github.com/sleungcy/cli@v7.1.0+incompatible/command/flag/optional_string.go (about)

     1  package flag
     2  
     3  type OptionalString struct {
     4  	IsSet bool
     5  	Value string
     6  }
     7  
     8  func (h *OptionalString) UnmarshalFlag(val string) error {
     9  	h.IsSet = true
    10  	h.Value = val
    11  
    12  	return nil
    13  }