1import Foundation 2 3public enum TokenKind: Codable, Equatable, Sendable { 4 case eof 5} 6 7public enum SyntaxTreeKind: Codable, Equatable, Sendable { 8 case error 9} 10 11public struct TokenMetadata: Codable, Equatable, Sendable { 12} 13 14public struct SyntaxTreeMetadata: Codable, Equatable, Sendable { 15 16}