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Construct remaining hot-path exceptions out of line so core functions inline

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Signed-off-by: Niels Lohmann <mail@nlohmann.me>
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Niels Lohmann committed 2026-10-15 11:46:50 +02:00
1 parent f674a61318
commit 0570c5b06b
6 files changed
+270 -72
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include/nlohmann/detail/exceptions.hpp
+14 -2
View File
@@ -428,7 +428,7 @@ void templated_json_throw(ExceptionType exception)
@throw type_error.302 always
*/
template<typename BasicJsonType>
JSON_HEDLEY_NO_RETURN inline void throw_type_must_be(const char* expected, const BasicJsonType& j)
JSON_HEDLEY_NO_RETURN JSON_HEDLEY_NEVER_INLINE void throw_type_must_be(const char* expected, const BasicJsonType& j)
{
static_cast<void>(expected); // unused when JSON_NOEXCEPTION is defined
static_cast<void>(j);
@@ -443,7 +443,7 @@ JSON_HEDLEY_NO_RETURN inline void throw_type_must_be(const char* expected, const
@throw type_error always
*/
template<typename BasicJsonType>
JSON_HEDLEY_NO_RETURN inline void throw_cannot_use_with(const exception_id id_, const char* operation, const BasicJsonType& j)
JSON_HEDLEY_NO_RETURN JSON_HEDLEY_NEVER_INLINE void throw_cannot_use_with(const exception_id id_, const char* operation, const BasicJsonType& j)
{
static_cast<void>(id_); // unused when JSON_NOEXCEPTION is defined
static_cast<void>(operation);
@@ -451,6 +451,18 @@ JSON_HEDLEY_NO_RETURN inline void throw_cannot_use_with(const exception_id id_,
JSON_THROW(type_error::create(id_, concat("cannot use ", operation, " with ", j.type_name()), &j));
}
/*!
@brief throws ExceptionType with a fixed message; kept out of line so that callers do not carry the exception construction
*/
template<typename ExceptionType, typename BasicJsonContext>
JSON_HEDLEY_NO_RETURN JSON_HEDLEY_NEVER_INLINE void throw_literal(const exception_id id_, const char* what_arg, BasicJsonContext context)
{
static_cast<void>(id_); // unused when JSON_NOEXCEPTION is defined
static_cast<void>(what_arg);
static_cast<void>(context);
JSON_THROW(ExceptionType::create(id_, what_arg, context));
}
} // namespace detail
NLOHMANN_JSON_NAMESPACE_END