[英]How do I print a custom description of a Swift struct while debugging, and nothing else?
说我有一个这样的结构:
struct MyStruct: CustomStringConvertible {
let myInt: Int
let myString: String
var description: String {
return "my int is \(myInt),\nand my string is \"\(myString)\""
}
}
从代码中打印描述可以正常工作。
let myStruct = MyStruct(myInt: 3, myString: "hello")
print(myStruct)
这导致
my int is 3,
and my string is "hello"
当我想从调试器打印myStruct
的描述时出现问题。 po myStruct
结果在
▿ my int is 3,
and my string is "hello"
- myInt : 3
- myString : "hello"
显式打印其描述也无济于事,因为po myStruct.description
导致
"my int is 3,\nand my string is \"hello\""
我认为这可能与CustomDebugStringConvertible
,所以我添加了以下代码:
extension MyStruct: CustomDebugStringConvertible {
var debugDescription: String {
return description
}
}
不幸的是,这根本不会改变任何结果。
有没有办法
my int is 3,
and my string is "hello"
在调试时从命令行打印?
(lldb) expression print(myStruct)
my int is 3,
and my string is "hello"
您可以定义自己的“命令”
(lldb) help command
The following subcommands are supported:
alias -- Allow users to define their own debugger command
abbreviations. This command takes 'raw' input (no need to
quote stuff).
delete -- Allow the user to delete user-defined regular expression,
python or multi-word commands.
history -- Dump the history of commands in this session.
regex -- Allow the user to create a regular expression command.
script -- A set of commands for managing or customizing script commands.
source -- Read in debugger commands from the file <filename> and execute
them.
unalias -- Allow the user to remove/delete a user-defined command
abbreviation.
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.