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author anatofuz <anatofuz@cr.ie.u-ryukyu.ac.jp>
date Sun, 14 Feb 2021 21:18:56 +0900
parents f7f3a57a90c2
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footer{bottom:21px}div#p>svg>foreignObject>section{align-items:stretch;background:#fff;display:flex;flex-direction:column;flex-wrap:nowrap;font-size:29px;height:720px;justify-content:center;padding:78.5px;width:1280px}div#p>svg>foreignObject>section{--marpit-root-font-size:29px}div#p>svg>foreignObject>section>:last-child,div#p>svg>foreignObject>section[data-footer]>:nth-last-child(2){margin-bottom:0}div#p>svg>foreignObject>section>:first-child,div#p>svg>foreignObject>section>header:first-child+*{margin-top:0}div#p>svg>foreignObject>section:after{position:absolute;padding:0;right:30px;bottom:21px;font-size:24px;color:#777}div#p>svg>foreignObject>section:after{--marpit-root-font-size:24px}div#p>svg>foreignObject>section.invert{background-color:#222;color:#e6eaf0}div#p>svg>foreignObject>section.invert:after{color:#999}div#p>svg>foreignObject>section.invert img{background-color:transparent}div#p>svg>foreignObject>section.invert a{color:#50b3ff}div#p>svg>foreignObject>section.invert h1{color:#a3c5e7}div#p>svg>foreignObject>section.invert h2,div#p>svg>foreignObject>section.invert h3,div#p>svg>foreignObject>section.invert h4,div#p>svg>foreignObject>section.invert h5{color:#ebeff5}div#p>svg>foreignObject>section.invert blockquote,div#p>svg>foreignObject>section.invert h6{border-color:#3d3f43;color:#939699}div#p>svg>foreignObject>section.invert h1 strong,div#p>svg>foreignObject>section.invert h2 strong,div#p>svg>foreignObject>section.invert h3 strong,div#p>svg>foreignObject>section.invert h4 strong,div#p>svg>foreignObject>section.invert h5 strong,div#p>svg>foreignObject>section.invert h6 strong{color:#7bf}div#p>svg>foreignObject>section.invert hr{background-color:#3d3f43}div#p>svg>foreignObject>section.invert footer,div#p>svg>foreignObject>section.invert header{color:hsla(0,0%,60%,.75)}div#p>svg>foreignObject>section.invert code,div#p>svg>foreignObject>section.invert kbd{background-color:#111}div#p>svg>foreignObject>section.invert kbd{border-color:#666;box-shadow:inset 0 -1px 0 #555;color:#e6eaf0}div#p>svg>foreignObject>section.invert table tr{background-color:#12181d;border-color:#60657b}div#p>svg>foreignObject>section.invert table tr:nth-child(2n){background-color:#1b2024}div#p>svg>foreignObject>section.invert table td,div#p>svg>foreignObject>section.invert table th{border-color:#5b5e61}div#p>svg>foreignObject>section.invert pre{background-color:#0a0e12;border-color:#777}div#p>svg>foreignObject>section.invert pre code{background-color:transparent}div#p>svg>foreignObject>section[data-color] h1,div#p>svg>foreignObject>section[data-color] h2,div#p>svg>foreignObject>section[data-color] h3,div#p>svg>foreignObject>section[data-color] h4,div#p>svg>foreignObject>section[data-color] h5,div#p>svg>foreignObject>section[data-color] h6{color:currentColor}div#p>svg>foreignObject>section[data-marpit-advanced-background=background]{display:block!important;padding:0!important}div#p>svg>foreignObject>section[data-marpit-advanced-background=background]:after,div#p>svg>foreignObject>section[data-marpit-advanced-background=background]:before,div#p>svg>foreignObject>section[data-marpit-advanced-background=content]:after,div#p>svg>foreignObject>section[data-marpit-advanced-background=content]:before{display:none!important}div#p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]{all:initial;display:flex;flex-direction:row;height:100%;overflow:hidden;width:100%}div#p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container][data-marpit-advanced-background-direction=vertical]{flex-direction:column}div#p>svg>foreignObject>section[data-marpit-advanced-background=background][data-marpit-advanced-background-split]>div[data-marpit-advanced-background-container]{width:var(--marpit-advanced-background-split,50%)}div#p>svg>foreignObject>section[data-marpit-advanced-background=background][data-marpit-advanced-background-split=right]>div[data-marpit-advanced-background-container]{margin-left:calc(100% - var(--marpit-advanced-background-split, 