1//===- lib/MC/MCNullStreamer.cpp - Dummy Streamer Implementation ----------===//
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#include "llvm/ADT/StringRef.h"
10#include "llvm/MC/MCDirectives.h"
11#include "llvm/MC/MCStreamer.h"
12namespace llvm {
13class MCContext;
14class MCExpr;
15class MCSection;
16class MCSymbol;
17} // namespace llvm
18
19using namespace llvm;
20
21namespace {
22
23 class MCNullStreamer : public MCStreamer {
24 public:
25 MCNullStreamer(MCContext &Context) : MCStreamer(Context) {}
26
27 /// @name MCStreamer Interface
28 /// @{
29
30 bool hasRawTextSupport() const override { return true; }
31 void emitRawTextImpl(StringRef String) override {}
32
33 bool emitSymbolAttribute(MCSymbol *Symbol,
34 MCSymbolAttr Attribute) override {
35 return true;
36 }
37
38 void emitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
39 Align ByteAlignment) override {}
40 void emitSubsectionsViaSymbols() override {};
41 void beginCOFFSymbolDef(const MCSymbol *Symbol) override {}
42 void emitCOFFSymbolStorageClass(int StorageClass) override {}
43 void emitCOFFSymbolType(int Type) override {}
44 void endCOFFSymbolDef() override {}
45 void
46 emitXCOFFSymbolLinkageWithVisibility(MCSymbol *Symbol, MCSymbolAttr Linkage,
47 MCSymbolAttr Visibility) override {}
48 };
49
50}
51
52MCStreamer *llvm::createNullStreamer(MCContext &Context) {
53 return new MCNullStreamer(Context);
54}
55