[ES6 Modules] Introduce ModuleScriptFetchRequest

third_party/WebKit/Source/core/loader/modulescript/ModuleScriptFetchRequest.h

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef ModuleScriptFetchRequest_h
+#define ModuleScriptFetchRequest_h
+
+#include "platform/loader/fetch/ResourceLoaderOptions.h"
+#include "platform/weborigin/KURL.h"
+#include "platform/weborigin/Referrer.h"
+#include "public/platform/WebURLRequest.h"
+#include "wtf/text/WTFString.h"
+
+namespace blink {
+
+// A ModuleScriptFetchRequest is a "parameter object" for
+// Modulator::fetch{,New}SingleModule to avoid the methods having too many
+// arguments.
+// In terms of spec, a ModuleScriptFetchRequest carries most of the arguments
+// for "fetch a single module script" algorithm:
+// https://html.spec.whatwg.org/#fetch-a-single-module-script
+class ModuleScriptFetchRequest final {
+  STACK_ALLOCATED();
+
+ public:
+  ModuleScriptFetchRequest(const KURL& url,
+                           const String& nonce,
+                           ParserDisposition parserState,
+                           WebURLRequest::FetchCredentialsMode credentialsMode)
+      : ModuleScriptFetchRequest(url,
+                                 nonce,
+                                 parserState,
+                                 credentialsMode,
+                                 nullAtom) {}

[yhirano, 2017/01/30 18:04:28]

Can you use Referrer::noReferrer() instead?

[kouhei (in TOK), 2017/01/30 18:08:24]

Done.

+  ~ModuleScriptFetchRequest() = default;
+
+  const KURL& url() const { return m_url; }
+  const String& nonce() const { return m_nonce; }
+  const ParserDisposition& parserState() const { return m_parserState; }
+  WebURLRequest::FetchCredentialsMode credentialsMode() const {
+    return m_credentialsMode;
+  }
+  const AtomicString& referrer() const { return m_referrer; }
+
+ private:
+  // Referrer is set only for internal module script fetch algorithms triggered
+  // from ModuleTreeLinker to fetch descendant module scripts.
+  friend class ModuleTreeLinker;
+  ModuleScriptFetchRequest(const KURL& url,
+                           const String& nonce,
+                           ParserDisposition parserState,
+                           WebURLRequest::FetchCredentialsMode credentialsMode,
+                           const String& referrer)
+      : m_url(url),
+        m_nonce(nonce),
+        m_parserState(parserState),
+        m_credentialsMode(credentialsMode),
+        m_referrer(referrer) {}
+
+  const KURL m_url;
+  const String m_nonce;
+  const ParserDisposition m_parserState;
+  const WebURLRequest::FetchCredentialsMode m_credentialsMode;
+  const AtomicString m_referrer;
+};
+
+}  // namespace blink
+
+#endif