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/MCInst.h"
11 #include "llvm/MC/MCStreamer.h"
12 #include "llvm/MC/MCSymbol.h"
13
14 using namespace llvm;
15
16 namespace {
17
18 class MCNullStreamer : public MCStreamer {
19 public:
MCNullStreamer(MCContext & Context)20 MCNullStreamer(MCContext &Context) : MCStreamer(Context) {}
21
22 /// @name MCStreamer Interface
23 /// @{
24
hasRawTextSupport() const25 bool hasRawTextSupport() const override { return true; }
EmitRawTextImpl(StringRef String)26 void EmitRawTextImpl(StringRef String) override {}
27
EmitSymbolAttribute(MCSymbol * Symbol,MCSymbolAttr Attribute)28 bool EmitSymbolAttribute(MCSymbol *Symbol,
29 MCSymbolAttr Attribute) override {
30 return true;
31 }
32
EmitCommonSymbol(MCSymbol * Symbol,uint64_t Size,unsigned ByteAlignment)33 void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
34 unsigned ByteAlignment) override {}
EmitZerofill(MCSection * Section,MCSymbol * Symbol=nullptr,uint64_t Size=0,unsigned ByteAlignment=0,SMLoc Loc=SMLoc ())35 void EmitZerofill(MCSection *Section, MCSymbol *Symbol = nullptr,
36 uint64_t Size = 0, unsigned ByteAlignment = 0,
37 SMLoc Loc = SMLoc()) override {}
EmitGPRel32Value(const MCExpr * Value)38 void EmitGPRel32Value(const MCExpr *Value) override {}
BeginCOFFSymbolDef(const MCSymbol * Symbol)39 void BeginCOFFSymbolDef(const MCSymbol *Symbol) override {}
EmitCOFFSymbolStorageClass(int StorageClass)40 void EmitCOFFSymbolStorageClass(int StorageClass) override {}
EmitCOFFSymbolType(int Type)41 void EmitCOFFSymbolType(int Type) override {}
EndCOFFSymbolDef()42 void EndCOFFSymbolDef() override {}
43 };
44
45 }
46
createNullStreamer(MCContext & Context)47 MCStreamer *llvm::createNullStreamer(MCContext &Context) {
48 return new MCNullStreamer(Context);
49 }
50