Go layer - cannot run main in the way VSCode does

[stradicat]

I'm doing a simple exercise in Go, which is comprised of 2 files:

• A main.go file that runs the program
• A deck.go file that holds a custom type deck, and a function called print() to be called from main.

So far, nothing unseen in other programming languages.

main.go:

func main(){
    variable := deck{"element1", "element2"} // if correctly imported, `deck` is a mnemonic type alias for `[]string`
    
    cards.print()
}

deck.go:

import "fmt"

type deck []string // now 'deck' is a type alias for `[]string`
    func (x deck) string {
        for i, card := range d { // for index and element ’card’ in all indexes in slice ‘cards’, print index and element
	fmt.Println(i, card)
     }

|

However, when hitting M-RET x x to invoke go-run-main, I get an error message:

# command line arguments
./main.go:8:11: undefined: deck

This may happen because go-run-main is running go run main.go, without additional files.
Thing is, for a correct output, what should be run is go run main.go deck.go, as apparently VSCode does, since the latter shows the expected output: a printout of elements via the mentioned print() function above.

My question is: how can the go-run-main be customized, so that additional files can be added (or detected) as parameters?

[lebensterben]

you should ask this question in upstream, go-mode

[stradicat]

Sorry, my bad.

[lebensterben]

I may check later.
The quick workaround is to change go-run-args variable.

[lebensterben]

a fix is provided here

microsoft/vscode-go#3096

[stradicat]

I think that did it.

In spacemacs/layers/+lang/go/funcs.el, line 147:

   (format (concat go-run-command " %s %s .")

Changing it to

   (format (concat go-run-command " .")

did the trick.

Thanks for the heads-up!