Well, that was then, this is now... I'll just note that 10 of 30 feedback posts on the error handling draft feedback wiki have asked for named handlers. Can I add your link there?
On Sun, Sep 2, 2018, 4:33 PM Vlad Didenko <v...@didenko.com> wrote: > Some time ago, after going through a very similar design (really, even had > the catch clause in there), I have arrived at a more generalized version of > it. That contemplation (still available at > https://didenko.github.io/grab/grab_worth_it_0.1.1.html ) was very much > unaccepted here. > > Well, I actually do not remember if it was posted here or in golang-dev. > > On Wednesday, August 29, 2018 at 5:16:42 PM UTC-5, Liam wrote: >> >> Re the Go2 Error Handling proposal >> >> https://go.googlesource.com/proposal/+/master/design/go2draft-error-handling.md >> >> I have posted this feedback >> https://gist.github.com/networkimprov/c6cb3e2dff18d31840f2ef22e79d4a1e >> >> Which contains an alternate handler concept. Please let me know if you >> think this merits its own github.com/golang issue. >> >> A *flag identifier *indicates errors of various types. This also allows >> chaining of handlers with the same flag name. There are options for the >> #flag syntax, e.g. flag!, $flag, @flag, etc. >> >> func f() { >> v, #ret := returnIfError() // #ret can be any type; any non-zero value >> for it triggers its catch >> v, #fat := fatalIfError() // #ret, etc are (probably) not local >> variables >> v, #wrt := writeOnError() >> if v != nice { // new scope >> #fat = MyError{msg:"!nice", ...} >> catch fat error { debug.PrintStack() } // no return/exit; chained >> with next catch fat >> } >> #packageFlag = anotherError() // invokes package-level handler >> >> catch ret error { return ret } // if type is error, type >> name could be optional >> catch fat error { log.Fatal(fat) } >> catch wrt error { con.Write(...); return nil } // return/exit required in >> last handler on chain >> } >> >> catch packageFlag error { ... } // package-level handler; packageFlag is not >> a package variable >> >> -- > You received this message because you are subscribed to a topic in the > Google Groups "golang-nuts" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/golang-nuts/tW97ZxsCvdQ/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > golang-nuts+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
