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@JacobMao
JacobMao authored Oct 4, 2018
2 parents dfe4d5f + ef05d6e commit 4e65573
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1 change: 1 addition & 0 deletions .flake8
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Expand Up @@ -23,6 +23,7 @@ filename = *.py,
./utils/recursive-lipo,
./utils/round-trip-syntax-test,
./utils/rth,
./utils/run-remote,
./utils/run-test,
./utils/scale-test,
./utils/submit-benchmark-results,
Expand Down
1 change: 1 addition & 0 deletions .gitignore
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Expand Up @@ -53,3 +53,4 @@ compile_commands.json
SortedCFDatabase.def
htmlcov
.coverage
/benchmark/scripts/Benchmark_Driverc
85 changes: 83 additions & 2 deletions CHANGELOG.md
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Expand Up @@ -24,6 +24,70 @@ CHANGELOG
Swift 5.0
---------

* [SR-7251][]:

In Swift 5 mode, attempting to declare a static property with the same name as a
nested type is now always correctly rejected. Previously, it was possible to
perform such a redeclaration in an extension of a generic type.

For example:
```swift
struct Foo<T> {}
extension Foo {
struct i {}

// compiler error: Invalid redeclaration of 'i'
// (prior to Swift 5, this did not produce an error)
static var i: Int { return 0 }
}
```

* [SR-4248][]:

In Swift 5 mode, when casting an optional value to a generic placeholder type,
the compiler will be more conservative with the unwrapping of the value. The
result of such a cast now more closely matches the result you would get in a
non-generic context.

For example:
```swift
func forceCast<U>(_ value: Any?, to type: U.Type) -> U {
return value as! U
}

let value: Any? = 42
print(forceCast(value, to: Any.self))
// prints: Optional(42)
// (prior to Swift 5, this would print: 42)

print(value as! Any)
// prints: Optional(42)
```

* [SE-0227][]:

Key paths now support the `\.self` keypath, which is a `WritableKeyPath`
that refers to its entire input value:

```swift
let id = \Int.self

var x = 2
print(x[keyPath: id]) // prints 2
x[keyPath: id] = 3
print(x[keyPath: id]) // prints 3
```

* [SE-0214][]:

Renamed the `DictionaryLiteral` type to `KeyValuePairs`.
A typealias preserves the old name for compatibility.

* [SR-2608][]

Default arguments are now printed in SourceKit-generated interfaces for Swift
modules, instead of just using a placeholder `default`.

* Notable bug fix: unowned and unowned(unsafe) variables now support optional
types.

Expand Down Expand Up @@ -62,6 +126,8 @@ Swift 5.0
Swift 4.2
---------

### 2018-09-17 (Xcode 10.0)

* [SE-0194][]

The new CaseIterable protocol describes types which have a static
Expand Down Expand Up @@ -267,8 +333,6 @@ Swift 4.2
conditionally conforms to `P`, will succeed when the conditional
requirements are met.

