将框架特定常量加载到 MacRuby
我正在编写一个小型 MacRuby 脚本来从搜索查询中获取一些 ABRecord，但我不确定如何访问在 AddressBook 框架的特定头文件中声明的枚举。
我有这个脚本，我正在尝试拥有 kABFirstNameProperty & kABEqual 作为常量引入环境中。但运行脚本时找不到这两个常量。
framework "Cocoa"
framework "AddressBook"
globalAddressBook = ABAddressBook.sharedAddressBook
criteriaElement = ABPerson.searchElementForProperty(kABFirstNameProperty, label:nil, key:nil, value:"Callum", comparison:kABEqual)
I am writing a small MacRuby script to grab some ABRecords from a search query, but I am unsure how to gain access to enums declared in a specific header file for the AddressBook framework.
I have this script and I am trying to have kABFirstNameProperty & kABEqual brought into the environment as constants. But when running the script the two constants cannot be found.
framework "Cocoa"
framework "AddressBook"
globalAddressBook = ABAddressBook.sharedAddressBook
criteriaElement = ABPerson.searchElementForProperty(kABFirstNameProperty, label:nil, key:nil, value:"Callum", comparison:kABEqual)
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在 MacRuby 中（就像 Ruby 一样），常量按照惯例以大写字母开头，因此即使 AddressBook 将其定义为 kABFirstNameProperty，您也需要将其拼写为 KABFirstNameProperty。当然，您的示例中的 KABEqual 常量也是如此。
In MacRuby (just as with Ruby) constants start with a capital letter by convention, so even though AddressBook defines this as kABFirstNameProperty, you need to spell it as KABFirstNameProperty. The same goes for the KABEqual constant in your example, of course.