private static object ReadLiteral(TokenCollection stream)
{
if (stream.NextIsEndOfLine)
{
throw new HspLogicalLineException("リテラル：読み込み中にスタックが空になった");
}
//リテラルプリティブ読み込み
LiteralPrimitive token = stream.GetNextToken() as LiteralPrimitive;
if (token == null)
{
throw new HspLogicalLineException("リテラル：不適切な要素を検出");
}
return(new LiteralToken(token));
}
internal LiteralToken(LiteralPrimitive token)
{
this.token = token;
}
