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A comment on Java's records, Lombok's data, and Kotlin's data classes. Parent comment

Re:Java's records, Lombok's data, and Kotlin's data classes by AtNightWeCode on Friday May 07, 2021 @02:49PM (#27079431)
Fields of an object should typically not change. But yes, I had to make a field of a class immutable some time ago. There was a bug and I could not read the code to figure out were the object was changed. Still, caused by bad code. Same object sent around pretty much everywhere.
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Re:Java's records, Lombok's data, and Kotlin's data classes by slver on Friday May 07, 2021 @02:56PM (#27079531)
So even you, the master of great code, wrote bad code. I guess immutability is worth something then.
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Re:Java's records, Lombok's data, and Kotlin's data classes by AtNightWeCode on Friday May 07, 2021 @03:09PM (#27079712)
I did not write the original solution...
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Re:Java's records, Lombok's data, and Kotlin's data classes by the_af on Friday May 07, 2021 @03:44PM (#27080109)
Precisely: you did not write the original solution, which is where immutability shines. It's a code comprehension tool; it gives you guarantees about code you didn't write. That's a huge boon!
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Re:Java's records, Lombok's data, and Kotlin's data classes by AtNightWeCode on Friday May 07, 2021 @04:09PM (#27080334)
There are no guarantees that it is the same object you get so it is pointless.
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Re:Java's records, Lombok's data, and Kotlin's data classes by slver on Saturday May 08, 2021 @07:48AM (#27086259)
No one uses immutables to make sure they “get the same object”. What does that even mean?
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Re:Java's records, Lombok's data, and Kotlin's data classes by slver on Friday May 07, 2021 @03:25PM (#27079911)
So you reckon we only need immutability if two or more people have to work on code. Ok.
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Re:Java's records, Lombok's data, and Kotlin's data classes by AtNightWeCode on Friday May 07, 2021 @06:13PM (#27081440)
You are just too stupid. I hope you are not immutable.
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