4 ms·

Go's defer works like RAII and does not introduce indentations. f := createFile("/tmp/defer.txt") defer closeFile(f) writeFile(f)

• rcxdude 2y ago
  Defer and context managers are a pale approximation of RAII. They are constrained to lexical scope, as opposed to RAII which works with object lifetimes. And it's the latter case which is much more error prone than 'oops, I forgot to close a file I opened this function'.
• seabrookmx 2y ago
  Even when the syntax does require indentation ("with" in python, "using" in C#) it's still pretty clean IMO.
  • david_allison 2y ago
    Additionally, `using` no longer requires indentation in C# https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/proposals/csharp-8.0/using https://learn.microsoft.com/en-us/dotnet/csharp/language-ref...
    • seabrookmx 2y ago
      TIL! I just recently updated a few small services to C# 12 and there's a bunch of little niceties like this I'm finding (spread operator for instance).
      • pjmlp 2y ago
        Using also no longer requires inheritance from IDispose, it suffices that the type does support Dispose pattern, which is great when coupled with extension methods.
  • HideousKojima 2y ago
    Using no longer requires a new scope block in more recent versions of C#
• valicord 2y ago
  This misses the main benefit of RAII which is that you can't forget to close the file.
  • pjmlp 2y ago
    While not perfect, static analysis takes care of that, in similar veins C and C++ devs reach out to them for the language flaws.