54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
#ifndef AUDIOGRAPHER_THROWING_H
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#define AUDIOGRAPHER_THROWING_H
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#ifndef DEFAULT_THROW_LEVEL
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#define DEFAULT_THROW_LEVEL ThrowStrict
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#endif
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#include "audiographer/visibility.h"
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namespace AudioGrapher
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{
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/** Compile time defined throw level.
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* Throw levels less than ThrowStrict should be used with caution.
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* Not throwing could mean getting a segfault.
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* However, if you want ultra-optimized code and/or don't care about handling
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* error situations, feel free to use whatever you want.
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*/
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enum /*LIBAUDIOGRAPHER_API*/ ThrowLevel
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{
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ThrowNone, ///< Not allowed to throw
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ThrowObject, ///< Object level stuff, ctors, initalizers etc.
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ThrowProcess, ///< Process cycle level stuff
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ThrowStrict, ///< Stricter checks than ThrowProcess, less than ThrowSample
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ThrowSample ///< Sample level stuff
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};
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/** Class that allows optimizing out error checking during compile time.
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* Usage: to take all advantage of this class you should wrap all
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* throwing statemets like this:
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* \code
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* if (throw_level (SomeThrowLevel) && other_optional_conditionals) {
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* throw Exception (...);
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* }
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* \endcode
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*
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* The order of the conditionals in the if-clause is important.
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* The checks specified in \a other_optional_conditionals are only
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* optimized out if \a throw_level() is placed before it with a
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* logical and (short-circuiting).
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*/
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template<ThrowLevel L = DEFAULT_THROW_LEVEL>
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class /*LIBAUDIOGRAPHER_API*/ Throwing
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{
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protected:
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Throwing() {}
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bool throw_level (ThrowLevel level) { return L >= level; }
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};
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} // namespace
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#endif // AUDIOGRAPHER_THROWING_H
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