1//===- lib/MC/MCNullStreamer.cpp - Dummy Streamer Implementation ----------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "llvm/MC/MCStreamer.h"
11#include "llvm/MC/MCContext.h"
12#include "llvm/MC/MCInst.h"
13#include "llvm/MC/MCSectionMachO.h"
14#include "llvm/MC/MCSymbol.h"
15
16using namespace llvm;
17
18namespace {
19
20  class MCNullStreamer : public MCStreamer {
21  public:
22    MCNullStreamer(MCContext &Context) : MCStreamer(Context) {}
23
24    /// @name MCStreamer Interface
25    /// @{
26
27    bool EmitSymbolAttribute(MCSymbol *Symbol,
28                             MCSymbolAttr Attribute) override {
29      return true;
30    }
31
32    void EmitCOFFSecRel32(MCSymbol const *Symbol) override {}
33    void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
34                          unsigned ByteAlignment) override {}
35    void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = nullptr,
36                      uint64_t Size = 0, unsigned ByteAlignment = 0) override {}
37    void EmitGPRel32Value(const MCExpr *Value) override {}
38  };
39
40}
41
42MCStreamer *llvm::createNullStreamer(MCContext &Context) {
43  return new MCNullStreamer(Context);
44}
45