55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
// SPDX-License-Identifier: BSD-2-Clause
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// author: Max Kellermann <max.kellermann@gmail.com>
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#include "Exception.hxx"
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#include <utility>
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template<typename T>
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static void
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AppendNestedMessage(std::string &result, T &&e,
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const char *fallback, const char *separator) noexcept
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{
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try {
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std::rethrow_if_nested(std::forward<T>(e));
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} catch (const std::exception &nested) {
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result += separator;
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result += nested.what();
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AppendNestedMessage(result, nested, fallback, separator);
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} catch (const std::nested_exception &ne) {
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AppendNestedMessage(result, ne, fallback, separator);
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} catch (const char *s) {
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result += separator;
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result += s;
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} catch (...) {
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result += separator;
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result += fallback;
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}
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}
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std::string
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GetFullMessage(const std::exception &e,
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const char *fallback, const char *separator) noexcept
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{
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std::string result = e.what();
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AppendNestedMessage(result, e, fallback, separator);
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return result;
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}
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std::string
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GetFullMessage(std::exception_ptr ep,
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const char *fallback, const char *separator) noexcept
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{
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try {
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std::rethrow_exception(std::move(ep));
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} catch (const std::exception &e) {
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return GetFullMessage(e, fallback, separator);
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} catch (const std::nested_exception &ne) {
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return GetFullMessage(ne.nested_ptr(), fallback, separator);
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} catch (const char *s) {
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return s;
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} catch (...) {
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return fallback;
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}
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}
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