        m_body.loadingFailed();
+        m_body->loadingFailed();
         m_blobLoader = Nullopt;
         return;
     }
@@ -186,6 +213,7 @@
 
 void FetchBodyOwner::blobLoadingSucceeded()
 {
+    ASSERT(!isBodyNull());
 #if ENABLE(READABLE_STREAM_API)
     if (m_readableStreamSource) {
         m_readableStreamSource->close();
@@ -192,12 +220,13 @@
         m_readableStreamSource = nullptr;
     }
 #endif
-    m_body.loadingSucceeded();
+    m_body->loadingSucceeded();
     finishBlobLoading();
 }
 
 void FetchBodyOwner::blobLoadingFailed()
 {
+    ASSERT(!isBodyNull());
 #if ENABLE(READABLE_STREAM_API)
     if (m_readableStreamSource) {
         if (!m_readableStreamSource->isCancelling())
@@ -205,7 +234,7 @@
         m_readableStreamSource = nullptr;
     } else
 #endif
-        m_body.loadingFailed();
+        m_body->loadingFailed();
 
     finishBlobLoading();
 }

Modified: trunk/Source/WebCore/Modules/fetch/FetchBodyOwner.h (206736 => 206737)


--- trunk/Source/WebCore/Modules/fetch/FetchBodyOwner.h	2016-10-03 17:44:29 UTC (rev 206736)
+++ trunk/Source/WebCore/Modules/fetch/FetchBodyOwner.h	2016-10-03 17:57:27 UTC (rev 206737)
@@ -33,6 +33,7 @@
 
 #include "ActiveDOMObject.h"
 #include "FetchBody.h"
+#include "FetchHeaders.h"
 #include "FetchLoader.h"
 #include "FetchLoaderClient.h"
 #include "FetchResponseSource.h"
@@ -41,7 +42,7 @@
 
 class FetchBodyOwner : public RefCounted<FetchBodyOwner>, public ActiveDOMObject {
 public:
-    FetchBodyOwner(ScriptExecutionContext&, FetchBody&&);
+    FetchBodyOwner(ScriptExecutionContext&, Optional<FetchBody>&&, Ref<FetchHeaders>&&);
 
     // Exposed Body API
     bool isDisturbed() const { return m_isDisturbed; };
@@ -59,8 +60,13 @@
     bool isActive() const { return !!m_blobLoader; }
 
 protected:
-    const FetchBody& body() const { return m_body; }
-    FetchBody& body() { return m_body; }
+    const FetchBody& body() const { return *m_body; }
+    FetchBody& body() { return *m_body; }
+    bool isBodyNull() const { return !m_body; }
+    void cloneBody(const FetchBodyOwner&);
+
+    void extractBody(ScriptExecutionContext&, JSC::ExecState&, JSC::JSValue);
+    void updateContentType();
     void consumeOnceLoadingFinished(FetchBodyConsumer::Type, Ref<DeferredPromise>&&);
 
     // ActiveDOMObject API
@@ -89,11 +95,13 @@
     };
 
 protected:
-    FetchBody m_body;
+    Optional<FetchBody> m_body;
+    String m_contentType;
     bool m_isDisturbed { false };
 #if ENABLE(READABLE_STREAM_API)
     RefPtr<FetchResponseSource> m_readableStreamSource;
 #endif
+    Ref<FetchHeaders> m_headers;
 
 private:
     Optional<BlobLoader> m_blobLoader;

Modified: trunk/Source/WebCore/Modules/fetch/FetchRequest.cpp (206736 => 206737)


--- trunk/Source/WebCore/Modules/fetch/FetchRequest.cpp	2016-10-03 17:44:29 UTC (rev 206736)
+++ trunk/Source/WebCore/Modules/fetch/FetchRequest.cpp	2016-10-03 17:57:27 UTC (rev 206737)
@@ -261,23 +261,21 @@
         }
 
         ASSERT(scriptExecutionContext());
-        m_body = FetchBody::extract(*scriptExecutionContext(), execState, body);
-        if (m_body.isEmpty()) {
+        extractBody(*scriptExecutionContext(), execState, body);
+        if (isBodyNull()) {
             ec = TypeError;
             return;
         }
-    }
-    else if (request && !request->m_body.isEmpty()) {
+    } else if (request && !request->isBodyNull()) {
         if (!methodCanHaveBody(m_internalRequest)) {
             ec = TypeError;
             return;
         }
 
-        m_body = FetchBody::extractFromBody(&request->m_body);
+        m_body = WTFMove(request->m_body);
         request->setDisturbed();
     }
-
-    m_body.updateContentType(m_headers);
+    updateContentType();
 }
 
 String FetchRequest::referrer() const
@@ -302,8 +300,10 @@
 
     ResourceRequest request = m_internalRequest.request;
     request.setHTTPHeaderFields(m_headers->internalHeaders());
-    request.setHTTPBody(body().bodyForInternalRequest(*scriptExecutionContext()));
 
