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22 lines
846 B
C++
22 lines
846 B
C++
namespace LX
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{
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// Foward declares LX::RuntimeError so it can be used to see if a class derives from //
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struct RuntimeError;
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// Util function to throw an error if the condition is met //
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// Given error type must derive from LX::RuntimeError //
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template<typename Error, typename... Args> requires
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std::is_constructible_v<Error, Args...> && // <- Checks the arguments can be used to construct the object
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std::is_base_of_v<LX::RuntimeError, Error> // <- Checks the error class is a child of LX::RuntimeError
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inline void ThrowIf(const bool condition, Args&&... args)
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{
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// Checks if the condition is met and micro-optimises that errors will not be thrown //
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if (condition) [[unlikely]]
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{
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// Throws a COPY of the error and not itself //
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// How C++ works, no way around it //
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throw Error(std::forward<Args>(args)...);
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}
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}
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}
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