swift-mirror/tools/swift-ide-test/swift-ide-test.cpp

//===--- swift-ide-test.cpp - IDE functionality testing application -------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//

#include "XMLValidator.h"
#include "ModuleAPIDiff.h"
#include "swift/AST/ASTContext.h"
#include "swift/AST/ASTPrinter.h"
#include "swift/AST/ASTWalker.h"
#include "swift/AST/DebuggerClient.h"
#include "swift/AST/DiagnosticEngine.h"
#include "swift/AST/Mangle.h"
#include "swift/AST/PrintOptions.h"
#include "swift/AST/RawComment.h"
#include "swift/AST/USRGeneration.h"
#include "swift/Basic/Demangle.h"
#include "swift/Basic/DemangleWrappers.h"
#include "swift/Basic/DiagnosticConsumer.h"
#include "swift/Basic/LangOptions.h"
#include "swift/Basic/PrimitiveParsing.h"
#include "swift/Driver/FrontendUtil.h"
#include "swift/Frontend/Frontend.h"
#include "swift/Frontend/PrintingDiagnosticConsumer.h"
#include "swift/IDE/CodeCompletion.h"
#include "swift/IDE/CommentConversion.h"
#include "swift/IDE/ModuleInterfacePrinting.h"
#include "swift/IDE/REPLCodeCompletion.h"
#include "swift/IDE/SourceEntityWalker.h"
#include "swift/IDE/SyntaxModel.h"
#include "swift/IDE/Utils.h"
#include "swift/ReST/Parser.h"
#include "clang/APINotes/APINotesReader.h"
#include "clang/APINotes/APINotesWriter.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/Process.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/Support/raw_ostream.h"
#include <system_error>

#include <string>

using namespace swift;
using namespace ide;

namespace {

enum class ActionType {
  None,
  CodeCompletion,
  REPLCodeCompletion,
  SyntaxColoring,
  Structure,
  Annotation,
  TestInputCompleteness,
  PrintASTNotTypeChecked,
  PrintASTTypeChecked,
  PrintModule,
  PrintTypes,
  PrintComments,
  PrintModuleComments,
  PrintModuleImports,
  PrintUSRs,
  PrintLocalTypes,
  ParseReST,
  TestCreateCompilerInvocation,
  GenerateModuleAPIDescription,
  DiffModuleAPI,
};

class NullDebuggerClient : public DebuggerClient {
public:
  using DebuggerClient::DebuggerClient;

  bool shouldGlobalize(Identifier Name, DeclKind Kind) override {
    return false;
  }
  void didGlobalize(Decl *D) override {}
  bool lookupOverrides(Identifier Name, DeclContext *DC,
                       SourceLoc Loc, bool IsTypeLookup,
                       ResultVector &RV) override {
    return false;
  }

  bool lookupAdditions(Identifier Name, DeclContext *DC,
                       SourceLoc Loc, bool IsTypeLookup,
                       ResultVector &RV) override {
    return false;
  }

  SILDebuggerClient *getAsSILDebuggerClient() override {
    return nullptr;
  }
};

class PrivateDiscriminatorPreferenceClient : public NullDebuggerClient {
  Identifier Discriminator;
public:
  PrivateDiscriminatorPreferenceClient(ASTContext &C,
                                       StringRef DiscriminatorStr)
      : NullDebuggerClient(C),
        Discriminator(C.getIdentifier(DiscriminatorStr)) {}

  Identifier getPreferredPrivateDiscriminator() override {
    return Discriminator;
  }
};

} // end anonymous namespace

namespace options {

static llvm::cl::opt<ActionType>
Action(llvm::cl::desc("Mode:"), llvm::cl::init(ActionType::None),
       llvm::cl::values(
           clEnumValN(ActionType::CodeCompletion,
                      "code-completion", "Perform code completion"),
           clEnumValN(ActionType::REPLCodeCompletion,
                      "repl-code-completion", "Perform REPL-style code completion"),
           clEnumValN(ActionType::SyntaxColoring,
                      "syntax-coloring", "Perform syntax coloring"),
           clEnumValN(ActionType::Structure,
                      "structure", "Perform document structure annotation"),
           clEnumValN(ActionType::Annotation,
                      "annotate", "Perform semantic annotation"),
           clEnumValN(ActionType::TestInputCompleteness,
                      "test-input-complete", "Check if input source is complete"),
           clEnumValN(ActionType::PrintASTNotTypeChecked,
                      "print-ast-not-typechecked", "Print the non-typechecked AST"),
           clEnumValN(ActionType::PrintASTTypeChecked,
                      "print-ast-typechecked", "Print the typechecked AST"),
           clEnumValN(ActionType::PrintModule,
                      "print-module", "Print visible declarations in a module"),
           clEnumValN(ActionType::PrintTypes,
                      "print-types", "Print types of all subexpressions and declarations in the AST"),
           clEnumValN(ActionType::PrintComments,
                      "print-comments", "Print documentation comments attached to decls"),
           clEnumValN(ActionType::PrintModuleComments,
                      "print-module-comments", "Given a module, print documentation comments attached to decls"),
           clEnumValN(ActionType::PrintModuleImports,
                      "print-module-imports", "Recursively print all imports visible from a particular module"),
           clEnumValN(ActionType::PrintUSRs,
                      "print-usrs", "Print USRs for all decls"),
           clEnumValN(ActionType::PrintLocalTypes,
                      "print-local-types", "Print local types and remanglings in a module"),
           clEnumValN(ActionType::ParseReST,
                      "parse-rest", "Parse a ReST file"),
           clEnumValN(ActionType::TestCreateCompilerInvocation,
                      "test-createCompilerInvocation",
                      "Test swift::driver::createCompilerInvocation using the "
                      "arguments passed to swift-ide-test (must be specified "
                      "before all other arguments)"),
           clEnumValN(ActionType::GenerateModuleAPIDescription,
                      "generate-module-api-description",
                      "Generate a machine-readable description of module API"),
           clEnumValN(ActionType::DiffModuleAPI,
                      "diff-module-api",
                      "Compare machine-readable descriptions of module API"),
           clEnumValEnd));

static llvm::cl::opt<std::string>
SourceFilename("source-filename", llvm::cl::desc("Name of the source file"));

static llvm::cl::list<std::string>
InputFilenames(llvm::cl::Positional, llvm::cl::desc("[input files...]"),
               llvm::cl::ZeroOrMore);

static llvm::cl::list<std::string>
BuildConfigs("D", llvm::cl::desc("Build configurations"));

static llvm::cl::opt<std::string>
SDK("sdk", llvm::cl::desc("path to the SDK to build against"));

static llvm::cl::opt<std::string>
Triple("target", llvm::cl::desc("target triple"));

static llvm::cl::opt<std::string>
ModuleCachePath("module-cache-path", llvm::cl::desc("Clang module cache path"));

static llvm::cl::list<std::string>
ImportPaths("I", llvm::cl::desc("add a directory to the import search path"));

static llvm::cl::list<std::string>
FrameworkPaths("F", llvm::cl::desc("add a directory to the framework search path"));

static llvm::cl::opt<std::string>
ResourceDir("resource-dir",
            llvm::cl::desc("The directory that holds the compiler resource files"));

static llvm::cl::opt<std::string>
ImportObjCHeader("import-objc-header", llvm::cl::desc("header to implicitly import"));

static llvm::cl::opt<bool>
EnableSourceImport("enable-source-import", llvm::cl::Hidden,
                   llvm::cl::init(false));

static llvm::cl::opt<bool>
DisableAccessControl("disable-access-control",
    llvm::cl::desc("Disables access control, like a debugger"));

static llvm::cl::opt<bool>
ObjCForwardDeclarations("enable-objc-forward-declarations",
    llvm::cl::desc("Import Objective-C forward declarations when possible"),
    llvm::cl::init(false));

static llvm::cl::opt<bool>
SplitObjCSelectors("split-objc-selectors",
                   llvm::cl::desc("Split Objective-C selectors"),
                   llvm::cl::init(false));

static llvm::cl::opt<bool>
ImplicitProperties("enable-objc-implicit-properties",
                   llvm::cl::desc("Implicitly import Objective-C getter/setter pairs as properties"),
                   llvm::cl::init(false));

static llvm::cl::opt<bool>
FactoryMethodsAsConstructors("enable-objc-factory-method-constructors",
                   llvm::cl::desc("Implicitly import Objective-C factory methods as initializers"),
                   llvm::cl::init(false));

static llvm::cl::opt<bool>
PrintStats("print-stats",
           llvm::cl::desc("Print statistics"),
           llvm::cl::init(false));

static llvm::cl::opt<std::string>
DebugForbidTypecheckPrefix("debug-forbid-typecheck-prefix",
  llvm::cl::desc("Triggers llvm fatal_error if typechecker tries to typecheck "
                 "a decl with the provided prefix name"));

// '-code-completion' options.

static llvm::cl::opt<std::string>
CodeCompletionToken("code-completion-token",
                    llvm::cl::desc("Code completion token name"));

static llvm::cl::opt<bool>
CodeCompletionDiagnostics("code-completion-diagnostics",
                          llvm::cl::desc("Print compiler diagnostics while "
                                         "doing code completion"),
                          llvm::cl::init(false));

static llvm::cl::opt<bool>
CodeCompletionKeywords("code-completion-keywords",
                       llvm::cl::desc("Include keywords in code completion results"),
                       llvm::cl::init(true));

static llvm::cl::opt<std::string>
DebugClientDiscriminator("debug-client-discriminator",
  llvm::cl::desc("A discriminator to prefer in lookups"));

