Andrey, Thank you for your help!! I've been analysing the output of my code, and it seems that me and the compiler are "thinking" the same way.
I saw this options when I started learning Go, but I didn't realize it could help me like that. I will read more about escape analysis, thanks for pointing out the correct search term. Best Regards, Bruno Novais 2018-03-04 18:37 GMT-03:00 andrey mirtchovski <mirtchov...@gmail.com>: > Use 'go build -gcflags="-m"' to see what inlining actions the compiler > takes. more here: > https://github.com/golang/go/wiki/CompilerOptimizations# > escape-analysis-and-inlining > > for example this https://play.golang.org/p/QyAauePKbn- will result in: > > $ go build -gcflags='-m' t.go > # command-line-arguments > ./t.go:9:6: can inline NewStuff > ./t.go:14:28: inlining call to NewStuff > ./t.go:14:28: NewStuff() escapes to heap > ./t.go:14:12: main ... argument does not escape > $ > > > multiple -m options may be supplied, although the extra output isn't > especially user-friendly :) > > On Sun, Mar 4, 2018 at 6:57 AM, Bruno Novais <bruno.nov...@synng.com> > wrote: > > Hello Gophers! > > > > As you probably noticed by my question, I'm new to this awesome language > > called Go (coming from C/C++). In C++ I rely a lot on constructor (copy) > > elision. I think Go doesn't have this concept, but I would like to know > what > > happen when I do something like this: > > > > func NewStuff() Stuff { > > return Sutff{} > > } > > > > What will happen in that case? Will it be store on the stack, and then > > copied to the caller function? That will probably be inlined, so: > > > > func NewStuff() Stuff { > > // A lot of pre-processing that won't be inlined. > > > > return Sutff{ > > Value: var1, > > Another: var2, > > Etc: var3, > > } > > } > > > > The returned value will be copied, or the compiler will optimize and > change > > the memory space of the caller function? > > > > Thank you! > > > > -- > > 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. > -- 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.
