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package bug
import (
"fmt"
"io"
"strings"
"github.com/MichaelMure/git-bug/util/text"
)
type Label string
func (l Label) String() string {
return string(l)
}
// UnmarshalGQL implements the graphql.Unmarshaler interface
func (l *Label) UnmarshalGQL(v interface{}) error {
_, ok := v.(string)
if !ok {
return fmt.Errorf("labels must be strings")
}
*l = v.(Label)
return nil
}
// MarshalGQL implements the graphql.Marshaler interface
func (l Label) MarshalGQL(w io.Writer) {
w.Write([]byte(`"` + l.String() + `"`))
}
func (l Label) Validate() error {
str := string(l)
if text.Empty(str) {
return fmt.Errorf("empty")
}
if strings.Contains(str, "\n") {
return fmt.Errorf("should be a single line")
}
if !text.Safe(str) {
return fmt.Errorf("not fully printable")
}
return nil
}
|
