libsycl/src/exception.cpp

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include <sycl/__impl/context.hpp>
#include <sycl/__impl/detail/config.hpp>
#include <sycl/__impl/exception.hpp>

#include <utility>

_LIBSYCL_BEGIN_NAMESPACE_SYCL

namespace {
class SYCLCategory : public std::error_category {
public:
  const char *name() const noexcept override { return "sycl"; }
  std::string message(int) const override { return "SYCL Error"; }
};
} // namespace

// Free functions
const std::error_category &sycl_category() noexcept {
  static const SYCLCategory SYCLCategoryObj;
  return SYCLCategoryObj;
}

std::error_code make_error_code(sycl::errc e) noexcept {
  return std::error_code(static_cast<int>(e), sycl_category());
}

// Exception methods implementation
exception::exception(std::error_code EC, std::shared_ptr<context> SharedPtrCtx,
                     const char *WhatArg)
    : MMessage(std::make_shared<std::string>(WhatArg)),
      MContext(std::move(SharedPtrCtx)), MErrC(EC) {}

exception::~exception() = default;

const std::error_code &exception::code() const noexcept { return MErrC; }

const std::error_category &exception::category() const noexcept {
  return code().category();
}

const char *exception::what() const noexcept { return MMessage->c_str(); }

bool exception::has_context() const noexcept { return MContext != nullptr; }

context exception::get_context() const {
  if (!has_context())
    throw exception(make_error_code(sycl::errc::invalid),
                    "Exception does not have an associated context.");
  return *MContext;
}

_LIBSYCL_END_NAMESPACE_SYCL