i am reading gc's code. i just need to know. reflect.TypeOf return a interface, the interface ref to a instance or call data. that instance should be generate by compiler. but i can not find where is the compiler code that generate data about type.
On Friday, August 14, 2020 at 7:00:19 PM UTC+8 xie cui wrote: > the return instance of reflect.TypeOf(some object) should be generate by > compiler, the type info which could be in elf files. i want to known where > compiler generate it. > > On Friday, August 14, 2020 at 5:08:30 PM UTC+8 Volker Dobler wrote: > >> On Friday, 14 August 2020 08:15:03 UTC+2, xie cui wrote: >>> >>> >>> how can i see the code genrate by compiler, and where is the compiler >>> code to generate these code(which file, which function). i am just curious. >> >> >> Can you explain what you mean exactly by "code generated by the compiler"? >> Are you interested in the assembly? https://golang.org/doc/asm ? >> The compiler sources are in >> https://github.com/golang/go/tree/master/src/cmd/compile/internal/gc >> and there is no single file/function which compiles package reflect. >> >> This really sound like a XY problem. >> >> V. >> >> >> >>> On Friday, August 14, 2020 at 1:32:25 PM UTC+8 Volker Dobler wrote: >>> >>>> The value returned by reflect.TypeOf is not computed during >>>> compile time but during run time. The code for package >>>> reflect is generated by the compiler during compile time >>>> but this is not interesting to understand reflection at all as >>>> it is the same code generation like for lets say net/http. >>>> >>>> The source code for package reflect is open source, just >>>> have a look. Note that https://golang.org/pkg/reflect/#TypeOf >>>> links directly to the source code. >>>> >>>> Understanding of reflection does not happen by studing >>>> the compiler and not the implementation of package reflect >>>> but by reading the appropriate blog post on blog.golang.org. >>>> >>>> V. >>>> >>>> >>>> On Friday, 14 August 2020 04:44:57 UTC+2, xie cui wrote: >>>>> >>>>> >>>>> the return of reflect.TypeOf should be generate by compile, i am >>>>> trying to understand it, so i need to know where is code generate it in >>>>> compiler. i need to know compiler parts. and i am curious about what is >>>>> do >>>>> in user code also. please tell me about it. i will be appriciated. >>>>> On Thursday, August 13, 2020 at 10:47:28 PM UTC+8 Jan Mercl wrote: >>>>> >>>>>> On Thu, Aug 13, 2020 at 3:53 PM xie cui <cuiw...@gmail.com> wrote: >>>>>> >>>>>> > ..., i know this type struct in generate by compiler, and i need to >>>>>> know where is this code, and how to generate the struct fields and >>>>>> methods? >>>>>> >>>>>> To avoid the possibility of the XY problem, can you please tell more >>>>>> about the goal of "generating struct fields and methods" and what >>>>>> exactly is meant by that? Some things can be done by the compiler, >>>>>> some in user code and the two feature sets are definitely not the >>>>>> same. >>>>>> >>>>> -- 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/74aa85e3-7eb2-472b-a51b-a780a702487cn%40googlegroups.com.