**Add new entries to the top of this section, not here!**

Swift 4.1
---------

Expand Down Expand Up @@ -7142,6 +7206,20 @@ Swift 1.0
[SE-0210]: <https://github.com/apple/swift-evolution/blob/master/proposals/0210-key-path-offset.md>
[SE-0211]: <https://github.com/apple/swift-evolution/blob/master/proposals/0211-unicode-scalar-properties.md>
[SE-0212]: <https://github.com/apple/swift-evolution/blob/master/proposals/0212-compiler-version-directive.md>
[SE-0213]: <https://github.com/apple/swift-evolution/blob/master/proposals/0213-literal-init-via-coercion.md>
[SE-0214]: <https://github.com/apple/swift-evolution/blob/master/proposals/0214-DictionaryLiteral.md>
[SE-0215]: <https://github.com/apple/swift-evolution/blob/master/proposals/0215-conform-never-to-hashable-and-equatable.md>
[SE-0216]: <https://github.com/apple/swift-evolution/blob/master/proposals/0216-dynamic-callable.md>
[SE-0217]: <https://github.com/apple/swift-evolution/blob/master/proposals/0217-bangbang.md>
[SE-0218]: <https://github.com/apple/swift-evolution/blob/master/proposals/0218-introduce-compact-map-values.md>
[SE-0219]: <https://github.com/apple/swift-evolution/blob/master/proposals/0219-package-manager-dependency-mirroring.md>
[SE-0220]: <https://github.com/apple/swift-evolution/blob/master/proposals/0220-count-where.md>
[SE-0221]: <https://github.com/apple/swift-evolution/blob/master/proposals/0221-character-properties.md>
[SE-0222]: <https://github.com/apple/swift-evolution/blob/master/proposals/0222-lazy-compactmap-sequence.md>
[SE-0223]: <https://github.com/apple/swift-evolution/blob/master/proposals/0223-array-uninitialized-initializer.md>
[SE-0224]: <https://github.com/apple/swift-evolution/blob/master/proposals/0224-ifswift-lessthan-operator.md>
[SE-0225]: <https://github.com/apple/swift-evolution/blob/master/proposals/0225-binaryinteger-iseven-isodd-ismultiple.md>
[SE-0226]: <https://github.com/apple/swift-evolution/blob/master/proposals/0226-package-manager-target-based-dep-resolution.md>

[SR-106]: <https://bugs.swift.org/browse/SR-106>
[SR-419]: <https://bugs.swift.org/browse/SR-419>
Expand All @@ -7151,3 +7229,6 @@ Swift 1.0
[SR-2131]: <https://bugs.swift.org/browse/SR-2131>
[SR-2388]: <https://bugs.swift.org/browse/SR-2388>
[SR-2394]: <https://bugs.swift.org/browse/SR-2394>
[SR-2608]: <https://bugs.swift.org/browse/SR-2608>
[SR-4248]: <https://bugs.swift.org/browse/SR-4248>
[SR-7251]: <https://bugs.swift.org/browse/SR-7251>
52 changes: 32 additions & 20 deletions CMakeLists.txt
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Expand Up @@ -187,8 +187,6 @@ set(SWIFT_ANDROID_NDK_PATH "" CACHE STRING
"Path to the directory that contains the Android NDK tools that are executable on the build machine")
set(SWIFT_ANDROID_NDK_GCC_VERSION "" CACHE STRING
"The GCC version to use when building for Android. Currently only 4.9 is supported.")
set(SWIFT_ANDROID_SDK_PATH "" CACHE STRING
"Path to the directory that contains the Android SDK tools that will be passed to the swiftc frontend")
set(SWIFT_ANDROID_DEPLOY_DEVICE_PATH "" CACHE STRING
"Path on an Android device where build products will be pushed. These are used when running the test suite against the device")

Expand Down Expand Up @@ -354,7 +352,7 @@ endfunction()
# Print out path and version of any installed commands.
# We migth be using the wrong version of a command, so record them all.
function(print_versions)
find_version("cmake" "--version" TRUE)
find_version("${CMAKE_COMMAND}" "--version" TRUE)

message(STATUS "Finding version for: ${CMAKE_COMMAND}")
message(STATUS "Found version: ${CMAKE_VERSION}")
Expand Down Expand Up @@ -594,7 +592,7 @@ else()
set(SWIFT_HOST_VARIANT_ARCH_default "x86_64")
elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "IA64")
set(SWIFT_HOST_VARIANT_ARCH_default "itanium")
elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "x86")
elseif("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "(x86|i686)")
set(SWIFT_HOST_VARIANT_ARCH_default "i686")
else()
message(FATAL_ERROR "Unrecognized architecture on host system: ${CMAKE_SYSTEM_PROCESSOR}")
Expand Down Expand Up @@ -637,7 +635,6 @@ endif()
# To fix it, we would need to append the architecture to the SDKs,
# for example: 'OSX-x86_64;IOS-armv7;...etc'.
# We could easily do that - we have all of that information in build-script-impl.
# Also, we would need to be provided with the sysroot for each SDK (see SWIFT_ANDROID_SDK_PATH/SWIFT_SDK_ANDROID_PATH).
# Darwin targets cheat and use `xcrun`.

