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//===- tools/clang-check/ClangCheck.cpp - Clang check tool ----------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements a clang-check tool that runs the
// clang::SyntaxOnlyAction over a number of translation units.
//
// This tool uses the Clang Tooling infrastructure, see
// http://clang.llvm.org/docs/HowToSetupToolingForLLVM.html
// for details on setting it up with LLVM source tree.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/CommandLine.h"
#include "clang/AST/ASTConsumer.h"
#include "clang/Driver/OptTable.h"
#include "clang/Driver/Options.h"
#include "clang/Frontend/ASTConsumers.h"
#include "clang/Frontend/FrontendActions.h"
#include "clang/Tooling/CommandLineClangTool.h"
#include "clang/Tooling/Tooling.h"
using namespace clang::driver;
using namespace clang::tooling;
using namespace llvm;
static const char *MoreHelpText =
"\tFor example, to run clang-check on all files in a subtree of the\n"
"\tsource tree, use:\n"
"\n"
"\t find path/in/subtree -name '*.cpp'|xargs clang-check\n"
"\n"
"\tor using a specific build path:\n"
"\n"
"\t find path/in/subtree -name '*.cpp'|xargs clang-check -p build/path\n"
"\n"
"\tNote, that path/in/subtree and current directory should follow the\n"
"\trules described above.\n"
"\n";
namespace {
class ActionFactory {
public:
ActionFactory()
: Options(createDriverOptTable()),
ASTDump(
"ast-dump",
cl::desc(Options->getOptionHelpText(options::OPT_ast_dump))),
ASTList(
"ast-list",
cl::desc(Options->getOptionHelpText(options::OPT_ast_list))),
ASTPrint(
"ast-print",
cl::desc(Options->getOptionHelpText(options::OPT_ast_print))),
ASTDumpFilter(
"ast-dump-filter",
cl::desc(Options->getOptionHelpText(options::OPT_ast_dump_filter))) {}
clang::ASTConsumer *newASTConsumer() {
if (ASTList)
return clang::CreateASTDeclNodeLister();
if (ASTDump)
return clang::CreateASTDumper(ASTDumpFilter);
if (ASTPrint)
return clang::CreateASTPrinter(&llvm::outs(), ASTDumpFilter);
return new clang::ASTConsumer();
}
private:
OwningPtr<OptTable> Options;
cl::opt<bool> ASTDump;
cl::opt<bool> ASTList;
cl::opt<bool> ASTPrint;
cl::opt<std::string> ASTDumpFilter;
};
}
int main(int argc, const char **argv) {
ActionFactory Factory;
CommandLineClangTool Tool;
cl::extrahelp MoreHelp(MoreHelpText);
Tool.initialize(argc, argv);
return Tool.run(newFrontendActionFactory(&Factory));
}
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