Files
swift-mirror/test/stdlib/NewString.swift
Dave Abrahams 3f36a4d5e7 Use %target-run-stdlib-swift in more tests
Now that it disables access control, this lit definition applies to many
more tests, where we used to use %target-run-stdlib-swift before access
control came online.

Also, drop -Xfrontend -disable-access-control from a bunch of tests that
don't need it.

Swift SVN r22634
2014-10-09 20:53:07 +00:00

257 lines
7.9 KiB
Swift
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// RUN: %target-run-stdlib-swift | FileCheck %s
import Foundation
import Swift
// ==== Tests =====
func hexAddrVal<T>(x: T) -> String {
return "@0x" + String(UInt64(unsafeBitCast(x, Word.self)), radix: 16)
}
func hexAddr(x: AnyObject?) -> String {
if let owner: AnyObject = x {
if let y = owner as? _StringBuffer._Storage.Storage {
return ".Native\(hexAddrVal(y))"
}
if let y = owner as? NSString {
return ".Cocoa\(hexAddrVal(y))"
}
else {
return "?Uknown?\(hexAddrVal(owner))"
}
}
return "null"
}
func repr(x: NSString) -> String {
return "\(NSStringFromClass(object_getClass(x)))\(hexAddrVal(x)) = \"\(x)\""
}
func repr(x: _StringCore) -> String {
if x.hasContiguousStorage {
if let b = x.nativeBuffer {
var offset = x.elementWidth == 2
? UnsafeMutablePointer(b.start) - x.startUTF16
: UnsafeMutablePointer(b.start) - x.startASCII
return "Contiguous(owner: "
+ "\(hexAddr(x._owner))[\(offset)...\(x.count + offset)]"
+ ", capacity = \(b.capacity))"
}
return "Contiguous(owner: \(hexAddr(x._owner)), count: \(x.count))"
}
else if let b2 = x.cocoaBuffer {
return "Opaque(buffer: \(hexAddr(b2))[0...\(x.count)])"
}
return "?????"
}
func repr(x: String) -> String {
return "String(\(repr(x._core))) = \"\(x)\""
}
// CHECK: Testing
println("Testing...")
//===--------- Native Strings ---------===
// Force the string literal representation into a Native, heap-allocated buffer
var nsb = "🏂☃❅❆❄︎⛄️❄️"
// CHECK-NEXT: Hello, snowy world: 🏂
println("Hello, snowy world: \(nsb)")
// CHECK-NEXT: String(Contiguous(owner: null, count: 11))
println(" \(repr(nsb))")
var empty = String()
// CHECK-NEXT: These are empty: <>
println("These are empty: <\(empty)>")
// CHECK-NEXT: String(Contiguous(owner: null, count: 0))
println(" \(repr(empty))")
//===--------- non-ASCII ---------===
func nonASCII() {
// Cocoa stores non-ASCII in a UTF-16 buffer
// Code units in each character: 2 1 1 1 2 2 2
// Offset of each character: 0 2 3 4 5 7 9 11
var nsUTF16 = NSString(UTF8String: "🏂☃❅❆❄︎⛄️❄️")!
// CHECK-NEXT: has UTF-16: true
println("has UTF-16: \(CFStringGetCharactersPtr(unsafeBitCast(nsUTF16, CFString.self)) != nil)")
// CHECK: --- UTF-16 basic round-tripping ---
println("--- UTF-16 basic round-tripping ---")
// check that no extraneous objects are created
// CHECK-NEXT: __NSCFString@[[utf16address:[x0-9a-f]+]] = "🏂"
println(" \(repr(nsUTF16))")
// CHECK-NEXT: String(Contiguous(owner: .Cocoa@[[utf16address]], count: 11))
var newNSUTF16 = nsUTF16 as String
println(" \(repr(newNSUTF16))")
// CHECK-NEXT: __NSCFString@[[utf16address]] = "🏂"
var nsRoundTripUTF16: NSString = newNSUTF16
println(" \(repr(nsRoundTripUTF16))")
// CHECK: --- UTF-16 slicing ---
println("--- UTF-16 slicing ---")
// Slicing the String does not allocate
// CHECK-NEXT: String(Contiguous(owner: .Cocoa@[[utf16address]], count: 6))
let i2 = advance(newNSUTF16.startIndex, 2)
let i8 = advance(newNSUTF16.startIndex, 6)
println(" \(repr(newNSUTF16[i2..<i8]))")
// Representing a slice as an NSString requires a new object
// CHECK-NOT: NSString@[[utf16address]] = ""
// CHECK-NEXT: _NSContiguousString@[[nsContiguousStringAddress:[x0-9a-f]+]] = ""
var nsSliceUTF16: NSString = newNSUTF16[i2..<i8]
println(" \(repr(nsSliceUTF16))")
// Check that we can recover the original buffer
// CHECK-NEXT: String(Contiguous(owner: .Cocoa@[[utf16address]], count: 6))
println(" \(repr(nsSliceUTF16 as String))")
}
nonASCII()
//===--------- ASCII ---------===
func ascii() {
// Cocoa stores ASCII in a buffer of bytes. This is an important case