if("${SWIFT_HOST_VARIANT_SDK}" STREQUAL "LINUX")
Expand All @@ -650,6 +647,8 @@ if("${SWIFT_HOST_VARIANT_SDK}" STREQUAL "LINUX")
if("${SWIFT_HOST_TRIPLE}" STREQUAL "")
if("${SWIFT_HOST_VARIANT_ARCH}" STREQUAL "x86_64")
set(SWIFT_HOST_TRIPLE "x86_64-unknown-linux-gnu")
elseif("${SWIFT_HOST_VARIANT_ARCH}" STREQUAL "i686")
set(SWIFT_HOST_TRIPLE "i686-unknown-linux-gnu")
elseif("${SWIFT_HOST_VARIANT_ARCH}" STREQUAL "aarch64")
set(SWIFT_HOST_TRIPLE "aarch64-unknown-linux-gnu")
elseif("${SWIFT_HOST_VARIANT_ARCH}" MATCHES "(powerpc64|powerpc64le)")
Expand Down Expand Up @@ -726,7 +725,7 @@ elseif("${SWIFT_HOST_VARIANT_SDK}" MATCHES "(OSX|IOS*|TVOS*|WATCHOS*)")
COMMAND "xcodebuild" "-version"
OUTPUT_VARIABLE xcode_version
OUTPUT_STRIP_TRAILING_WHITESPACE)
string(REPLACE "\n" ", " xcode_version ${xcode_version})
string(REPLACE "\n" ", " xcode_version "${xcode_version}")
message(STATUS "${xcode_version}")
message(STATUS "")

Expand Down Expand Up @@ -760,22 +759,29 @@ endif()
# Should we cross-compile the standard library for Android?
is_sdk_requested(ANDROID swift_build_android)
if(swift_build_android AND NOT "${SWIFT_ANDROID_NDK_PATH}" STREQUAL "")

configure_sdk_unix(ANDROID "Android" "android" "android" "armv7" "armv7-none-linux-androideabi" "${SWIFT_ANDROID_SDK_PATH}")

if (NOT ("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin" OR "${CMAKE_SYSTEM_NAME}" STREQUAL "Linux"))
if (NOT ("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Darwin" OR "${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Linux"))
message(FATAL_ERROR "A Darwin or Linux host is required to build the Swift runtime for Android")
elseif(("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin" AND NOT swift_build_osx) OR
("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux" AND NOT swift_build_linux))
endif()

if(("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin" AND NOT swift_build_osx) OR
("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux" AND NOT swift_build_linux))
set(SWIFT_PRIMARY_VARIANT_SDK_default "ANDROID")
set(SWIFT_PRIMARY_VARIANT_ARCH_default "armv7")
endif()

if("${SWIFT_SDK_ANDROID_ARCHITECTURES}" STREQUAL "")
set(SWIFT_SDK_ANDROID_ARCHITECTURES armv7;aarch)
endif()
configure_sdk_unix(ANDROID "Android" "android" "android" "${SWIFT_SDK_ANDROID_ARCHITECTURES}" "" "")
endif()

# Should we cross-compile the standard library for Windows?
is_sdk_requested(WINDOWS swift_build_windows)
if(swift_build_windows AND NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
configure_sdk_windows(WINDOWS "Windows" "msvc" "aarch64;armv7;i686;x86_64")
if("${SWIFT_SDK_WINDOWS_ARCHITECTURES}" STREQUAL "")
set(SWIFT_SDK_WINDOWS_ARCHITECTURES aarch64;armv7;i686;x86_64)
endif()
configure_sdk_windows(WINDOWS "Windows" "msvc" "${SWIFT_SDK_WINDOWS_ARCHITECTURES}")
endif()

if("${SWIFT_SDKS}" STREQUAL "")
Expand Down Expand Up @@ -860,17 +866,18 @@ function(swift_icu_variables_set sdk arch result)
endif()
endfunction()

