feed/v3scope.go


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package feed

//go:generate stringer -linecomment -type=V3Scope

import (
  "encoding/json"
  "fmt"
)

// CVSS v3 scope.
type V3Scope byte

const (
  V3ScopeChanged V3Scope = iota // CHANGED
  V3ScopeUnchanged // UNCHANGED
)

// Unmarshal CVSS scope from JSON.
func (me *V3Scope) UnmarshalJSON(b []byte) error {
  // decode string, check for error
  var s string
  if err := json.Unmarshal(b, &s); err != nil {
    return err
  }

  // check value
  switch s {
  case "CHANGED":
    *me = V3ScopeChanged
  case "UNCHANGED":
    *me = V3ScopeUnchanged
  default:
    // return error
    return fmt.Errorf("unknown CVSS v3 scope: %s", s)
  }

  // return success
  return nil
}