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cfg.swift
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587 lines (490 loc) · 9.1 KB
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var topLevelDecl : Int = 0
0
topLevelDecl + 1
func returnZero() -> Int { return 0 }
returnZero()
Double(topLevelDecl)
enum MyError: Error {
case error1, error2
case error3(withParam: Int)
}
func isZero(x : Int) -> Bool { return x == 0 }
func mightThrow(x : Int) throws -> Void {
guard x >= 0 else {
throw MyError.error1
}
guard x <= 0 else {
throw MyError.error3(withParam: x + 1)
}
}
func tryCatch(x : Int) -> Int {
do {
try mightThrow(x: 0)
print("Did not throw.")
try! mightThrow(x: 0)
print("Still did not throw.")
} catch MyError.error1 , MyError.error2 where isZero(x: x) {
return 0
} catch MyError.error3(let withParam) {
return withParam
} catch is MyError {
print("MyError")
} catch {
print("Unknown error \(error)")
}
return 0
}
func createClosure1(s : String) -> () -> String {
return {
return s + ""
}
}
func createClosure2(x : Int) -> (_ : Int) -> Int {
func f(y : Int) -> Int {
return x + y
}
return f
}
func createClosure3(x : Int) -> (_ : Int) -> Int {
return {
(y) -> Int in x + y
}
}
func callClosures() {
var x1 = createClosure1(s: "")()
var x2 = createClosure2(x: 0)(10)
var x3 = createClosure3(x: 0)(10)
}
func maybeParseInt(s : String) -> Int? {
var n : Int? = Int(s)
return n
}
func forceAndBackToOptional() -> Int? {
var nBang = maybeParseInt(s:"42")!
var n = maybeParseInt(s:"42")
return nBang + n!
}
func testInOut() -> Int {
var temp = 10
func add(a: inout Int) {
a = a + 1
}
func addOptional(a: inout Int?) {
a = nil
}
add(a:&temp)
var tempOptional : Int? = 10
addOptional(a:&tempOptional)
return temp + tempOptional!
}
class C {
let myInt: Int
init(n: Int) {
myInt = n
}
func getMyInt() -> Int {
return myInt
}
}
func testMemberRef(param : C, inoutParam : inout C, opt : C?) {
let c = C(n: 42)
let n1 = c.myInt
let n2 = c.self.myInt
let n3 = c.getMyInt()
let n4 = c.self.getMyInt()
let n5 = param.myInt
let n6 = param.self.myInt
let n7 = param.getMyInt()
let n8 = param.self.getMyInt()
let n9 = inoutParam.myInt
let n10 = inoutParam.self.myInt
let n11 = inoutParam.getMyInt()
let n12 = inoutParam.self.getMyInt()
let n13 = opt!.myInt
let n14 = opt!.self.myInt
let n15 = opt!.getMyInt()
let n16 = opt!.self.getMyInt()
let n17 = opt?.myInt
let n18 = opt?.self.myInt
let n19 = opt?.getMyInt()
let n20 = opt?.self.getMyInt()
}
func patterns(x : Int) -> Bool {
for _ in 0...10 { }
switch x {
case 0, 1:
return true
return true
case x where (x >= 2) && x < 5:
return true
default:
return false
}
var obj : AnyObject = C(n: x)
if obj is C {
return true
}
let xOptional: Int? = x
if case .some(let x) = xOptional {
return x == 0
} else {
return false
}
}
func testDefer(x : inout Int) {
// Will print 1, 2, 3, 4
defer {
print("4")
}
defer {
print("3")
}
defer {
print("1")
defer {
print("2")
}
}
}
func m1(x : Int) {
if x > 2 {
print("x is greater than 2")
}
else if x <= 2 && x > 0 && !(x == 5) {
print("x is 1")
}
else {
print("I can't guess the number")
}
}
func m2(b : Bool) -> Int {
if b {
return 0
}
return 1
}
func m3(x : inout Int) -> Int {
if x < 0 {
x = -x
if x > 10 {
x = x - 1
}
}
return x
}
func m4 (b1 : Bool, b2 : Bool, b3 : Bool) -> String {
return (b1 ? b2 : b3) ? "b2 || b3" : "!b2 || !b3"
}
func conversionsInSplitEntry (b : Bool) -> String {
if b ? (true) : Bool(false) {
return "b"
}
else {
return "!b"
}
}
func constant_condition() {
if !true {
print("Impossible")
}
}
func empty_else(b : Bool) {
if b {
print("true")
}
else {}
print("done")
}
func disjunct (b1 : Bool, b2 : Bool) {
if (b1 || b2) {
print("b1 or b2")
}
}
func binaryExprs(a : Int, b : Int) {
let c = a + b
let d = a - b
let e = a * b
let f = a / b
let g = a % b
let h = a & b
let i = a | b
let j = a ^ b
let k = a << b
let l = a >> b
let o = a == b
let p = a != b
let q = a < b
let r = a <= b
let s = a > b
let t = a >= b
}
func interpolatedString(x : Int, y : Int) -> String {
return "\(x) + \(y) is equal to \(x + y) and here is a zero: \(returnZero())"
}
func testSubscriptExpr() -> (Int, Int, Int, Int, Int) {
var a = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
a[0] = 0
a[1] += 1
a[2] -= 1
a[3] *= 1
a[4] /= 1
a[5] %= 1
a[6] &= 1
a[7] |= 1
a[8] ^= 1
a[9] <<= 1
a[10] >>= 1
var tupleWithA = (a[0], a[1], a[2], a[3], a[4])
var b = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
b[0] = a[10]
b[1] = b[0] + 1
b[2] = b[1] - 1
b[3] = b[2] * 1
b[4] = b[3] / 1
b[5] = b[4] % 1
b[6] = b[5] & 1
b[7] = b[6] | 1
b[8] = b[7] ^ 1
b[9] = b[8] << 1
b[10] = b[9] >> 1
let (a1, a2, a3, a4, a5) = tupleWithA
return (a1 + b[0], a2 + b[1], a3 + b[2], a4 + b[3], a5 + b[4])
}
func loop1(x : inout Int) {
while x >= 0 {
print(x)
x -= 1
}
}
func loop2(x : inout Int) {
while x >= 0 {
print(x)
x -= 1
if x > 100 {
break
}
else if x > 50 {
continue
}
print("Iter")
}
print("Done")
}
func labeledLoop(x : inout Int) {
outer: while x >= 0 {
inner: while x >= 0 {
print(x)
x -= 1
if x > 100 {
break outer
}
else if x > 50 {
continue inner
}
print("Iter")
}
print("Done")
}
}
func testRepeat(x : inout Int) {
repeat {
print(x)
x -= 1
} while x >= 0
}
func loop_with_identity_expr() {
var x = 0
while(x < 10) {
x += 1
}
}
class OptionalC {
let c: C?
