Update to Swift 3.1

Author: CodaFi

.travis.yml

@@ -5,7 +5,7 @@ matrix:
   include:
   - os: osx
     language: objective-c
-    osx_image: xcode8.2
+    osx_image: xcode8.3
     before_install:
     - export PATH=/usr/local/opt/llvm/bin:"${PATH}"
     - brew update
@@ -33,10 +33,10 @@ matrix:
     - sudo rm -f /usr/bin/llvm-config
     - sudo ln -s /usr/bin/llvm-config-${LLVM_API_VERSION} /usr/bin/llvm-config
     - wget -q -O - https://swift.org/keys/all-keys.asc | gpg --import -
-    - wget https://swift.org/builds/swift-3.0.2-release/ubuntu1404/swift-3.0.2-RELEASE/swift-3.0.2-RELEASE-ubuntu14.04.tar.gz
-    - tar xzf swift-3.0.2-RELEASE-ubuntu14.04.tar.gz
-    - export PATH=${PWD}/swift-3.0.2-RELEASE-ubuntu14.04/usr/bin:"${PATH}"
-    - sudo ./swift-3.0.2-RELEASE-ubuntu14.04/usr/bin/swift utils/make-pkgconfig.swift
+    - wget https://swift.org/builds/swift-3.1-release/ubuntu1404/swift-3.1-RELEASE/swift-3.1-RELEASE-ubuntu14.04.tar.gz
+    - tar xzf swift-3.1-RELEASE-ubuntu14.04.tar.gz
+    - export PATH=${PWD}/swift-3.1-RELEASE-ubuntu14.04/usr/bin:"${PATH}"
+    - sudo ./swift-3.1-RELEASE-ubuntu14.04/usr/bin/swift utils/make-pkgconfig.swift
     script:
     - swift test
 notifications:

README.md

@@ -47,7 +47,7 @@ Plus, it provides common wrappers around oft-used types like `Function`, `Global
 There are a couple, annoying steps you need to get it working before it'll
 build.
 
-- Install LLVM 3.9 using your favorite package manager. For example:
+- Install LLVM 4.0 using your favorite package manager. For example:
   - `brew install llvm`
 - Ensure `llvm-config` is in your `PATH`
   - That will reside in the `/bin` folder wherever your package manager

Sources/LLVM/Constant.swift

@@ -14,13 +14,6 @@ public enum Signed: IntegralConstantRepresentation {}
 /// Represents floating types and operations.
 public enum Floating: ConstantRepresentation {}
 
-// FIXME: When upgrading to Swift 3.1, move this into `Constant`.
-internal enum InternalConstantRepresentation {
-  case unsigned
-  case signed
-  case floating
-}
-
 /// A `Constant` represents a value initialized to a constant.  Constant values
 /// may be manipulated with standard Swift arithmetic operations and used with
 /// standard IR Builder instructions like any other operand.  The difference
@@ -31,8 +24,15 @@ internal enum InternalConstantRepresentation {
 /// disallow mixed-type arithmetic.  Use the `cast` family of operations to
 /// safely convert constants to other representations.
 public struct Constant<Repr: ConstantRepresentation>: IRValue {
+  fileprivate enum Representation {
+    case unsigned
+    case signed
+    case floating
+  }
+  fileprivate let repr: Representation
+
   internal let llvm: LLVMValueRef
-  internal let repr: InternalConstantRepresentation
+
   internal init(llvm: LLVMValueRef!) {
     self.llvm = llvm