// '-syntax-coloring' options.

static llvm::cl::opt<bool>
TerminalOutput("terminal",
               llvm::cl::desc("Use terminal color for source annotations"));

static llvm::cl::opt<bool>
Typecheck("typecheck",
          llvm::cl::desc("Type check the AST"),
          llvm::cl::init(false));

// AST printing options.

static llvm::cl::opt<bool>
FunctionDefinitions("function-definitions",
                    llvm::cl::desc("Print function bodies"),
                    llvm::cl::init(true));

static llvm::cl::opt<bool>
AbstractAccessors("abstract-accessors",
                  llvm::cl::desc("Hide the concrete accessors used to "
                                 "implement a property or subscript"),
                  llvm::cl::init(true));

static llvm::cl::opt<bool>
PreferTypeRepr("prefer-type-repr",
               llvm::cl::desc("When printing types, prefer printing TypeReprs"),
               llvm::cl::init(true));

static llvm::cl::opt<bool>
FullyQualifiedTypes("fully-qualified-types",
                    llvm::cl::desc("Print fully qualified types"),
                    llvm::cl::init(false));

static llvm::cl::opt<bool>
ExplodePatternBindingDecls(
    "explode-pattern-binding-decls",
    llvm::cl::desc("Separate pattern binding decls into individual var decls"),
    llvm::cl::init(false));

static llvm::cl::opt<std::string>
MangledNameToFind("find-mangled",
    llvm::cl::desc("Print the entity with the given mangled name"));

// Module printing options.

static llvm::cl::list<std::string>
ModuleToPrint("module-to-print",
              llvm::cl::desc("Name of the module to print"));

static llvm::cl::opt<bool>
ModulePrintSubmodules("module-print-submodules",
                      llvm::cl::desc("Recursively print submodules"),
                      llvm::cl::init(false));

static llvm::cl::opt<bool>
ModulePrintHidden("module-print-hidden",
                  llvm::cl::desc("Print non-exported imported or submodules"),
                  llvm::cl::init(false));

static llvm::cl::opt<bool>
ModulePrintSkipOverlay("module-print-skip-overlay",
                  llvm::cl::desc("Skip Swift overlay modules"),
                  llvm::cl::init(false));

static llvm::cl::opt<bool>
FullyQualifiedTypesIfAmbiguous(
    "fully-qualified-types-if-ambiguous",
    llvm::cl::desc("Print types fully-qualified if they would be ambiguous "
                   "otherwise"),
    llvm::cl::init(false));

static llvm::cl::opt<bool>
SynthesizeSugarOnTypes(
    "synthesize-sugar-on-types",
    llvm::cl::desc("Always print Array and Optional with sugar"),
    llvm::cl::init(false));

static llvm::cl::opt<bool>
AnnotatePrint("annotate-print",
               llvm::cl::desc("Annotate AST printing"),
               llvm::cl::init(false));

// AST and module printing options.

static llvm::cl::opt<bool>
PrintImplicitAttrs("print-implicit-attrs",
                   llvm::cl::desc("Print implicit attributes"),
                   llvm::cl::init(false));

static llvm::cl::opt<bool>
PrintAccessibility("print-accessibility",
                   llvm::cl::desc("Print accessibility for all values"),
                   llvm::cl::init(false));

static llvm::cl::opt<bool>
SkipUnavailable("skip-unavailable",
                llvm::cl::desc("Don't print unavailable declarations"),
                llvm::cl::init(false));

static llvm::cl::opt<Accessibility>
AccessibilityFilter(
    llvm::cl::desc("Accessibility filter:"),
    llvm::cl::init(Accessibility::Private),
    llvm::cl::values(
        clEnumValN(Accessibility::Private, "accessibility-filter-private",
            "Print all declarations"),
        clEnumValN(Accessibility::Internal, "accessibility-filter-internal",
            "Print internal and public declarations"),
        clEnumValN(Accessibility::Public, "accessibility-filter-public",
            "Print public declarations"),
        clEnumValEnd));

static llvm::cl::opt<bool>
SkipPrivateStdlibDecls("skip-private-stdlib-decls",
                llvm::cl::desc("Don't print declarations that start with '_'"),
                llvm::cl::init(false));

static llvm::cl::opt<bool>
PrintRegularComments("print-regular-comments",
             llvm::cl::desc("Print regular comments from clang module headers"),
             llvm::cl::init(false));

static llvm::cl::opt<std::string>
CommentsXMLSchema("comments-xml-schema",
                  llvm::cl::desc("Filename of the RelaxNG schema for documentation comments"));

static llvm::cl::list<std::string>
ClangXCC("Xcc", llvm::cl::desc("option to pass to clang"));

} // namespace options

static std::unique_ptr<llvm::MemoryBuffer>
removeCodeCompletionTokens(llvm::MemoryBuffer *Input,
                           StringRef TokenName,
                           unsigned *CodeCompletionOffset) {
  std::string CleanFile =
      ide::removeCodeCompletionTokens(Input->getBuffer(),
                                      TokenName,
                                      CodeCompletionOffset);
  return std::unique_ptr<llvm::MemoryBuffer>(
      llvm::MemoryBuffer::getMemBufferCopy(CleanFile,
                                           Input->getBufferIdentifier()));
}

static int doCodeCompletion(const CompilerInvocation &InitInvok,
                            StringRef SourceFilename,
                            StringRef CodeCompletionToken,
                            bool CodeCompletionDiagnostics,
                            bool CodeCompletionKeywords) {
  llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> FileBufOrErr =
    llvm::MemoryBuffer::getFile(SourceFilename);
  if (!FileBufOrErr) {
    llvm::errs() << "error opening input file: "
                 << FileBufOrErr.getError().message() << '\n';
    return 1;
  }

  unsigned CodeCompletionOffset;

  std::unique_ptr<llvm::MemoryBuffer> CleanFile(
      removeCodeCompletionTokens(FileBufOrErr.get().get(), CodeCompletionToken,
                                 &CodeCompletionOffset));

  if (CodeCompletionOffset == ~0U) {
    llvm::errs() << "could not find code completion token \""
                 << CodeCompletionToken << "\"\n";
    return 1;
  }
  llvm::outs() << "found code completion token " << CodeCompletionToken
               << " at offset " << CodeCompletionOffset << "\n";
  llvm::errs() << "found code completion token " << CodeCompletionToken
               << " at offset " << CodeCompletionOffset << "\n";

  CompilerInvocation Invocation(InitInvok);
  Invocation.setCodeCompletionPoint(CleanFile.get(), CodeCompletionOffset);

  ide::CodeCompletionCache CompletionCache;
  ide::CodeCompletionContext CompletionContext(CompletionCache);

  // Create a CodeCompletionConsumer.
  std::unique_ptr<ide::CodeCompletionConsumer> Consumer(
      new ide::PrintingCodeCompletionConsumer(
          llvm::outs(), CodeCompletionKeywords));

  // Cerate a factory for code completion callbacks that will feed the
  // Consumer.
  std::unique_ptr<CodeCompletionCallbacksFactory> CompletionCallbacksFactory(
      ide::makeCodeCompletionCallbacksFactory(CompletionContext,
                                              *Consumer.get()));

  Invocation.setCodeCompletionFactory(CompletionCallbacksFactory.get());

  CompilerInstance CI;

  PrintingDiagnosticConsumer PrintDiags;
  if (CodeCompletionDiagnostics) {
    // Display diagnostics to stderr.
    CI.addDiagnosticConsumer(&PrintDiags);
  }
  if (CI.setup(Invocation))
    return 1;
  CI.performSema();
  return 0;
}

static int doREPLCodeCompletion(const CompilerInvocation &InitInvok,
                                StringRef SourceFilename) {
  llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> FileBufOrErr =
    llvm::MemoryBuffer::getFile(SourceFilename);
  if (!FileBufOrErr) {
    llvm::errs() << "error opening input file: "
                 << FileBufOrErr.getError().message() << '\n';
    return 1;
  }

  StringRef BufferText = FileBufOrErr.get()->getBuffer();
  // Drop a single newline character from the buffer.
  if (BufferText.endswith("\n"))
    BufferText = BufferText.drop_back(1);

  CompilerInvocation Invocation(InitInvok);
  Invocation.setInputKind(SourceFileKind::REPL);

  CompilerInstance CI;

  // Display diagnostics to stderr.
  PrintingDiagnosticConsumer PrintDiags;
  CI.addDiagnosticConsumer(&PrintDiags);
  if (CI.setup(Invocation))
    return 1;
  CI.performSema();

  SourceFile &SF = CI.getMainModule()->getMainSourceFile(SourceFileKind::REPL);

