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31ceef48aa
This avoid intermediate object tree for "JSON to principal" case. Differential Revision: https://phabricator.services.mozilla.com/D192146
92 lines
2.4 KiB
C++
92 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_NullPrincipalJSONHandler_h
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#define mozilla_NullPrincipalJSONHandler_h
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#include <stddef.h> // size_t
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#include <stdint.h> // uint32_t
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#include "js/TypeDecls.h" // JS::Latin1Char
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#include "mozilla/AlreadyAddRefed.h" // already_AddRefed
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#include "mozilla/Assertions.h" // MOZ_ASSERT_UNREACHABLE
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#include "mozilla/RefPtr.h" // RefPtr
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#include "nsCOMPtr.h" // nsCOMPtr
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#include "nsDebug.h" // NS_WARNING
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#include "nsIURI.h" // nsIURI
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#include "NullPrincipal.h"
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#include "OriginAttributes.h"
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#include "SharedJSONHandler.h"
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namespace mozilla {
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// JSON parse handler for an inner object for NullPrincipal.
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// Used by PrincipalJSONHandler or SubsumedPrincipalJSONHandler.
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class NullPrincipalJSONHandler : public PrincipalJSONHandlerShared {
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enum class State {
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Init,
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// After the inner object's '{'.
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StartObject,
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// After the property key for eSpec.
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SpecKey,
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// After the property key for eSuffix.
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SuffixKey,
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// After the property value for eSpec or eSuffix.
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AfterPropertyValue,
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// After the inner object's '}'.
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EndObject,
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Error,
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};
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public:
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NullPrincipalJSONHandler() = default;
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virtual ~NullPrincipalJSONHandler() = default;
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virtual bool startObject() override;
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using PrincipalJSONHandlerShared::propertyName;
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virtual bool propertyName(const JS::Latin1Char* name, size_t length) override;
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virtual bool endObject() override;
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virtual bool startArray() override {
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NS_WARNING("Unexpected array value");
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mState = State::Error;
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return false;
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}
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virtual bool endArray() override {
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NS_WARNING("Unexpected array value");
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mState = State::Error;
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return false;
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}
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using PrincipalJSONHandlerShared::stringValue;
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virtual bool stringValue(const JS::Latin1Char* str, size_t length) override;
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bool HasAccepted() const { return mState == State::EndObject; }
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protected:
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virtual void SetErrorState() override { mState = State::Error; }
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private:
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State mState = State::Init;
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nsCOMPtr<nsIURI> mUri;
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OriginAttributes mAttrs;
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};
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} // namespace mozilla
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#endif // mozilla_NullPrincipalJSONHandler_h
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