lib/Support/YAMLTraits.cpp - fp2-dev/platform/external/llvm - Gitiles

 //===- lib/Support/YAMLTraits.cpp -----------------------------------------===//
 //
 //                             The LLVM Linker
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//

 #define BUILDING_YAMLIO
 #include "llvm/Support/YAMLTraits.h"
 #include "llvm/ADT/Twine.h"
 #include "llvm/Support/Casting.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/Format.h"
 #include "llvm/Support/YAMLParser.h"
 #include "llvm/Support/raw_ostream.h"
 #include <cstring>

 namespace llvm {
 namespace yaml {


 //===----------------------------------------------------------------------===//
 //  IO
 //===----------------------------------------------------------------------===//

 IO::IO(void *Context) : Ctxt(Context) {
 }

 IO::~IO() {
 }

 void *IO::getContext() {
   return Ctxt;
 }

 void IO::setContext(void *Context) {
   Ctxt = Context;
 }


 //===----------------------------------------------------------------------===//
 //  Input
 //===----------------------------------------------------------------------===//

 Input::Input(StringRef InputContent, void *Ctxt)
     : IO(Ctxt), CurrentNode(NULL) {
   Strm = new Stream(InputContent, SrcMgr);
   DocIterator = Strm->begin();
 }


 llvm::error_code Input::error() {
   return EC;
 }

 void Input::setDiagHandler(llvm::SourceMgr::DiagHandlerTy Handler, void *Ctxt) {
   SrcMgr.setDiagHandler(Handler, Ctxt);
 }

 bool Input::outputting() {
   return false;
 }

 bool Input::setCurrentDocument() {
   if ( DocIterator != Strm->end() ) {
     Node *N = DocIterator->getRoot();
     if (llvm::isa<NullNode>(N)) {
       // Empty files are allowed and ignored
       ++DocIterator;
       return setCurrentDocument();
     }
     CurrentNode = this->createHNodes(N);
     return true;
   }
   return false;
 }

 void Input::nextDocument() {
   ++DocIterator;
 }

 void Input::beginMapping() {
   if ( EC )
     return;
   MapHNode *MN = llvm::dyn_cast<MapHNode>(CurrentNode);
   if ( MN ) {
     MN->ValidKeys.clear();
   }
 }

 bool Input::preflightKey(const char *Key, bool Required, bool,
                                           bool &UseDefault, void *&SaveInfo) {
   UseDefault = false;
   if ( EC )
     return false;
   MapHNode *MN = llvm::dyn_cast<MapHNode>(CurrentNode);
   if ( !MN ) {
     setError(CurrentNode, "not a mapping");
     return false;
   }
   MN->ValidKeys.push_back(Key);
   HNode *Value = MN->Mapping[Key];
   if ( !Value ) {
     if ( Required )
       setError(CurrentNode, Twine("missing required key '") + Key + "'");
     else
       UseDefault = true;
    return false;
   }
   SaveInfo = CurrentNode;
   CurrentNode = Value;
   return true;
 }

 void Input::postflightKey(void *saveInfo) {
   CurrentNode = reinterpret_cast<HNode*>(saveInfo);
 }

 void Input::endMapping() {
   if ( EC )
     return;
   MapHNode *MN = llvm::dyn_cast<MapHNode>(CurrentNode);
   if ( !MN )
     return;
   for (MapHNode::NameToNode::iterator i=MN->Mapping.begin(),
                                         End=MN->Mapping.end(); i != End; ++i) {
     if ( ! MN->isValidKey(i->first) ) {
        setError(i->second, Twine("unknown key '") + i->first + "'" );
       break;
     }
   }
 }


 unsigned Input::beginSequence() {
   if ( SequenceHNode *SQ = llvm::dyn_cast<SequenceHNode>(CurrentNode) ) {
     return SQ->Entries.size();
   }
   return 0;
 }
 void Input::endSequence() {
 }
 bool Input::preflightElement(unsigned Index, void *&SaveInfo) {
   if ( EC )
     return false;
   if ( SequenceHNode *SQ = llvm::dyn_cast<SequenceHNode>(CurrentNode) ) {
     SaveInfo = CurrentNode;
     CurrentNode = SQ->Entries[Index];
     return true;
   }
   return false;
 }
 void Input::postflightElement(void *SaveInfo) {
   CurrentNode = reinterpret_cast<HNode*>(SaveInfo);
 }

 unsigned Input::beginFlowSequence() {
    if ( SequenceHNode *SQ = llvm::dyn_cast<SequenceHNode>(CurrentNode) ) {
     return SQ->Entries.size();
   }
   return 0;
 }
 bool Input::preflightFlowElement(unsigned index, void *&SaveInfo) {
   if ( EC )
     return false;
   if ( SequenceHNode *SQ = llvm::dyn_cast<SequenceHNode>(CurrentNode) ) {
     SaveInfo = CurrentNode;
     CurrentNode = SQ->Entries[index];
     return true;
   }
   return false;
 }
 void Input::postflightFlowElement(void *SaveInfo) {
   CurrentNode = reinterpret_cast<HNode*>(SaveInfo);
 }
 void Input::endFlowSequence() {
 }


 void Input::beginEnumScalar() {
   ScalarMatchFound = false;
 }

 bool Input::matchEnumScalar(const char *Str, bool) {
   if ( ScalarMatchFound )
     return false;
   if ( ScalarHNode *SN = llvm::dyn_cast<ScalarHNode>(CurrentNode) ) {
     if ( SN->value().equals(Str) ) {
       ScalarMatchFound = true;
       return true;
     }
   }
   return false;
 }

