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/**
* D binding to C++ <new>
*
* 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/new_.d)
*/
module core.stdcpp.new_;
import core.stdcpp.xutility : __cpp_sized_deallocation, __cpp_aligned_new;
import core.stdcpp.exception : exception;
// TODO: this really should come from __traits(getTargetInfo, "defaultNewAlignment")
version (D_LP64)
enum size_t __STDCPP_DEFAULT_NEW_ALIGNMENT__ = 16;
else
enum size_t __STDCPP_DEFAULT_NEW_ALIGNMENT__ = 8;
extern (C++, "std")
{
///
struct nothrow_t {}
///
enum align_val_t : size_t { defaultAlignment = __STDCPP_DEFAULT_NEW_ALIGNMENT__ }
///
class bad_alloc : exception
{
@nogc:
///
this() { super("bad allocation", 1); }
}
}
///
T* cpp_new(T, Args...)(auto ref Args args) if (!is(T == class))
{
import core.lifetime : emplace, forward;
T* mem = cast(T*)__cpp_new(T.sizeof);
return mem.emplace(forward!args);
}
///
T cpp_new(T, Args...)(auto ref Args args) if (is(T == class))
{
import core.lifetime : emplace, forward;
T mem = cast(T)__cpp_new(__traits(classInstanceSize, T));
return mem.emplace(forward!args);
}
///
void cpp_delete(T)(T* ptr) if (!is(T == class))
{
destroy!false(*ptr);
__cpp_delete(ptr);
}
///
void cpp_delete(T)(T instance) if (is(T == class))
{
destroy!false(instance);
__cpp_delete(cast(void*) instance);
}
// raw C++ functions
extern(C++):
@nogc:
/// Binding for ::operator new(std::size_t count)
pragma(mangle, __new_mangle)
void* __cpp_new(size_t count);
/// Binding for ::operator new(std::size_t count, const std::nothrow_t&)
pragma(mangle, __new_nothrow_mangle)
void* __cpp_new_nothrow(size_t count, ref const(nothrow_t) = std_nothrow) nothrow;
/// Binding for ::operator delete(void* ptr)
pragma(mangle, __delete_mangle)
void __cpp_delete(void* ptr);
/// Binding for ::operator delete(void* ptr, const std::nothrow_t& tag)
pragma(mangle, __delete_nothrow_mangle)
void __cpp_delete_nothrow(void* ptr, ref const(nothrow_t) = std_nothrow) nothrow;
static if (__cpp_sized_deallocation)
{
/// Binding for ::operator delete(void* ptr, size_t size)
pragma(mangle, __delete_size_mangle)
void __cpp_delete_size(void* ptr, size_t size);
}
static if (__cpp_aligned_new)
{
/// Binding for ::operator new(std::size_t count, std::align_val_t al)
pragma(mangle, __new_align_mangle)
void* __cpp_new_aligned(size_t count, align_val_t alignment);
/// Binding for ::operator new(std::size_t count, std::align_val_t al, const std::nothrow_t&)
pragma(mangle, __new_aligned_nothrow_mangle)
void* __cpp_new_aligned_nothrow(size_t count, align_val_t alignment, ref const(nothrow_t) = std_nothrow) nothrow;
/// Binding for ::operator delete(void* ptr, std::align_val_t al)
pragma(mangle, __delete_align_mangle)
void __cpp_delete_aligned(void* ptr, align_val_t alignment);
/// Binding for ::operator delete(void* ptr, std::align_val_t al, const std::nothrow_t& tag)
pragma(mangle, __delete_align_nothrow_mangle)
