Add rudimentary support for the Apple Swift language with Xcode

Allow the `Swift` language to be enabled with the Xcode generator for
Xcode >= 6.1.  Reject it on other generators and with older Xcode
versions.  Since Apple is the only vendor implementing the language
right now, the compiler id can be just `Apple`.

10 files changed, 30 insertions, 0 deletions

diff --git a/Tests/RunCMake/Swift/CMakeLists.txt b/Tests/RunCMake/Swift/CMakeLists.txt
new file mode 100644
index 0000000..74b3ff8
--- /dev/null
+++ b/Tests/RunCMake/Swift/CMakeLists.txt
@@ -0,0 +1,3 @@
+cmake_minimum_required(VERSION 3.3)
+project(${RunCMake_TEST} NONE)
+include(${RunCMake_TEST}.cmake)
diff --git a/Tests/RunCMake/Swift/Enable-stdout.txt b/Tests/RunCMake/Swift/Enable-stdout.txt
new file mode 100644
index 0000000..39e133f
--- /dev/null
+++ b/Tests/RunCMake/Swift/Enable-stdout.txt
@@ -0,0 +1 @@
+-- The Swift compiler identification is Apple
diff --git a/Tests/RunCMake/Swift/Enable.cmake b/Tests/RunCMake/Swift/Enable.cmake
new file mode 100644
index 0000000..19f297a
--- /dev/null
+++ b/Tests/RunCMake/Swift/Enable.cmake
@@ -0,0 +1 @@
+enable_language(Swift)
diff --git a/Tests/RunCMake/Swift/NotSupported-result.txt b/Tests/RunCMake/Swift/NotSupported-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/Swift/NotSupported-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/Swift/NotSupported-stderr.txt b/Tests/RunCMake/Swift/NotSupported-stderr.txt
new file mode 100644
index 0000000..9a9c23f
--- /dev/null
+++ b/Tests/RunCMake/Swift/NotSupported-stderr.txt
@@ -0,0 +1,5 @@
+^CMake Error at .*/Modules/CMakeDetermineSwiftCompiler.cmake:[0-9]+ \(message\):
+  Swift language not supported by "[^"]*" generator
+Call Stack \(most recent call first\):
+  NotSupported.cmake:[0-9]+ \(enable_language\)
+  CMakeLists.txt:[0-9]+ \(include\)
diff --git a/Tests/RunCMake/Swift/NotSupported.cmake b/Tests/RunCMake/Swift/NotSupported.cmake
new file mode 100644
index 0000000..19f297a
--- /dev/null
+++ b/Tests/RunCMake/Swift/NotSupported.cmake
@@ -0,0 +1 @@
+enable_language(Swift)
diff --git a/Tests/RunCMake/Swift/RunCMakeTest.cmake b/Tests/RunCMake/Swift/RunCMakeTest.cmake
new file mode 100644
index 0000000..0a57121
--- /dev/null
+++ b/Tests/RunCMake/Swift/RunCMakeTest.cmake
@@ -0,0 +1,11 @@
+include(RunCMake)
+
+if(RunCMake_GENERATOR STREQUAL Xcode)
+  if(XCODE_BELOW_6_1)
+    run_cmake(XcodeTooOld)
+  else()
+    run_cmake(Enable)
+  endif()
+else()
+  run_cmake(NotSupported)
+endif()
diff --git a/Tests/RunCMake/Swift/XcodeTooOld-result.txt b/Tests/RunCMake/Swift/XcodeTooOld-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/Swift/XcodeTooOld-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/Swift/XcodeTooOld-stderr.txt b/Tests/RunCMake/Swift/XcodeTooOld-stderr.txt
new file mode 100644
index 0000000..8d18f29
--- /dev/null
+++ b/Tests/RunCMake/Swift/XcodeTooOld-stderr.txt
@@ -0,0 +1,5 @@
+^CMake Error at .*/Modules/CMakeDetermineSwiftCompiler.cmake:[0-9]+ \(message\):
+  Swift language not supported by Xcode [0-9.]+
+Call Stack \(most recent call first\):
+  XcodeTooOld.cmake:[0-9]+ \(enable_language\)
+  CMakeLists.txt:[0-9]+ \(include\)
diff --git a/Tests/RunCMake/Swift/XcodeTooOld.cmake b/Tests/RunCMake/Swift/XcodeTooOld.cmake
new file mode 100644
index 0000000..19f297a
--- /dev/null
+++ b/Tests/RunCMake/Swift/XcodeTooOld.cmake
@@ -0,0 +1 @@
+enable_language(Swift)