gecko-dev/dom/jsurl/nsJSProtocolHandler.h
Chris Peterson 2d4ca059e8 Bug 1691889 - Replace MOZ_MUST_USE with [[nodiscard]] in dom/. r=peterv
The MOZ_MUST_USE macro is defined as clang's and gcc's nonstandard __attribute__((warn_unused_result)). Now that we compile as C++17 by default (bug 1560664), we can replace MOZ_MUST_USE with C++17's standard [[nodiscard]] attribute.

The [[nodiscard]] attribute must precede a function declaration's declaration specifiers (like static, extern, inline, or virtual). The __attribute__((warn_unused_result)) attribute does not have this order restriction.

Differential Revision: https://phabricator.services.mozilla.com/D107355
2021-03-10 08:19:25 +00:00

130 lines
3.9 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsJSProtocolHandler_h___
#define nsJSProtocolHandler_h___
#include "mozilla/Attributes.h"
#include "nsIProtocolHandler.h"
#include "nsIURI.h"
#include "nsISerializable.h"
#include "nsIClassInfo.h"
#include "nsSimpleURI.h"
#include "nsINestedURI.h"
#define NS_JSPROTOCOLHANDLER_CID \
{ /* bfc310d2-38a0-11d3-8cd3-0060b0fc14a3 */ \
0xbfc310d2, 0x38a0, 0x11d3, { \
0x8c, 0xd3, 0x00, 0x60, 0xb0, 0xfc, 0x14, 0xa3 \
} \
}
#define NS_JSURI_CID \
{ /* 58f089ee-512a-42d2-a935-d0c874128930 */ \
0x58f089ee, 0x512a, 0x42d2, { \
0xa9, 0x35, 0xd0, 0xc8, 0x74, 0x12, 0x89, 0x30 \
} \
}
#define NS_JSURIMUTATOR_CID \
{ /* 574ce83e-fe9f-4095-b85c-7909abbf7c37 */ \
0x574ce83e, 0xfe9f, 0x4095, { \
0xb8, 0x5c, 0x79, 0x09, 0xab, 0xbf, 0x7c, 0x37 \
} \
}
#define NS_JSPROTOCOLHANDLER_CONTRACTID \
NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX "javascript"
class nsJSProtocolHandler : public nsIProtocolHandler {
public:
NS_DECL_ISUPPORTS
// nsIProtocolHandler methods:
NS_DECL_NSIPROTOCOLHANDLER
// nsJSProtocolHandler methods:
nsJSProtocolHandler();
static nsresult CreateNewURI(const nsACString& aSpec, const char* aCharset,
nsIURI* aBaseURI, nsIURI** result);
protected:
virtual ~nsJSProtocolHandler();
static nsresult EnsureUTF8Spec(const nsCString& aSpec, const char* aCharset,
nsACString& aUTF8Spec);
};
class nsJSURI final : public mozilla::net::nsSimpleURI {
public:
using mozilla::net::nsSimpleURI::Read;
using mozilla::net::nsSimpleURI::Write;
nsIURI* GetBaseURI() const { return mBaseURI; }
NS_DECL_ISUPPORTS_INHERITED
// nsIURI overrides
virtual mozilla::net::nsSimpleURI* StartClone(
RefHandlingEnum refHandlingMode, const nsACString& newRef) override;
NS_IMETHOD Mutate(nsIURIMutator** _retval) override;
NS_IMETHOD_(void) Serialize(mozilla::ipc::URIParams& aParams) override;
// nsISerializable overrides
NS_IMETHOD Read(nsIObjectInputStream* aStream) override;
NS_IMETHOD Write(nsIObjectOutputStream* aStream) override;
protected:
nsJSURI() = default;
explicit nsJSURI(nsIURI* aBaseURI) : mBaseURI(aBaseURI) {}
virtual ~nsJSURI() = default;
virtual nsresult EqualsInternal(nsIURI* other,
RefHandlingEnum refHandlingMode,
bool* result) override;
bool Deserialize(const mozilla::ipc::URIParams&);
nsresult ReadPrivate(nsIObjectInputStream* aStream);
private:
nsCOMPtr<nsIURI> mBaseURI;
public:
class Mutator final : public nsIURIMutator,
public BaseURIMutator<nsJSURI>,
public nsISerializable,
public nsIJSURIMutator {
NS_DECL_ISUPPORTS
NS_FORWARD_SAFE_NSIURISETTERS_RET(mURI)
NS_DEFINE_NSIMUTATOR_COMMON
NS_IMETHOD
Write(nsIObjectOutputStream* aOutputStream) override {
return NS_ERROR_NOT_IMPLEMENTED;
}
[[nodiscard]] NS_IMETHOD Read(nsIObjectInputStream* aStream) override {
return InitFromInputStream(aStream);
}
[[nodiscard]] NS_IMETHOD SetBase(nsIURI* aBaseURI) override {
mURI = new nsJSURI(aBaseURI);
return NS_OK;
}
explicit Mutator() = default;
private:
virtual ~Mutator() = default;
friend class nsJSURI;
};
friend BaseURIMutator<nsJSURI>;
};
#endif /* nsJSProtocolHandler_h___ */