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257 lines
7.9 KiB
Swift
257 lines
7.9 KiB
Swift
// RUN: %target-run-stdlib-swift | FileCheck %s
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import Foundation
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import Swift
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// ==== Tests =====
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func hexAddrVal<T>(x: T) -> String {
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return "@0x" + _uint64ToString(UInt64(reinterpretCast(x) as Word), radix: 16)
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}
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func hexAddr(x: AnyObject?) -> String {
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if let owner: AnyObject = x {
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if let y = owner as _StringBuffer._Storage.Storage {
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return ".Native\(hexAddrVal(y))"
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}
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if let y = owner as NSString {
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return ".Cocoa\(hexAddrVal(y))"
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}
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else {
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return "?Uknown?\(hexAddrVal(owner))"
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}
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}
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return "null"
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}
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func repr(x: NSString) -> String {
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return "\(NSStringFromClass(object_getClass(x)))\(hexAddrVal(x)) = \"\(x)\""
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}
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func repr(x: _StringCore) -> String {
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if x.hasContiguousStorage {
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if let b = x.nativeBuffer {
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var offset = x.elementWidth == 2
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? UnsafePointer(b.start) - x.startUTF16
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: UnsafePointer(b.start) - x.startASCII
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return "Contiguous(owner: "
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+ "\(hexAddr(x._owner))[\(offset)...\(x.count + offset)]"
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+ ", capacity = \(b.capacity))"
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}
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return "Contiguous(owner: \(hexAddr(x._owner)), count: \(x.count))"
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}
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else if let b2 = x.cocoaBuffer {
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return "Opaque(buffer: \(hexAddr(b2))[0...\(x.count)])"
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}
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return "?????"
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}
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func repr(x: String) -> String {
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return "String(\(repr(x.core))) = \"\(x)\""
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}
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// CHECK: Testing
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println("Testing...")
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//===--------- Native Strings ---------===
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// Force the string literal representation into a Native, heap-allocated buffer
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var nsb = "🏂☃❅❆❄︎⛄️❄️"
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// CHECK-NEXT: Hello, snowy world: 🏂☃❅❆❄︎⛄️❄️
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println("Hello, snowy world: \(nsb)")
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// CHECK-NEXT: String(Contiguous(owner: null, count: 11))
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println(" \(repr(nsb))")
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var empty = String()
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// CHECK-NEXT: These are empty: <>
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println("These are empty: <\(empty)>")
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// CHECK-NEXT: String(Contiguous(owner: null, count: 0))
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println(" \(repr(empty))")
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//===--------- non-ASCII ---------===
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func nonASCII() {
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// Cocoa stores non-ASCII in a UTF16 buffer
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// Code units in each character: 2 1 1 1 2 2 2
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// Offset of each character: 0 2 3 4 5 7 9 11
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var nsUTF16 = NSString(UTF8String: "🏂☃❅❆❄︎⛄️❄️")
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// CHECK-NEXT: has UTF16: true
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println("has UTF16: \(!CFStringGetCharactersPtr(reinterpretCast(nsUTF16)).isNull())")
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// CHECK: --- UTF16 basic round-tripping ---
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println("--- UTF16 basic round-tripping ---")
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// check that no extraneous objects are created
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// CHECK-NEXT: __NSCFString@[[utf16address:[x0-9a-f]+]] = "🏂☃❅❆❄︎⛄️❄️"
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println(" \(repr(nsUTF16))")
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// CHECK-NEXT: String(Contiguous(owner: .Cocoa@[[utf16address]], count: 11))
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var newNSUTF16 = String(nsUTF16)
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println(" \(repr(newNSUTF16))")
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// CHECK-NEXT: __NSCFString@[[utf16address]] = "🏂☃❅❆❄︎⛄️❄️"
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var nsRoundTripUTF16: NSString = newNSUTF16
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println(" \(repr(nsRoundTripUTF16))")
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// CHECK: --- UTF16 slicing ---
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println("--- UTF16 slicing ---")
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// Slicing the String does not allocate
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// CHECK-NEXT: String(Contiguous(owner: .Cocoa@[[utf16address]], count: 6))
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let i2 = advance(newNSUTF16.startIndex, 2)
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let i8 = advance(newNSUTF16.startIndex, 8)
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println(" \(repr(newNSUTF16[i2..i8]))")
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// Representing a slice as an NSString requires a new object
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// CHECK-NOT: NSString@[[utf16address]] = "❅❆❄︎⛄️"
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// CHECK-NEXT: _NSContiguousString@[[nsContiguousStringAddress:[x0-9a-f]+]] = "❅❆❄︎⛄️"
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var nsSliceUTF16: NSString = newNSUTF16[i2..i8]
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println(" \(repr(nsSliceUTF16))")
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// Check that we can recover the original buffer
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// CHECK-NEXT: String(Contiguous(owner: .Cocoa@[[utf16address]], count: 6))
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println(" \(repr(String(nsSliceUTF16)))")
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}
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nonASCII()
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//===--------- ASCII ---------===
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func ascii() {
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// Cocoa stores ASCII in a buffer of bytes. This is an important case
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// because it doesn't provide a contiguous array of UTF16, so we'll be
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// treating it as an opaque NSString.
