mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
bd52bd3f4e
Most of this patch (with the exception of dom/bindings/Codegen.py) was
generated by the following bash script:
#!/bin/bash
function convert() {
echo "Converting $1 to $2..."
find . ! -wholename "*nsprpub*" \
! -wholename "*security/nss*" \
! -wholename "*/.hg*" \
! -wholename "*/.git*" \
! -wholename "obj-*" \
-type f \
\( -iname "*.cpp" \
-o -iname "*.h" \
-o -iname "*.cc" \
-o -iname "*.idl" \
-o -iname "*.ipdl" \
-o -iname "*.ipdlh" \
-o -iname "*.mm" \) | \
xargs -n 1 sed -i -e "s/\b$1\b/$2/g"
}
convert MOZ_DELETE '= delete'
282 lines
12 KiB
C++
282 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* 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/. */
|
|
|
|
/* Macros to emulate C++11 typed enums and enum classes. */
|
|
|
|
#ifndef mozilla_TypedEnum_h
|
|
#define mozilla_TypedEnum_h
|
|
|
|
#include "mozilla/TypedEnumInternal.h"
|
|
#include "mozilla/MacroArgs.h"
|
|
|
|
#if defined(__cplusplus)
|
|
|
|
/**
|
|
* MOZ_ENUM_TYPE specifies the underlying numeric type for an enum. It's
|
|
* specified by placing MOZ_ENUM_TYPE(type) immediately after the enum name in
|
|
* its declaration, and before the opening curly brace, like
|
|
*
|
|
* enum MyEnum MOZ_ENUM_TYPE(uint16_t)
|
|
* {
|
|
* A,
|
|
* B = 7,
|
|
* C
|
|
* };
|
|
*
|
|
* In supporting compilers, the macro will expand to ": uint16_t". The
|
|
* compiler will allocate exactly two bytes for MyEnum and will require all
|
|
* enumerators to have values between 0 and 65535. (Thus specifying "B =
|
|
* 100000" instead of "B = 7" would fail to compile.) In old compilers the
|
|
* macro expands to the empty string, and the underlying type is generally
|
|
* undefined.
|
|
*/
|
|
#ifdef MOZ_HAVE_CXX11_ENUM_TYPE
|
|
# define MOZ_ENUM_TYPE(type) : type
|
|
#else
|
|
# define MOZ_ENUM_TYPE(type) /* no support */
|
|
#endif
|
|
|
|
/**
|
|
* MOZ_BEGIN_ENUM_CLASS and MOZ_END_ENUM_CLASS provide access to the
|
|
* strongly-typed enumeration feature of C++11 ("enum class"). If supported
|
|
* by the compiler, an enum defined using these macros will not be implicitly
|
|
* converted to any other type, and its enumerators will be scoped using the
|
|
* enumeration name. Place MOZ_BEGIN_ENUM_CLASS(EnumName [, type]) in place of
|
|
* "enum EnumName {", and MOZ_END_ENUM_CLASS(EnumName) in place of the closing
|
|
* "};". For example,
|
|
*
|
|
* MOZ_BEGIN_ENUM_CLASS(Enum, int32_t)
|
|
* A,
|
|
* B = 6
|
|
* MOZ_END_ENUM_CLASS(Enum)
|
|
*
|
|
* This will make "Enum::A" and "Enum::B" appear in the global scope, but "A"
|
|
* and "B" will not. In compilers that support C++11 strongly-typed
|
|
* enumerations, implicit conversions of Enum values to numeric types will
|
|
* fail. In other compilers, Enum itself will actually be defined as a class,
|
|
* and some implicit conversions will fail while others will succeed.
|
|
*
|
|
* The optional type argument specifies the underlying type for the enum where
|
|
* supported, as with MOZ_ENUM_TYPE(). As with MOZ_ENUM_TYPE(), it will do
|
|
* nothing on compilers that do not support it.