 void Input::endEnumScalar() {
   if ( !ScalarMatchFound ) {
     setError(CurrentNode, "unknown enumerated scalar");
   }
 }


 bool Input::beginBitSetScalar(bool &DoClear) {
   BitValuesUsed.clear();
   if ( SequenceHNode *SQ = llvm::dyn_cast<SequenceHNode>(CurrentNode) ) {
     BitValuesUsed.insert(BitValuesUsed.begin(), SQ->Entries.size(), false);
   }
   else {
     setError(CurrentNode, "expected sequence of bit values");
   }
   DoClear = true;
   return true;
 }

 bool Input::bitSetMatch(const char *Str, bool) {
   if ( EC )
     return false;
   if ( SequenceHNode *SQ = llvm::dyn_cast<SequenceHNode>(CurrentNode) ) {
     unsigned Index = 0;
     for (std::vector<HNode*>::iterator i=SQ->Entries.begin(),
                                        End=SQ->Entries.end(); i != End; ++i) {
       if ( ScalarHNode *SN = llvm::dyn_cast<ScalarHNode>(*i) ) {
         if ( SN->value().equals(Str) ) {
           BitValuesUsed[Index] = true;
           return true;
         }
       }
       else {
         setError(CurrentNode, "unexpected scalar in sequence of bit values");
       }
       ++Index;
     }
   }
   else {
     setError(CurrentNode, "expected sequence of bit values");
   }
   return false;
 }

 void Input::endBitSetScalar() {
   if ( EC )
     return;
   if ( SequenceHNode *SQ = llvm::dyn_cast<SequenceHNode>(CurrentNode) ) {
     assert(BitValuesUsed.size() == SQ->Entries.size());
     for ( unsigned i=0; i < SQ->Entries.size(); ++i ) {
       if ( !BitValuesUsed[i] ) {
         setError(SQ->Entries[i], "unknown bit value");
         return;
       }
     }
   }
 }


 void Input::scalarString(StringRef &S) {
   if ( ScalarHNode *SN = llvm::dyn_cast<ScalarHNode>(CurrentNode) ) {
     S = SN->value();
   }
   else {
     setError(CurrentNode, "unexpected scalar");
   }
 }

 void Input::setError(HNode *hnode, const Twine &message) {
   this->setError(hnode->_node, message);
 }

 void Input::setError(Node *node, const Twine &message) {
   Strm->printError(node, message);
   EC = make_error_code(errc::invalid_argument);
 }

 Input::HNode *Input::createHNodes(Node *N) {
   llvm::SmallString<128> StringStorage;
   if ( ScalarNode *SN = llvm::dyn_cast<ScalarNode>(N) ) {
     StringRef KeyStr = SN->getValue(StringStorage);
     if ( !StringStorage.empty() ) {
       // Copy string to permanent storage
       unsigned Len = StringStorage.size();
       char* Buf = Allocator.Allocate<char>(Len);
       memcpy(Buf, &StringStorage[0], Len);
       KeyStr = StringRef(Buf, Len);
     }
     return new (Allocator) ScalarHNode(N, KeyStr);
   }
   else if ( SequenceNode *SQ = llvm::dyn_cast<SequenceNode>(N) ) {
     SequenceHNode *SQHNode = new (Allocator) SequenceHNode(N);
     for (SequenceNode::iterator i=SQ->begin(),End=SQ->end(); i != End; ++i ) {
       HNode *Entry = this->createHNodes(i);
       if ( EC )
         break;
       SQHNode->Entries.push_back(Entry);
     }
     return SQHNode;
   }
   else if ( MappingNode *Map = llvm::dyn_cast<MappingNode>(N) ) {
     MapHNode *mapHNode = new (Allocator) MapHNode(N);
     for (MappingNode::iterator i=Map->begin(), End=Map->end(); i != End; ++i ) {
       ScalarNode *KeyScalar = llvm::dyn_cast<ScalarNode>(i->getKey());
       StringStorage.clear();
       llvm::StringRef KeyStr = KeyScalar->getValue(StringStorage);
       if ( !StringStorage.empty() ) {
         // Copy string to permanent storage
         unsigned Len = StringStorage.size();
         char* Buf = Allocator.Allocate<char>(Len);
         memcpy(Buf, &StringStorage[0], Len);
         KeyStr = StringRef(Buf, Len);
       }
      HNode *ValueHNode = this->createHNodes(i->getValue());
       if ( EC )
         break;
       mapHNode->Mapping[KeyStr] = ValueHNode;
     }
     return mapHNode;
   }
   else if ( llvm::isa<NullNode>(N) ) {
     return new (Allocator) EmptyHNode(N);
   }
   else {
     setError(N, "unknown node kind");
     return NULL;
   }
 }


 bool Input::MapHNode::isValidKey(StringRef Key) {
   for (SmallVector<const char*, 6>::iterator i=ValidKeys.begin(),
                                   End=ValidKeys.end(); i != End; ++i) {
     if ( Key.equals(*i) )
       return true;
   }
   return false;
 }

 void Input::setError(const Twine &Message) {
   this->setError(CurrentNode, Message);
 }


 //===----------------------------------------------------------------------===//
 //  Output
 //===----------------------------------------------------------------------===//