init(arg: C?) {
c = arg
}
func getOptional() -> C? {
return c
}
}
func testOptional(c : OptionalC?) -> Int? {
return c?.getOptional()?.getMyInt()
}
func testCapture(x : Int, y : Int) -> () -> Int {
return { [z = x + y, t = "literal"] in
return z
}
}
func testTupleElement(t : (a: Int, Int, c: Int)) -> Int {
return t.a + t.1 + t.c + (1, 2, 3).0
}
class Derived : C {
init() {
super.init(n: 0)
}
}
func doWithoutCatch(x : Int) throws -> Int {
do {
try mightThrow(x: 0)
print("Did not throw.")
try! mightThrow(x: 0)
print("Still did not throw.")
}
return 0
}
class Structors {
var field: Int
init() {
field = 10
}
deinit {
field = 0
}
}
func dictionaryLiteral(x: Int, y: Int) -> [String: Int] {
return ["x": x, "y": y]
}
func localDeclarations() -> Int {
class MyLocalClass {
var x: Int
init() {
x = 10
}
}
struct MyLocalStruct {
var x: Int
init() {
x = 10
}
}
enum MyLocalEnum {
case A
case B
}
var myLocalVar : Int;
// Error: declaration is only valid at file scope
// extension Int {
// func myExtensionMethod() -> Int {
// return self
// }
// }
// protocol 'MyProtocol' cannot be nested inside another declaration
// protocol MyProtocol {
// func myMethod()
// }
return 0
}
struct B {
var x : Int
}
struct A {
var b : B
var bs : [B]
var mayB : B?
}
func test(a : A) {
var kpGet_b_x = \A.b.x
var kpGet_bs_0_x = \A.bs[0].x
var kpGet_mayB_force_x = \A.mayB!.x
var kpGet_mayB_x = \A.mayB?.x
var apply_kpGet_b_x = a[keyPath: kpGet_b_x]
var apply_kpGet_bs_0_x = a[keyPath: kpGet_bs_0_x]
var apply_kpGet_mayB_force_x = a[keyPath: kpGet_mayB_force_x]
var apply_kpGet_mayB_x = a[keyPath: kpGet_mayB_x]
}
func testIfConfig() {
#if FOO
1
2
#else
3
4
#endif
5
#if BAR
6
7
#endif
8
#if FOO
9
10
#elseif true
11
12
#endif
13
}
func testAvailable() -> Int {
var x = 0;
if #available(macOS 10, *) {
x += 1
}
if #available(macOS 10.13, *) {
x += 1
}
if #unavailable(iOS 10, watchOS 10, macOS 10) {
x += 1
}
guard #available(macOS 12, *) else {
x += 1
}
if #available(macOS 12, *), #available(iOS 12, *) {
x += 1
}
return x
}
func testAsyncFor () async {
var stream = AsyncStream(Int.self, bufferingPolicy: .bufferingNewest(5), {
continuation in
Task.detached {
for i in 1...100 {
continuation.yield(i)
}
continuation.finish()
}
})
for try await i in stream {
print(i)
}
}
func testNilCoalescing(x: Int?) -> Int {
return x ?? 0
}
func testNilCoalescing2(x: Bool?) -> Int {
if x ?? false {
return 1
} else {
return 0
}
}
func usesAutoclosure(_ expr: @autoclosure () -> Int) -> Int {
return expr()
}
func autoclosureTest() {
usesAutoclosure(1)
}
// ---
protocol MyProtocol {
func source() -> Int
}
class MyProcotolImpl : MyProtocol {
func source() -> Int { return 0 }
}
func getMyProtocol() -> MyProtocol { return MyProcotolImpl() }
func getMyProtocolImpl() -> MyProcotolImpl { return MyProcotolImpl() }
func sink(arg: Int) { }
func testOpenExistentialExpr(x: MyProtocol, y: MyProcotolImpl) {
sink(arg: x.source())
sink(arg: y.source())
sink(arg: getMyProtocol().source())
sink(arg: getMyProtocolImpl().source())
}
func singleStmtExpr(_ x: Int) {
let a = switch x {
case 0..<5: 1
default: 2
}
let b = if (x < 42) { 1 } else { 2 }
}
// ---