#include "llvm/TableGen/Main.h"
#include "TGParser.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/ToolOutputFile.h"
#include "llvm/TableGen/Error.h"
#include "llvm/TableGen/Record.h"
#include <algorithm>
#include <cstdio>
#include <system_error>
using namespace llvm;
static cl::opt<std::string>
OutputFilename("o", cl::desc("Output filename"), cl::value_desc("filename"),
cl::init("-"));
static cl::opt<std::string>
DependFilename("d",
cl::desc("Dependency filename"),
cl::value_desc("filename"),
cl::init(""));
static cl::opt<std::string>
InputFilename(cl::Positional, cl::desc("<input file>"), cl::init("-"));
static cl::list<std::string>
IncludeDirs("I", cl::desc("Directory of include files"),
cl::value_desc("directory"), cl::Prefix);
static int createDependencyFile(const TGParser &Parser, const char *argv0) {
if (OutputFilename == "-") {
errs() << argv0 << ": the option -d must be used together with -o\n";
return 1;
}
std::error_code EC;
tool_output_file DepOut(DependFilename, EC, sys::fs::F_Text);
if (EC) {
errs() << argv0 << ": error opening " << DependFilename << ":"
<< EC.message() << "\n";
return 1;
}
DepOut.os() << OutputFilename << ":";
for (const auto &Dep : Parser.getDependencies()) {
DepOut.os() << ' ' << Dep.first;
}
DepOut.os() << "\n";
DepOut.keep();
return 0;
}
int llvm::TableGenMain(char *argv0, TableGenMainFn *MainFn) {
RecordKeeper Records;
ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
MemoryBuffer::getFileOrSTDIN(InputFilename);
if (std::error_code EC = FileOrErr.getError()) {
errs() << "Could not open input file '" << InputFilename
<< "': " << EC.message() << "\n";
return 1;
}
SrcMgr.AddNewSourceBuffer(std::move(*FileOrErr), SMLoc());
SrcMgr.setIncludeDirs(IncludeDirs);
TGParser Parser(SrcMgr, Records);
if (Parser.ParseFile())
return 1;
std::error_code EC;
tool_output_file Out(OutputFilename, EC, sys::fs::F_Text);
if (EC) {
errs() << argv0 << ": error opening " << OutputFilename << ":"
<< EC.message() << "\n";
return 1;
}
if (!DependFilename.empty()) {
if (int Ret = createDependencyFile(Parser, argv0))
return Ret;
}
if (MainFn(Out.os(), Records))
return 1;
if (ErrorsPrinted > 0) {
errs() << argv0 << ": " << ErrorsPrinted << " errors.\n";
return 1;
}
Out.keep();
return 0;
}