|
|
*
|
|
* MOZ_{BEGIN,END}_ENUM_CLASS doesn't work for defining enum classes nested
|
|
* inside classes. To define an enum class nested inside another class, use
|
|
* MOZ_{BEGIN,END}_NESTED_ENUM_CLASS, and place a MOZ_FINISH_NESTED_ENUM_CLASS
|
|
* in namespace scope to handle bits that can only be implemented with
|
|
* namespace-scoped code. For example:
|
|
*
|
|
* class FooBar
|
|
* {
|
|
* MOZ_BEGIN_NESTED_ENUM_CLASS(Enum, int32_t)
|
|
* A,
|
|
* B = 6
|
|
* MOZ_END_NESTED_ENUM_CLASS(Enum)
|
|
* };
|
|
*
|
|
* MOZ_FINISH_NESTED_ENUM_CLASS(FooBar::Enum)
|
|
*/
|
|
#if defined(MOZ_HAVE_CXX11_STRONG_ENUMS)
|
|
/*
|
|
* All compilers that support strong enums also support an explicit
|
|
* underlying type, so no extra check is needed.
|
|
*/
|
|
|
|
/* Single-argument form. */
|
|
# define MOZ_BEGIN_NESTED_ENUM_CLASS_HELPER1(Name) \
|
|
enum class Name {
|
|
/* Two-argument form. */
|
|
# define MOZ_BEGIN_NESTED_ENUM_CLASS_HELPER2(Name, type) \
|
|
enum class Name : type {
|
|
# define MOZ_END_NESTED_ENUM_CLASS(Name) \
|
|
};
|
|
# define MOZ_FINISH_NESTED_ENUM_CLASS(Name) /* nothing */
|
|
|
|
/*
|
|
* MOZ_ENUM_CLASS_ENUM_TYPE allows using enum classes
|
|
* as template parameter types. For that, we need integer types.
|
|
* In the present case where the compiler supports strong enums,
|
|
* these are already integer types so there is nothing more to do.
|
|
*/
|
|
# define MOZ_ENUM_CLASS_ENUM_TYPE(Name) Name
|
|
/*
|
|
* See the comment below about MOZ_TEMPLATE_ENUM_CLASS_ENUM_TYPE.
|
|
*/
|
|
# define MOZ_TEMPLATE_ENUM_CLASS_ENUM_TYPE(Name) Name
|
|
#else
|
|
/**
|
|
* We need Name to both name a type, and scope the provided enumerator
|
|
* names. Namespaces and classes both provide scoping, but namespaces
|
|
* aren't types, so we need to use a class that wraps the enum values. We
|
|
* have an implicit conversion from the inner enum type to the class, so
|
|
* statements like
|
|
*
|
|
* Enum x = Enum::A;
|
|
*
|
|
* will still work. We need to define an implicit conversion from the class
|
|
* to the inner enum as well, so that (for instance) switch statements will
|
|
* work. This means that the class can be implicitly converted to a numeric
|
|
* value as well via the enum type, since C++ allows an implicit
|
|
* user-defined conversion followed by a standard conversion to still be
|
|
* implicit.
|
|
*
|
|
* We have an explicit constructor from int defined, so that casts like
|
|
* (Enum)7 will still work. We also have a zero-argument constructor with
|
|
* no arguments, so declaration without initialization (like "Enum foo;")
|
|
* will work.