50%))}div#p>svg>foreignObject>section[data-marpit-advanced-background=background]>div[data-marpit-advanced-background-container]>figure{all:initial;background-position:center;background-repeat:no-repeat;background-size:cover;flex:auto;margin:0}div#p>svg>foreignObject>section[data-marpit-advanced-background=content],div#p>svg>foreignObject>section[data-marpit-advanced-background=pseudo]{background:transparent!important}div#p>svg>foreignObject>section[data-marpit-advanced-background=pseudo],div#p>svg[data-marpit-svg]>foreignObject[data-marpit-advanced-background=pseudo]{pointer-events:none!important}div#p>svg>foreignObject>section[data-marpit-advanced-background-split]{width:100%;height:100%}</style></head><body><div class="bespoke-marp-osc"><button data-bespoke-marp-osc="prev" tabindex="-1" title="Previous slide">Previous slide</button><span data-bespoke-marp-osc="page"></span><button data-bespoke-marp-osc="next" tabindex="-1" title="Next slide">Next slide</button><button data-bespoke-marp-osc="fullscreen" tabindex="-1" title="Toggle fullscreen (f)">Toggle fullscreen</button><button data-bespoke-marp-osc="presenter" tabindex="-1" title="Open presenter view (p)">Open presenter view</button></div><div id="p"><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="1" data-paginate="true" data-marpit-pagination="1" data-marpit-pagination-total="18" style="--paginate:true;">
<h1>GearsOSのメタ計算</h1>
<ul>
<li>清水 隆博
<ul>
<li>琉球大学理工学研究科</li>
<li>198584B</li>
<li>河野研</li>
</ul>
</li>
<li><a href="http://www.cr.ie.u-ryukyu.ac.jp/hg/Papers/2021/anatofuz-master/raw-file/tip/paper/master_paper.pdf">修論本体</a></li>
<li><a href="http://www.cr.ie.u-ryukyu.ac.jp/hg/Papers/2021/anatofuz-master/raw-file/tip/slide/index.html">修論審査スライド</a></li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="2" data-paginate="true" data-marpit-pagination="2" data-marpit-pagination-total="18" style="--paginate:true;">
<h1>ノーマル、メタレベルの計算とGearsOS</h1>
<ul>
<li>ノーマル/メタレベルを一貫して記述できる言語にContinuation Based Cがある
<ul>
<li>CbCを用いてGearsOSを開発している</li>
</ul>
</li>
<li>GearsOSではメタ計算の生成にトランスパイラを使っている
<ul>
<li>トランスパイラとはコードからコードを生成する処理系のこと</li>
<li>生成しなければならないメタ計算の量が多いため、自動的に生成する</li>
<li>CMakeとPerlでビルド時にノーマルレベルのコードをメタレベルに変換する</li>
<li>ノーマルレベルで書いた記述がそのままコンパイルされる訳ではない</li>
</ul>
</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="3" data-paginate="true" data-marpit-pagination="3" data-marpit-pagination-total="18" style="--paginate:true;">
<h1>GearsOSのビルドシステム</h1>
<ul>
<li>CMakeとPerlを使ってビルドする
<ul>
<li>CMakeはMakefileやbuild.ninjaを生成する</li>
<li>Perlは2種類のスクリプトが自動的に呼ばれる</li>
</ul>
</li>
<li>Perlによってコード変換・ファイル生成が行われた後にコンパイルが走る
<ul>
<li>Perlの実行前はノーマルレベルだけのコード、実行後はメタが入る</li>
</ul>
</li>
</ul>
<p><img src="./geasflow1.svg" alt="w:632 h:10cm" style="width:632px;height:10cm;" /></p>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="4" data-paginate="true" data-marpit-pagination="4" data-marpit-pagination-total="18" style="--paginate:true;">
<h1>Context</h1>
<ul>
<li>従来のOSのプロセスに相当するMetaDataGear</li>
<li>GearsOSでのプログラム実行に必要な情報を持っている
<ul>
<li>DataGearの型定義</li>
<li>CodeGearの名前とStubCodeGearへの対応</li>
<li>goto時に引数を書き込むDataGearごとの場所</li>
<li>DataGearを管理するヒープ情報</li>
</ul>
</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="5" data-paginate="true" data-marpit-pagination="5" data-marpit-pagination-total="18" style="--paginate:true;">
