[clang-doc] Reland "[clang-doc] Setup clang-doc frontend framework"
Fixed windows release build tests.
llvm-svn: 328270
diff --git a/clang-tools-extra/clang-doc/tool/ClangDocMain.cpp b/clang-tools-extra/clang-doc/tool/ClangDocMain.cpp
new file mode 100644
index 0000000..51c3aa9
--- /dev/null
+++ b/clang-tools-extra/clang-doc/tool/ClangDocMain.cpp
@@ -0,0 +1,114 @@
+//===-- ClangDocMain.cpp - ClangDoc -----------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This tool for generating C and C++ documenation from source code
+// and comments. Generally, it runs a LibTooling FrontendAction on source files,
+// mapping each declaration in those files to its USR and serializing relevant
+// information into LLVM bitcode. It then runs a pass over the collected
+// declaration information, reducing by USR. There is an option to dump this
+// intermediate result to bitcode. Finally, it hands the reduced information
+// off to a generator, which does the final parsing from the intermediate
+// representation to the desired output format.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ClangDoc.h"
+#include "clang/AST/AST.h"
+#include "clang/AST/Decl.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/ASTMatchers/ASTMatchersInternal.h"
+#include "clang/Driver/Options.h"
+#include "clang/Frontend/FrontendActions.h"
+#include "clang/Tooling/CommonOptionsParser.h"
+#include "clang/Tooling/Execution.h"
+#include "clang/Tooling/StandaloneExecution.h"
+#include "clang/Tooling/Tooling.h"
+#include "llvm/ADT/APFloat.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/Process.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/raw_ostream.h"
+#include <string>
+
+using namespace clang::ast_matchers;
+using namespace clang::tooling;
+using namespace clang;
+
+static llvm::cl::extrahelp CommonHelp(CommonOptionsParser::HelpMessage);
+static llvm::cl::OptionCategory ClangDocCategory("clang-doc options");
+
+static llvm::cl::opt<std::string>
+ OutDirectory("output",
+ llvm::cl::desc("Directory for outputting generated files."),
+ llvm::cl::init("docs"), llvm::cl::cat(ClangDocCategory));
+
+static llvm::cl::opt<bool>
+ DumpMapperResult("dump-mapper",
+ llvm::cl::desc("Dump mapper results to bitcode file."),
+ llvm::cl::init(false), llvm::cl::cat(ClangDocCategory));
+
+static llvm::cl::opt<bool> DoxygenOnly(
+ "doxygen",
+ llvm::cl::desc("Use only doxygen-style comments to generate docs."),
+ llvm::cl::init(false), llvm::cl::cat(ClangDocCategory));
+
+int main(int argc, const char **argv) {
+ llvm::sys::PrintStackTraceOnErrorSignal(argv[0]);
+ std::error_code OK;
+
+ auto Exec = clang::tooling::createExecutorFromCommandLineArgs(
+ argc, argv, ClangDocCategory);
+
+ if (!Exec) {
+ llvm::errs() << toString(Exec.takeError()) << "\n";
+ return 1;
+ }
+
+ ArgumentsAdjuster ArgAdjuster;
+ if (!DoxygenOnly)
+ ArgAdjuster = combineAdjusters(
+ getInsertArgumentAdjuster("-fparse-all-comments",
+ tooling::ArgumentInsertPosition::END),
+ ArgAdjuster);
+
+ // Mapping phase
+ llvm::outs() << "Mapping decls...\n";
+ auto Err = Exec->get()->execute(doc::newMapperActionFactory(
+ Exec->get()->getExecutionContext()),
+ ArgAdjuster);
+ if (Err)
+ llvm::errs() << toString(std::move(Err)) << "\n";
+
+ if (DumpMapperResult) {
+ Exec->get()->getToolResults()->forEachResult([&](StringRef Key,
+ StringRef Value) {
+ SmallString<128> IRRootPath;
+ llvm::sys::path::native(OutDirectory, IRRootPath);
+ llvm::sys::path::append(IRRootPath, "bc");
+ std::error_code DirectoryStatus =
+ llvm::sys::fs::create_directories(IRRootPath);
+ if (DirectoryStatus != OK) {
+ llvm::errs() << "Unable to create documentation directories.\n";
+ return;
+ }
+ llvm::sys::path::append(IRRootPath, Key + ".bc");
+ std::error_code OutErrorInfo;
+ llvm::raw_fd_ostream OS(IRRootPath, OutErrorInfo, llvm::sys::fs::F_None);
+ if (OutErrorInfo != OK) {
+ llvm::errs() << "Error opening documentation file.\n";
+ return;
+ }
+ OS << Value;
+ OS.close();
+ });
+ }
+
+ return 0;
+}