Beautify switch statements

[wppunk]

Description

Add next rules for the switch statement:

• [ ] An empty line before the switch statement
• [ ] An empty line after the switch statement (if it no last)
• [ ] An empty line before the case or default statement (if it no first)
• [ ] No empty line before the break statement.

Tested code

Correct:

function example( $args ) {

    switch ( $args['value_compare'] ) {
        case 'is':
            $where['arg_value'] = "{$fields_table}.value = ''";
            break;

        case 'is_not':
            $where['arg_value'] = "{$fields_table}.value <> ''";
            break;
    }
}

[ihorvorotnov]

When writing the sniff please don't forget about the case with merging branches. I'm not 100% sure whether it'll need any special treatment but worth checking.

switch ( $args['value_compare'] ) {
        case 'is':
            $where['arg_value'] = "{$fields_table}.value = ''";
            break;

        case 'maybe':
        case 'is_not':
            $where['arg_value'] = "{$fields_table}.value <> ''";
            break;
    }