|
|
*
|
|
* Additionally, we'll delete as many operators as possible for the inner
|
|
* enum type, so statements like this will still fail:
|
|
*
|
|
* f(5 + Enum::B); // deleted operator+
|
|
*
|
|
* But we can't prevent things like this, because C++ doesn't allow
|
|
* overriding conversions or assignment operators for enums:
|
|
*
|
|
* int x = Enum::A;
|
|
* int f()
|
|
* {
|
|
* return Enum::A;
|
|
* }
|
|
*/
|
|
|
|
/* Single-argument form. */
|
|
# define MOZ_BEGIN_NESTED_ENUM_CLASS_HELPER1(Name) \
|
|
class Name \
|
|
{ \
|
|
public: \
|
|
enum Enum \
|
|
{
|
|
/* Two-argument form. */
|
|
# define MOZ_BEGIN_NESTED_ENUM_CLASS_HELPER2(Name, type) \
|
|
class Name \
|
|
{ \
|
|
public: \
|
|
enum Enum MOZ_ENUM_TYPE(type) \
|
|
{
|
|
# define MOZ_END_NESTED_ENUM_CLASS(Name) \
|
|
}; \
|
|
Name() {} \
|
|
MOZ_CONSTEXPR Name(Enum aEnum) : mEnum(aEnum) {} \
|
|
template<typename Other> \
|
|
explicit MOZ_CONSTEXPR Name(Other num) : mEnum((Enum)num) {} \
|
|
MOZ_CONSTEXPR operator Enum() const { return mEnum; } \
|
|
explicit MOZ_CONSTEXPR Name(const mozilla::CastableTypedEnumResult<Name>& aOther) \
|
|
: mEnum(aOther.get()) \
|
|
{} \
|
|
private: \
|
|
Enum mEnum; \
|
|
};
|
|
# define MOZ_FINISH_NESTED_ENUM_CLASS(Name) \
|
|
inline int operator+(const int&, const Name::Enum&) = delete; \
|
|
inline int operator+(const Name::Enum&, const int&) = delete; \
|
|
inline int operator-(const int&, const Name::Enum&) = delete; \
|
|
inline int operator-(const Name::Enum&, const int&) = delete; \
|
|
inline int operator*(const int&, const Name::Enum&) = delete; \
|
|
inline int operator*(const Name::Enum&, const int&) = delete; \
|
|
inline int operator/(const int&, const Name::Enum&) = delete; \
|
|
inline int operator/(const Name::Enum&, const int&) = delete; \
|
|
inline int operator%(const int&, const Name::Enum&) = delete; \
|
|
inline int operator%(const Name::Enum&, const int&) = delete; \
|
|
inline int operator+(const Name::Enum&) = delete; \
|
|
inline int operator-(const Name::Enum&) = delete; \
|
|
inline int& operator++(Name::Enum&) = delete; \
|
|
inline int operator++(Name::Enum&, int) = delete; \
|
|
inline int& operator--(Name::Enum&) = delete; \
|
|
inline int operator--(Name::Enum&, int) = delete; \
|
|
inline bool operator==(const int&, const Name::Enum&) = delete; \
|
|
inline bool operator==(const Name::Enum&, const int&) = delete; \
|
|
inline bool operator!=(const int&, const Name::Enum&) = delete; \
|
|
inline bool operator!=(const Name::Enum&, const int&) = delete; \
|
|
inline bool operator>(const int&, const Name::Enum&) = delete; \
|
|
inline bool operator>(const Name::Enum&, const int&) = delete; \
|
|
inline bool operator<(const int&, const Name::Enum&) = delete; \
|
|
inline bool operator<(const Name::Enum&, const int&) = delete; \
|
|
inline bool operator>=(const int&, const Name::Enum&) = delete; \
|
|
inline bool operator>=(const Name::Enum&, const int&) = delete; \
|
|
inline bool operator<=(const int&, const Name::Enum&) = delete; \
|
|
inline bool operator<=(const Name::Enum&, const int&) = delete; \
|
|
inline bool operator!(const Name::Enum&) = delete; \
|
|
inline bool operator&&(const bool&, const Name::Enum&) = delete; \
|
|
inline bool operator&&(const Name::Enum&, const bool&) = delete; \
|
|
inline bool operator||(const bool&, const Name::Enum&) = delete; \
|
|
inline bool operator||(const Name::Enum&, const bool&) = delete; \
|
|
inline int operator&(const int&, const Name::Enum&) = delete; \
|
|
inline int operator&(const Name::Enum&, const int&) = delete; \
|
|
inline int operator|(const int&, const Name::Enum&) = delete; \
|
|
inline int operator|(const Name::Enum&, const int&) = delete; \
|
|
inline int operator^(const int&, const Name::Enum&) = delete; \
|
|
inline int operator^(const Name::Enum&, const int&) = delete; \
|
|
inline int operator<<(const int&, const Name::Enum&) = delete; \
|
|
inline int operator<<(const Name::Enum&, const int&) = delete; \
|
|
inline int operator>>(const int&, const Name::Enum&) = delete; \
|
|
inline int operator>>(const Name::Enum&, const int&) = delete; \
|
|
inline int& operator+=(int&, const Name::Enum&) = delete; \
|
|
inline int& operator-=(int&, const Name::Enum&) = delete; \
|
|
inline int& operator*=(int&, const Name::Enum&) = delete; \
|
|
inline int& operator/=(int&, const Name::Enum&) = delete; \
|
|
inline int& operator%=(int&, const Name::Enum&) = delete; \
|
|
inline int& operator&=(int&, const Name::Enum&) = delete; \
|
|
inline int& operator|=(int&, const Name::Enum&) = delete; \
|
|
inline int& operator^=(int&, const Name::Enum&) = delete; \
|
|
inline int& operator<<=(int&, const Name::Enum&) = delete; \
|
|
inline int& operator>>=(int&, const Name::Enum&) = delete;
|
|
|
|
/*
|
|
* MOZ_ENUM_CLASS_ENUM_TYPE allows using enum classes
|
|
* as template parameter types. For that, we need integer types.
