I observed that the regexp package has a pool of onePassMachine objects, which I believe exist to avoid allocation due to heap escape caused by calling through the 'inputs' interface.
I expected that, using generics, I can replace that interface with a type parameter, and hence do away with the need for the pool. My trial implementation is here: https://github.com/golang/go/compare/master...bboreham:generic-exec But it does not succeed: the generic parameter escapes to the heap. Compiler says: regexp/exec.go:391:37: parameter i leaks to {heap} with derefs=0: regexp/exec.go:391:37: flow: {heap} = i: regexp/exec.go:391:37: from unsafe.Pointer(i) (interface-converted) at regexp/exec.go:412:14 regexp/exec.go:391:37: from (<node EFACE>).step(pos) (call parameter) at regexp/exec.go:412:19 Am I holding it wrong? Why does i get "interface-converted" ? Thanks, Bryan -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/14c36114-e7e2-41fd-8276-3e72ae9ee231n%40googlegroups.com.