  REPLCompletions REPLCompl;
  REPLCompl.populate(SF, BufferText);
  llvm::outs() << "Begin completions\n";
  for (StringRef S : REPLCompl.getCompletionList()) {
    llvm::outs() << S << "\n";
  }
  llvm::outs() << "End completions\n";

  return 0;
}

//============================================================================//
// Syntax Coloring
//============================================================================//

namespace {

class PrintSyntaxColorWalker : public ide::SyntaxModelWalker {
  SourceManager &SM;
  unsigned BufferID;
  llvm::raw_ostream &OS;
  bool TerminalOutput;
  const char *BufStart;
  const char *BufEnd;
  const char *CurrBufPtr;

public:
  PrintSyntaxColorWalker(SourceManager &SM,
                         unsigned BufferID,
                         llvm::raw_ostream &OS,
                         bool TerminalOutput)
    : SM(SM), BufferID(BufferID), OS(OS), TerminalOutput(TerminalOutput) {
    CharSourceRange entireRange = SM.getRangeForBuffer(BufferID);
    StringRef Buffer = SM.extractText(entireRange);
    BufStart = Buffer.data();
    BufEnd = Buffer.data() + Buffer.size();
    CurrBufPtr = BufStart;
  }

  bool walkToNodePre(SyntaxNode Node) override {
    if (shouldIgnore(Node))
      return false;

    const char *LocPtr = getPtr(Node.Range.getStart());
    printSourceUntil(LocPtr);
    wrap(Node.Kind, /*Begin=*/true);
    return true;
  }

  bool walkToNodePost(SyntaxNode Node) override {
    if (shouldIgnore(Node))
      return true;

    const char *LocPtr = getPtr(Node.Range.getStart());
    unsigned Length = Node.Range.getByteLength();
    if (Node.Kind == SyntaxNodeKind::CommentLine) {
      if (LocPtr[Length-1] == '\n')
        --Length; // Wrapping should be in the same line.
    }
    printSourceUntil(LocPtr + Length);
    wrap(Node.Kind, /*Begin=*/false);
    return true;
  }

  void wrap(SyntaxNodeKind Kind, bool Begin) {
    if (TerminalOutput) {
      wrapForTerminal(Kind, Begin);
    } else {
      wrapForTest(Kind, Begin);
    }
  }

  bool shouldIgnore(SyntaxNode Node) const {
    const char *LocPtr = getPtr(Node.Range.getStart());
    if (Node.Kind == SyntaxNodeKind::CommentLine && !TerminalOutput) {
      // Ignore CHECK lines.
      if (StringRef(LocPtr, BufEnd - LocPtr).startswith("// CHECK"))
        return true;
    }
    return false;
  }

  const char *getPtr(SourceLoc Loc) const {
    return BufStart + SM.getLocOffsetInBuffer(Loc, BufferID);
  }

  void printSourceUntil(const char *Ptr) {
    assert(Ptr >= CurrBufPtr && Ptr <= BufEnd);
    StringRef Text = StringRef(CurrBufPtr, Ptr-CurrBufPtr);
    // Skip all "// CHECK" lines.
    while (true) {
      size_t Idx = Text.find("// CHECK");
      if (Idx == StringRef::npos)
        break;
      OS << Text.substr(0, Idx);
      Idx = Text.find('\n', Idx);
      Text = Idx == StringRef::npos ? StringRef() : Text.substr(Idx+1);
    }
    OS << Text;
    CurrBufPtr = Ptr;
  }

  void wrapForTest(SyntaxNodeKind Kind, bool Begin) {
    const char *Id = 0;
    switch (Kind) {
    case SyntaxNodeKind::Keyword: Id = "kw"; break;
    // Skip identifier.
    case SyntaxNodeKind::Identifier: return;
    case SyntaxNodeKind::DollarIdent: Id = "dollar"; break;
    case SyntaxNodeKind::Integer: Id = "int"; break;
    case SyntaxNodeKind::Floating: Id = "float"; break;
    case SyntaxNodeKind::String: Id = "str"; break;
    case SyntaxNodeKind::StringInterpolationAnchor: Id = "anchor"; break;
    case SyntaxNodeKind::Character: Id = "char"; break;
    case SyntaxNodeKind::CommentLine: Id = "comment-line"; break;
    case SyntaxNodeKind::CommentBlock: Id = "comment-block"; break;
    case SyntaxNodeKind::CommentMarker: Id = "comment-marker"; break;
    case SyntaxNodeKind::CommentURL: Id = "comment-url"; break;
    case SyntaxNodeKind::TypeId: Id = "type"; break;
    case SyntaxNodeKind::BuildConfigKeyword: Id = "#kw"; break;
    case SyntaxNodeKind::BuildConfigId: Id = "#id"; break;
    case SyntaxNodeKind::AttributeId: Id = "attr-id"; break;
    case SyntaxNodeKind::AttributeBuiltin: Id = "attr-builtin"; break;
    }

    OS << (Begin ? "<" : "</") << Id << '>';
  }

  void wrapForTerminal(SyntaxNodeKind Kind, bool Begin) {
    llvm::raw_ostream::Colors Col;
    switch (Kind) {
    case SyntaxNodeKind::Keyword: Col = llvm::raw_ostream::MAGENTA; break;
    // Skip identifier.
    case SyntaxNodeKind::Identifier: return;
    case SyntaxNodeKind::DollarIdent: Col = llvm::raw_ostream::MAGENTA; break;
    case SyntaxNodeKind::Integer: Col = llvm::raw_ostream::BLUE; break;
    case SyntaxNodeKind::Floating: Col = llvm::raw_ostream::BLUE; break;
    case SyntaxNodeKind::String: Col = llvm::raw_ostream::RED; break;
    case SyntaxNodeKind::StringInterpolationAnchor: Col = llvm::raw_ostream::CYAN; break;
    case SyntaxNodeKind::Character: Col = llvm::raw_ostream::BLUE; break;
    case SyntaxNodeKind::CommentLine: Col = llvm::raw_ostream::GREEN; break;
    case SyntaxNodeKind::CommentBlock: Col = llvm::raw_ostream::GREEN; break;
    case SyntaxNodeKind::CommentMarker: Col = llvm::raw_ostream::MAGENTA; break;
    case SyntaxNodeKind::CommentURL: Col = llvm::raw_ostream::RED; break;
    case SyntaxNodeKind::TypeId: Col = llvm::raw_ostream::CYAN; break;
    case SyntaxNodeKind::BuildConfigKeyword: Col = llvm::raw_ostream::YELLOW; break;
    case SyntaxNodeKind::BuildConfigId: Col = llvm::raw_ostream::YELLOW; break;
    case SyntaxNodeKind::AttributeId: Col = llvm::raw_ostream::CYAN; break;
    case SyntaxNodeKind::AttributeBuiltin: Col = llvm::raw_ostream::MAGENTA; break;
    }

    if (Begin) {
      if (const char *CStr =
          llvm::sys::Process::OutputColor(Col, false, false)) {
        OS << CStr;
      }
    } else {
      OS << llvm::sys::Process::ResetColor();
    }
  }

  void finished() {
    OS << StringRef(CurrBufPtr, BufEnd-CurrBufPtr);
  }
};

}

static int doSyntaxColoring(const CompilerInvocation &InitInvok,
                            StringRef SourceFilename,
                            bool TerminalOutput,
                            bool RunTypeChecker) {
  CompilerInvocation Invocation(InitInvok);
  Invocation.addInputFilename(SourceFilename);

  CompilerInstance CI;

  // Display diagnostics to stderr.
  PrintingDiagnosticConsumer PrintDiags;
  CI.addDiagnosticConsumer(&PrintDiags);
  if (CI.setup(Invocation))
    return 1;
  if (!RunTypeChecker)
    CI.performParseOnly();
  else
    CI.performSema();

  unsigned BufID = CI.getInputBufferIDs().back();
  SourceFile *SF = nullptr;
  for (auto Unit : CI.getMainModule()->getFiles()) {
    SF = dyn_cast<SourceFile>(Unit);
    if (SF)
      break;
  }
  assert(SF && "no source file?");
  ide::SyntaxModelContext ColorContext(*SF);
  PrintSyntaxColorWalker ColorWalker(CI.getSourceMgr(), BufID, llvm::outs(),
                                     TerminalOutput);
  ColorContext.walk(ColorWalker);
  ColorWalker.finished();
  return 0;
}

//============================================================================//
// Structure Annotation
//============================================================================//

class PrintStructureWalker : public ide::SyntaxModelWalker {
  SourceManager &SM;
  llvm::raw_ostream &OS;
  unsigned indentLevel = 0;
public:
  PrintStructureWalker(SourceManager &SM,
                       llvm::raw_ostream &OS)
    : SM(SM), OS(OS) {
  }

  bool walkToSubStructurePre(SyntaxStructureNode Node) override {
    auto Start = SM.getLineAndColumn(Node.Range.getStart());
    auto End = SM.getLineAndColumn(Node.Range.getEnd());

    OS << std::string(indentLevel * 2, ' ');
    switch (Node.Kind) {
    case swift::ide::SyntaxStructureKind::Class:
      OS << "Class ";
      break;
    case swift::ide::SyntaxStructureKind::Struct:
      OS << "Struct ";
      break;
    case swift::ide::SyntaxStructureKind::Protocol:
      OS << "Protocol ";
      break;
    case swift::ide::SyntaxStructureKind::Enum:
      OS << "Enum ";
      break;
    case swift::ide::SyntaxStructureKind::Extension:
      OS << "Extension ";
      break;
    case swift::ide::SyntaxStructureKind::FreeFunction:
      OS << "FFunc ";
      break;
    case swift::ide::SyntaxStructureKind::InstanceFunction:
      OS << "IFunc ";
      break;
    case swift::ide::SyntaxStructureKind::StaticFunction:
      OS << "SFunc ";
      break;
    case swift::ide::SyntaxStructureKind::ClassFunction:
      OS << "CFunc ";
      break;
    case swift::ide::SyntaxStructureKind::GlobalVariable:
      OS << "GVar ";
      break;
    case swift::ide::SyntaxStructureKind::InstanceVariable:
      OS << "Property ";
      break;
    case swift::ide::SyntaxStructureKind::StaticVariable:
      OS << "SVar ";
      break;
    case swift::ide::SyntaxStructureKind::ClassVariable:
      OS << "CVar ";
      break;
    case swift::ide::SyntaxStructureKind::Parameter:
      OS << "Parameter ";
      break;
    case swift::ide::SyntaxStructureKind::BraceStatement:
      OS << "Brace ";
      break;
    case swift::ide::SyntaxStructureKind::CallExpression:
      OS << "Call ";
      break;
    }

