为什么FormValidator :: Simple更喜欢使用数组进行哈希？

Question

引自here：

my $result = FormValidator::Simple->check( $query => [
    param1 => ['NOT_BLANK', 'ASCII', ['LENGTH', 2, 5]],
    param2 => ['NOT_BLANK', 'INT'  ],
    mail1  => ['NOT_BLANK', 'EMAIL_LOOSE'],
    mail2  => ['NOT_BLANK', 'EMAIL_LOOSE'],
    { mails => ['mail1', 'mail2'       ] } => ['DUPLICATION'],
    { date  => ['year',  'month', 'day'] } => ['DATE'],
] );

IMO应该是：

my $result = FormValidator::Simple->check( $query => {
    ...
} );

为什么FormValidator::Simple更喜欢使用数组进行哈希？

Answer 1

您是否建议您能够使用

my $result = FormValidator::Simple->check( $query => {
    param1 => ['NOT_BLANK', 'ASCII', ['LENGTH', 2, 5]],
    param2 => ['NOT_BLANK', 'INT'  ],
    mail1  => ['NOT_BLANK', 'EMAIL_LOOSE'],
    mail2  => ['NOT_BLANK', 'EMAIL_LOOSE'],
    { mails => ['mail1', 'mail2'       ] } => ['DUPLICATION'],
    { date  => ['year',  'month', 'day'] } => ['DATE'],
} );

那将通过以下

{
    param1 => ['NOT_BLANK', 'ASCII', ['LENGTH', 2, 5]],
    param2 => ['NOT_BLANK', 'INT'  ],
    mail1  => ['NOT_BLANK', 'EMAIL_LOOSE'],
    mail2  => ['NOT_BLANK', 'EMAIL_LOOSE'],
    'HASH(0x2aaffc)' => ['DUPLICATION'],
    'HASH(0x32aff4)' => ['DATE'],
}

缺少很多信息。