import Foundation

public protocol TreeKindType: Equatable, Sendable {
	static var error: Self { get }
}

public protocol TokenKindType: Equatable, Sendable {
	static var eof: Self { get }
}

public protocol Language {
	associatedtype TokenKind: TokenKindType
	associatedtype TreeKind: TreeKindType
	associatedtype TokenMetadata: Sendable, Equatable
	associatedtype TreeMetadata: Sendable, Equatable
}