1//===- SkeletonEmitter.cpp - Skeleton TableGen backend          -*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This Tablegen backend emits ...
10//
11//===----------------------------------------------------------------------===//
12
13#include "llvm/ADT/ArrayRef.h"
14#include "llvm/ADT/DenseMap.h"
15#include "llvm/ADT/StringExtras.h"
16#include "llvm/Support/Format.h"
17#include "llvm/Support/MemoryBuffer.h"
18#include "llvm/Support/SourceMgr.h"
19#include "llvm/TableGen/Error.h"
20#include "llvm/TableGen/Record.h"
21#include "llvm/TableGen/TableGenBackend.h"
22#include <algorithm>
23#include <set>
24#include <string>
25#include <vector>
26
27#define DEBUG_TYPE "skeleton-emitter"
28
29using namespace llvm;
30
31namespace {
32
33// Any helper data structures can be defined here. Some backends use
34// structs to collect information from the records.
35
36class SkeletonEmitter {
37private:
38  RecordKeeper &Records;
39
40public:
41  SkeletonEmitter(RecordKeeper &RK) : Records(RK) {}
42
43  void run(raw_ostream &OS);
44}; // emitter class
45
46} // anonymous namespace
47
48void SkeletonEmitter::run(raw_ostream &OS) {
49  emitSourceFileHeader("Skeleton data structures", OS);
50
51  (void)Records; // To suppress unused variable warning; remove on use.
52}
53
54namespace llvm {
55
56// The only thing that should be in the llvm namespace is the
57// emitter entry point function.
58
59void EmitSkeleton(RecordKeeper &RK, raw_ostream &OS) {
60  // Instantiate the emitter class and invoke run().
61  SkeletonEmitter(RK).run(OS);
62}
63
64} // namespace llvm
65