bf3516e81e
In modern C++, static constexpr member variables are automatically inline (aka weak) so the template trick is not needed. This also avoid duplication and reduces the amount of parsed code. No impact on generated binary (actually: smaller debuginfo, close to identical binary). Differential Revision: https://phabricator.services.mozilla.com/D247825
109 lines
3.5 KiB
C++
109 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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_dom_BlobImpl_h
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#define mozilla_dom_BlobImpl_h
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#include "nsISupports.h"
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#include "nsString.h"
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#define BLOBIMPL_IID \
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{0xbccb3275, 0x6778, 0x4ac5, {0xaf, 0x03, 0x90, 0xed, 0x37, 0xad, 0xdf, 0x5d}}
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class nsIInputStream;
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namespace mozilla {
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class ErrorResult;
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namespace dom {
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class SystemCallerGuarantee;
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template <typename T>
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class Optional;
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// This is the abstract class for any File backend. It must be nsISupports
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// because this class must be ref-counted and it has to work with IPC.
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class BlobImpl : public nsISupports {
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public:
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NS_INLINE_DECL_STATIC_IID(BLOBIMPL_IID)
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NS_DECL_THREADSAFE_ISUPPORTS
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BlobImpl() = default;
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virtual void GetName(nsAString& aName) const = 0;
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virtual void GetDOMPath(nsAString& aName) const = 0;
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virtual void SetDOMPath(const nsAString& aName) = 0;
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virtual int64_t GetLastModified(ErrorResult& aRv) = 0;
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virtual void GetMozFullPath(nsAString& aName,
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SystemCallerGuarantee /* unused */,
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ErrorResult& aRv) = 0;
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virtual void GetMozFullPathInternal(nsAString& aFileName,
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ErrorResult& aRv) = 0;
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virtual uint64_t GetSize(ErrorResult& aRv) = 0;
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virtual void GetType(nsAString& aType) = 0;
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virtual void GetBlobImplType(nsAString& aBlobImplType) const = 0;
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virtual size_t GetAllocationSize() const = 0;
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virtual size_t GetAllocationSize(
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FallibleTArray<BlobImpl*>& aVisitedBlobImpls) const = 0;
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/**
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* An effectively-unique serial number identifying this instance of FileImpl.
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*
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* Implementations should obtain a serial number from
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* FileImplBase::NextSerialNumber().
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*/
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virtual uint64_t GetSerialNumber() const = 0;
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already_AddRefed<BlobImpl> Slice(const Optional<int64_t>& aStart,
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const Optional<int64_t>& aEnd,
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const nsAString& aContentType,
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ErrorResult& aRv);
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virtual already_AddRefed<BlobImpl> CreateSlice(uint64_t aStart,
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uint64_t aLength,
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const nsAString& aContentType,
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ErrorResult& aRv) const = 0;
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virtual const nsTArray<RefPtr<BlobImpl>>* GetSubBlobImpls() const = 0;
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virtual void CreateInputStream(nsIInputStream** aStream,
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ErrorResult& aRv) const = 0;
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virtual int64_t GetFileId() const = 0;
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nsresult GetSendInfo(nsIInputStream** aBody, uint64_t* aContentLength,
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nsACString& aContentType, nsACString& aCharset);
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virtual void SetLazyData(const nsAString& aName,
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const nsAString& aContentType, uint64_t aLength,
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int64_t aLastModifiedDate) = 0;
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virtual bool IsMemoryFile() const = 0;
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virtual bool IsFile() const = 0;
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// Returns true if the BlobImpl is backed by an nsIFile and the underlying
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// file is a directory.
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virtual bool IsDirectory() const { return false; }
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protected:
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virtual ~BlobImpl() = default;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_BlobImpl_h
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