// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef HAVE_DEPENDENT_EH_ABI
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#error this header may only be used with libc++abi or libcxxrt
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#endif
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namespace std {
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exception_ptr::~exception_ptr() _NOEXCEPT {
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__cxa_decrement_exception_refcount(__ptr_);
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}
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exception_ptr::exception_ptr(const exception_ptr& other) _NOEXCEPT
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: __ptr_(other.__ptr_)
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{
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__cxa_increment_exception_refcount(__ptr_);
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}
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exception_ptr& exception_ptr::operator=(const exception_ptr& other) _NOEXCEPT
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{
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if (__ptr_ != other.__ptr_)
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{
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__cxa_increment_exception_refcount(other.__ptr_);
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__cxa_decrement_exception_refcount(__ptr_);
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__ptr_ = other.__ptr_;
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}
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return *this;
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}
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nested_exception::nested_exception() _NOEXCEPT
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: __ptr_(current_exception())
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{
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}
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nested_exception::~nested_exception() _NOEXCEPT
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{
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}
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_LIBCPP_NORETURN
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void
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nested_exception::rethrow_nested() const
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{
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if (__ptr_ == nullptr)
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terminate();
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rethrow_exception(__ptr_);
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}
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exception_ptr current_exception() _NOEXCEPT
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{
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// be nicer if there was a constructor that took a ptr, then
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// this whole function would be just:
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// return exception_ptr(__cxa_current_primary_exception());
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exception_ptr ptr;
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ptr.__ptr_ = __cxa_current_primary_exception();
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return ptr;
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}
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_LIBCPP_NORETURN
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void rethrow_exception(exception_ptr p)
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{
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__cxa_rethrow_primary_exception(p.__ptr_);
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// if p.__ptr_ is NULL, above returns so we terminate
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terminate();
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}
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} // namespace std
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