<h1>Context</h1>
<ul>
<li>GearsOSでcontextを触るのはメタ計算部分だけ
<ul>
<li>ノーマルレベルではcontextに触れない</li>
</ul>
</li>
<li>従来は手書きでcontext.hの中で定義</li>
<li>Context自体は構造体で定義されている<br />
<img src="./context.svg" alt="w:532 h:10cm" style="width:532px;height:10cm;" /></li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="6" data-paginate="true" data-marpit-pagination="6" data-marpit-pagination-total="18" style="--paginate:true;">
<h1>メタレベルでのDataGearの管理</h1>
<ul>
<li>メタレベルではDataGearを纏めて管理する必要がある</li>
<li>すべてのDataGearはCの共用体を使って定義される
<ul>
<li><code>union Data</code>型</li>
</ul>
</li>
<li><code>union Data</code>はすべてのDataGearにキャストすることが可能
<ul>
<li>Contextには<code>union Data</code>としてDataGearを保存する</li>
</ul>
</li>
<li>メタレベルの計算では必ずこの<code>union Data</code>が利用される</li>
</ul>
<pre><code class="language-c"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-class"><span class="hljs-keyword">union</span> <span class="hljs-title">Data</span> {</span>
    <span class="hljs-class"><span class="hljs-keyword">struct</span> <span class="hljs-title">Stack</span> {</span>
        ...
    } Stack;
    <span class="hljs-class"><span class="hljs-keyword">struct</span> <span class="hljs-title">SingleLinkedStack</span> {</span>
        ...
    } SingleLinkedStack;
    <span class="hljs-class"><span class="hljs-keyword">struct</span> <span class="hljs-title">Context</span> <span class="hljs-title">Context</span>;</span>
    ...
}
</span></span></foreignObject></svg></code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="7" data-paginate="true" data-marpit-pagination="7" data-marpit-pagination-total="18" style="--paginate:true;">
<h1>union Dataの定義</h1>
<ul>
<li>union Data型はcontext.hに定義されている</li>
<li>計算で使うすべてのDataGearの構造体の定義を列挙する
<ul>
<li>従来は手書きですべて記述</li>
<li>Intefaceの定義を書き、CbCを書き、context.hに追記...</li>
</ul>
</li>
<li>手書きで生成していたので、いくつかの問題があった
<ul>
<li>整理しないと計算に使わないDataGearの定義が残る</li>
<li>Interfaceの定義ファイルと食い違うケースがある</li>
<li>DataGearの数が増えると手書きするのが煩雑</li>
</ul>
</li>
<li>すべてのメタレベルの計算の元となる重要なデータ
<ul>
<li>手書きの場合ミスが発生する可能性が高い</li>
</ul>
</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="8" data-paginate="true" data-marpit-pagination="8" data-marpit-pagination-total="18" style="--paginate:true;">
<h1>メタレベルに変換されたGearsOSの実装</h1>
<ul>
<li>
<p>ノーマルレベルのCodeGearの継続は、contextとCodeGearの番号のみ指定する</p>
<ul>
<li>次の継続を番号で指定する</li>
<li>次の継続への引数も値をcontextに書き込むように変更される</li>
</ul>
</li>
<li>
<p>CodeGearの継続は直接行かず、MetaCodeGearを経由して継続する</p>
<ul>
<li>呼び出したいCodeGearはMetaCodeGearが番号から取り出す</li>
<li>アドレスを直接使うのはメタ計算のみ</li>
<li>各CodeGearはContextのみ持ち歩き、入力はStubCodeGearから与えられる</li>
</ul>
</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="9" data-paginate="true" data-marpit-pagination="9" data-marpit-pagination-total="18" style="--paginate:true;">
<h1>CodeGear、DataGearの番号</h1>
<ul>
<li>Perlで変換するとCodeGear/DataGear番号の形に抽象化される
<ul>
<li>番号から具体的なCodeGear/DataGearを取り出すのはメタレベル
<ul>
<li><code>goto meta</code>でcontextからCodeGearの取り出し</li>
<li>StubCodeGearでcotnextからDataGearの取り出し</li>
</ul>
</li>
</ul>
</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="10" data-paginate="true" data-marpit-pagination="10" data-marpit-pagination-total="18" style="--paginate:true;">
<h1>CodeGearの番号</h1>
<ul>
<li>ビルドするCbCファイルをPerlで解析し、<code>__code</code>を数え上げる
<ul>
<li>連番でenumを生成する</li>
</ul>
</li>
<li>Contextの中にCodeGearの配列がある
<ul>
<li>StubCodeGearへの参照が含まれている</li>
</ul>
</li>
</ul>
<pre><code class="language-c"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-class"><span class="hljs-keyword">enum</span> <span class="hljs-title">Code</span> {</span>
    C_checkAndSetAtomicReference,
    C_clearSingleLinkedStack,
    C_clearSynchronizedQueue,
    C_createTask,
    C_decrementTaskCountTaskManagerImpl,
    C_exit_code,
    C_get2SingleLinkedStack,
    ...
