package volume
 
 import (

 	"errors"

 	"runtime"
 
 	"github.com/docker/docker/api/types/mount"
 )
 
 const (
 	// OSLinux is the same as runtime.GOOS on linux
 	OSLinux = "linux"
 	// OSWindows is the same as runtime.GOOS on windows
 	OSWindows = "windows"
 )
 

 // ErrVolumeTargetIsRoot is returned when the target destination is root.
 // It's used by both LCOW and Linux parsers.
 var ErrVolumeTargetIsRoot = errors.New("invalid specification: destination can't be '/'")
 

 // Parser represents a platform specific parser for mount expressions
 type Parser interface {
 	ParseMountRaw(raw, volumeDriver string) (*MountPoint, error)
 	ParseMountSpec(cfg mount.Mount) (*MountPoint, error)
 	ParseVolumesFrom(spec string) (string, string, error)
 	DefaultPropagationMode() mount.Propagation
 	ConvertTmpfsOptions(opt *mount.TmpfsOptions, readOnly bool) (string, error)
 	DefaultCopyMode() bool
 	ValidateVolumeName(name string) error
 	ReadWrite(mode string) bool
 	IsBackwardCompatible(m *MountPoint) bool
 	HasResource(m *MountPoint, absPath string) bool
 	ValidateTmpfsMountDestination(dest string) error

 	ValidateMountConfig(mt *mount.Mount) error

 }
 
 // NewParser creates a parser for a given container OS, depending on the current host OS (linux on a windows host will resolve to an lcowParser)
 func NewParser(containerOS string) Parser {
 	switch containerOS {
 	case OSWindows:
 		return &windowsParser{}
 	}
 	if runtime.GOOS == OSWindows {
 		return &lcowParser{}
 	}
 	return &linuxParser{}
 }