    OS << "at " << Start.first << ":" << Start.second << " - " <<
                   End.first << ":" << End.second;
    if (Node.NameRange.isValid()) {
      auto Start = SM.getLineAndColumn(Node.NameRange.getStart());
      auto End = SM.getLineAndColumn(Node.NameRange.getEnd());

      OS << ", name at " << Start.first << ":" << Start.second << " - " <<
                            End.first << ":" << End.second;
    }
    if (!Node.InheritedTypeRanges.empty()) {
      OS << ", inherited types at";
      for (auto &Range : Node.InheritedTypeRanges) {
        auto Start = SM.getLineAndColumn(Range.getStart());
        auto End = SM.getLineAndColumn(Range.getEnd());

        OS << " " << Start.first << ":" << Start.second << " - " <<
                     End.first << ":" << End.second;

      }
    }

    OS << "\n";
    ++indentLevel;

    return true;
  }

  bool walkToSubStructurePost(SyntaxStructureNode Node) override {
    assert(indentLevel > 0);
    --indentLevel;
    return true;
  }

};

static int doStructureAnnotation(const CompilerInvocation &InitInvok,
                                 StringRef SourceFilename) {
  CompilerInvocation Invocation(InitInvok);
  Invocation.addInputFilename(SourceFilename);

  CompilerInstance CI;

  // Display diagnostics to stderr.
  PrintingDiagnosticConsumer PrintDiags;
  CI.addDiagnosticConsumer(&PrintDiags);
  if (CI.setup(Invocation))
    return 1;
  CI.performParseOnly();

  ide::SyntaxModelContext StructureContext(
      CI.getMainModule()->getMainSourceFile(SourceFileKind::Main));
  PrintStructureWalker StructureWalker(CI.getSourceMgr(), llvm::outs());
  StructureContext.walk(StructureWalker);
  return 0;
}

//============================================================================//
// Semantic Annotation
//============================================================================//

namespace {

class AnnotationPrinter : public ide::SourceEntityWalker {
  SourceManager &SM;
  unsigned BufferID;
  llvm::raw_ostream &OS;
  bool TerminalOutput;
  const char *BufStart;
  const char *BufEnd;
  const char *CurrBufPtr;

public:
  AnnotationPrinter(SourceManager &SM,
                    unsigned BufferID,
                    llvm::raw_ostream &OS,
                    bool TerminalOutput)
    : SM(SM), BufferID(BufferID), OS(OS), TerminalOutput(TerminalOutput) {
    CharSourceRange entireRange = SM.getRangeForBuffer(BufferID);
    StringRef Buffer = SM.extractText(entireRange);
    BufStart = Buffer.data();
    BufEnd = Buffer.data() + Buffer.size();
    CurrBufPtr = BufStart;
  }

  void finished() {
    OS << StringRef(CurrBufPtr, BufEnd-CurrBufPtr);
  }

private:
  struct SemanticSourceEntity {
    CharSourceRange Range;
    ValueDecl *Dcl = nullptr;
    TypeDecl *CtorTyRef = nullptr;
    ModuleEntity Mod;
    bool IsRef = true;

    SemanticSourceEntity(CharSourceRange Range,
                         ValueDecl *Dcl,
                         TypeDecl *CtorTyRef,
                         bool IsRef)
      : Range(Range),
        Dcl(Dcl),
        CtorTyRef(CtorTyRef),
        IsRef(IsRef) {}

    SemanticSourceEntity(CharSourceRange Range,
                         ModuleEntity Mod)
      : Range(Range),
        Mod(Mod) {}
  };

  bool walkToDeclPre(Decl *D, CharSourceRange Range) override {
    if (Range.getByteLength() == 0)
      return true;
    if (ValueDecl *VD = dyn_cast<ValueDecl>(D))
      annotateSourceEntity({ Range, VD, nullptr, /*IsRef=*/false});
    return true;
  }

  bool visitDeclReference(ValueDecl *D, CharSourceRange Range,
                          TypeDecl *CtorTyRef) override {
    annotateSourceEntity({ Range, D, CtorTyRef, /*IsRef=*/true });
    return true;
  }

  bool visitCallArgName(Identifier Name, CharSourceRange Range,
                        ValueDecl *D) override {
    annotateSourceEntity({ Range, D, nullptr, /*IsRef=*/true });
    return true;
  }

  bool visitModuleReference(ModuleEntity Mod, CharSourceRange Range) override {
    annotateSourceEntity({ Range, Mod });
    return true;
  }

  void annotateSourceEntity(const SemanticSourceEntity &Entity) {
    const char *LocPtr =
        BufStart + SM.getLocOffsetInBuffer(Entity.Range.getStart(), BufferID);

    unsigned Length = Entity.Range.getByteLength();
    assert(LocPtr >= CurrBufPtr);
    printSourceUntil(LocPtr);
    StringRef NodeText = StringRef(LocPtr, Length);
    if (TerminalOutput) {
      if (!wrapForTerminal(Entity, NodeText))
        OS << NodeText;
    } else {
      if (!wrapForTest(Entity, StringRef(LocPtr, Length)))
        OS << NodeText;
    }
    CurrBufPtr = LocPtr + Length;
  }

  void printSourceUntil(const char *Ptr) {
    StringRef Text = StringRef(CurrBufPtr, Ptr-CurrBufPtr);
    // Skip all "// CHECK" lines.
    while (true) {
      size_t Idx = Text.find("// CHECK");
      if (Idx == StringRef::npos)
        break;
      OS << Text.substr(0, Idx);
      Idx = Text.find('\n', Idx);
      Text = Idx == StringRef::npos ? StringRef() : Text.substr(Idx+1);
    }
    OS << Text;
  }

  void printLoc(SourceLoc Loc, raw_ostream &OS) {
    OS << '@';
    if (Loc.isValid()) {
      auto LineCol = SM.getLineAndColumn(Loc, BufferID);
      OS  << LineCol.first << ':' << LineCol.second;
    }
  }

  bool wrapForTest(const SemanticSourceEntity &Entity, StringRef Text) {
    OS << '<';

    bool IsInSystemModule = false;
    ValueDecl *D = Entity.Dcl;
    if (D) {
      IsInSystemModule = D->getModuleContext()->isSystemModule();
      if (IsInSystemModule)
        OS << 'i';
      if (isa<ConstructorDecl>(D) && Entity.IsRef) {
        OS << "Ctor";
        printLoc(D->getLoc(), OS);
        if (Entity.CtorTyRef) {
          OS << '-';
          OS << Decl::getKindName(Entity.CtorTyRef->getKind());
          printLoc(Entity.CtorTyRef->getLoc(), OS);
        }
      } else {
        OS << Decl::getKindName(D->getKind());
        if (Entity.IsRef)
          printLoc(D->getLoc(), OS);
      }

    } else {
      if (Entity.Mod.isSystemModule())
        OS << 'i';
      OS << "Mod";
    }

    OS << '>';
    OS << Text;
    OS << "</";

    if (D) {
      if (IsInSystemModule)
        OS << 'i';
      if (isa<ConstructorDecl>(D) && Entity.IsRef) {
        OS << "Ctor";
      } else {
        OS << Decl::getKindName(D->getKind());
      }

    } else {
      if (Entity.Mod.isSystemModule())
        OS << 'i';
      OS << "Mod";
    }
    OS << '>';
    return true;
  }

  bool wrapForTerminal(const SemanticSourceEntity &Entity, StringRef Text) {
    llvm::raw_ostream::Colors Col;
    switch (Entity.Dcl->getKind()) {
    default:
      return false;

    case DeclKind::Var:
      Col = llvm::raw_ostream::GREEN;
      break;
    case DeclKind::Func:
    case DeclKind::Constructor:
    case DeclKind::Destructor:
      Col = llvm::raw_ostream::MAGENTA;
      break;
    case DeclKind::Class:
      Col = llvm::raw_ostream::RED;
      break;
    case DeclKind::Struct:
      Col = llvm::raw_ostream::BLUE;
      break;
    case DeclKind::Protocol:
      Col = llvm::raw_ostream::YELLOW;
      break;
    case DeclKind::TypeAlias:
    case DeclKind::AssociatedType:
    case DeclKind::GenericTypeParam:
      Col = llvm::raw_ostream::CYAN; break;
    }

    if (const char *CStr =
        llvm::sys::Process::OutputColor(Col, false, false)) {
      OS << CStr;
    }
    OS << Text;
    OS << llvm::sys::Process::ResetColor();
    return true;
  }
};

} // unnamed namespace

static int doSemanticAnnotation(const CompilerInvocation &InitInvok,
                                StringRef SourceFilename,
                                bool TerminalOutput) {
  CompilerInvocation Invocation(InitInvok);
  Invocation.addInputFilename(SourceFilename);

  CompilerInstance CI;

