I cannot find implementation code of append() or any other builtin functions anywhere? I tried finding the code through godoc and using jump-to-definition feature of IDE's. May be i am looking at wrong places. Could anyone show me the way to see actual implementation?
16
votes
If you want to see the builtin API see golang.org/src/builtin/builtin.go
- Sridhar
@sridhar i did. There is no implementation there.
- Mayank Patel
Yes it's the API. The source will probably be written in a combination of C/C++/assembly which may also be open source but you'll have to look a little harder.
- Sridhar
The source is pretty much all in Go, though part of it is in a hardcore-reading form as that part resides in the code generation package. Details in my answer below.
- Mathias Dolidon
You can check out the Append() example in the following link blog.golang.org/slices
- Rain Lee
1 Answers
12
votes
You may be interested by :
- the code generating bit
appendis in here https://github.com/golang/go/blob/go1.16.7/src/cmd/compile/internal/gc/ssa.go - and
growslice, used by the former, and that lives in here : https://github.com/golang/go/blob/go1.16.7/src/runtime/slice.go
