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Update sqratFunction.h

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This commit is contained in:
Sandu Liviu Catalin 2021-07-10 14:16:24 +03:00
parent e86e5d5741
commit cdf57cd0be
1 changed files with 39 additions and 0 deletions
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39
module/Sqrat/sqratFunction.h
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@ -318,6 +318,45 @@ struct Function {
sq_settop(vm, top);
return ret;
}
// Runs the Function and returns its value as R
template<class R, class... Args> R Evaluate_(SqTypeIdentity<R>, Args &&... args) const {
static constexpr unsigned ARGC = sizeof...(Args) + 1; // + environment
HSQUIRRELVM vm = SqVM();
const SQInteger top = sq_gettop(vm);
// Push the environment followed by the function
sq_pushobject(vm, mObj);
sq_pushobject(vm, mEnv);
// Validate the funtion parameter count
#if !defined (SCRAT_NO_ERROR_CHECKING)
SQInteger nparams;
SQInteger nfreevars;
if (SQ_SUCCEEDED(sq_getclosureinfo(vm, -2, &nparams, &nfreevars)) &&
SqGlobalParamInspect< ArgFwd<Args...>::HASOPT >::Invalid(nparams, ARGC)) {
sq_pop(vm, 2);
SQTHROW(vm, _SC("wrong number of parameters"));
return R();
}
#endif
// Push the arguments
PushVars(vm, std::forward<Args>(args)...);
#if !defined (SCRAT_NO_ERROR_CHECKING)
SQRESULT result = sq_call(vm, ARGC, true, ErrorHandling::IsEnabled());
//handle an error: pop the stack and throw the exception
if (SQ_FAILED(result)) {
sq_settop(vm, top);
SQTHROW(vm, LastErrorString(vm));
return R();
}
#else
sq_call(vm, ARGC, true, ErrorHandling::IsEnabled());
#endif
Var<R> r(vm, -1);
sq_settop(vm, top);
return r.value;
}
// Runs the Function
template< class... Args >
void Execute(Args &&... args) const {