  // Display diagnostics to stderr.
  PrintingDiagnosticConsumer PrintDiags;
  CI.addDiagnosticConsumer(&PrintDiags);
  if (CI.setup(Invocation))
    return 1;
  CI.performSema();

  unsigned BufID = CI.getInputBufferIDs().back();
  AnnotationPrinter AnnotPrinter(CI.getSourceMgr(), BufID, llvm::outs(),
                                 TerminalOutput);
  AnnotPrinter.walk(*CI.getMainModule());
  AnnotPrinter.finished();
  return 0;
}

static int doInputCompletenessTest(StringRef SourceFilename) {
  llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> FileBufOrErr =
    llvm::MemoryBuffer::getFile(SourceFilename);
  if (!FileBufOrErr) {
    llvm::errs() << "error opening input file: "
                 << FileBufOrErr.getError().message() << '\n';
    return 1;
  }

  llvm::raw_ostream &OS = llvm::outs();
  OS << SourceFilename << ": ";
  if (isSourceInputComplete(std::move(FileBufOrErr.get())).IsComplete) {
    OS << "IS_COMPLETE\n";
  } else {
    OS << "IS_INCOMPLETE\n";
  }
  return 0;
}

//============================================================================//
// AST printing
//============================================================================//

static Module *getModuleByFullName(ASTContext &Context, StringRef ModuleName) {
  SmallVector<std::pair<Identifier, SourceLoc>, 4>
      AccessPath;
  while (!ModuleName.empty()) {
    StringRef SubModuleName;
    std::tie(SubModuleName, ModuleName) = ModuleName.split('.');
    AccessPath.push_back(
        { Context.getIdentifier(SubModuleName), SourceLoc() });
  }
  return Context.getModule(AccessPath);
}

static Module *getModuleByFullName(ASTContext &Context, Identifier ModuleName) {
  return Context.getModule(std::make_pair(ModuleName, SourceLoc()));
}

static int doPrintAST(const CompilerInvocation &InitInvok,
                      StringRef SourceFilename,
                      bool RunTypeChecker,
                      bool FunctionDefinitions,
                      bool AbstractAccessors,
                      bool PreferTypeRepr,
                      bool ExplodePatternBindingDecls,
                      bool PrintImplicitAttrs,
                      bool PrintAccessibility,
                      bool PrintUnavailableDecls,
                      Accessibility AccessibilityFilter,
                      StringRef MangledNameToFind,
                      StringRef DebugClientDiscriminator) {
  CompilerInvocation Invocation(InitInvok);
  Invocation.addInputFilename(SourceFilename);

  CompilerInstance CI;

  // Display diagnostics to stderr.
  PrintingDiagnosticConsumer PrintDiags;
  CI.addDiagnosticConsumer(&PrintDiags);
  if (CI.setup(Invocation))
    return 1;

  std::unique_ptr<DebuggerClient> DebuggerClient;
  if (!DebugClientDiscriminator.empty()) {
    DebuggerClient.reset(
      new PrivateDiscriminatorPreferenceClient(CI.getASTContext(),
                                               DebugClientDiscriminator)
    );
    CI.getMainModule()->setDebugClient(DebuggerClient.get());
  }

  if (!RunTypeChecker)
    CI.performParseOnly();
  else
    CI.performSema();

  PrintOptions Options = PrintOptions::printEverything();
  Options.AbstractAccessors = AbstractAccessors;
  Options.FunctionDefinitions = FunctionDefinitions;
  Options.PreferTypeRepr = PreferTypeRepr;
  Options.ExplodePatternBindingDecls = ExplodePatternBindingDecls;
  Options.PrintImplicitAttrs = PrintImplicitAttrs;
  Options.PrintAccessibility = PrintAccessibility;
  Options.AccessibilityFilter = AccessibilityFilter;
  Options.SkipUnavailable = !PrintUnavailableDecls;

  if (MangledNameToFind.empty()) {
    Module *M = CI.getMainModule();
    M->getMainSourceFile(Invocation.getInputKind()).print(llvm::outs(),
                                                          Options);
    return EXIT_SUCCESS;
  }

  // If we were given a mangled name, do a very simple form of LLDB's logic to
  // look up a type based on that name.
  Demangle::NodePointer node =
    demangle_wrappers::demangleSymbolAsNode(MangledNameToFind);
  using NodeKind = Demangle::Node::Kind;

  if (!node) {
    llvm::errs() << "Unable to demangle name.\n";
    return EXIT_FAILURE;
  }
  node = node->getFirstChild();

  // FIXME: Look up things other than types.
  if (node->getKind() != NodeKind::TypeMangling) {
    llvm::errs() << "Name does not refer to a type.\n";
    return EXIT_FAILURE;
  }
  node = node->getFirstChild();
  assert(node->getKind() == NodeKind::Type);
  node = node->getFirstChild();

  switch (node->getKind()) {
  case NodeKind::Class:
  case NodeKind::Enum:
  case NodeKind::Protocol:
  case NodeKind::Structure:
    break;
  default:
    llvm::errs() << "Name does not refer to a nominal type.\n";
    return EXIT_FAILURE;
  }

  ASTContext &ctx = CI.getASTContext();

  SmallVector<std::pair<DeclName, Identifier>, 4> identifiers;
  do {
    switch (node->getKind()) {
    case NodeKind::Class:
    case NodeKind::Enum:
    case NodeKind::Protocol:
    case NodeKind::Structure:
      break;
    default:
      llvm::errs() << "Name does not refer to a nominal type.\n";
      return EXIT_FAILURE;
    }

    auto nameNode = node->getChild(1);
    switch (nameNode->getKind()) {
    case NodeKind::Identifier:
      identifiers.push_back({ ctx.getIdentifier(nameNode->getText()),
                              Identifier() });
      break;
    case NodeKind::PrivateDeclName:
      identifiers.push_back({
        ctx.getIdentifier(nameNode->getChild(1)->getText()),
        ctx.getIdentifier(nameNode->getChild(0)->getText())
      });
      break;
    default:
      llvm::errs() << "Unsupported name kind.\n";
      return EXIT_FAILURE;
    }

    node = node->getChild(0);
  } while (node->getKind() != NodeKind::Module);

  Module *M = getModuleByFullName(ctx, node->getText());
  SmallVector<ValueDecl *, 4> results;
  M->lookupMember(results, M, identifiers.back().first,
                  identifiers.back().second);

  if (results.empty()) {
    llvm::errs() << "No matching declarations found for "
      << MangledNameToFind << ".\n";
    return EXIT_FAILURE;
  }

  // Progressively perform lookup into matching containers.
  for (auto member : reversed(llvm::makeArrayRef(identifiers).drop_back())) {
    decltype(results) prevResults;
    std::swap(results, prevResults);

    for (auto container : prevResults) {
      M->lookupMember(results, cast<NominalTypeDecl>(container),
                      member.first, member.second);
    }

    if (results.empty()) {
      llvm::errs() << "No matching declarations found for "
        << MangledNameToFind << ".\n";
      return EXIT_FAILURE;
    }
  }

  for (auto *VD : results)
    VD->print(llvm::outs(), Options);

  return EXIT_SUCCESS;
}

static int doPrintLocalTypes(const CompilerInvocation &InitInvok,
                             const std::vector<std::string> ModulesToPrint) {
  using NodeKind = Demangle::Node::Kind;

  CompilerInvocation Invocation(InitInvok);
  CompilerInstance CI;
  PrintingDiagnosticConsumer PrintDiags;
  CI.addDiagnosticConsumer(&PrintDiags);
  if (CI.setup(Invocation))
    return 1;

  auto &Context = CI.getASTContext();

  auto *Stdlib = getModuleByFullName(Context, Context.StdlibModuleName);
  if (!Stdlib)
    return 1;

  int ExitCode = 0;

  PrintOptions Options = PrintOptions::printEverything();

  for (StringRef ModuleName : ModulesToPrint) {
    auto *M = getModuleByFullName(Context, ModuleName);
    if (!M) {
      llvm::errs() << "Couldn't find module " << ModuleName << "\n";
      ExitCode = 1;
      continue;
    }

    SmallVector<TypeDecl *, 10> LocalTypeDecls;
    SmallVector<std::string, 10> MangledNames;

    // Sneak into the module and get all of the local type decls
    M->getLocalTypeDecls(LocalTypeDecls);

    // Simulate already having mangled names
    for (auto LTD : LocalTypeDecls) {
      SmallString<64> MangledName;
      llvm::raw_svector_ostream Buffer(MangledName);
      Mangle::Mangler Mangler(Buffer, /*DWARFMangling*/ true);
      Mangler.mangleTypeForDebugger(LTD->getDeclaredType(), LTD->getDeclContext());
      MangledNames.push_back(Buffer.str());
    }

    // Simulate the demangling / parsing process
    for (auto MangledName : MangledNames) {

      // Global
      auto node = demangle_wrappers::demangleSymbolAsNode(MangledName);

      // TypeMangling
      node = node->getFirstChild();

      // Type
      node = node->getFirstChild();
      auto typeNode = node;

      // Nominal Type
      node = node->getFirstChild();

      switch (node->getKind()) {
        case NodeKind::Structure:
        case NodeKind::Class:
        case NodeKind::Enum:
          break;

        default:
          llvm::errs() << "Expected a nominal type node in " <<
            MangledName << "\n";
          return EXIT_FAILURE;
      }

      while (node->getKind() != NodeKind::LocalDeclName)
        node = node->getChild(1); // local decl name

