README.md

V014

The V014 analyzer reports when custom SchemaValidateFunc declarations can be replaced with validation.IntInSlice() or validation.IntNotInSlice().

Flagged Code

func validateExampleThing(v interface{}, k string) (ws []string, errors []error) {
  value := v.(int)

  if value != 1 && value != 2 {
    errors = append(errors, fmt.Errorf("%q must be 1 or 2: %d", k, value))
  }

  return
}

Passing Code

// directly in Schema
ValidateFunc: validation.IntInSlice([]int{1, 2}, false),

// or saving as a variable
var validateExampleThing = validation.IntInSlice([]int{1, 2}, false)

// or replacing the function
func validateExampleThing() schema.SchemaValidateFunc {
  return validation.IntInSlice([]int{1, 2}, false)
}

Ignoring Reports

Singular reports can be ignored by adding the a //lintignore:V014 Go code comment at the end of the offending line or on the line immediately proceding, e.g.

//lintignore:V014
func validateExampleThing(v interface{}, k string) (ws []string, errors []error) {
  value := v.(int)

  if value != 1 && value != 2 {
    errors = append(errors, fmt.Errorf("%q must be 1 or 2: %d", k, value))
  }

  return
}