x/tools/gopls: working with TinyGo

[adamijak]

package main
import "machine"
import "time"

func main() {
    led := machine.LED
    led.Configure(machine.PinConfig{Mode: machine.PinOutput})
    for {
        led.Low()
        time.Sleep(time.Millisecond * 300)
        led.High()
        time.Sleep(time.Millisecond * 1000)
    }
}

Setting GOPATH="/path/to/go:/usr/lib/tinygo/src" allows me to include machine.
But still I get error Led not declared in package machine. That's caused by first line of board_bluepill.go is set to // +build bluepill. Its not detected as "machine package".

Any syggestions how to fix this to get gopls working with tinygo.

[stamblerre]

You will need to add the following to your configuration:

"gopls": {
    "env": {
        "GOFLAGS": "-tags=bluepill"
    }
}

[adamijak]

Thanks to @stamblerre. That worked perfectly.
###SOLUTION###
export GOPATH="/path/to/go:/path/to/tinygo" in my case /usr/lib/tinygo
Create touch .vim/coc-settings.json in your local tinygo project repository.
Put this code in .vim/coc-setings.json

{
        "go.goplsEnv": {
                "GOFLAGS": "-tags=bluepill"
        }
}