status-go/jail/console/console.go

51 lines
1.2 KiB
Go

package console
import (
"fmt"
"io"
"strings"
"github.com/robertkrimen/otto"
"github.com/status-im/status-go/signal"
)
// Write provides the base function to write data to the underline writer
// for the underline otto vm.
func Write(fn otto.FunctionCall, w io.Writer) otto.Value {
args := convertArgs(fn.ArgumentList)
signal.SendConsole(args)
// Next print out the giving values.
fmt.Fprintf(w, "%s: %s", signal.EventVMConsole, formatForConsole(fn.ArgumentList))
return otto.UndefinedValue()
}
// formatForConsole handles conversion of giving otto.Values into
// string counter part.
func formatForConsole(argumentList []otto.Value) string {
output := []string{}
for _, argument := range argumentList {
output = append(output, fmt.Sprintf("%v", argument))
}
return strings.Join(output, " ")
}
// convertArgs attempts to convert otto.Values into proper go types else
// uses original.
func convertArgs(argumentList []otto.Value) []interface{} {
var items []interface{}
for _, arg := range argumentList {
realArg, err := arg.Export()
if err != nil {
items = append(items, arg)
continue
}
items = append(items, realArg)
}
return items
}