# ICU is provided through CoreFoundation on Darwin. On other hosts, assume that
# we are compiling for the build as the host. In such a case, if the ICU
# ICU is provided through CoreFoundation on Darwin. On other hosts, if the ICU
# unicode and i18n include and library paths are not defined, perform a standard
# package lookup. Otherwise, rely on the paths specified by the user. These
# need to be defined when cross-compiling.
if(NOT CMAKE_SYSTEM_NAME STREQUAL "Darwin")
swift_icu_variables_set("${SWIFT_HOST_VARIANT_SDK_default}"
"${SWIFT_HOST_VARIANT_ARCH_default}"
ICU_CONFIGURED)
if("${SWIFT_PATH_TO_LIBICU_BUILD}" STREQUAL "" AND NOT ${ICU_CONFIGURED})
find_package(ICU REQUIRED COMPONENTS uc i18n)
if(SWIFT_BUILD_STDLIB OR SWIFT_BUILD_SDK_OVERLAY)
swift_icu_variables_set("${SWIFT_PRIMARY_VARIANT_SDK}"
"${SWIFT_PRIMARY_VARIANT_ARCH}"
ICU_CONFIGURED)
if("${SWIFT_PATH_TO_LIBICU_BUILD}" STREQUAL "" AND NOT ${ICU_CONFIGURED})
find_package(ICU REQUIRED COMPONENTS uc i18n)
endif()
endif()
endif()

Expand Down Expand Up @@ -898,6 +905,11 @@ cmake_pop_check_state()

check_symbol_exists(wait4 "sys/wait.h" HAVE_WAIT4)

check_symbol_exists(proc_pid_rusage "libproc.h" HAVE_PROC_PID_RUSAGE)
if(HAVE_PROC_PID_RUSAGE)
list(APPEND CMAKE_REQUIRED_LIBRARIES proc)
endif()

if (LLVM_ENABLE_DOXYGEN)
message(STATUS "Doxygen: enabled")
endif()
Expand Down
7 changes: 1 addition & 6 deletions CODE_OWNERS.TXT
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Expand Up @@ -20,7 +20,7 @@ D: XCTest overlay
N: Erik Eckstein
E: eeckstein@apple.com
G: eeckstein
D: SILOptimizer
D: SILOptimizer, Swift Benchmark Suite

N: Xi Ge
E: xi_ge@apple.com
Expand All @@ -42,11 +42,6 @@ E: kyrtzidis@apple.com
G: akyrtzi
D: IDE, Index, SourceKit, swift-ide-test

N: Luke Larson
E: llarson@apple.com
G: lplarson
D: Swift Benchmark Suite

N: John McCall
E: rjmccall@apple.com
G: rjmccall
Expand Down
51 changes: 48 additions & 3 deletions README.md
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Expand Up @@ -8,7 +8,7 @@
| **macOS** | x86_64 |[![Build Status](https://ci.swift.org/job/oss-swift-incremental-RA-osx/lastCompletedBuild/badge/icon)](https://ci.swift.org/job/oss-swift-incremental-RA-osx)|[![Build Status](https://ci.swift.org/job/oss-swift-package-osx/lastCompletedBuild/badge/icon)](https://ci.swift.org/job/oss-swift-package-osx)|
| **Ubuntu 14.04** | x86_64 | [![Build Status](https://ci.swift.org/job/oss-swift-incremental-RA-linux-ubuntu-14_04/lastCompletedBuild/badge/icon)](https://ci.swift.org/job/oss-swift-incremental-RA-linux-ubuntu-14_04)|[![Build Status](https://ci.swift.org/job/oss-swift-package-linux-ubuntu-14_04/lastCompletedBuild/badge/icon)](https://ci.swift.org/job/oss-swift-package-linux-ubuntu-14_04)|
| **Ubuntu 16.04** | x86_64 | [![Build Status](https://ci.swift.org/job/oss-swift-incremental-RA-linux-ubuntu-16_04/lastCompletedBuild/badge/icon)](https://ci.swift.org/job/oss-swift-incremental-RA-linux-ubuntu-16_04)|[![Build Status](https://ci.swift.org/job/oss-swift-package-linux-ubuntu-16_04/lastCompletedBuild/badge/icon)](https://ci.swift.org/job/oss-swift-package-linux-ubuntu-16_04)|
| **Ubuntu 16.10** | x86_64 | [![Build Status](https://ci.swift.org/job/oss-swift-incremental-RA-linux-ubuntu-16_10/lastCompletedBuild/badge/icon)](https://ci.swift.org/job/oss-swift-incremental-RA-linux-ubuntu-16_10)|[![Build Status](https://ci.swift.org/job/oss-swift-package-linux-ubuntu-16_10/lastCompletedBuild/badge/icon)](https://ci.swift.org/job/oss-swift-package-linux-ubuntu-16_10)|
| **Ubuntu 18.04** | x86_64 | [![Build Status](https://ci.swift.org/job/oss-swift-incremental-RA-linux-ubuntu-18_04/lastCompletedBuild/badge/icon)](https://ci.swift.org/job/oss-swift-incremental-RA-linux-ubuntu-18_04)|[![Build Status](https://ci.swift.org/job/oss-swift-package-linux-ubuntu-18_04/lastCompletedBuild/badge/icon)](https://ci.swift.org/job/oss-swift-package-linux-ubuntu-18_04)|