+    if (!isBodyNull())
+        request.setHTTPBody(body().bodyForInternalRequest(*scriptExecutionContext()));
+
     return request;
 }
 
@@ -314,7 +314,9 @@
         return nullptr;
     }
 
-    return adoptRef(*new FetchRequest(context, m_body.clone(), FetchHeaders::create(m_headers.get()), FetchRequest::InternalRequest(m_internalRequest)));
+    auto clone = adoptRef(*new FetchRequest(context, Nullopt, FetchHeaders::create(m_headers.get()), FetchRequest::InternalRequest(m_internalRequest)));
+    clone->cloneBody(*this);
+    return WTFMove(clone);
 }
 
 const char* FetchRequest::activeDOMObjectName() const

Modified: trunk/Source/WebCore/Modules/fetch/FetchRequest.h (206736 => 206737)


--- trunk/Source/WebCore/Modules/fetch/FetchRequest.h	2016-10-03 17:44:29 UTC (rev 206736)
+++ trunk/Source/WebCore/Modules/fetch/FetchRequest.h	2016-10-03 17:57:27 UTC (rev 206737)
@@ -32,7 +32,6 @@
 #if ENABLE(FETCH_API)
 
 #include "FetchBodyOwner.h"
-#include "FetchHeaders.h"
 #include "FetchOptions.h"
 #include "ResourceRequest.h"
 
@@ -45,7 +44,7 @@
 
 class FetchRequest final : public FetchBodyOwner {
 public:
-    static Ref<FetchRequest> create(ScriptExecutionContext& context) { return adoptRef(*new FetchRequest(context, { }, FetchHeaders::create(FetchHeaders::Guard::Request), { })); }
+    static Ref<FetchRequest> create(ScriptExecutionContext& context) { return adoptRef(*new FetchRequest(context, Nullopt, FetchHeaders::create(FetchHeaders::Guard::Request), { })); }
 
     FetchHeaders* initializeWith(FetchRequest&, const Dictionary&, ExceptionCode&);
     FetchHeaders* initializeWith(const String&, const Dictionary&, ExceptionCode&);
@@ -95,7 +94,7 @@
     const String& internalRequestReferrer() const { return m_internalRequest.referrer; }
 
 private:
-    FetchRequest(ScriptExecutionContext&, FetchBody&&, Ref<FetchHeaders>&&, InternalRequest&&);
+    FetchRequest(ScriptExecutionContext&, Optional<FetchBody>&&, Ref<FetchHeaders>&&, InternalRequest&&);
 
     void initializeOptions(const Dictionary&, ExceptionCode&);
 
@@ -103,14 +102,12 @@
     const char* activeDOMObjectName() const final;
     bool canSuspendForDocumentSuspension() const final;
 
-    Ref<FetchHeaders> m_headers;
     InternalRequest m_internalRequest;
     mutable String m_requestURL;
 };
 
-inline FetchRequest::FetchRequest(ScriptExecutionContext& context, FetchBody&& body, Ref<FetchHeaders>&& headers, InternalRequest&& internalRequest)
-    : FetchBodyOwner(context, WTFMove(body))
-    , m_headers(WTFMove(headers))
+inline FetchRequest::FetchRequest(ScriptExecutionContext& context, Optional<FetchBody>&& body, Ref<FetchHeaders>&& headers, InternalRequest&& internalRequest)
+    : FetchBodyOwner(context, WTFMove(body), WTFMove(headers))
     , m_internalRequest(WTFMove(internalRequest))
 {
 }

Modified: trunk/Source/WebCore/Modules/fetch/FetchResponse.cpp (206736 => 206737)


--- trunk/Source/WebCore/Modules/fetch/FetchResponse.cpp	2016-10-03 17:44:29 UTC (rev 206736)
+++ trunk/Source/WebCore/Modules/fetch/FetchResponse.cpp	2016-10-03 17:57:27 UTC (rev 206737)
@@ -83,14 +83,13 @@
 void FetchResponse::initializeWith(JSC::ExecState& execState, JSC::JSValue body)
 {
     ASSERT(scriptExecutionContext());
-    m_body = FetchBody::extract(*scriptExecutionContext(), execState, body);
-    m_body.updateContentType(m_headers);
+    extractBody(*scriptExecutionContext(), execState, body);
+    updateContentType();
 }
 
-FetchResponse::FetchResponse(ScriptExecutionContext& context, FetchBody&& body, Ref<FetchHeaders>&& headers, ResourceResponse&& response)
-    : FetchBodyOwner(context, WTFMove(body))
+FetchResponse::FetchResponse(ScriptExecutionContext& context, Optional<FetchBody>&& body, Ref<FetchHeaders>&& headers, ResourceResponse&& response)
+    : FetchBodyOwner(context, WTFMove(body), WTFMove(headers))
     , m_response(WTFMove(response))
-    , m_headers(WTFMove(headers))
 {
 }
 
