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/**
* D binding to C++ <memory>.
*
* Copyright: Copyright (c) 2019 D Language Foundation
* License: Distributed under the
* $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost Software License 1.0).
* (See accompanying file LICENSE)
* Authors: Manu Evans
* Source: $(DRUNTIMESRC core/stdcpp/memory.d)
*/
module core.stdcpp.memory;
public import core.stdcpp.allocator;
import core.stdcpp.xutility : StdNamespace;
extern(C++, (StdNamespace)):
///
unique_ptr!T make_unique(T, Args...)(auto ref Args args)
{
import core.lifetime : forward;
import core.stdcpp.new_ : cpp_new;
return unique_ptr!T(cpp_new!T(forward!args));
}
///
struct default_delete(T)
{
///
alias pointer = ClassOrPtr!T;
///
void opCall()(pointer ptr) const
{
import core.stdcpp.new_ : cpp_delete;
cpp_delete(ptr);
}
}
///
extern(C++, class)
struct unique_ptr(T, Deleter = default_delete!T)
{
extern(D):
///
this(this) @disable;
///
~this()
{
reset();
}
///
ref unique_ptr opAssign(typeof(null))
{
reset();
return this;
}
///
void reset(pointer p = null)
{
pointer t = __ptr();
__ptr() = p;
if (t)
get_deleter()(t);
}
nothrow pure @safe @nogc:
///
alias pointer = ClassOrPtr!T;
///
alias element_type = T;
///
alias deleter_type = Deleter;
///
this(pointer ptr)
{
__ptr() = ptr;
}
///
inout(pointer) get() inout nothrow
{
return __ptr();
}
///
bool opCast(T : bool)() const nothrow
{
return __ptr() != null;
}
///
pointer release() nothrow
{
pointer t = __ptr();
__ptr() = null;
return t;
}
// void swap(ref unique_ptr u) nothrow
// {
// __ptr_.swap(__u.__ptr_);
// }
version (CppRuntime_Microsoft)
{
///
ref inout(deleter_type) get_deleter() inout nothrow { return _Mypair._Myval1; }
private:
import core.stdcpp.xutility : _Compressed_pair;
ref pointer __ptr() nothrow { return _Mypair._Myval2; }
inout(pointer) __ptr() inout nothrow { return _Mypair._Myval2; }
_Compressed_pair!(Deleter, pointer) _Mypair;
}
else version (CppRuntime_Gcc)
{
///
ref inout(deleter_type) get_deleter() inout nothrow { return _M_t.get!1; }
private:
import core.stdcpp.tuple : tuple, get;
ref pointer __ptr() nothrow { return _M_t.get!0; }
inout(pointer) __ptr() inout nothrow { return _M_t.get!0; }
tuple!(pointer, Deleter) _M_t;
}
else version (CppRuntime_Clang)
{
///
ref inout(deleter_type) get_deleter() inout nothrow { return __ptr_.second; }
private:
import core.stdcpp.xutility : __compressed_pair;
ref pointer __ptr() nothrow { return __ptr_.first; }
inout(pointer) __ptr() inout nothrow { return __ptr_.first; }
__compressed_pair!(pointer, deleter_type) __ptr_;
}
}
private:
template ClassOrPtr(T)
{
static if (is(T == class))
alias ClassOrPtr = T;
else
alias ClassOrPtr = T*;
}
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