 Output::Output(llvm::raw_ostream &yout, void *context)
     : IO(context), Out(yout), Column(0), ColumnAtFlowStart(0),
        NeedBitValueComma(false), NeedFlowSequenceComma(false),
        EnumerationMatchFound(false), NeedsNewLine(false) {
 }

 Output::~Output() {
 }

 bool Output::outputting() {
   return true;
 }

 void Output::beginMapping() {
   StateStack.push_back(inMapFirstKey);
   NeedsNewLine = true;
 }

 void Output::endMapping() {
   StateStack.pop_back();
 }


 bool Output::preflightKey(const char *Key, bool Required, bool SameAsDefault,
                                                 bool &UseDefault, void *&) {
   UseDefault = false;
   if ( Required || !SameAsDefault ) {
     this->newLineCheck();
     this->paddedKey(Key);
     return true;
   }
   return false;
 }

 void Output::postflightKey(void*) {
   if ( StateStack.back() == inMapFirstKey ) {
     StateStack.pop_back();
     StateStack.push_back(inMapOtherKey);
   }
 }

 void Output::beginDocuments() {
   this->outputUpToEndOfLine("---");
 }

 bool Output::preflightDocument(unsigned index) {
   if ( index > 0 )
     this->outputUpToEndOfLine("\n---");
   return true;
 }

 void Output::postflightDocument() {
 }

 void Output::endDocuments() {
   output("\n...\n");
 }

 unsigned Output::beginSequence() {
   StateStack.push_back(inSeq);
   NeedsNewLine = true;
   return 0;
 }
 void Output::endSequence() {
   StateStack.pop_back();
 }
 bool Output::preflightElement(unsigned , void *&) {
   return true;
 }
 void Output::postflightElement(void*) {
 }

 unsigned Output::beginFlowSequence() {
   this->newLineCheck();
   StateStack.push_back(inFlowSeq);
   ColumnAtFlowStart = Column;
   output("[ ");
   NeedFlowSequenceComma = false;
   return 0;
 }
 void Output::endFlowSequence() {
   StateStack.pop_back();
   this->outputUpToEndOfLine(" ]");
 }
 bool Output::preflightFlowElement(unsigned , void *&) {
   if ( NeedFlowSequenceComma )
     output(", ");
   if ( Column > 70 ) {
     output("\n");
     for(int  i=0; i < ColumnAtFlowStart; ++i)
       output(" ");
     Column = ColumnAtFlowStart;
     output("  ");
   }
   return true;
 }
 void Output::postflightFlowElement(void*) {
   NeedFlowSequenceComma = true;
 }


 void Output::beginEnumScalar() {
   EnumerationMatchFound = false;
 }

 bool Output::matchEnumScalar(const char *Str, bool Match) {
   if ( Match && !EnumerationMatchFound ) {
     this->newLineCheck();
     this->outputUpToEndOfLine(Str);
     EnumerationMatchFound = true;
   }
   return false;
 }

 void Output::endEnumScalar() {
   if ( !EnumerationMatchFound )
     llvm_unreachable("bad runtime enum value");
 }


 bool Output::beginBitSetScalar(bool &DoClear) {
   this->newLineCheck();
   output("[ ");
   NeedBitValueComma = false;
   DoClear = false;
   return true;
 }

 bool Output::bitSetMatch(const char *Str, bool Matches) {
  if ( Matches ) {
     if ( NeedBitValueComma )
       output(", ");
     this->output(Str);
     NeedBitValueComma = true;
   }
   return false;
 }

 void Output::endBitSetScalar() {
   this->outputUpToEndOfLine(" ]");
 }

 void Output::scalarString(StringRef &S) {
   this->newLineCheck();
   if (S.find('\n') == StringRef::npos) {
     // No embedded new-line chars, just print string.
     this->outputUpToEndOfLine(S);
     return;
   }
   unsigned i = 0;
   unsigned j = 0;
   unsigned End = S.size();
   output("'"); // Starting single quote.
   const char *Base = S.data();
   while (j < End) {
     // Escape a single quote by doubling it.
     if (S[j] == '\'') {
       output(StringRef(&Base[i], j - i + 1));
       output("'");
       i = j + 1;
     }
     ++j;
   }
   output(StringRef(&Base[i], j - i));
   this->outputUpToEndOfLine("'"); // Ending single quote.
 }

 void Output::setError(const Twine &message) {
 }


 void Output::output(StringRef s) {
   Column += s.size();
   Out << s;
 }

 void Output::outputUpToEndOfLine(StringRef s) {
   this->output(s);
   if ( StateStack.back() != inFlowSeq )
     NeedsNewLine = true;
 }

 void Output::outputNewLine() {
   Out << "\n";
   Column = 0;
 }

 // if seq at top, indent as if map, then add "- "
 // if seq in middle, use "- " if firstKey, else use "  "
 //

 void Output::newLineCheck() {
   if ( ! NeedsNewLine )
     return;
   NeedsNewLine = false;

   this->outputNewLine();

   assert(StateStack.size() > 0);
   unsigned Indent = StateStack.size() - 1;
   bool OutputDash = false;

   if ( StateStack.back() == inSeq ) {
     OutputDash = true;
   }
   else if ( (StateStack.size() > 1)
             && (StateStack.back() == inMapFirstKey)
             && (StateStack[StateStack.size()-2] == inSeq) ) {
     --Indent;
     OutputDash = true;
   }

   for (unsigned i=0; i < Indent; ++i) {
     output("  ");
   }
   if ( OutputDash ) {
     output("- ");
   }

