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enum_role.go
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/
enum_role.go
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package client
import "fmt"
type roleSet struct {
Assistant Role
User Role
System Role
}
// Roles represents the set of roles that can be used.
var Roles = roleSet{
Assistant: newRole("assistant"),
User: newRole("user"),
System: newRole("system"),
}
// Parse parses the string value and returns a role if one exists.
func (roleSet) Parse(value string) (Role, error) {
role, exists := roles[value]
if !exists {
return Role{}, fmt.Errorf("invalid role %q", value)
}
return role, nil
}
// MustParse parses the string value and returns a role if one exists. If
// an error occurs the function panics.
func (roleSet) MustParse(value string) Role {
role, err := Roles.Parse(value)
if err != nil {
panic(err)
}
return role
}
// =============================================================================
// Set of known roles.
var roles = make(map[string]Role)
// Role represents a role in the system.
type Role struct {
value string
}
func newRole(role string) Role {
r := Role{role}
roles[role] = r
return r
}
// String returns the name of the role.
func (r Role) String() string {
return r.value
}
// UnmarshalText implement the unmarshal interface for JSON conversions.
func (r *Role) UnmarshalText(data []byte) error {
role, err := Roles.Parse(string(data))
if err != nil {
return err
}
r.value = role.value
return nil
}
// MarshalText implement the marshal interface for JSON conversions.
func (r Role) MarshalText() ([]byte, error) {
return []byte(r.value), nil
}
// Equal provides support for the go-cmp package and testing.
func (r Role) Equal(r2 Role) bool {
return r.value == r2.value
}