Commit bf112531 authored by Brad King's avatar Brad King

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`.
parent 8fbd9584
add-apple-swift-language
------------------------
* CMake learned rudimentary support for the Apple Swift language. When using
the :generator:`Xcode` generator with Xcode 6.1 or higher, one may enable
the ``Swift`` language with the :command:`enable_language` command or the
:command:`project` command (this is an error with other generators or when
Xcode is too old). Then one may list ``.swift`` source files in targets
for compilation.
#=============================================================================
# Copyright 2002-2015 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
include(${CMAKE_ROOT}/Modules/CMakeDetermineCompiler.cmake)
if("${CMAKE_GENERATOR}" STREQUAL "Xcode")
if(XCODE_VERSION VERSION_LESS 6.1)
message(FATAL_ERROR "Swift language not supported by Xcode ${XCODE_VERSION}")
endif()
set(CMAKE_Swift_COMPILER_XCODE_TYPE sourcecode.swift)
_cmake_find_compiler_path(Swift)
else()
message(FATAL_ERROR "Swift language not supported by \"${CMAKE_GENERATOR}\" generator")
endif()
# Build a small source file to identify the compiler.
if(NOT CMAKE_Swift_COMPILER_ID_RUN)
set(CMAKE_Swift_COMPILER_ID_RUN 1)
list(APPEND CMAKE_Swift_COMPILER_ID_MATCH_VENDORS Apple)
set(CMAKE_Swift_COMPILER_ID_MATCH_VENDOR_REGEX_Apple "com.apple.xcode.tools.swift.compiler")
set(CMAKE_Swift_COMPILER_ID_TOOL_MATCH_REGEX "\nCompileSwiftSources[^\n]*(\n[ \t]+[^\n]*)*\n[ \t]+([^ \t\r\n]+)[^\r\n]* -c[^\r\n]*CompilerIdSwift/CompilerId/main.swift")
set(CMAKE_Swift_COMPILER_ID_TOOL_MATCH_INDEX 2)
# Try to identify the compiler.
set(CMAKE_Swift_COMPILER_ID)
include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerId.cmake)
CMAKE_DETERMINE_COMPILER_ID(Swift "" CompilerId/main.swift)
endif()
if (NOT _CMAKE_TOOLCHAIN_LOCATION)
get_filename_component(_CMAKE_TOOLCHAIN_LOCATION "${CMAKE_Swift_COMPILER}" PATH)
endif ()
include(CMakeFindBinUtils)
# configure variables set in this file for fast reload later on
configure_file(${CMAKE_ROOT}/Modules/CMakeSwiftCompiler.cmake.in
${CMAKE_PLATFORM_INFO_DIR}/CMakeSwiftCompiler.cmake
@ONLY
)
set(CMAKE_Swift_COMPILER "@CMAKE_Swift_COMPILER@")
set(CMAKE_Swift_COMPILER_ID "@CMAKE_Swift_COMPILER_ID@")
set(CMAKE_Swift_COMPILER_ID_RUN 1)
set(CMAKE_Swift_SOURCE_FILE_EXTENSIONS swift)
#=============================================================================
# Copyright 2004-2015 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
set(CMAKE_Swift_OUTPUT_EXTENSION .o)
# Load compiler-specific information.
if(CMAKE_Swift_COMPILER_ID)
include(Compiler/${CMAKE_Swift_COMPILER_ID}-Swift OPTIONAL)
endif()
# load the system- and compiler specific files
if(CMAKE_Swift_COMPILER_ID)
# load a hardware specific file, mostly useful for embedded compilers
if(CMAKE_SYSTEM_PROCESSOR)
include(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_Swift_COMPILER_ID}-Swift-${CMAKE_SYSTEM_PROCESSOR} OPTIONAL)
endif()
include(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_Swift_COMPILER_ID}-Swift OPTIONAL)
endif()
# for most systems a module is the same as a shared library
# so unless the variable CMAKE_MODULE_EXISTS is set just
# copy the values from the LIBRARY variables
if(NOT CMAKE_MODULE_EXISTS)
set(CMAKE_SHARED_MODULE_Swift_FLAGS ${CMAKE_SHARED_LIBRARY_Swift_FLAGS})
set(CMAKE_SHARED_MODULE_CREATE_Swift_FLAGS ${CMAKE_SHARED_LIBRARY_CREATE_Swift_FLAGS})
endif()
include(CMakeCommonLanguageInclude)
set(CMAKE_Swift_INFORMATION_LOADED 1)
#=============================================================================
# Copyright 2003-2015 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
set(CMAKE_Swift_COMPILER_WORKS 1)
println("CMakeSwiftCompilerId")
......@@ -843,6 +843,10 @@ GetSourcecodeValueFromFileExtension(const std::string& _ext,
{
sourcecode += ".c.objc";
}
else if (ext == "swift")
{
sourcecode += ".swift";
}
else if(ext == "plist")
{
sourcecode += ".text.plist";
......