 }

 void Output::paddedKey(StringRef key) {
   output(key);
   output(":");
   const char *spaces = "                ";
   if ( key.size() < strlen(spaces) )
     output(&spaces[key.size()]);
   else
     output(" ");
 }

 //===----------------------------------------------------------------------===//
 //  traits for built-in types
 //===----------------------------------------------------------------------===//

 template<>
 struct ScalarTraits<bool> {
   static void output(const bool &Val, void*, llvm::raw_ostream &Out) {
     Out << ( Val ? "true" : "false");
   }
   static llvm::StringRef input(llvm::StringRef Scalar, void*, bool &Val) {
     if ( Scalar.equals("true") ) {
       Val = true;
       return StringRef();
     }
     else if ( Scalar.equals("false") ) {
       Val = false;
       return StringRef();
     }
     return "invalid boolean";
   }
 };


 template<>
 struct ScalarTraits<StringRef> {
   static void output(const StringRef &Val, void*, llvm::raw_ostream &Out) {
     Out << Val;
   }
   static llvm::StringRef input(llvm::StringRef Scalar, void*, StringRef &Val){
     Val = Scalar;
     return StringRef();
   }
 };


 template<>
 struct ScalarTraits<uint8_t> {
   static void output(const uint8_t &Val, void*, llvm::raw_ostream &Out) {
     // use temp uin32_t because ostream thinks uint8_t is a character
     uint32_t Num = Val;
     Out << Num;
   }
   static llvm::StringRef input(llvm::StringRef Scalar, void*, uint8_t &Val) {
     unsigned long long n;
     if ( getAsUnsignedInteger(Scalar, 0, n) )
       return "invalid number";
     if ( n > 0xFF )
       return "out of range number";
     Val = n;
     return StringRef();
   }
 };


 template<>
 struct ScalarTraits<uint16_t> {
   static void output(const uint16_t &Val, void*, llvm::raw_ostream &Out) {
     Out << Val;
   }
   static llvm::StringRef input(llvm::StringRef Scalar, void*, uint16_t &Val) {
     unsigned long long n;
     if ( getAsUnsignedInteger(Scalar, 0, n) )
       return "invalid number";
     if ( n > 0xFFFF )
       return "out of range number";
     Val = n;
     return StringRef();
   }
 };

 template<>
 struct ScalarTraits<uint32_t> {
   static void output(const uint32_t &Val, void*, llvm::raw_ostream &Out) {
     Out << Val;
   }
   static llvm::StringRef input(llvm::StringRef Scalar, void*, uint32_t &Val) {
     unsigned long long n;
     if ( getAsUnsignedInteger(Scalar, 0, n) )
       return "invalid number";
     if ( n > 0xFFFFFFFFUL )
       return "out of range number";
     Val = n;
     return StringRef();
   }
 };


 template<>
 struct ScalarTraits<uint64_t> {
   static void output(const uint64_t &Val, void*, llvm::raw_ostream &Out) {
     Out << Val;
   }
   static llvm::StringRef input(llvm::StringRef Scalar, void*, uint64_t &Val) {
     unsigned long long N;
     if ( getAsUnsignedInteger(Scalar, 0, N) )
       return "invalid number";
     Val = N;
     return StringRef();
   }
 };


 template<>
 struct ScalarTraits<int8_t> {
   static void output(const int8_t &Val, void*, llvm::raw_ostream &Out) {
     // use temp in32_t because ostream thinks int8_t is a character
     int32_t Num = Val;
     Out << Num;
   }
   static llvm::StringRef input(llvm::StringRef Scalar, void*, int8_t &Val) {
     long long N;
     if ( getAsSignedInteger(Scalar, 0, N) )
       return "invalid number";
     if ( (N > 127) || (N < -128) )
       return "out of range number";
     Val = N;
     return StringRef();
   }
 };


 template<>
 struct ScalarTraits<int16_t> {
   static void output(const int16_t &Val, void*, llvm::raw_ostream &Out) {
     Out << Val;
   }
   static llvm::StringRef input(llvm::StringRef Scalar, void*, int16_t &Val) {
     long long N;
     if ( getAsSignedInteger(Scalar, 0, N) )
       return "invalid number";
     if ( (N > INT16_MAX) || (N < INT16_MIN) )
       return "out of range number";
     Val = N;
     return StringRef();
   }
 };


 template<>
 struct ScalarTraits<int32_t> {
   static void output(const int32_t &Val, void*, llvm::raw_ostream &Out) {
     Out << Val;
   }
   static llvm::StringRef input(llvm::StringRef Scalar, void*, int32_t &Val) {
     long long N;
     if ( getAsSignedInteger(Scalar, 0, N) )
       return "invalid number";
     if ( (N > INT32_MAX) || (N < INT32_MIN) )
       return "out of range number";
     Val = N;
     return StringRef();
   }
 };

 template<>
 struct ScalarTraits<int64_t> {
   static void output(const int64_t &Val, void*, llvm::raw_ostream &Out) {
     Out << Val;
   }
   static llvm::StringRef input(llvm::StringRef Scalar, void*, int64_t &Val) {
     long long N;
     if ( getAsSignedInteger(Scalar, 0, N) )
       return "invalid number";
     Val = N;
     return StringRef();
   }
 };