};
</span></span></foreignObject></svg></code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="11" data-paginate="true" data-marpit-pagination="11" data-marpit-pagination-total="18" style="--paginate:true;">
<h1>DataGearの番号</h1>
<ul>
<li>union Dataで定義されている構造体一覧からPerlで生成される
<ul>
<li>context.hの内容に依存する</li>
</ul>
</li>
</ul>
<pre><code class="language-c"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-class"><span class="hljs-keyword">enum</span> <span class="hljs-title">DataType</span> {</span>
    D_Code,
    D_Atomic,
    D_AtomicReference,
    D_CPUWorker,
    D_Context,
    D_Element,
    ...
};
</span></span></foreignObject></svg></code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="12" data-paginate="true" data-marpit-pagination="12" data-marpit-pagination-total="18" style="--paginate:true;">
<h1>StubCodeGear</h1>
<ul>
<li>DataGearにアクセスするにはContextから番号を指定して行う</li>
<li>メタレベルのCodeGearは引数はContextのみになっている
<ul>
<li>CodeGearの引数に指定していたものは、ContextからMetaCodeGearで取り出す必要がある</li>
</ul>
</li>
<li>StubCodeGearはCodeGearの直前に実行されて、DataGearをContextから取得する</li>
</ul>
<p><img src="./contextContinuation.svg" alt="w:540 h:400" style="width:540px;height:400px;" /></p>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="13" data-paginate="true" data-marpit-pagination="13" data-marpit-pagination-total="18" style="--paginate:true;">
<h1>GearsOSの新機能</h1>
<ul>
<li><strong>自由なMetaCodeGearの作製、継続の入れ替え機能</strong></li>
<li>Perlトランスパイラの変換ルーチンのデバッグ機能の追加
<ul>
<li>トランスパイラそのもののデバッグが困難であった</li>
</ul>
</li>
<li>ジェネリクスのサポート</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="14" data-paginate="true" data-marpit-pagination="14" data-marpit-pagination-total="18" style="--paginate:true;">
<h1>メタ計算の切り替えAPI</h1>
<ul>
<li>通常だとCodeGearの実行後、<code>goto meta</code>に継続するようにPerlで変換される
<ul>
<li>継続するMetaCodeGearを自由に選択したい</li>
</ul>
</li>
</ul>
<pre><code class="language-c"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-function">__code <span class="hljs-title">thinkingPhilsImpl</span><span class="hljs-params">(struct Context *context,struct PhilsImpl* phils,
                                        struct Fork* fork, <span class="hljs-keyword">enum</span> Code next)</span> </span>{
    <span class="hljs-built_in">printf</span>(<span class="hljs-string">&quot;%d: thinking\n&quot;</span>, phils-&gt;self);
    <span class="hljs-function"><span class="hljs-keyword">goto</span> <span class="hljs-title">meta</span><span class="hljs-params">(context, C_pickup_lforkPhilsImpl)</span></span>;
}
</span></span></foreignObject></svg></code></pre>
<ul>
<li>例えばモデル検査用のMetaCodeGear(<code>mcMeta</code>)にgotoさせたい</li>
</ul>
<pre><code class="language-c"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-function">__code <span class="hljs-title">thinkingPhilsImpl</span><span class="hljs-params">(struct Context *context,struct PhilsImpl* phils,
                                        struct Fork* fork, <span class="hljs-keyword">enum</span> Code next)</span> </span>{
    <span class="hljs-built_in">printf</span>(<span class="hljs-string">&quot;%d: thinking\n&quot;</span>, phils-&gt;self);
    <span class="hljs-function"><span class="hljs-keyword">goto</span> <span class="hljs-title">mcMeta</span><span class="hljs-params">(context, C_pickup_lforkPhilsImpl)</span></span>;
}