**Swift Community-Hosted CI Platforms**

Expand All @@ -17,10 +17,12 @@
|**[Debian 9.1 (Raspberry Pi)](https://github.com/apple/swift-community-hosted-continuous-integration/blob/master/nodes/armv7_debian_stretch.json)** | ARMv7 | [![Build Status](https://ci-external.swift.org/job/oss-swift-RA-linux-debian-9_1/lastCompletedBuild/badge/icon)](https://ci-external.swift.org/job/oss-swift-RA-linux-debian-9_1)|
|**[Fedora 27](https://github.com/apple/swift-community-hosted-continuous-integration/blob/master/nodes/x86_64_fedora_27.json)** | x86_64 |[![Build Status](https://ci-external.swift.org/job/oss-swift-RA-linux-fedora-27/lastCompletedBuild/badge/icon)](https://ci-external.swift.org/job/oss-swift-RA-linux-fedora-27)|
|**[Ubuntu 16.04](https://github.com/apple/swift-community-hosted-continuous-integration/blob/master/nodes/x86_64_ubuntu_16_04.json)** | x86_64 |[![Build Status](https://ci-external.swift.org/job/oss-swift-RA-linux-ubuntu-16.04/lastCompletedBuild/badge/icon)](https://ci-external.swift.org/job/oss-swift-RA-linux-ubuntu-16.04)|
|**[Ubuntu 16.04 (TensorFlow)](https://github.com/apple/swift-community-hosted-continuous-integration/blob/master/nodes/x86_64_ubuntu_16_04_tensorflow.json)** | x86_64 |[![Build Status](https://ci-external.swift.org/job/oss-swift-RA-linux-ubuntu-16.04-tensorflow/lastCompletedBuild/badge/icon)](https://ci-external.swift.org/job/oss-swift-RA-linux-ubuntu-16.04-tensorflow)|
|**[Ubuntu 16.04 ](https://github.com/apple/swift-community-hosted-continuous-integration/blob/master/nodes/ppc64le_ubuntu_16_04.json)** | PPC64LE |[![Build Status](https://ci-external.swift.org/job/oss-swift-4.1-RA-linux-ubuntu-16.04-ppc64le/lastCompletedBuild/badge/icon)](https://ci-external.swift.org/job/oss-swift-4.1-RA-linux-ubuntu-16.04-ppc64le)|
|**[Ubuntu 16.04 ](https://github.com/apple/swift-community-hosted-continuous-integration/blob/master/nodes/aarch64_ubuntu_16.04.json)** | AArch64 |[![Build Status](https://ci-external.swift.org/job/oss-swift-RA-linux-ubuntu-16.04-aarch64/lastCompletedBuild/badge/icon)](https://ci-external.swift.org/job/oss-swift-RA-linux-ubuntu-16.04-aarch64)|
|**[Ubuntu 16.04 (Android)](https://github.com/apple/swift-community-hosted-continuous-integration/blob/master/nodes/x86_64_ubuntu_16_04_LTS_android.json)** | x86_64 |[![Build Status](https://ci-external.swift.org/job/oss-swift-RA-linux-ubuntu-16.04-android/lastCompletedBuild/badge/icon)](https://ci-external.swift.org/job/oss-swift-RA-linux-ubuntu-16.04-android)|
|**[Ubuntu 16.04 (TensorFlow)](https://github.com/apple/swift-community-hosted-continuous-integration/blob/master/nodes/x86_64_ubuntu_16_04_tensorflow.json)** | x86_64 |[![Build Status](https://ci-external.swift.org/job/oss-swift-RA-linux-ubuntu-16.04-tensorflow/lastCompletedBuild/badge/icon)](https://ci-external.swift.org/job/oss-swift-RA-linux-ubuntu-16.04-tensorflow)|
|**[macOS 10.13 (TensorFlow)](https://github.com/apple/swift-community-hosted-continuous-integration/blob/master/nodes/x86_64_macos_high_sierra_tensorflow.json)** | x86_64 |[![Build Status](https://ci-external.swift.org/job/oss-swift-RA-macOS-tensorflow/lastCompletedBuild/badge/icon)](https://ci-external.swift.org/job/oss-swift-RA-macOS-tensorflow)|
|**[Ubuntu 16.04 (TensorFlow with GPU)](https://github.com/apple/swift-community-hosted-continuous-integration/blob/master/nodes/x86_64_ubuntu_16_04_tensorflow_gpu.json)** | x86_64 |[![Build Status](https://ci-external.swift.org/job/oss-swift-RA-linux-ubuntu-16.04-tensorflow-gpu/lastCompletedBuild/badge/icon)](https://ci-external.swift.org/job/oss-swift-RA-linux-ubuntu-16.04-tensorflow-gpu)|


