英文:
Does Crystal have attribute accessor methods like in Ruby?
问题
Crystal编程语言是否有与Ruby的属性访问器方法相对应的功能？更具体地说，Crystal是否有以下等效功能？
attr_accessorattr_readerattr_writer
英文:
Does the Crystal programming language have an equivalent to Ruby's attribute accessor methods? More specifically, does Crystal have equivalents to the following?
attr_accessorattr_readerattr_writer
?
答案1
得分: 7
是的，它们被定义为宏。
基本上：
| ruby | crystal |
|---|---|
| attr_accessor | property |
| attr_reader | getter |
| attr_writer | setter |
示例
class Person
property name
end
等同于
class Person
def name=(@name)
end
def name
@name
end
end
更多详情请参阅参考文档。
英文:
Yes, they're defined as macro.
Basically:
| ruby | crystal |
|---|---|
| attr_accessor | property |
| attr_reader | getter |
| attr_writer | setter |
Example
class Person
property name
end
is equal to
class Person
def name=(@name)
end
def name
@name
end
end
For more details see the Reference
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