Run go one liners for testing stuff

goeval.go

#!/bin/bash
# depends:
# go get golang.org/x/tools/cmd/goimports
# usage:
# $ goeval 'strings.SplitN("a,b,c", ",", 2)'
# []string{"a", "b,c"}
F="$(mktemp -t goplayXXXX).go"
cat << EOF > "$F"
package main

func printfArgs(args ...interface{}) {
  for i, a := range args {
    fmt.Printf("%#v", a)
    if i < len(args)-1 {
      print(", ")
    }
  }
  println()
}

func main() {
  printfArgs($1)
}
EOF
goimports -w "$F"
go run "$F"
rm "$F"