 template<>
 struct ScalarTraits<double> {
   static void output(const double &Val, void*, llvm::raw_ostream &Out) {
   Out << format("%g", Val);
   }
   static llvm::StringRef input(llvm::StringRef Scalar, void*, double &Val) {
     SmallString<32> buff(Scalar.begin(), Scalar.end());
     char *end;
     Val = strtod(buff.c_str(), &end);
     if ( *end != '\0' )
       return "invalid floating point number";
     return StringRef();
   }
 };

 template<>
 struct ScalarTraits<float> {
   static void output(const float &Val, void*, llvm::raw_ostream &Out) {
   Out << format("%g", Val);
   }
   static llvm::StringRef input(llvm::StringRef Scalar, void*, float &Val) {
     SmallString<32> buff(Scalar.begin(), Scalar.end());
     char *end;
     Val = strtod(buff.c_str(), &end);
     if ( *end != '\0' )
       return "invalid floating point number";
     return StringRef();
   }
 };


 template<>
 struct ScalarTraits<Hex8> {
   static void output(const Hex8 &Val, void*, llvm::raw_ostream &Out) {
     uint8_t Num = Val;
     Out << format("0x%02X", Num);
   }
   static llvm::StringRef input(llvm::StringRef Scalar, void*, Hex8 &Val) {
     unsigned long long n;
     if ( getAsUnsignedInteger(Scalar, 0, n) )
       return "invalid hex8 number";
     if ( n > 0xFF )
       return "out of range hex8 number";
     Val = n;
     return StringRef();
   }
 };


 template<>
 struct ScalarTraits<Hex16> {
   static void output(const Hex16 &Val, void*, llvm::raw_ostream &Out) {
     uint16_t Num = Val;
     Out << format("0x%04X", Num);
   }
   static llvm::StringRef input(llvm::StringRef Scalar, void*, Hex16 &Val) {
     unsigned long long n;
     if ( getAsUnsignedInteger(Scalar, 0, n) )
       return "invalid hex16 number";
     if ( n > 0xFFFF )
       return "out of range hex16 number";
     Val = n;
     return StringRef();
   }
 };

 template<>
 struct ScalarTraits<Hex32> {
   static void output(const Hex32 &Val, void*, llvm::raw_ostream &Out) {
     uint32_t Num = Val;
     Out << format("0x%08X", Num);
   }
   static llvm::StringRef input(llvm::StringRef Scalar, void*, Hex32 &Val) {
     unsigned long long n;
     if ( getAsUnsignedInteger(Scalar, 0, n) )
       return "invalid hex32 number";
     if ( n > 0xFFFFFFFFUL )
       return "out of range hex32 number";
     Val = n;
     return StringRef();
   }
 };


 template<>
 struct ScalarTraits<Hex64> {
   static void output(const Hex64 &Val, void*, llvm::raw_ostream &Out) {
     uint64_t Num = Val;
     Out << format("0x%016llX", Num);
   }
   static llvm::StringRef input(llvm::StringRef Scalar, void*, Hex64 &Val) {
     unsigned long long Num;
     if ( getAsUnsignedInteger(Scalar, 0, Num) )
       return "invalid hex64 number";
     Val = Num;
     return StringRef();
   }
 };


 // We want all the ScalarTrait specialized on built-in types
 // to be instantiated here.
 template <typename T>
 struct ForceUse {
   ForceUse() : oproc(ScalarTraits<T>::output), iproc(ScalarTraits<T>::input) {}
   void (*oproc)(const T &, void*, llvm::raw_ostream &);
   llvm::StringRef (*iproc)(llvm::StringRef, void*, T &);
 };

 static ForceUse<bool>            Dummy1;
 static ForceUse<llvm::StringRef> Dummy2;
 static ForceUse<uint8_t>         Dummy3;
 static ForceUse<uint16_t>        Dummy4;
 static ForceUse<uint32_t>        Dummy5;
 static ForceUse<uint64_t>        Dummy6;
 static ForceUse<int8_t>          Dummy7;
 static ForceUse<int16_t>         Dummy8;
 static ForceUse<int32_t>         Dummy9;
 static ForceUse<int64_t>         Dummy10;
 static ForceUse<float>           Dummy11;
 static ForceUse<double>          Dummy12;
 static ForceUse<Hex8>            Dummy13;
 static ForceUse<Hex16>           Dummy14;
 static ForceUse<Hex32>           Dummy15;
 static ForceUse<Hex64>           Dummy16;


 } // namespace yaml
 } // namespace llvm
	//===- lib/Support/YAMLTraits.cpp -----------------------------------------===//
	//
	// The LLVM Linker
	//
	// This file is distributed under the University of Illinois Open Source
	// License. See LICENSE.TXT for details.
	//
	//===----------------------------------------------------------------------===//

	#define BUILDING_YAMLIO
	#include "llvm/Support/YAMLTraits.h"
	#include "llvm/ADT/Twine.h"
	#include "llvm/Support/Casting.h"
	#include "llvm/Support/ErrorHandling.h"
	#include "llvm/Support/Format.h"
	#include "llvm/Support/YAMLParser.h"
	#include "llvm/Support/raw_ostream.h"
	#include <cstring>

	namespace llvm {
	namespace yaml {



	//===----------------------------------------------------------------------===//
	// IO
	//===----------------------------------------------------------------------===//

