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December 14, 2015 10:09
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ミックスインでAOPもどき(オレオレ改造PHPを使用)。
AOPサポートを追加すればInterceptor::invoke()の定義が不要になる。
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実行例 | |
/opt/php/exam/qiq/bin/php main.php | |
(before) | |
Hello! | |
(after) |
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<?php | |
trait Interceptor | |
{ | |
public function before() | |
{ | |
echo "(before)\n"; | |
} | |
public function after() | |
{ | |
echo "(after)\n"; | |
} | |
public function invoke() | |
{ | |
$this->before(); | |
parent::invoke(); | |
$this->after(); | |
} | |
} |
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<?php | |
set_include_path(__DIR__); | |
spl_autoload_register(); | |
function getInterceptor($class) | |
{ | |
return 'Interceptor'; | |
} | |
function getObject($class) | |
{ | |
$interceptor = getInterceptor($class); | |
if ($interceptor) { | |
return new $class use $interceptor; | |
} | |
return new $class; | |
} | |
getObject('Subject')->invoke(); |
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<?php | |
class Subject | |
{ | |
public function invoke() | |
{ | |
echo "Hello!\n"; | |
} | |
} |
確かに。直しました!
new $class use $interceptor;
これがいいですね!インターセプターを使って(=use =織り込んで) $classが生まれてる感じがします。
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いいですね、mixinとの融合がいいです!
(名前は trait Weaver よりtrait Interceptor や trait MethodInterceptor の方がいいかもしれませんね。織り込む方ではなくて織り込まれる側なので。どうでしょうか)