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It is possible to add more immutability in Go. There are many proposals for this: https://github.com/go101/go101/wiki/Go-immutable-value-proposal-list https://g

by tapirl 2y ago

It is possible to add more immutability in Go. There are many proposals for this: https://github.com/go101/go101/wiki/Go-immutable-value-proposal-list https://github.com/go101/go101/wiki/Go-immutable-value-propo.... The main reason nothing happened in this direction is the core team think it is not important enough.

Animats 2y ago
It's tough to retrofit new restrictions to old code. C/c++ code still doesn't have "const" everywhere it could. You have to make the default immutable - write "var" or "mut", not "const" - or it doesn't get used everywhere it should. But that breaks old code.
kiitos 2y ago
It's very clear that the reason these kinds of proposals haven't been accepted has nothing to do with the core team not believing they're important enough, but instead because of the impact that they have on the rest of the language.
- tapirl 2y ago
  What impact in your opinion?
  - kiitos 2y ago
    Immutability is a fundamental property of a language, it's not something that can be bolted on post-facto in a version update. Go as a language doesn't provide immutability.
    - tapirl 2y ago
      If the "for ;;" loop semantics can be bolted on post-facto in a version update, nothing else couldn't. Go provides certain immutability.
      - kiitos 2y ago
        It does not. Believe what you will.
        tapirl 2y ago
        You are not familiar with Go.