	IO::IO(void *Context) : Ctxt(Context) {
	}

	IO::~IO() {
	}

	void *IO::getContext() {
	return Ctxt;
	}

	void IO::setContext(void *Context) {
	Ctxt = Context;
	}


	//===----------------------------------------------------------------------===//
	// Input
	//===----------------------------------------------------------------------===//

	Input::Input(StringRef InputContent, void *Ctxt)
	: IO(Ctxt), CurrentNode(NULL) {
	Strm = new Stream(InputContent, SrcMgr);
	DocIterator = Strm->begin();
	}


	llvm::error_code Input::error() {
	return EC;
	}

	void Input::setDiagHandler(llvm::SourceMgr::DiagHandlerTy Handler, void *Ctxt) {
	SrcMgr.setDiagHandler(Handler, Ctxt);
	}

	bool Input::outputting() {
	return false;
	}

	bool Input::setCurrentDocument() {
	if ( DocIterator != Strm->end() ) {
	Node *N = DocIterator->getRoot();
	if (llvm::isa<NullNode>(N)) {
	// Empty files are allowed and ignored
	++DocIterator;
	return setCurrentDocument();
	}
	CurrentNode = this->createHNodes(N);
	return true;
	}
	return false;
	}

	void Input::nextDocument() {
	++DocIterator;
	}

	void Input::beginMapping() {
	if ( EC )
	return;
	MapHNode *MN = llvm::dyn_cast<MapHNode>(CurrentNode);
	if ( MN ) {
	MN->ValidKeys.clear();
	}
	}

	bool Input::preflightKey(const char *Key, bool Required, bool,
	bool &UseDefault, void *&SaveInfo) {
	UseDefault = false;
	if ( EC )
	return false;
	MapHNode *MN = llvm::dyn_cast<MapHNode>(CurrentNode);
	if ( !MN ) {
	setError(CurrentNode, "not a mapping");
	return false;
	}
	MN->ValidKeys.push_back(Key);
	HNode *Value = MN->Mapping[Key];
	if ( !Value ) {
	if ( Required )
	setError(CurrentNode, Twine("missing required key '") + Key + "'");
	else
	UseDefault = true;
	return false;
	}
	SaveInfo = CurrentNode;
	CurrentNode = Value;
	return true;
	}

	void Input::postflightKey(void *saveInfo) {
	CurrentNode = reinterpret_cast<HNode*>(saveInfo);
	}

	void Input::endMapping() {
	if ( EC )
	return;
	MapHNode *MN = llvm::dyn_cast<MapHNode>(CurrentNode);
	if ( !MN )
	return;
	for (MapHNode::NameToNode::iterator i=MN->Mapping.begin(),
	End=MN->Mapping.end(); i != End; ++i) {
	if ( ! MN->isValidKey(i->first) ) {
	setError(i->second, Twine("unknown key '") + i->first + "'" );
	break;
	}
	}
	}


	unsigned Input::beginSequence() {
	if ( SequenceHNode *SQ = llvm::dyn_cast<SequenceHNode>(CurrentNode) ) {
	return SQ->Entries.size();
	}
	return 0;
	}
	void Input::endSequence() {
	}
	bool Input::preflightElement(unsigned Index, void *&SaveInfo) {
	if ( EC )
	return false;
	if ( SequenceHNode *SQ = llvm::dyn_cast<SequenceHNode>(CurrentNode) ) {
	SaveInfo = CurrentNode;
	CurrentNode = SQ->Entries[Index];
	return true;
	}
	return false;
	}
	void Input::postflightElement(void *SaveInfo) {
	CurrentNode = reinterpret_cast<HNode*>(SaveInfo);
	}

	unsigned Input::beginFlowSequence() {
	if ( SequenceHNode *SQ = llvm::dyn_cast<SequenceHNode>(CurrentNode) ) {
	return SQ->Entries.size();
	}
	return 0;
	}
	bool Input::preflightFlowElement(unsigned index, void *&SaveInfo) {
	if ( EC )
	return false;
	if ( SequenceHNode *SQ = llvm::dyn_cast<SequenceHNode>(CurrentNode) ) {
	SaveInfo = CurrentNode;
	CurrentNode = SQ->Entries[index];
	return true;
	}
	return false;
	}
	void Input::postflightFlowElement(void *SaveInfo) {
	CurrentNode = reinterpret_cast<HNode*>(SaveInfo);
	}
	void Input::endFlowSequence() {
	}


	void Input::beginEnumScalar() {
	ScalarMatchFound = false;
	}

	bool Input::matchEnumScalar(const char *Str, bool) {
	if ( ScalarMatchFound )
	return false;
	if ( ScalarHNode *SN = llvm::dyn_cast<ScalarHNode>(CurrentNode) ) {
	if ( SN->value().equals(Str) ) {
	ScalarMatchFound = true;
	return true;
	}
	}
	return false;
	}

	void Input::endEnumScalar() {
	if ( !ScalarMatchFound ) {
	setError(CurrentNode, "unknown enumerated scalar");
	}
	}



	bool Input::beginBitSetScalar(bool &DoClear) {
	BitValuesUsed.clear();
	if ( SequenceHNode *SQ = llvm::dyn_cast<SequenceHNode>(CurrentNode) ) {
	BitValuesUsed.insert(BitValuesUsed.begin(), SQ->Entries.size(), false);
	}
	else {
	setError(CurrentNode, "expected sequence of bit values");
	}
	DoClear = true;
	return true;
	}