void __cpp_delete_align_nothrow(void* ptr, align_val_t alignment, ref const(nothrow_t) = std_nothrow) nothrow;
/// Binding for ::operator delete(void* ptr, size_t size, std::align_val_t al)
pragma(mangle, __delete_size_align_mangle)
void __cpp_delete_size_aligned(void* ptr, size_t size, align_val_t alignment);
}
private:
extern (D):
__gshared immutable nothrow_t std_nothrow;
// we have to hard-code the mangling for the global new/delete operators
version (CppRuntime_Microsoft)
{
version (D_LP64)
{
enum __new_mangle = "??2@YAPEAX_K@Z";
enum __new_nothrow_mangle = "??2@YAPEAX_KAEBUnothrow_t@std@@@Z";
enum __delete_mangle = "??3@YAXPEAX@Z";
enum __delete_nothrow_mangle = "??3@YAXPEAXAEBUnothrow_t@std@@@Z";
enum __delete_size_mangle = "??3@YAXPEAX_K@Z";
enum __new_align_mangle = "??2@YAPEAX_KW4align_val_t@std@@@Z";
enum __new_aligned_nothrow_mangle = "??2@YAPEAX_KW4align_val_t@std@@AEBUnothrow_t@1@@Z";
enum __delete_align_mangle = "??3@YAXPEAXW4align_val_t@std@@@Z";
enum __delete_align_nothrow_mangle = "??3@YAXPEAXW4align_val_t@std@@AEBUnothrow_t@1@@Z";
enum __delete_size_align_mangle = "??3@YAXPEAX_KW4align_val_t@std@@@Z";
}
else
{
enum __new_mangle = "??2@YAPAXI@Z";
enum __new_nothrow_mangle = "??2@YAPAXIABUnothrow_t@std@@@Z";
enum __delete_mangle = "??3@YAXPAX@Z";
enum __delete_nothrow_mangle = "??3@YAXPAXABUnothrow_t@std@@@Z";
enum __delete_size_mangle = "??3@YAXPAXI@Z";
enum __new_align_mangle = "??2@YAPAXIW4align_val_t@std@@@Z";
enum __new_aligned_nothrow_mangle = "??2@YAPAXIW4align_val_t@std@@ABUnothrow_t@1@@Z";
enum __delete_align_mangle = "??3@YAXPAXW4align_val_t@std@@@Z";
enum __delete_align_nothrow_mangle = "??3@YAXPAXW4align_val_t@std@@ABUnothrow_t@1@@Z";
enum __delete_size_align_mangle = "??3@YAXPAXIW4align_val_t@std@@@Z";
}
}
else
{
version (D_LP64)
{
enum __new_mangle = "_Znwm";
enum __new_nothrow_mangle = "_ZnwmRKSt9nothrow_t";
enum __delete_mangle = "_ZdlPv";
enum __delete_nothrow_mangle = "_ZdlPvRKSt9nothrow_t";
enum __delete_size_mangle = "_ZdlPvm";
enum __new_align_mangle = "_ZnwmSt11align_val_t";
enum __new_aligned_nothrow_mangle = "_ZnwmSt11align_val_tRKSt9nothrow_t";
enum __delete_align_mangle = "_ZdlPvSt11align_val_t";
enum __delete_align_nothrow_mangle = "_ZdlPvSt11align_val_tRKSt9nothrow_t";
enum __delete_size_align_mangle = "_ZdlPvmSt11align_val_t";
}
else
{
enum __new_mangle = "_Znwj";
enum __new_nothrow_mangle = "_ZnwjRKSt9nothrow_t";
enum __delete_mangle = "_ZdlPv";
enum __delete_nothrow_mangle = "_ZdlPvRKSt9nothrow_t";
enum __delete_size_mangle = "_ZdlPvj";
enum __new_align_mangle = "_ZnwjSt11align_val_t";
enum __new_aligned_nothrow_mangle = "_ZnwjSt11align_val_tRKSt9nothrow_t";
enum __delete_align_mangle = "_ZdlPvSt11align_val_t";
enum __delete_align_nothrow_mangle = "_ZdlPvSt11align_val_tRKSt9nothrow_t";
enum __delete_size_align_mangle = "_ZdlPvjSt11align_val_t";
}
}
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