**Welcome to Swift!**
Expand Down Expand Up @@ -69,7 +71,7 @@ supported host development operating systems.

#### macOS

To build for macOS, you need [Xcode 10 beta 5](https://developer.apple.com/xcode/downloads/).
To build for macOS, you need [Xcode 10.0](https://developer.apple.com/xcode/downloads/).
The required version of Xcode changes frequently, and is often a beta release.
Check this document or the host information on <https://ci.swift.org> for the
current required version.
Expand Down Expand Up @@ -206,6 +208,49 @@ common debug flow would involve:
Another option is to change the scheme to "Wait for executable to be launched",
then run the build product in Terminal.

### Swift Toolchains

#### Building

Swift toolchains are created using the script
[build-toolchain](https://github.com/apple/swift/blob/master/utils/build-toolchain). This
script is used by swift.org's CI to produce snapshots and can allow for one to
locally reproduce such builds for development or distribution purposes. E.x.:

```
$ ./utils/build-toolchain $TOOLCHAIN_PREFIX
```

where ``$TOOLCHAIN_PREFIX`` is a string that will be prepended to the swift
package name in the produced tar ball. For instance, if ``$TOOLCHAIN_PREFIX``
was ``macOS``, the produced archive will have the name
``swift-macOS.tar.gz``.

Beyond building the toolchain, ``build-toolchain`` also supports the following
(non-exhaustive) set of useful options::

- ``--dry-run``: Perform a dry run build. This is off by default.
- ``--test``: Test the toolchain after it has been compiled. This is off by default.
- ``--distcc``: Use distcc to speed up the build by distributing the c++ part of
the swift build. This is off by default.

More options may be added over time. Please pass ``--help`` to
``build-toolchain`` to see the full set of options.

#### Installing into Xcode

On macOS if one wants to install such a toolchain into Xcode:

1. Untar and copy the toolchain to one of `/Library/Developer/Toolchains/` or
`~/Library/Developer/Toolchains/`. E.x.:

```
$ tar -xzf swift-macOS.tar.gz -C /
$ tar -xzf swift-macOS.tar.gz -C ~/
```

2. Specify the local toolchain for Xcode's use via `Xcode->Toolchains`.

### Build Failures

Make sure you are using the [correct release](#macos) of Xcode.
Expand Down
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