      // Now simulate the remangling process directly on the
      // LocalDeclName node.
      auto localDeclNameNode = node;

      auto remangled = Demangle::mangleNode(typeNode);

      auto LTD = M->lookupLocalType(remangled);

      if (!LTD) {
        llvm::errs() << "Couldn't find local type " << remangled << "\n";
        return EXIT_FAILURE;
      }

      llvm::outs() << remangled << "\n";

      auto Options = PrintOptions::printEverything();
      Options.PrintAccessibility = false;
      LTD->print(llvm::outs(), Options);
      llvm::outs() << "\n";
    }
  }

  return ExitCode;
}

namespace {
class AnnotatingPrinter : public StreamPrinter {
public:
  using StreamPrinter::StreamPrinter;

  void printDeclPre(const Decl *D) override {
    OS << "<decl:" << Decl::getKindName(D->getKind()) << '>';
  }
  void printDeclLoc(const Decl *D) override {
    OS << "<loc>";
  }
  void printDeclNameEndLoc(const Decl *D) override {
    OS << "</loc>";
  }
  void printDeclPost(const Decl *D) override {
    OS << "</decl>";
  }

  void printTypeRef(const TypeDecl *TD, Identifier Name) override {
    OS << "<ref:" << Decl::getKindName(TD->getKind()) << '>';
    StreamPrinter::printTypeRef(TD, Name);
    OS << "</ref>";
  }
  void printModuleRef(ModuleEntity Mod, Identifier Name) override {
    OS << "<ref:module>";
    StreamPrinter::printModuleRef(Mod, Name);
    OS << "</ref>";
  }
};
}

static int doPrintModules(const CompilerInvocation &InitInvok,
                          const std::vector<std::string> ModulesToPrint,
                          ide::ModuleTraversalOptions TraversalOptions,
                          bool FullyQualifiedTypesIfAmbiguous,
                          bool SynthesizeSugarOnTypes,
                          bool AnnotatePrint,
                          bool AbstractAccessors,
                          bool PrintImplicitAttrs,
                          bool PrintAccessibility,
                          bool PrintUnavailableDecls,
                          bool PrintRegularComments,
                          Accessibility AccessibilityFilter,
                          bool PrintPrivateStdlibDecls) {
  CompilerInvocation Invocation(InitInvok);

  CompilerInstance CI;
  // Display diagnostics to stderr.
  PrintingDiagnosticConsumer PrintDiags;
  CI.addDiagnosticConsumer(&PrintDiags);
  if (CI.setup(Invocation))
    return 1;

  auto &Context = CI.getASTContext();

  // Load standard library so that Clang importer can use it.
  auto *Stdlib = getModuleByFullName(Context, Context.StdlibModuleName);
  if (!Stdlib)
    return 1;

  int ExitCode = 0;

  PrintOptions Options = PrintOptions::printEverything();
  Options.FullyQualifiedTypesIfAmbiguous = FullyQualifiedTypesIfAmbiguous;
  Options.SynthesizeSugarOnTypes = SynthesizeSugarOnTypes;
  Options.AbstractAccessors = AbstractAccessors;
  Options.PrintImplicitAttrs = PrintImplicitAttrs;
  Options.PrintAccessibility = PrintAccessibility;
  Options.AccessibilityFilter = AccessibilityFilter;
  Options.PrintRegularClangComments = PrintRegularComments;
  Options.SkipPrivateStdlibDecls = !PrintPrivateStdlibDecls;
  Options.SkipUnavailable = !PrintUnavailableDecls;

  std::unique_ptr<ASTPrinter> Printer;
  if (AnnotatePrint)
    Printer.reset(new AnnotatingPrinter(llvm::outs()));
  else
    Printer.reset(new StreamPrinter(llvm::outs()));

  for (StringRef ModuleToPrint : ModulesToPrint) {
    if (ModuleToPrint.empty()) {
      ExitCode = 1;
      continue;
    }

    // Get the (sub)module to print.
    auto *M = getModuleByFullName(Context, ModuleToPrint);
    if (!M) {
      ExitCode = 1;
      continue;
    }

    // Split the module path.
    std::vector<StringRef> ModuleName;
    while (!ModuleToPrint.empty()) {
      StringRef SubModuleName;
      std::tie(SubModuleName, ModuleToPrint) = ModuleToPrint.split('.');
      ModuleName.push_back(SubModuleName);
    }
    assert(!ModuleName.empty());

    // FIXME: If ModuleToPrint is a submodule, get its top-level module, which
    // will be the DeclContext for all of its Decls since we don't have first-
    // class submodules.
    if (ModuleName.size() > 1) {
      M = getModuleByFullName(Context, ModuleName[0]);
      if (!M) {
        ExitCode = 1;
        continue;
      }
    }

    printSubmoduleInterface(M, ModuleName, TraversalOptions, *Printer, Options);
  }

  return ExitCode;
}

namespace {
class ASTTypePrinter : public ASTWalker {
  raw_ostream &OS;
  SourceManager &SM;
  const PrintOptions &Options;

  unsigned IndentLevel = 0;

public:
  ASTTypePrinter(SourceManager &SM, const PrintOptions &Options)
      : OS(llvm::outs()), SM(SM), Options(Options) {}

  bool walkToDeclPre(Decl *D) override {
    if (auto *VD = dyn_cast<ValueDecl>(D)) {
      OS.indent(IndentLevel * 2);
      OS << Decl::getKindName(VD->getKind()) << "Decl '''"
         << VD->getName().str() << "''' ";
      VD->getType().print(OS, Options);
      OS << "\n";
    }
    IndentLevel++;
    return true;
  }

  bool walkToDeclPost(Decl *D) override {
    IndentLevel--;
    return true;
  }

  std::pair<bool, Expr *> walkToExprPre(Expr *E) override {
    StringRef SourceCode{ "<unknown>" };
    unsigned Line = ~0U;

    SourceRange SR = E->getSourceRange();
    if (SR.isValid()) {
      unsigned BufferID = SM.findBufferContainingLoc(SR.Start);
      SourceLoc EndCharLoc = Lexer::getLocForEndOfToken(SM, SR.End);
      SourceCode = SM.extractText({ SR.Start,
                                    SM.getByteDistance(SR.Start, EndCharLoc) });
      unsigned Column;
      std::tie(Line, Column) = SM.getLineAndColumn(SR.Start, BufferID);
    }

    OS.indent(IndentLevel * 2);
    OS << Expr::getKindName(E->getKind()) << "Expr";
    if (Line != ~0U)
      OS << ":" << Line;
    OS << " '''" << SourceCode << "''' ";
    E->getType().print(OS, Options);
    OS << "\n";
    IndentLevel++;
    return { true, E };
  }

  Expr *walkToExprPost(Expr *E) override {
    IndentLevel--;
    return E;
  }
};
} // unnamed namespace

static int doPrintTypes(const CompilerInvocation &InitInvok,
                        StringRef SourceFilename,
                        bool FullyQualifiedTypes) {
  CompilerInvocation Invocation(InitInvok);
  Invocation.addInputFilename(SourceFilename);

  CompilerInstance CI;
  // Display diagnostics to stderr.
  PrintingDiagnosticConsumer PrintDiags;
  CI.addDiagnosticConsumer(&PrintDiags);
  if (CI.setup(Invocation))
    return 1;
  CI.performSema();

  PrintOptions Options = PrintOptions::printEverything();
  Options.FullyQualifiedTypes = FullyQualifiedTypes;
  ASTTypePrinter Printer(CI.getSourceMgr(), Options);

  CI.getMainModule()->walk(Printer);

  return 0;
}

namespace {
class ASTCommentPrinter : public ASTWalker {
  raw_ostream &OS;
  SourceManager &SM;
  XMLValidator &TheXMLValidator;

public:
  ASTCommentPrinter(SourceManager &SM, XMLValidator &TheXMLValidator)
      : OS(llvm::outs()), SM(SM), TheXMLValidator(TheXMLValidator) {}

  StringRef getBufferIdentifier(SourceLoc Loc) {
    unsigned BufferID = SM.findBufferContainingLoc(Loc);
    return SM.getIdentifierForBuffer(BufferID);
  }

  void printWithEscaping(StringRef Str) {
    for (char C : Str) {
      switch (C) {
      case '\n': OS << "\\n"; break;
      case '\r': OS << "\\r"; break;
      case '\t': OS << "\\t"; break;
      case '\v': OS << "\\v"; break;
      case '\f': OS << "\\f"; break;
      default:   OS << C;     break;
      }
    }
  }

  void printDeclName(const ValueDecl *VD) {
    if (auto *NTD = dyn_cast<NominalTypeDecl>(VD->getDeclContext())) {
      Identifier Id = NTD->getName();
      if (!Id.empty())
        OS << Id.str() << ".";
    }
    Identifier Id = VD->getName();
    if (!Id.empty()) {
      OS << Id.str();
      return;
    }
    if (auto FD = dyn_cast<FuncDecl>(VD)) {
      if (auto *ASD = FD->getAccessorStorageDecl()) {
        switch (FD->getAccessorKind()) {
        case AccessorKind::NotAccessor:
          llvm_unreachable("is not an accessor?");
        case AccessorKind::IsGetter:
          OS << "<getter for ";
          break;
        case AccessorKind::IsSetter:
          OS << "<setter for ";
          break;
        case AccessorKind::IsWillSet:
          OS << "<willSet for ";
          break;
        case AccessorKind::IsDidSet:
          OS << "<didSet for ";
          break;
        case AccessorKind::IsAddressor:
          OS << "<addressor for ";
          break;
        case AccessorKind::IsMutableAddressor:
          OS << "<mutableAddressor for ";
          break;
        case AccessorKind::IsMaterializeForSet:
          OS << "<materializeForSet for ";
          break;
        }
        printDeclName(ASD);
        OS << ">";
        return;
      }
    }
    OS << "<anonymous>";
  }

  void printRawComment(const RawComment &RC) {
    OS << "RawComment=";
    if (RC.isEmpty()) {
      OS << "none";
      return;
    }
    OS << "[";
    for (auto &SRC : RC.Comments)
      printWithEscaping(SRC.RawText);
    OS << "]";
  }