@@ -98,12 +97,15 @@
 {
     ASSERT(scriptExecutionContext());
     ASSERT(!isDisturbedOrLocked());
-    return adoptRef(*new FetchResponse(*scriptExecutionContext(), m_body.clone(), FetchHeaders::create(headers()), ResourceResponse(m_response)));
+
+    auto clone = adoptRef(*new FetchResponse(*scriptExecutionContext(), Nullopt, FetchHeaders::create(headers()), ResourceResponse(m_response)));
+    clone->cloneBody(*this);
+    return clone;
 }
 
 void FetchResponse::fetch(ScriptExecutionContext& context, FetchRequest& request, FetchPromise&& promise)
 {
-    auto response = adoptRef(*new FetchResponse(context, { }, FetchHeaders::create(FetchHeaders::Guard::Immutable), { }));
+    auto response = adoptRef(*new FetchResponse(context, FetchBody::loadingBody(), FetchHeaders::create(FetchHeaders::Guard::Immutable), { }));
 
     // Setting pending activity until BodyLoader didFail or didSucceed callback is called.
     response->setPendingActivity(response.ptr());
@@ -123,10 +125,10 @@
 void FetchResponse::BodyLoader::didSucceed()
 {
     ASSERT(m_response.hasPendingActivity());
-    m_response.m_body.loadingSucceeded();
+    m_response.m_body->loadingSucceeded();
 
 #if ENABLE(READABLE_STREAM_API)
-    if (m_response.m_readableStreamSource && m_response.body().isEmpty()) {
+    if (m_response.m_readableStreamSource && !m_response.body().consumer().hasData()) {
         // We only close the stream if FetchBody already enqueued all data.
         // Otherwise, FetchBody will close the stream after enqueuing the data.
         m_response.m_readableStreamSource->close();
@@ -174,7 +176,6 @@
 
     m_response.m_response = resourceResponse;
     m_response.m_headers->filterAndFill(resourceResponse.httpHeaderFields(), FetchHeaders::Guard::Response);
-    m_response.m_body.setContentType(m_response.m_headers->fastGet(HTTPHeaderName::ContentType));
 
     std::exchange(m_promise, Nullopt)->resolve(m_response);
 }
@@ -194,7 +195,7 @@
 
 bool FetchResponse::BodyLoader::start(ScriptExecutionContext& context, const FetchRequest& request)
 {
-    m_loader = std::make_unique<FetchLoader>(*this, &m_response.m_body.consumer());
+    m_loader = std::make_unique<FetchLoader>(*this, &m_response.m_body->consumer());
     m_loader->start(context, request);
     return m_loader->isStarted();
 }
@@ -278,7 +279,7 @@
     ASSERT(!m_readableStreamSource);
     ASSERT(!m_isDisturbed);
 
-    if (body().isEmpty() && !isLoading())
+    if (isBodyNull())
         return nullptr;
 
     m_readableStreamSource = adoptRef(*new FetchResponseSource(*this));

Modified: trunk/Source/WebCore/Modules/fetch/FetchResponse.h (206736 => 206737)


--- trunk/Source/WebCore/Modules/fetch/FetchResponse.h	2016-10-03 17:44:29 UTC (rev 206736)
+++ trunk/Source/WebCore/Modules/fetch/FetchResponse.h	2016-10-03 17:57:27 UTC (rev 206737)
@@ -31,7 +31,6 @@
 #if ENABLE(FETCH_API)
 
 #include "FetchBodyOwner.h"
-#include "FetchHeaders.h"
 #include "ResourceResponse.h"
 #include <runtime/TypedArrays.h>
 
@@ -53,7 +52,7 @@
 public:
     using Type = ResourceResponse::Type;
 
-    static Ref<FetchResponse> create(ScriptExecutionContext& context) { return adoptRef(*new FetchResponse(context, { }, FetchHeaders::create(FetchHeaders::Guard::Response), ResourceResponse())); }
+    static Ref<FetchResponse> create(ScriptExecutionContext& context) { return adoptRef(*new FetchResponse(context, Nullopt, FetchHeaders::create(FetchHeaders::Guard::Response), ResourceResponse())); }
     static Ref<FetchResponse> error(ScriptExecutionContext&);
     static RefPtr<FetchResponse> redirect(ScriptExecutionContext&, const String&, int, ExceptionCode&);
 
@@ -88,7 +87,7 @@
     bool isLoading() const { return !!m_bodyLoader; }
 
 private:
-    FetchResponse(ScriptExecutionContext&, FetchBody&&, Ref<FetchHeaders>&&, ResourceResponse&&);
+    FetchResponse(ScriptExecutionContext&, Optional<FetchBody>&&, Ref<FetchHeaders>&&, ResourceResponse&&);
 
     static void startFetching(ScriptExecutionContext&, const FetchRequest&, FetchPromise&&);
 
@@ -121,7 +120,6 @@
     };
 
     ResourceResponse m_response;
-    Ref<FetchHeaders> m_headers;
     Optional<BodyLoader> m_bodyLoader;
     mutable String m_responseURL;
 
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