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我正在尝试为接收散列作为参数的类创建初始化程序。散列是一个{String => Type}散列,并且可以嵌套。键入别名和散列作为方法参数
#file: types.cr
class Types
alias Type = Nil |
Bool |
Int32 |
Int64 |
Float64 |
String |
Array(Type) |
Hash(String, Type)
def initialize(@input : Type)
end
end
input = {"a" => {"b" => {"c" => {"c1" => 1, "c2" => 2, "c3" => true}}}}
s = Types.new(input)
这里运行上面的代码时,我得到的错误:
$ crystal types.cr
Error in types.cr:16: instantiating 'Types:Class#new(Hash(String, Hash(String, Hash(String, Hash(String, Bool | Int32)))))'
s = Types.new(input)
^~~
in types.cr:11: instance variable '@input' of Types must be Types::Type, not Hash(String, Hash(String, Hash(String, Hash(String, Bool | Int32))))
def initialize(@input : Type)
^~~~~~
这可能与水晶运行此代码时,我得到一个错误?我应该如何处理这个问题?
谢谢!