</span></span></foreignObject></svg></code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="15" data-paginate="true" data-marpit-pagination="15" data-marpit-pagination-total="18" style="--paginate:true;">
<h1><a href="http://mta.pm">mta.pm</a></h1>
<ul>
<li>CodeGearが継続するMetaCodeGearを自由に選択できるPerlモジュールを導入した</li>
<li>APIに沿ってPerlモジュールを書くことで特定のCodeGearの継続先を変更可能
<ul>
<li>Perlトランスパイラがコード変換時に自動ロードして実行する<br />
<img src="./metapm.svg" alt="w:932 h:10cm" style="width:932px;height:10cm;" /></li>
</ul>
</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="16" data-paginate="true" data-marpit-pagination="16" data-marpit-pagination-total="18" style="--paginate:true;">
<h1><a href="http://meta.pm">meta.pm</a></h1>
<ul>
<li><code>replaceMeta</code>関数に置換対象と生成する<code>goto</code>の組をリストで登録
<ul>
<li><code>qr//</code>に正規表現リテラルで置換対象のCodeGearの名前を指定</li>
<li><code>=&gt;</code>の先に対応するgoto文の生成関数を指定する</li>
</ul>
</li>
<li>この例では<code>PhilsImpl</code>が名前についているCodeGearが一括で<code>goto mcMeta</code>になる</li>
</ul>
<pre><code class="language-perl"><svg data-marp-fitting="svg" data-marp-fitting-code><foreignObject><span data-marp-fitting-svg-content><span data-marp-fitting-svg-content-wrap><span class="hljs-keyword">package</span> meta;

<span class="hljs-function"><span class="hljs-keyword">sub</span> <span class="hljs-title">replaceMeta</span> </span>{
  <span class="hljs-keyword">return</span> (
    [<span class="hljs-regexp">qr/PhilsImpl/</span> =&gt; \&amp;generateMcMeta],
  );
}

<span class="hljs-function"><span class="hljs-keyword">sub</span> <span class="hljs-title">generateMcMeta</span> </span>{
  <span class="hljs-keyword">my</span> ($context, $next) = @_;
  <span class="hljs-keyword">return</span> <span class="hljs-string">&quot;goto mcMeta($context, $next);&quot;</span>;
}
</span></span></foreignObject></svg></code></pre>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="17" data-paginate="true" data-marpit-pagination="17" data-marpit-pagination-total="18" style="--paginate:true;">
<h1>今後の課題</h1>
<ul>
<li>Perlトランスパイラのリファクタリング・GearsOSのビルド方法の見直し
<ul>
<li>機能が充実したが複雑度が全体的に増してしまった</li>
</ul>
</li>
<li>PerlトランスパイラのGearsOS本体への組み込み
<ul>
<li>Perlトランスパイラが行っている処理はリンカ、ローダーに近い</li>
<li>OSが機能としてサポートしていてほしい</li>
<li>GearsOS自身で記述したい</li>
</ul>
</li>
<li>xv6への組み込み
<ul>
<li>GearsOSを既存のUNIXの置き換えとして実行したい</li>
</ul>
</li>
<li>ノーマルレベルの記述の純粋関数化、別の言語での定義
<ul>
<li>CbC/Cベースの記述ではノーマルレベルの記述に限界がある</li>
<li>Perlトランスパイラの機能をさらに拡張すると、PerlでCbCコンパイラを実装することに近くなってしまう</li>
</ul>
</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="18" data-paginate="true" data-marpit-pagination="18" data-marpit-pagination-total="18" style="--paginate:true;">
<h1>まとめ</h1>
<ul>
<li>Perlトランスパイラのフレームワークの機能を充実させた</li>
<li>Interfaceシステムを改良した
<ul>
<li>型定義ファイルの導入を行った
<ul>
<li>定義方法に一貫性が出た</li>
</ul>
</li>
<li>Perlトランスパイラで警告を発生させるようになった</li>
</ul>
</li>
<li>従来手書きしていたメタな定義をビルド時に自動的に生成するようにした
<ul>
<li>煩雑な処理や手で実装することによるバグの混入を回避</li>
</ul>
</li>
<li>MetaCodeGearの制御をユーザー側で行えるようにした
<ul>
<li>モデル検査をメタ計算として自在に組み込むことが可能となった</li>
</ul>
</li>
</ul>
</section>
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/*! *****************************************************************************
Copyright (c) Microsoft Corporation.

Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
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