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//===--- swift_synthesize_interface_main.cpp - Swift interface synthesis --===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
//
// Prints the synthesized Swift interface for a Clang module.
//
//===----------------------------------------------------------------------===//
#include "swift/AST/ASTPrinter.h"
#include "swift/AST/DiagnosticsFrontend.h"
#include "swift/Basic/LLVM.h"
#include "swift/Basic/LLVMInitialize.h"
#include "swift/Basic/Version.h"
#include "swift/Frontend/Frontend.h"
#include "swift/Frontend/PrintingDiagnosticConsumer.h"
#include "swift/IDE/ModuleInterfacePrinting.h"
#include "swift/Option/Options.h"
#include "swift/Parse/ParseVersion.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/raw_ostream.h"
using namespace swift;
using namespace options;
int swift_synthesize_interface_main(ArrayRef<const char *> Args,
const char *Argv0, void *MainAddr) {
INITIALIZE_LLVM();
CompilerInvocation Invocation;
CompilerInstance CI;
PrintingDiagnosticConsumer DiagPrinter;
auto &Diags = CI.getDiags();
Diags.addConsumer(DiagPrinter);
std::unique_ptr<llvm::opt::OptTable> Table = createSwiftOptTable();
unsigned MissingIndex;
unsigned MissingCount;
llvm::opt::InputArgList ParsedArgs = Table->ParseArgs(
Args, MissingIndex, MissingCount, SwiftSynthesizeInterfaceOption);
if (MissingCount) {
Diags.diagnose(SourceLoc(), diag::error_missing_arg_value,
ParsedArgs.getArgString(MissingIndex), MissingCount);
return EXIT_FAILURE;
}
if (ParsedArgs.hasArg(OPT_UNKNOWN)) {
for (const auto *A : ParsedArgs.filtered(OPT_UNKNOWN)) {
Diags.diagnose(SourceLoc(), diag::error_unknown_arg,
A->getAsString(ParsedArgs));
}
return EXIT_FAILURE;
}
auto MainExecutablePath = llvm::sys::fs::getMainExecutable(Argv0, MainAddr);
if (ParsedArgs.getLastArg(OPT_help) || Args.empty()) {
std::string ExecutableName =
llvm::sys::path::stem(MainExecutablePath).str();
Table->printHelp(llvm::outs(), ExecutableName.c_str(),
"Swift Interface Synthesizer",
SwiftSynthesizeInterfaceOption, 0,
/*ShowAllAliases*/ false);
return EXIT_FAILURE;
}
std::string ModuleName;
if (auto *A = ParsedArgs.getLastArg(OPT_module_name)) {
ModuleName = A->getValue();
} else {
Diags.diagnose(SourceLoc(), diag::error_option_required, "-module-name");
return EXIT_FAILURE;
}
llvm::Triple Target;
if (auto *A = ParsedArgs.getLastArg(OPT_target)) {
Target = llvm::Triple(A->getValue());
} else {
Diags.diagnose(SourceLoc(), diag::error_option_required, "-target");
return EXIT_FAILURE;
}
std::string OutputFile;
if (auto *A = ParsedArgs.getLastArg(OPT_o)) {
OutputFile = A->getValue();
} else {
OutputFile = "-";
}
Invocation.setMainExecutablePath(MainExecutablePath);
Invocation.setModuleName("swift_synthesize_interface");
if (auto *A = ParsedArgs.getLastArg(OPT_resource_dir)) {
Invocation.setRuntimeResourcePath(A->getValue());
}
std::string SDK = "";
if (auto *A = ParsedArgs.getLastArg(OPT_sdk)) {
SDK = A->getValue();
}
Invocation.setSDKPath(SDK);
Invocation.setTargetTriple(Target);
for (const auto *A : ParsedArgs.filtered(OPT_Xcc)) {
Invocation.getClangImporterOptions().ExtraArgs.push_back(A->getValue());
}
std::vector<SearchPathOptions::FrameworkSearchPath> FrameworkSearchPaths;
for (const auto *A : ParsedArgs.filtered(OPT_F)) {
