codecrafters-shell-go/app/core/core.go

package core

import "io"
import "os"

type ExitStatus uint16

type Context struct {
	Stdout io.Writer
	Stderr io.Writer
	Stdin  io.Reader
}

func MakeContext() Context {
	return Context{
		Stdout: os.Stdout,
		Stderr: os.Stderr,
		Stdin:  os.Stdin,
	}
}

type ActionResult struct {
	Code       ActionResultCode
	ExitStatus ExitStatus
}
type ActionResultCode uint8

const (
	ActionResultCodeNoop ActionResultCode = iota
	ActionResultCodeBuiltinCommand
	ActionResultCodeExternalCommand
	ActionResultCodeExit
)