// because it doesn't provide a contiguous array of UTF-16, so we'll be
// treating it as an opaque NSString.
var nsASCII = NSString(UTF8String: "foobar")!
// CHECK-NEXT: has UTF-16: false
println("has UTF-16: \(CFStringGetCharactersPtr(unsafeBitCast(nsASCII, CFString.self)) != nil)")
// CHECK: --- ASCII basic round-tripping ---
println("--- ASCII basic round-tripping ---")
// CHECK-NEXT: [[nsstringclass:(__NSCFString|NSTaggedPointerString)]]@[[asciiaddress:[x0-9a-f]+]] = "foobar"
println(" \(repr(nsASCII))")
// CHECK-NEXT NO: String(Opaque(buffer: @[[asciiaddress]][0...6]))
var newNSASCII = nsASCII as String
// println(" \(repr(newNSASCII))")
// CHECK-NEXT: [[nsstringclass]]@[[asciiaddress]] = "foobar"
var nsRoundTripASCII: NSString = newNSASCII
println(" \(repr(nsRoundTripASCII))")
// CHECK: --- ASCII slicing ---
println("--- ASCII slicing ---")
let i3 = advance(newNSASCII.startIndex, 3)
let i6 = advance(newNSASCII.startIndex, 6)
// Slicing the String does not allocate
// XCHECK-NEXT: String(Opaque(buffer: @[[asciiaddress]][3...6]))
println(" \(repr(newNSASCII[i3..<i6]))")
// Representing a slice as an NSString requires a new object
// XCHECK-NOT: NSString@[[asciiaddress]] = "bar"
// XCHECK-NEXT: _NSOpaqueString@[[nsOpaqueSliceAddress:[x0-9a-f]+]] = "bar"
var nsSliceASCII: NSString = newNSASCII[i3..<i6]
println(" \(repr(nsSliceASCII))")
// When round-tripped back to Swift, the _NSOpaqueString object is the new owner
// XCHECK-NEXT: String(Opaque(buffer: @[[nsOpaqueSliceAddress]][0...3]))
println(" \(repr(nsSliceASCII as String))")
}
ascii()
//===-------- Literals --------===
// String literals default to UTF-16.
// CHECK: --- Literals ---
println("--- Literals ---")
// CHECK-NEXT: String(Contiguous(owner: null, count: 6)) = "foobar"
var asciiLiteral: String = "foobar"
println(" \(repr(asciiLiteral))")
// CHECK-NEXT: String(Contiguous(owner: null, count: 11)) = "🏂"
var nonASCIILiteral: String = "🏂☃❅❆❄︎⛄️❄️"
println(" \(repr(nonASCIILiteral))")
// ===------- Appending -------===
// These tests are in NewStringAppending.swift.
// ===---------- Comparison --------===
var s = "ABCDEF"
var s1 = s + "G"
// CHECK-NEXT: true
println("\(s) == \(s) => \(s == s)")
// CHECK-NEXT: false
println("\(s) == \(s1) => \(s == s1)")
// CHECK-NEXT: true
let abcdef: String = "ABCDEF"
println("\(s) == \"\(abcdef)\" => \(s == abcdef)")
let so: String = "so"
let sox: String = "sox"
let tocks: String = "tocks"
// CHECK-NEXT: false
println("so < so => \(so < so)")
// CHECK-NEXT: true
println("so < sox => \(so < sox)")
// CHECK-NEXT: true
println("so < tocks => \(so < tocks)")
// CHECK-NEXT: true
println("sox < tocks => \(sox < tocks)")
let qqq = nonASCIILiteral.hasPrefix("🏂☃")
let rrr = nonASCIILiteral.hasPrefix("")
let zz = (
nonASCIILiteral.hasPrefix("🏂☃"), nonASCIILiteral.hasPrefix(""),
nonASCIILiteral.hasSuffix("⛄️❄️"), nonASCIILiteral.hasSuffix(""))
// CHECK-NEXT: <true, false, true, false>
println("<\(zz.0), \(zz.1), \(zz.2), \(zz.3)>")
// ===---------- Interpolation --------===
// CHECK-NEXT: {{.*}}"interpolated: foobar 🏂 42 3.14 true"
s = "interpolated: \(asciiLiteral) \(nonASCIILiteral) \(42) \(3.14) \(true)"
println("\(repr(s))")
// ===---------- Views --------===
let winter = "🏂☃❅❆❄︎⛄️❄️"
let summer = "school's out!"
func printHexSequence<
S:SequenceType where S.Generator.Element : IntegerType
>(s: S) {
print("[")
var prefix = ""
for x in s {
print(prefix);
print(String(x.toIntMax(), radix: 16))
prefix = " "
}
println("]")
}
// CHECK-NEXT: [f0 9f 8f 82 e2 98 83 e2 9d 85 e2 9d 86 e2 9d 84 ef b8 8e e2 9b 84 ef b8 8f e2 9d 84 ef b8 8f]
printHexSequence(winter.utf8)
// CHECK-NEXT: [d83c dfc2 2603 2745 2746 2744 fe0e 26c4 fe0f 2744 fe0f]
printHexSequence(winter.utf16)
// CHECK-NEXT: [73 63 68 6f 6f 6c 27 73 20 6f 75 74 21]
printHexSequence(summer.utf8)
// CHECK-NEXT: [73 63 68 6f 6f 6c 27 73 20 6f 75 74 21]
printHexSequence(summer.utf16)
// ===---------- Done --------===
// CHECK-NEXT: Done.
println("Done.")