  void printBriefComment(StringRef Brief) {
    OS << "BriefComment=";
    if (Brief.empty()) {
      OS << "none";
      return;
    }
    OS << "[";
    printWithEscaping(Brief);
    OS << "]";
  }

  void printFullComment(const Decl *D) {
    std::string XML;
    {
      llvm::raw_string_ostream OS(XML);
      getDocumentationCommentAsXML(D, OS);
    }
    OS << "FullCommentAsXML=";
    if (XML.empty()) {
      OS << "none";
      return;
    }
    OS << "[";
    printWithEscaping(XML);
    OS << "]";

    auto Status = TheXMLValidator.validate(XML);
    switch (Status.Code) {
    case XMLValidator::ErrorCode::Valid:
      OS << " CommentXMLValid";
      break;

    case XMLValidator::ErrorCode::NotCompiledIn:
      OS << " ValidationSkipped=[libxml is missing]";
      break;

    case XMLValidator::ErrorCode::NoSchema:
      OS << " ValidationSkipped=[schema is not set]";
      break;

    case XMLValidator::ErrorCode::BadSchema:
      OS << " CommentXMLInvalid=[bad schema file]";
      break;

    case XMLValidator::ErrorCode::NotWellFormed:
      OS << " CommentXMLInvalid=[not well-formed XML: " << Status.Message
         << "]";
      break;

    case XMLValidator::ErrorCode::NotValid:
      OS << " CommentXMLInvalid=[not valid XML: " << Status.Message << "]";
      break;

    case XMLValidator::ErrorCode::InternalError:
      OS << " CommentXMLInvalid=[libxml error]";
      break;
    }
  }

  bool walkToDeclPre(Decl *D) override {
    if (D->isImplicit())
      return true;

    if (auto *VD = dyn_cast<ValueDecl>(D)) {
      SourceLoc Loc = D->getLoc();
      if (Loc.isValid()) {
        auto LineAndColumn = SM.getLineAndColumn(Loc);
        OS << getBufferIdentifier(VD->getLoc())
           << ":" << LineAndColumn.first << ":" << LineAndColumn.second << ": ";
      }
      OS << Decl::getKindName(VD->getKind()) << "/";
      printDeclName(VD);

      OS << " ";
      printRawComment(D->getRawComment());
      OS << " ";
      printBriefComment(D->getBriefComment());
      OS << " ";
      printFullComment(D);
      OS << "\n";
    }
    return true;
  }
};
} // unnamed namespace

static int doPrintComments(const CompilerInvocation &InitInvok,
                           StringRef SourceFilename,
                           StringRef CommentsXMLSchema) {
  CompilerInvocation Invocation(InitInvok);
  Invocation.addInputFilename(SourceFilename);
  Invocation.getLangOptions().AttachCommentsToDecls = true;

  CompilerInstance CI;
  // Display diagnostics to stderr.
  PrintingDiagnosticConsumer PrintDiags;
  CI.addDiagnosticConsumer(&PrintDiags);
  if (CI.setup(Invocation))
    return 1;
  CI.performSema();

  XMLValidator TheXMLValidator;
  TheXMLValidator.setSchema(CommentsXMLSchema);

  ASTCommentPrinter Printer(CI.getSourceMgr(), TheXMLValidator);

  CI.getMainModule()->walk(Printer);

  return 0;
}

static int doPrintModuleComments(const CompilerInvocation &InitInvok,
                                 const std::vector<std::string> ModulesToPrint,
                                 StringRef CommentsXMLSchema) {
  CompilerInvocation Invocation(InitInvok);

  CompilerInstance CI;
  // Display diagnostics to stderr.
  PrintingDiagnosticConsumer PrintDiags;
  CI.addDiagnosticConsumer(&PrintDiags);
  if (CI.setup(Invocation))
    return 1;

  auto &Context = CI.getASTContext();

  // Load standard library so that Clang importer can use it.
  auto *Stdlib = getModuleByFullName(Context, Context.StdlibModuleName);
  if (!Stdlib)
    return 1;

  XMLValidator TheXMLValidator;
  TheXMLValidator.setSchema(CommentsXMLSchema);

  ASTCommentPrinter Printer(CI.getSourceMgr(), TheXMLValidator);

  int ExitCode = 0;
  for (StringRef ModuleToPrint : ModulesToPrint) {
    auto *M = getModuleByFullName(Context, ModuleToPrint);
    if (!M) {
      ExitCode = -1;
      continue;
    }


    M->walk(Printer);
  }

  return ExitCode;
}

static int doPrintModuleImports(const CompilerInvocation &InitInvok,
                                const std::vector<std::string> ModulesToPrint) {
  CompilerInvocation Invocation(InitInvok);

  CompilerInstance CI;
  // Display diagnostics to stderr.
  PrintingDiagnosticConsumer PrintDiags;
  CI.addDiagnosticConsumer(&PrintDiags);
  if (CI.setup(Invocation))
    return 1;

  auto &Context = CI.getASTContext();

  // Load standard library so that Clang importer can use it.
  auto *Stdlib = getModuleByFullName(Context, Context.StdlibModuleName);
  if (!Stdlib)
    return 1;

  int ExitCode = 0;
  for (StringRef ModuleToPrint : ModulesToPrint) {
    auto *M = getModuleByFullName(Context, ModuleToPrint);
    if (!M) {
      ExitCode = -1;
      continue;
    }

    auto isClangModule = [](const Module *M) -> bool {
      if (!M->getFiles().empty())
        if (M->getFiles().front()->getKind() == FileUnitKind::ClangModule)
          return true;
      return false;
    };

    SmallVector<Module::ImportedModule, 16> scratch;
    M->forAllVisibleModules({}, [&](const Module::ImportedModule &next) {
      llvm::outs() << next.second->Name;
      if (isClangModule(next.second))
        llvm::outs() << " (Clang)";
      llvm::outs() << ":\n";

      scratch.clear();
      next.second->getImportedModules(scratch, Module::ImportFilter::Public);
      for (auto &import : scratch) {
        llvm::outs() << "\t" << import.second->Name;
        for (auto accessPathPiece : import.first) {
          llvm::outs() << "." << accessPathPiece.first;
        }

        if (isClangModule(import.second))
          llvm::outs() << " (Clang)";
        llvm::outs() << "\n";
      }
    });
  }

  return ExitCode;
}

//============================================================================//
// Print USRs
//============================================================================//

namespace {

class USRPrinter : public ide::SourceEntityWalker {
  SourceManager &SM;
  unsigned BufferID;
  llvm::raw_ostream &OS;

public:
  USRPrinter(SourceManager &SM, unsigned BufferID, llvm::raw_ostream &OS)
    : SM(SM), BufferID(BufferID), OS(OS) { }

private:
  bool walkToDeclPre(Decl *D, CharSourceRange Range) override {
    if (ValueDecl *VD = dyn_cast<ValueDecl>(D))
      printUSR(VD, Range.getStart());
    return true;
  }

  bool walkToExprPre(Expr *E) override {
    if (auto *DRE = dyn_cast<DeclRefExpr>(E))
      printUSR(DRE->getDecl(), E->getLoc());
    return true;
  }

  void printUSR(const ValueDecl *VD, SourceLoc Loc) {
    printLoc(Loc);
    OS << ' ';
    if (ide::printDeclUSR(VD, OS))
      OS << "ERROR:no-usr";
    OS << '\n';
  }

  void printLoc(SourceLoc Loc) {
    if (Loc.isValid()) {
      auto LineCol = SM.getLineAndColumn(Loc, BufferID);
      OS << LineCol.first << ':' << LineCol.second;
    }
  }
};

} // unnamed namespace

static int doPrintUSRs(const CompilerInvocation &InitInvok,
                       StringRef SourceFilename) {
  CompilerInvocation Invocation(InitInvok);
  Invocation.addInputFilename(SourceFilename);

  // FIXME: Arggh, we need to get rid of this thing.
  ClangImporterOptions &ImporterOpts = Invocation.getClangImporterOptions();
  ImporterOpts.ExtraArgs.push_back("-Xclang");
  ImporterOpts.ExtraArgs.push_back("-detailed-preprocessing-record");