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var nsASCII = NSString(UTF8String: "foobar")
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// CHECK-NEXT: has UTF16: false
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println("has UTF16: \(!CFStringGetCharactersPtr(reinterpretCast(nsASCII)).isNull())")
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// CHECK: --- ASCII basic round-tripping ---
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println("--- ASCII basic round-tripping ---")
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// CHECK-NEXT: [[nsstringclass:(__NSCFString|NSTaggedPointerString)]]@[[asciiaddress:[x0-9a-f]+]] = "foobar"
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println(" \(repr(nsASCII))")
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// CHECK-NEXT NO: String(Opaque(buffer: @[[asciiaddress]][0...6]))
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var newNSASCII = String(nsASCII)
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// println(" \(repr(newNSASCII))")
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// CHECK-NEXT: [[nsstringclass]]@[[asciiaddress]] = "foobar"
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var nsRoundTripASCII: NSString = newNSASCII
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println(" \(repr(nsRoundTripASCII))")
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// CHECK: --- ASCII slicing ---
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println("--- ASCII slicing ---")
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let i3 = advance(newNSASCII.startIndex, 3)
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let i6 = advance(newNSASCII.startIndex, 6)
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// Slicing the String does not allocate
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// XCHECK-NEXT: String(Opaque(buffer: @[[asciiaddress]][3...6]))
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println(" \(repr(newNSASCII[i3..i6]))")
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// Representing a slice as an NSString requires a new object
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// XCHECK-NOT: NSString@[[asciiaddress]] = "bar"
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// XCHECK-NEXT: _NSOpaqueString@[[nsOpaqueSliceAddress:[x0-9a-f]+]] = "bar"
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var nsSliceASCII: NSString = newNSASCII[i3..i6]
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println(" \(repr(nsSliceASCII))")
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// When round-tripped back to Swift, the _NSOpaqueString object is the new owner
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// XCHECK-NEXT: String(Opaque(buffer: @[[nsOpaqueSliceAddress]][0...3]))
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println(" \(repr(String(nsSliceASCII)))")
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}
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ascii()
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//===-------- Literals --------===
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// String literals default to UTF-16.
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// CHECK: --- Literals ---
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println("--- Literals ---")
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// CHECK-NEXT: String(Contiguous(owner: null, count: 6)) = "foobar"
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var asciiLiteral: String = "foobar"
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println(" \(repr(asciiLiteral))")
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// CHECK-NEXT: String(Contiguous(owner: null, count: 11)) = "🏂☃❅❆❄︎⛄️❄️"
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var nonASCIILiteral: String = "🏂☃❅❆❄︎⛄️❄️"
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println(" \(repr(nonASCIILiteral))")
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// ===------- Appending -------===
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// These tests are in NewStringAppending.swift.
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// ===---------- Comparison --------===
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var s = "ABCDEF"
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var s1 = s + "G"
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// CHECK-NEXT: true
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println("\(s) == \(s) => \(s == s)")
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// CHECK-NEXT: false
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println("\(s) == \(s1) => \(s == s1)")
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// CHECK-NEXT: true
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let abcdef: String = "ABCDEF"
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println("\(s) == \"\(abcdef)\" => \(s == abcdef)")
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let so: String = "so"
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let sox: String = "sox"
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let tocks: String = "tocks"
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// CHECK-NEXT: false
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println("so < so => \(so < so)")
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// CHECK-NEXT: true
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println("so < sox => \(so < sox)")
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// CHECK-NEXT: true
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println("so < tocks => \(so < tocks)")
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// CHECK-NEXT: true
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println("sox < tocks => \(sox < tocks)")
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let qqq = nonASCIILiteral.hasPrefix("🏂☃")
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let rrr = nonASCIILiteral.hasPrefix("☃")
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let zz = (
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nonASCIILiteral.hasPrefix("🏂☃"), nonASCIILiteral.hasPrefix("☃"),
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nonASCIILiteral.hasSuffix("⛄️❄️"), nonASCIILiteral.hasSuffix("☃"))
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// CHECK-NEXT: <true, false, true, false>
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println("<\(zz.0), \(zz.1), \(zz.2), \(zz.3)>")
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// ===---------- Interpolation --------===
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// CHECK-NEXT: {{.*}}"interpolated: foobar 🏂☃❅❆❄︎⛄️❄️ 42 3.14 true"
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s = "interpolated: \(asciiLiteral) \(nonASCIILiteral) \(42) \(3.14) \(true)"
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println("\(repr(s))")
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// ===---------- Views --------===
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let winter = "🏂☃❅❆❄︎⛄️❄️"
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let summer = "school's out!"
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func printHexSequence<
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S:Sequence where S.GeneratorType.Element : Integer
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>(s: S) {
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print("[")
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var prefix = ""
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for x in s {
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print(prefix);
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print(_int64ToString(x.toIntMax(), radix: 16))
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prefix = " "
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}
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println("]")
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}
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// 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]
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printHexSequence(winter.utf8)
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// CHECK-NEXT: [d83c dfc2 2603 2745 2746 2744 fe0e 26c4 fe0f 2744 fe0f]
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printHexSequence(winter.utf16)
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// CHECK-NEXT: [73 63 68 6f 6f 6c 27 73 20 6f 75 74 21]
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printHexSequence(summer.utf8)
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// CHECK-NEXT: [73 63 68 6f 6f 6c 27 73 20 6f 75 74 21]
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printHexSequence(summer.utf16)
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// ===---------- Done --------===
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// CHECK-NEXT: Done.
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println("Done.")
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