Golang Building from Source

Jainta Paul — Wed, 21 Jun 2023 18:56:26 +0000

I have been working on a research project which involves Garbage collection mechanism in Golang. We have successfully built Golang from source code. Now, we are trying to add minor modifications in the source code and see if build succeeds or not. As a starter, we have added a log print in mgc.go file in function gcinit at the very beginning

func gcinit() { log.Print("In Function GCINT ") .................................................................................................................... }

After adding the log print, the build fails with the following error:
In Function GCINIT In Function GCINIT shift.go:12:6: (i8 + 1) (8 bits) too small for shift of 8 FAIL FAIL cmd/vet 9.460s FAIL go tool dist: Failed: exit status 1

We have tried to use fmt.printf but no luck so far. We will be happy if someone can help

Go Source Code From AST Parser

Jainta Paul — Wed, 14 Dec 2022 15:20:32 +0000

I am trying to regenerate source code from ast of a go program. After regenerating the source code, I am trying to match that with the original source code. But the regenerated source code gives some extra spaces in some places of the code. The code is given below.
fs := token.NewFileSet() f, err := parser.ParseFile(fs, filename, nil, parser.ParseComments) if err != nil { log.Println(err) } cfg := printer.Config{Mode: printer.RawFormat} err = cfg.Fprint(&buffer, fs, f) if err != nil { log.Println(err) } source_code, err := os.ReadFile(filename) if err != nil { log.Println(err) } buffer_source_code := buffer.String()

Can someone help me what should I do to get the exact source code as the original from a ast?

DEV Community: Jainta Paul

Golang Building from Source

Go Source Code From AST Parser