//TODO:まだ実装できてない
private void _try(NakoNodeTry node)
{
int labelId = GetLableId();
NakoILCode label_try = createLABEL("TRY" + labelId.ToString());
NakoILCode label_catch = createLABEL("CATCH" + labelId.ToString());
NakoILCode label_finally = createLABEL("FINALLY" + labelId.ToString());
// (0) Tryを埋め込む
result.Add(label_try);
// (1) 通常実行をコードにする
Write_r(node.nodeTry);
result.Add(createJUMP(label_finally));
// (2) 例外処理
result.Add(label_catch);
//TODO ○○のエラーならば〜☆☆のエラーならば〜への対応
//TODO ○○や☆☆のエラーならばへの対応
if (node.nodeCatch != null)
{
Write_r(node.nodeCatch);
result.Add(createJUMP(label_finally));
NakoILCode c = new NakoILCode ();
c.type = NakoILType.EXCEPTIONTABLE;
c.value = new NakoException (label_try,label_catch,new Exception());
result.Insert (0, c);
}
// (3) 最後に必ず実行する処理
result.Add(label_finally);
if (node.nodeFinally != null)
{
Write_r(node.nodeFinally);
}
}
private bool _try_stmt()
{
if (!Accept(NakoTokenType.TRY)) return false;
tok.MoveNext(); // skip IF
NakoNodeTry trynode = new NakoNodeTry();
NakoToken t = tok.CurrentToken;
while (Accept(NakoTokenType.EOL)) tok.MoveNext();
// TRY
trynode.nodeTry = _scope_or_statement();
while (Accept(NakoTokenType.EOL)) tok.MoveNext();
// CATCH
//TODO ○○のエラーならば〜☆☆のエラーならば〜への対応
//TODO ○○や☆☆のエラーならばへの対応
while (Accept(NakoTokenType.CATCH))
{
//TODO:catchの例外種別を取得
tok.MoveNext();//skip catch
while (Accept(NakoTokenType.EOL)) tok.MoveNext();
//while (calcStack.Count > 0) {
// calcStack.Pop ();
//}
NakoNode nodeCatch = _scope_or_statement();//TODO Add
trynode.nodeCatch = nodeCatch;
}
//TODO set finally
this.parentNode.AddChild(trynode);
this.lastNode = trynode;
return true;
}