......@@ -260,6 +260,12 @@ if(BUILD_TESTING)
ADD_TEST_MACRO(MissingSourceFile MissingSourceFile)
set_tests_properties(MissingSourceFile PROPERTIES
PASS_REGULAR_EXPRESSION "CMake Error at CMakeLists.txt:3 \\(add_executable\\):[ \r\n]*Cannot find source file:[ \r\n]*DoesNotExist/MissingSourceFile.c")
if(CMake_TEST_XCODE_VERSION AND NOT CMake_TEST_XCODE_VERSION VERSION_LESS 6.1)
if(CMAKE_GENERATOR STREQUAL "Xcode")
ADD_TEST_MACRO(SwiftMix SwiftMix)
ADD_TEST_MACRO(SwiftOnly SwiftOnly)
endif()
endif()
if(CMAKE_Fortran_COMPILER)
ADD_TEST_MACRO(FortranOnly FortranOnly)
endif()
......
......@@ -59,6 +59,10 @@ function(add_RunCMake_test_group test types)
endforeach()
endfunction()
if(XCODE_VERSION AND "${XCODE_VERSION}" VERSION_LESS 6.1)
set(Swift_ARGS -DXCODE_BELOW_6_1=1)
endif()
if(XCODE_VERSION AND "${XCODE_VERSION}" VERSION_LESS 3)
set(GeneratorToolset_ARGS -DXCODE_BELOW_3=1)
endif()
......@@ -132,6 +136,7 @@ add_RunCMake_test(GNUInstallDirs)
add_RunCMake_test(TargetPropertyGeneratorExpressions)
add_RunCMake_test(Languages)
add_RunCMake_test(ObjectLibrary)
add_RunCMake_test(Swift)
add_RunCMake_test(TargetObjects)
add_RunCMake_test(TargetSources)
add_RunCMake_test(find_dependency)
......
cmake_minimum_required(VERSION 3.3)
project(${RunCMake_TEST} NONE)
include(${RunCMake_TEST}.cmake)
-- The Swift compiler identification is Apple
^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]+ \(include\)
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()
^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]+ \(include\)
extern int ObjCMain(int argc, char const* const argv[]);
int main(int argc, char* argv[]) {
return ObjCMain(argc, argv);
}
cmake_minimum_required(VERSION 3.3)
project(SwiftMix C Swift)
add_executable(SwiftMix CMain.c ObjCMain.m SwiftMain.swift ObjC-Swift.h)
set_property(TARGET SwiftMix PROPERTY XCODE_ATTRIBUTE_SWIFT_OBJC_BRIDGING_HEADER "ObjC-Swift.h")
#import "SwiftMix-Swift.h"
int ObjCMain(int argc, char const* const argv[]) {
return [SwiftMainClass SwiftMain:argc argv:argv];
}
@objc class SwiftMainClass {
class func SwiftMain(argc:Int, argv:UnsafePointer<UnsafePointer<CChar>>) -> Int32 {
println("argc: \(argc)")
for (var i = 0; i < argc; ++i) {
var argi = String.fromCString(argv[i])
println("arg[\(i)]: \(argi)");
}
return 0;
}
}
cmake_minimum_required(VERSION 3.3)
project(SwiftOnly Swift)
add_executable(SwiftOnly main.swift)
println("SwiftOnly")
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