public static function createFromToken(FunctionDefine $aFunctionDefine, Aspect $aAspect)
{
if (!($aClassDefine = $aFunctionDefine->belongsClass())) {
throw new Exception("传入的 \$aFunctionDefine 参数无效，必须是一个类方法的定义Token");
}
if (!($aDocToken = $aFunctionDefine->docToken())) {
throw new Exception("传入了无效Advice %s::%s() ：没有DocComment申明。", array($aClassDefine->fullName(), $aFunctionDefine->name()));
}
$aDocComment = $aDocToken->docComment();
$sPosition = null;
if ($aDocComment->hasItem('advice')) {
$sPosition = $aDocComment->item('advice');
$sPosition = trim($sPosition);
$sPosition = strtolower($sPosition);
}
if (!$sPosition) {
$sPosition = self::after;
}
$aAdvice = new self($aFunctionDefine->name(), $aFunctionDefine->bodySource(), $sPosition, $aFunctionDefine);
$aAdvice->aDefineAspect = $aAspect;
// for pointcut
foreach ($aDocComment->itemIterator('for') as $sPointcutName) {
if (!($aPointcut = $aAspect->pointcuts()->getByName($sPointcutName))) {
throw new Exception("定义Aspect %s 的 Advice %s 时，申明了一个不存在的 Pointcut: %s 。", array($sAspectName, $aAdvice->name(), $sPointcutName));
}
$aAdvice->arrForPointcuts[] = $sPointcutName;
}
return $aAdvice;
}
private function parseAspectClass($sAspectClass)
{
if (!($sClassFile = ClassLoader::singleton()->searchClass($sAspectClass, Package::nocompiled))) {
throw new Exception("注册到AOP中的Aspace(%s)不存在; Aspace必须是一个有效的类", $sAspectClass);
}
$aClassCompiler = CompilerFactory::singleton()->create();
$aTokenPool = $aClassCompiler->scan($sClassFile);
$aClassCompiler->interpret($aTokenPool);
if (!($aClassToken = $aTokenPool->findClass($sAspectClass))) {
throw new Exception("根据 class path 搜索到class的定义文件：%s，但是该文件中没有定义：%s", array($sAspectClass, $sClassFile, $sAspectClass));
}
$this->aspects()->add(Aspect::createFromToken($aClassToken, $sClassFile));
}
