CodaFi

struct State0 {}; struct State1 {}; struct FinalState {} /*States*/
struct Symbol {}; struct Blank {} /*Symbols*/
struct Left {}; struct Right {} /*Directions*/
struct EndOfTape {} /*End of Tape*/

struct Transition<StartState, StartHead, EndState, EndHead, Direction> {
  static func transitionOne()      -> Transition<State0, Blank, State1, Symbol, Left>  { fatalError() }
  static func transitionTwo()      -> Transition<State1, Blank, State0, Symbol, Right> { fatalError() }
  static func transitionThree<State>() -> Transition<State, Symbol, FinalState, Symbol, Left>  { fatalError() }
}

CodaFi

#!/bin/sh

set -e

if [ -z "${SWIFTPM_CONFIGURATION}" ]; then
  SWIFTPM_CONFIGURATION=.bootstrap/lib/swift/pm/4
fi

if [ -z "${CONFIGURATION}" ]; then
    CONFIGURATION=release

CodaFi

extension Array {
	mutating func merge <S: SequenceType where S.Generator.Element == Element> (seq: S) {
		var gen = seq.generate()
		while let (key : Element, value : Element) = gen.next() {
			self[0] = value
		}
	}
}
 
var arr = [0]

CodaFi

// cc lambda.m -o lambda -framework Foundation -fobjc-arc && ./lambda
#import <Foundation/Foundation.h>

// use it like lambda(…args…)(…return value…)
#define lambda(...) \
^ (__VA_ARGS__) _lambda_body

#define _lambda_body(...) \
{ return __VA_ARGS__; }