|
|
* In the present case, the integer type is the Enum nested type.
|
|
*/
|
|
# define MOZ_ENUM_CLASS_ENUM_TYPE(Name) Name::Enum
|
|
/*
|
|
* MOZ_TEMPLATE_ENUM_CLASS_ENUM_TYPE is a variant of MOZ_ENUM_CLASS_ENUM_TYPE
|
|
* to be used when the enum class at hand depends on template parameters.
|
|
*
|
|
* Indeed, if T depends on template parameters, in order to name a nested type
|
|
* in T, C++ does not allow to just write "T::NestedType". Instead, we have
|
|
* to write "typename T::NestedType". The role of this macro is to add
|
|
* this "typename" keywords where needed.
|
|
*
|
|
* Example:
|
|
*
|
|
* template<typename T, MOZ_TEMPLATE_ENUM_CLASS_ENUM_TYPE(T) Value>
|
|
* struct S {};
|
|
*
|
|
* MOZ_BEGIN_ENUM_CLASS(E)
|
|
* Foo,
|
|
* Bar
|
|
* MOZ_END_ENUM_CLASS(E)
|
|
*
|
|
* S<E, E::Bar> s;
|
|
*
|
|
* In this example, the second template parameter to S is meant to be of type
|
|
* T, but on non-C++11 compilers, type T is a class type, not an integer
|
|
* type, so it is not accepted as the type of a constant template parameter.
|
|
* One would then want to use MOZ_ENUM_CLASS_ENUM_TYPE(T), but that doesn't
|
|
* work either as T depends on template parameters (more specifically here, T
|
|
* _is_ a template parameter) so as MOZ_ENUM_CLASS_ENUM_TYPE(T) expands to
|
|
* T::Enum, we are missing the required "typename" keyword. So here,
|
|
* MOZ_TEMPLATE_ENUM_CLASS_ENUM_TYPE is needed.
|
|
*/
|
|
# define MOZ_TEMPLATE_ENUM_CLASS_ENUM_TYPE(Name) typename Name::Enum
|
|
#endif
|
|
|
|
# define MOZ_BEGIN_NESTED_ENUM_CLASS_GLUE(a, b) a b
|
|
# define MOZ_BEGIN_NESTED_ENUM_CLASS(...) \
|
|
MOZ_BEGIN_NESTED_ENUM_CLASS_GLUE( \
|
|
MOZ_PASTE_PREFIX_AND_ARG_COUNT(MOZ_BEGIN_NESTED_ENUM_CLASS_HELPER, \
|
|
__VA_ARGS__), \
|
|
(__VA_ARGS__))
|
|
|
|
# define MOZ_BEGIN_ENUM_CLASS(...) MOZ_BEGIN_NESTED_ENUM_CLASS(__VA_ARGS__)
|
|
# define MOZ_END_ENUM_CLASS(Name) \
|
|
MOZ_END_NESTED_ENUM_CLASS(Name) \
|
|
MOZ_FINISH_NESTED_ENUM_CLASS(Name)
|
|
|
|
#endif /* __cplusplus */
|
|
|
|
#endif /* mozilla_TypedEnum_h */
|