FrameworkSearchPaths.push_back({A->getValue(), /*isSystem*/ false});
}
for (const auto *A : ParsedArgs.filtered(OPT_Fsystem)) {
FrameworkSearchPaths.push_back({A->getValue(), /*isSystem*/ true});
}
Invocation.setFrameworkSearchPaths(FrameworkSearchPaths);
Invocation.getSearchPathOptions().LibrarySearchPaths =
ParsedArgs.getAllArgValues(OPT_L);
Invocation.setImportSearchPaths(ParsedArgs.getAllArgValues(OPT_I));
Invocation.getLangOptions().EnableObjCInterop = Target.isOSDarwin();
Invocation.getLangOptions().setCxxInteropFromArgs(ParsedArgs, Diags);
std::string ModuleCachePath = "";
if (auto *A = ParsedArgs.getLastArg(OPT_module_cache_path)) {
ModuleCachePath = A->getValue();
}
Invocation.setClangModuleCachePath(ModuleCachePath);
Invocation.getClangImporterOptions().ModuleCachePath = ModuleCachePath;
Invocation.getClangImporterOptions().ImportForwardDeclarations = true;
Invocation.setDefaultPrebuiltCacheIfNecessary();
if (auto *A = ParsedArgs.getLastArg(OPT_swift_version)) {
using version::Version;
auto SwiftVersion = A->getValue();
bool isValid = false;
if (auto Version = VersionParser::parseVersionString(
SwiftVersion, SourceLoc(), nullptr)) {
if (auto Effective = Version.value().getEffectiveLanguageVersion()) {
Invocation.getLangOptions().EffectiveLanguageVersion = *Effective;
isValid = true;
}
}
if (!isValid) {
Diags.diagnose(SourceLoc(), diag::error_invalid_arg_value,
"-swift-version", SwiftVersion);
return EXIT_FAILURE;
}
}
std::string InstanceSetupError;
if (CI.setup(Invocation, InstanceSetupError)) {
llvm::outs() << InstanceSetupError << '\n';
return EXIT_FAILURE;
}
auto M = CI.getASTContext().getModuleByName(ModuleName);
if (!M) {
llvm::errs() << "Couldn't load module '" << ModuleName << '\''
<< " in the current SDK and search paths.\n";
SmallVector<Identifier, 32> VisibleModuleNames;
CI.getASTContext().getVisibleTopLevelModuleNames(VisibleModuleNames);
if (VisibleModuleNames.empty()) {
llvm::errs() << "Could not find any modules.\n";
} else {
std::sort(VisibleModuleNames.begin(), VisibleModuleNames.end(),
[](const Identifier &A, const Identifier &B) -> bool {
return A.str() < B.str();
});
llvm::errs() << "Current visible modules:\n";
for (const auto &ModuleName : VisibleModuleNames) {
llvm::errs() << ModuleName.str() << "\n";
}
}
return EXIT_FAILURE;
}
if (M->failedToLoad()) {
llvm::errs() << "Error: Failed to load the module '" << ModuleName
<< "'. Are you missing build dependencies or "
"include/framework directories?\n"
<< "See the previous error messages for details. Aborting.\n";
return EXIT_FAILURE;
}
std::error_code EC;
llvm::raw_fd_ostream fs(OutputFile, EC);
if (EC) {
llvm::errs() << "Cannot open output file: " << OutputFile << "\n";
return EXIT_FAILURE;
}
PrintOptions printOpts =
PrintOptions::printModuleInterface(/*printFullConvention=*/true);
if (ParsedArgs.hasArg(OPT_print_fully_qualified_types)) {
printOpts.FullyQualifiedTypes = true;
}
swift::OptionSet<swift::ide::ModuleTraversal> traversalOpts = std::nullopt;
if (ParsedArgs.hasArg(OPT_include_submodules)) {
traversalOpts = swift::ide::ModuleTraversal::VisitSubmodules;
}
StreamPrinter printer(fs);
ide::printModuleInterface(M, /*GroupNames=*/{}, traversalOpts, printer,
printOpts, /*PrintSynthesizedExtensions=*/false);
return EXIT_SUCCESS;
}
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