package errors

import "fmt"

// ReturnCountMismatch error is created when the number of returned values doesn't match the return type.
type ReturnCountMismatch struct {
	Count         int
	ExpectedCount int
}

// Error generates the string representation.
func (err *ReturnCountMismatch) Error() string {
	values := "values"

	if err.Count == 1 {
		values = "value"
	}

	types := "types"

	if err.ExpectedCount == 1 {
		types = "type"
	}

	return fmt.Sprintf("Returns %d %s in a function with %d return %s", err.Count, values, err.ExpectedCount, types)
}