[sourcekit] Merge SourceKit into the Swift repo.

The code goes into its own sub-tree under 'tools' but tests go under 'test',
so that running 'check-swift' will also run all the SourceKit tests.

SourceKit is disabled on non-darwin platforms.

Author: akyrtzi

CMakeLists.txt

@@ -44,6 +44,15 @@ option(SWIFT_BUILD_STATIC_STDLIB
     "Build static variants of the Swift standard library and SDK overlay"
     FALSE)
 
+if("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
+  set(SWIFT_BUILD_SOURCEKIT_default TRUE)
+else()
+  set(SWIFT_BUILD_SOURCEKIT_default FALSE)
+endif()
+option(SWIFT_BUILD_SOURCEKIT
+    "Build SourceKit"
+    ${SWIFT_BUILD_SOURCEKIT_default})
+
 option(SWIFT_INCLUDE_BENCHMARKS
     "Create targets for running swift benchmarks"
     TRUE)
@@ -77,7 +86,7 @@ set(SWIFT_ENABLE_GOLD_LINKER FALSE CACHE BOOL
     "Enable using the gold linker when available")
 
 set(_SWIFT_KNOWN_INSTALL_COMPONENTS
-    "compiler;clang-builtin-headers;clang-resource-dir-symlink;clang-builtin-headers-in-clang-resource-dir;clang-libclang;arclite-symlink;stdlib;stdlib-experimental;sdk-overlay;editor-integration;lang-docs;tools;testsuite-tools;dev")
+    "compiler;clang-builtin-headers;clang-resource-dir-symlink;clang-builtin-headers-in-clang-resource-dir;clang-libclang;arclite-symlink;stdlib;stdlib-experimental;sdk-overlay;editor-integration;lang-docs;tools;testsuite-tools;dev;sourcekit-xpc-service;sourcekit-inproc")
 
 # Set the SWIFT_INSTALL_COMPONENTS variable to the default value if it is not passed in via -D
 set(SWIFT_INSTALL_COMPONENTS "${_SWIFT_KNOWN_INSTALL_COMPONENTS}" CACHE STRING

test/CMakeLists.txt

@@ -8,6 +8,12 @@ function(swift_configure_lit_site_cfg source_path destination_path installed_nam
   string(REPLACE ${CMAKE_CFG_INTDIR} ${SWIFT_BUILD_MODE} LLVM_TOOLS_DIR ${LLVM_TOOLS_BINARY_DIR})
   string(REPLACE ${CMAKE_CFG_INTDIR} ${SWIFT_BUILD_MODE} LLVM_LIBS_DIR  ${LLVM_LIBRARY_DIR})
 
+  if (XCODE)
+    string(REPLACE ${CMAKE_CFG_INTDIR} Debug LIT_SWIFTLIB_DIR ${SWIFTLIB_DIR})
+  else ()
+    set(LIT_SWIFTLIB_DIR ${SWIFTLIB_DIR})
+  endif ()
+
   configure_lit_site_cfg("${source_path}" "${destination_path}")
 
   if(NOT "${installed_name}" STREQUAL "")
@@ -39,6 +45,9 @@ function(get_test_dependencies SDK result_var_name)
   if(NOT SWIFT_BUILT_STANDALONE)
     list(APPEND deps_binaries llc)
   endif()
+  if(SWIFT_BUILD_SOURCEKIT)
+    list(APPEND deps_binaries sourcekitd-test complete-test)
+  endif()
 
   if(("${SDK}" STREQUAL "IOS") OR
      ("${SDK}" STREQUAL "TVOS") OR

test/SourceKit/CodeComplete/Inputs/ImportsFoo.h

@@ -0,0 +1,4 @@
+@import Bar;
+@import Foo;
+
+void importsFoo(void);

test/SourceKit/CodeComplete/Inputs/ImportsImportsFoo.h

@@ -0,0 +1,4 @@
+@import ImportsFoo;
+@import Bar;
+
+void importsImportsFoo(void);

test/SourceKit/CodeComplete/Inputs/auxiliary_file.swift

@@ -0,0 +1,2 @@
+@exported import ImportedByAuxFile
+public func fromAuxFile() {}

test/SourceKit/CodeComplete/Inputs/complete_typealias_different_file_2.swift

@@ -0,0 +1,4 @@
+public typealias Foo = JSValue
+
+public struct JSValue {
+}

test/SourceKit/CodeComplete/Inputs/custom-completion/custom.json

@@ -0,0 +1,29 @@
+{
+  key.request: source.request.codecomplete.setcustom,
+  key.results: [
+    {
+      key.name: "customExpr",
+      key.kind: myuid.customExpr,
+      key.context: [ source.lang.swift.expr ]
+    },
+    {
+      key.name: "customStmt",
+      key.kind: myuid.customStmt,
+      key.context: [ source.lang.swift.stmt ]
+    },
+    {
+      key.name: "customType",
+      key.kind: myuid.customType,
+      key.context: [ source.lang.swift.type ]
+    },
+    {
+      key.name: "customExprOrStmtOrType",
+      key.kind: myuid.customExprOrStmtOrType,
+      key.context: [
+        source.lang.swift.expr,
+        source.lang.swift.stmt,
+        source.lang.swift.type
+      ]
+    }
+  ]
+}

test/SourceKit/CodeComplete/Inputs/custom-completion/error1.json

@@ -0,0 +1,3 @@
+{
+  key.request: source.request.codecomplete.setcustom,
+}

test/SourceKit/CodeComplete/Inputs/custom-completion/error10.json

@@ -0,0 +1,12 @@
+{
+  key.request: source.request.codecomplete.setcustom,
+  key.results: [
+    {
+      key.name: "name",
+      key.kind: myuid1,
+      key.context: [
+        invalidcontext
+      ]
+    }
+  ]
+}

test/SourceKit/CodeComplete/Inputs/custom-completion/error2.json

@@ -0,0 +1,4 @@
+{
+  key.request: source.request.codecomplete.setcustom,
+  key.results: {}
+}