	bool Input::bitSetMatch(const char *Str, bool) {
	if ( EC )
	return false;
	if ( SequenceHNode *SQ = llvm::dyn_cast<SequenceHNode>(CurrentNode) ) {
	unsigned Index = 0;
	for (std::vector<HNode*>::iterator i=SQ->Entries.begin(),
	End=SQ->Entries.end(); i != End; ++i) {
	if ( ScalarHNode SN = llvm::dyn_cast<ScalarHNode>(i) ) {
	if ( SN->value().equals(Str) ) {
	BitValuesUsed[Index] = true;
	return true;
	}
	}
	else {
	setError(CurrentNode, "unexpected scalar in sequence of bit values");
	}
	++Index;
	}
	}
	else {
	setError(CurrentNode, "expected sequence of bit values");
	}
	return false;
	}

	void Input::endBitSetScalar() {
	if ( EC )
	return;
	if ( SequenceHNode *SQ = llvm::dyn_cast<SequenceHNode>(CurrentNode) ) {
	assert(BitValuesUsed.size() == SQ->Entries.size());
	for ( unsigned i=0; i < SQ->Entries.size(); ++i ) {
	if ( !BitValuesUsed[i] ) {
	setError(SQ->Entries[i], "unknown bit value");
	return;
	}
	}
	}
	}


	void Input::scalarString(StringRef &S) {
	if ( ScalarHNode *SN = llvm::dyn_cast<ScalarHNode>(CurrentNode) ) {
	S = SN->value();
	}
	else {
	setError(CurrentNode, "unexpected scalar");
	}
	}

	void Input::setError(HNode *hnode, const Twine &message) {
	this->setError(hnode->_node, message);
	}

	void Input::setError(Node *node, const Twine &message) {
	Strm->printError(node, message);
	EC = make_error_code(errc::invalid_argument);
	}

	Input::HNode Input::createHNodes(Node N) {
	llvm::SmallString<128> StringStorage;
	if ( ScalarNode *SN = llvm::dyn_cast<ScalarNode>(N) ) {
	StringRef KeyStr = SN->getValue(StringStorage);
	if ( !StringStorage.empty() ) {
	// Copy string to permanent storage
	unsigned Len = StringStorage.size();
	char* Buf = Allocator.Allocate<char>(Len);
	memcpy(Buf, &StringStorage[0], Len);
	KeyStr = StringRef(Buf, Len);
	}
	return new (Allocator) ScalarHNode(N, KeyStr);
	}
	else if ( SequenceNode *SQ = llvm::dyn_cast<SequenceNode>(N) ) {
	SequenceHNode *SQHNode = new (Allocator) SequenceHNode(N);
	for (SequenceNode::iterator i=SQ->begin(),End=SQ->end(); i != End; ++i ) {
	HNode *Entry = this->createHNodes(i);
	if ( EC )
	break;
	SQHNode->Entries.push_back(Entry);
	}
	return SQHNode;
	}
	else if ( MappingNode *Map = llvm::dyn_cast<MappingNode>(N) ) {
	MapHNode *mapHNode = new (Allocator) MapHNode(N);
	for (MappingNode::iterator i=Map->begin(), End=Map->end(); i != End; ++i ) {
	ScalarNode *KeyScalar = llvm::dyn_cast<ScalarNode>(i->getKey());
	StringStorage.clear();
	llvm::StringRef KeyStr = KeyScalar->getValue(StringStorage);
	if ( !StringStorage.empty() ) {
	// Copy string to permanent storage
	unsigned Len = StringStorage.size();
	char* Buf = Allocator.Allocate<char>(Len);
	memcpy(Buf, &StringStorage[0], Len);
	KeyStr = StringRef(Buf, Len);
	}
	HNode *ValueHNode = this->createHNodes(i->getValue());
	if ( EC )
	break;
	mapHNode->Mapping[KeyStr] = ValueHNode;
	}
	return mapHNode;
	}
	else if ( llvm::isa<NullNode>(N) ) {
	return new (Allocator) EmptyHNode(N);
	}
	else {
	setError(N, "unknown node kind");
	return NULL;
	}
	}


	bool Input::MapHNode::isValidKey(StringRef Key) {
	for (SmallVector<const char*, 6>::iterator i=ValidKeys.begin(),
	End=ValidKeys.end(); i != End; ++i) {
	if ( Key.equals(*i) )
	return true;
	}
	return false;
	}

	void Input::setError(const Twine &Message) {
	this->setError(CurrentNode, Message);
	}


	//===----------------------------------------------------------------------===//
	// Output
	//===----------------------------------------------------------------------===//

	Output::Output(llvm::raw_ostream &yout, void *context)
	: IO(context), Out(yout), Column(0), ColumnAtFlowStart(0),
	NeedBitValueComma(false), NeedFlowSequenceComma(false),
	EnumerationMatchFound(false), NeedsNewLine(false) {
	}

