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/ADT/StringRef.h"
11 #include "llvm/MC/MCInst.h"
12 #include "llvm/MC/MCStreamer.h"
13 #include "llvm/MC/MCSymbol.h"
14
15 using namespace llvm;
16
17 namespace {
18
19 class MCNullStreamer : public MCStreamer {
20 public:
MCNullStreamer(MCContext & Context)21 MCNullStreamer(MCContext &Context) : MCStreamer(Context) {}
22
23 /// @name MCStreamer Interface
24 /// @{
25
hasRawTextSupport() const26 bool hasRawTextSupport() const override { return true; }
EmitRawTextImpl(StringRef String)27 void EmitRawTextImpl(StringRef String) override {}
28
EmitSymbolAttribute(MCSymbol * Symbol,MCSymbolAttr Attribute)29 bool EmitSymbolAttribute(MCSymbol *Symbol,
30 MCSymbolAttr Attribute) override {
31 return true;
32 }
33
EmitCommonSymbol(MCSymbol * Symbol,uint64_t Size,unsigned ByteAlignment)34 void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
35 unsigned ByteAlignment) override {}
EmitZerofill(MCSection * Section,MCSymbol * Symbol=nullptr,uint64_t Size=0,unsigned ByteAlignment=0,SMLoc Loc=SMLoc ())36 void EmitZerofill(MCSection *Section, MCSymbol *Symbol = nullptr,
37 uint64_t Size = 0, unsigned ByteAlignment = 0,
38 SMLoc Loc = SMLoc()) override {}
EmitGPRel32Value(const MCExpr * Value)39 void EmitGPRel32Value(const MCExpr *Value) override {}
BeginCOFFSymbolDef(const MCSymbol * Symbol)40 void BeginCOFFSymbolDef(const MCSymbol *Symbol) override {}
EmitCOFFSymbolStorageClass(int StorageClass)41 void EmitCOFFSymbolStorageClass(int StorageClass) override {}
EmitCOFFSymbolType(int Type)42 void EmitCOFFSymbolType(int Type) override {}
EndCOFFSymbolDef()43 void EndCOFFSymbolDef() override {}
44 };
45
46 }
47
createNullStreamer(MCContext & Context)48 MCStreamer *llvm::createNullStreamer(MCContext &Context) {
49 return new MCNullStreamer(Context);
50 }
51