  CompilerInstance CI;
  // Display diagnostics to stderr.
  PrintingDiagnosticConsumer PrintDiags;
  CI.addDiagnosticConsumer(&PrintDiags);
  if (CI.setup(Invocation))
    return 1;
  CI.performSema();

  unsigned BufID = CI.getInputBufferIDs().back();
  USRPrinter Printer(CI.getSourceMgr(), BufID, llvm::outs());
  Printer.walk(*CI.getMainModule());
  return 0;
}

static int doParseReST(StringRef SourceFilename) {
  llvm::rest::ReSTContext Context;
  llvm::rest::SourceManager<unsigned> SM;
  llvm::SmallString<64> DocutilsXML;
  llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> FileBufOrErr =
    llvm::MemoryBuffer::getFileOrSTDIN(SourceFilename);
  if (!FileBufOrErr) {
    llvm::errs() << "error opening input file: "
                 << FileBufOrErr.getError().message() << '\n';
    return 1;
  }

  llvm::rest::LineList LL({});
  {
    SmallVector<StringRef, 16> Lines;
    splitIntoLines(FileBufOrErr.get()->getBuffer(), Lines);
    llvm::rest::LineListBuilder Builder;
    for (auto S : Lines) {
      Builder.addLine(S, SM.registerLine(S, 0));
    }
    LL = Builder.takeLineList(Context);
  }
  auto *TheDocument = parseDocument(Context, LL);
  {
    llvm::raw_svector_ostream OS(DocutilsXML);
    convertToDocutilsXML(TheDocument, OS);
  }
  llvm::outs() << DocutilsXML.str();
  return 0;
}

static int doTestCreateCompilerInvocation(ArrayRef<const char *> Args) {
  PrintingDiagnosticConsumer PDC;
  SourceManager SM;
  DiagnosticEngine Diags(SM);
  Diags.addConsumer(PDC);

  std::unique_ptr<CompilerInvocation> CI =
    driver::createCompilerInvocation(Args, Diags);

  if (!CI) {
    llvm::errs() << "error: unable to create a CompilerInvocation\n";
    return 1;
  }

  return 0;
}

// This function isn't referenced outside its translation unit, but it
// can't use the "static" keyword because its address is used for
// getMainExecutable (since some platforms don't support taking the
// address of main, and some platforms can't implement getMainExecutable
// without being given the address of a function in the main executable).
void anchorForGetMainExecutable() {}

int main(int argc, char *argv[]) {
  // Print a stack trace if we signal out.
  llvm::sys::PrintStackTraceOnErrorSignal();
  llvm::PrettyStackTraceProgram X(argc, argv);
  llvm::InitializeAllTargets();

  if (argc > 1) {
    // Handle integrated test tools which do not use
    // llvm::cl::ParseCommandLineOptions.
    StringRef FirstArg(argv[1]);
    if (FirstArg == "-test-createCompilerInvocation") {
      ArrayRef<const char *> Args(argv + 2, argc - 2);
      return doTestCreateCompilerInvocation(Args);
    }
  }

  llvm::cl::ParseCommandLineOptions(argc, argv, "Swift IDE Test\n");

  if (options::Action == ActionType::None) {
    llvm::errs() << "action required\n";
    llvm::cl::PrintHelpMessage();
    return 1;
  }

  if (options::Action == ActionType::TestCreateCompilerInvocation) {
    llvm::errs() << "-test-createCompilerInvocation must be specified before "
                    "all other arguments\n";
    return 1;
  }

  if (options::Action == ActionType::GenerateModuleAPIDescription) {
    return doGenerateModuleAPIDescription(
        llvm::sys::fs::getMainExecutable(
            argv[0], reinterpret_cast<void *>(&anchorForGetMainExecutable)),
        options::InputFilenames);
  }

  if (options::Action == ActionType::GenerateModuleAPIDescription) {
    llvm::errs() << "unimplemented\n";
    return 1;
  }

  if (options::SourceFilename.empty()) {
    llvm::errs() << "source file required\n";
    llvm::cl::PrintHelpMessage();
    return 1;
  }

  // If no SDK was specified via -sdk, check environment variable SDKROOT.
  if (options::SDK.getNumOccurrences() == 0) {
    const char *SDKROOT = getenv("SDKROOT");
    if (SDKROOT)
      options::SDK = SDKROOT;
  }

  if (options::PrintStats)
    llvm::EnableStatistics();

  CompilerInvocation InitInvok;

  for (auto &File : options::InputFilenames)
    InitInvok.addInputFilename(File);
  if (!options::InputFilenames.empty())
    InitInvok.setInputKind(SourceFileKind::Library);

  InitInvok.setMainExecutablePath(
      llvm::sys::fs::getMainExecutable(argv[0],
          reinterpret_cast<void *>(&anchorForGetMainExecutable)));

  InitInvok.setModuleName("swift_ide_test");

  InitInvok.setSDKPath(options::SDK);
  if (!options::Triple.empty())
    InitInvok.setTargetTriple(options::Triple);
  InitInvok.getClangImporterOptions().ModuleCachePath =
    options::ModuleCachePath;
  InitInvok.setImportSearchPaths(options::ImportPaths);
  InitInvok.setFrameworkSearchPaths(options::FrameworkPaths);
  InitInvok.getFrontendOptions().EnableSourceImport |=
    options::EnableSourceImport;
  InitInvok.getFrontendOptions().ImplicitObjCHeaderPath =
    options::ImportObjCHeader;
  InitInvok.getLangOptions().SplitPrepositions |= options::SplitObjCSelectors;
  InitInvok.getLangOptions().EnableAccessControl =
    !options::DisableAccessControl;
  InitInvok.getClangImporterOptions().InferImplicitProperties |=
    options::ImplicitProperties;
  InitInvok.getClangImporterOptions().ImportForwardDeclarations |=
    options::ObjCForwardDeclarations;
  if (!options::ResourceDir.empty()) {
    InitInvok.setRuntimeResourcePath(options::ResourceDir);
  }
  for (auto &Arg : options::ClangXCC) {
    InitInvok.getClangImporterOptions().ExtraArgs.push_back(Arg);
  }
  InitInvok.getLangOptions().DebugForbidTypecheckPrefix =
    options::DebugForbidTypecheckPrefix;

  // Force these options, which are factored out for staging purposes.
  InitInvok.getLangOptions().UsePrivateDiscriminators = true;
  Mangle::Mangler::UsePrivateDiscriminators = true;

  for (auto ConfigName : options::BuildConfigs)
    InitInvok.getLangOptions().addBuildConfigOption(ConfigName);

  int ExitCode;

  switch (options::Action) {
  case ActionType::None:
  case ActionType::TestCreateCompilerInvocation:
  case ActionType::GenerateModuleAPIDescription:
  case ActionType::DiffModuleAPI:
    llvm_unreachable("should be handled above");

  case ActionType::CodeCompletion:
    if (options::CodeCompletionToken.empty()) {
      llvm::errs() << "code completion token name required\n";
      return 1;
    }
    ExitCode = doCodeCompletion(InitInvok,
                                options::SourceFilename,
                                options::CodeCompletionToken,
                                options::CodeCompletionDiagnostics,
                                options::CodeCompletionKeywords);
    break;

  case ActionType::REPLCodeCompletion:
    ExitCode = doREPLCodeCompletion(InitInvok, options::SourceFilename);
    break;

  case ActionType::SyntaxColoring:
    ExitCode = doSyntaxColoring(InitInvok,
                                options::SourceFilename,
                                options::TerminalOutput,
                                options::Typecheck);
    break;

  case ActionType::Structure:
    ExitCode = doStructureAnnotation(InitInvok, options::SourceFilename);
    break;

  case ActionType::Annotation:
    ExitCode = doSemanticAnnotation(InitInvok,
                                    options::SourceFilename,
                                    options::TerminalOutput);
    break;

  case ActionType::TestInputCompleteness:
    ExitCode = doInputCompletenessTest(options::SourceFilename);
    break;

  case ActionType::PrintASTNotTypeChecked:
  case ActionType::PrintASTTypeChecked: {
    bool RunTypeChecker = (options::Action == ActionType::PrintASTTypeChecked);
    ExitCode = doPrintAST(InitInvok,
                          options::SourceFilename,
                          RunTypeChecker,
                          /*FunctionDefinitions=*/options::FunctionDefinitions,
                          options::AbstractAccessors,
                          /*PreferTypeRepr=*/options::PreferTypeRepr,
                          options::ExplodePatternBindingDecls,
                          options::PrintImplicitAttrs,
                          options::PrintAccessibility,
                          !options::SkipUnavailable,
                          options::AccessibilityFilter,
                          options::MangledNameToFind,
                          options::DebugClientDiscriminator);
    break;
  }
  case ActionType::PrintLocalTypes:
    ExitCode = doPrintLocalTypes(InitInvok, options::ModuleToPrint);
    break;

  case ActionType::PrintModule: {
    ide::ModuleTraversalOptions TraversalOptions;
    if (options::ModulePrintSubmodules)
      TraversalOptions |= ide::ModuleTraversal::VisitSubmodules;
    if (options::ModulePrintHidden)
      TraversalOptions |= ide::ModuleTraversal::VisitHidden;
    if (options::ModulePrintSkipOverlay)
      TraversalOptions |= ide::ModuleTraversal::SkipOverlay;

    ExitCode = doPrintModules(
        InitInvok, options::ModuleToPrint, TraversalOptions,
        options::FullyQualifiedTypesIfAmbiguous,
        options::SynthesizeSugarOnTypes,
        options::AnnotatePrint,
        options::AbstractAccessors,
        options::PrintImplicitAttrs,
        options::PrintAccessibility,
        !options::SkipUnavailable,
        options::PrintRegularComments,
        options::AccessibilityFilter,
        !options::SkipPrivateStdlibDecls);
    break;
  }

  case ActionType::PrintTypes:
    ExitCode = doPrintTypes(InitInvok, options::SourceFilename,
                            options::FullyQualifiedTypes);
    break;

  case ActionType::PrintComments:
    ExitCode = doPrintComments(InitInvok, options::SourceFilename,
                               options::CommentsXMLSchema);
    break;

  case ActionType::PrintModuleComments:
    ExitCode = doPrintModuleComments(InitInvok, options::ModuleToPrint,
                                     options::CommentsXMLSchema);
    break;

  case ActionType::PrintModuleImports:
    ExitCode = doPrintModuleImports(InitInvok, options::ModuleToPrint);
    break;

  case ActionType::PrintUSRs:
    ExitCode = doPrintUSRs(InitInvok, options::SourceFilename);
    break;

  case ActionType::ParseReST:
    ExitCode = doParseReST(options::SourceFilename);
    break;
  }

  if (options::PrintStats)
    llvm::PrintStatistics();

  return ExitCode;
}