/**
* Adds a function to the function definitions
*
* @param FunctionDefinition $func
* @param array $statement
*/
public function addFunction(FunctionDefinition $func, $statement = null)
{
$funcName = strtolower($func->getInternalName());
if (isset($this->functionDefinitions[$funcName])) {
throw new CompilerException("Function '" . $func->getCompleteName() . "' was defined more than one time", $statement);
}
$this->functionDefinitions[$funcName] = $func;
}