	Output::~Output() {
	}

	bool Output::outputting() {
	return true;
	}

	void Output::beginMapping() {
	StateStack.push_back(inMapFirstKey);
	NeedsNewLine = true;
	}

	void Output::endMapping() {
	StateStack.pop_back();
	}


	bool Output::preflightKey(const char *Key, bool Required, bool SameAsDefault,
	bool &UseDefault, void *&) {
	UseDefault = false;
	if ( Required \|\| !SameAsDefault ) {
	this->newLineCheck();
	this->paddedKey(Key);
	return true;
	}
	return false;
	}

	void Output::postflightKey(void*) {
	if ( StateStack.back() == inMapFirstKey ) {
	StateStack.pop_back();
	StateStack.push_back(inMapOtherKey);
	}
	}

	void Output::beginDocuments() {
	this->outputUpToEndOfLine("---");
	}

	bool Output::preflightDocument(unsigned index) {
	if ( index > 0 )
	this->outputUpToEndOfLine("\n---");
	return true;
	}

	void Output::postflightDocument() {
	}

	void Output::endDocuments() {
	output("\n...\n");
	}

	unsigned Output::beginSequence() {
	StateStack.push_back(inSeq);
	NeedsNewLine = true;
	return 0;
	}
	void Output::endSequence() {
	StateStack.pop_back();
	}
	bool Output::preflightElement(unsigned , void *&) {
	return true;
	}
	void Output::postflightElement(void*) {
	}

	unsigned Output::beginFlowSequence() {
	this->newLineCheck();
	StateStack.push_back(inFlowSeq);
	ColumnAtFlowStart = Column;
	output("[ ");
	NeedFlowSequenceComma = false;
	return 0;
	}
	void Output::endFlowSequence() {
	StateStack.pop_back();
	this->outputUpToEndOfLine(" ]");
	}
	bool Output::preflightFlowElement(unsigned , void *&) {
	if ( NeedFlowSequenceComma )
	output(", ");
	if ( Column > 70 ) {
	output("\n");
	for(int i=0; i < ColumnAtFlowStart; ++i)
	output(" ");
	Column = ColumnAtFlowStart;
	output(" ");
	}
	return true;
	}
	void Output::postflightFlowElement(void*) {
	NeedFlowSequenceComma = true;
	}



	void Output::beginEnumScalar() {
	EnumerationMatchFound = false;
	}

	bool Output::matchEnumScalar(const char *Str, bool Match) {
	if ( Match && !EnumerationMatchFound ) {
	this->newLineCheck();
	this->outputUpToEndOfLine(Str);
	EnumerationMatchFound = true;
	}
	return false;
	}

	void Output::endEnumScalar() {
	if ( !EnumerationMatchFound )
	llvm_unreachable("bad runtime enum value");
	}



	bool Output::beginBitSetScalar(bool &DoClear) {
	this->newLineCheck();
	output("[ ");
	NeedBitValueComma = false;
	DoClear = false;
	return true;
	}

	bool Output::bitSetMatch(const char *Str, bool Matches) {
	if ( Matches ) {
	if ( NeedBitValueComma )
	output(", ");
	this->output(Str);
	NeedBitValueComma = true;
	}
	return false;
	}

	void Output::endBitSetScalar() {
	this->outputUpToEndOfLine(" ]");
	}

	void Output::scalarString(StringRef &S) {
	this->newLineCheck();
	if (S.find('\n') == StringRef::npos) {
	// No embedded new-line chars, just print string.
	this->outputUpToEndOfLine(S);
	return;
	}
	unsigned i = 0;
	unsigned j = 0;
	unsigned End = S.size();
	output("'"); // Starting single quote.
	const char *Base = S.data();
	while (j < End) {
	// Escape a single quote by doubling it.
	if (S[j] == '\'') {
	output(StringRef(&Base[i], j - i + 1));
	output("'");
	i = j + 1;
	}
	++j;
	}
	output(StringRef(&Base[i], j - i));
	this->outputUpToEndOfLine("'"); // Ending single quote.
	}

	void Output::setError(const Twine &message) {
	}


	void Output::output(StringRef s) {
	Column += s.size();
	Out << s;
	}

	void Output::outputUpToEndOfLine(StringRef s) {
	this->output(s);
	if ( StateStack.back() != inFlowSeq )
	NeedsNewLine = true;
	}

	void Output::outputNewLine() {
	Out << "\n";
	Column = 0;
	}

	// if seq at top, indent as if map, then add "- "
	// if seq in middle, use "- " if firstKey, else use " "
	//

	void Output::newLineCheck() {
	if ( ! NeedsNewLine )
	return;
	NeedsNewLine = false;

	this->outputNewLine();

	assert(StateStack.size() > 0);
	unsigned Indent = StateStack.size() - 1;
	bool OutputDash = false;

	if ( StateStack.back() == inSeq ) {
	OutputDash = true;
	}
	else if ( (StateStack.size() > 1)
	&& (StateStack.back() == inMapFirstKey)
	&& (StateStack[StateStack.size()-2] == inSeq) ) {
	--Indent;
	OutputDash = true;
	}

	for (unsigned i=0; i < Indent; ++i) {
	output(" ");
	}
	if ( OutputDash ) {
	output("- ");
	}

	}

	void Output::paddedKey(StringRef key) {
	output(key);
	output(":");
	const char *spaces = " ";
	if ( key.size() < strlen(spaces) )
	output(&spaces[key.size()]);
	else
	output(" ");
	}

	//===----------------------------------------------------------------------===//
	// traits for built-in types
	//===----------------------------------------------------------------------===//

	template<>
	struct ScalarTraits<bool> {
	static void output(const bool &Val, void*, llvm::raw_ostream &Out) {
	Out << ( Val ? "true" : "false");
	}
	static llvm::StringRef input(llvm::StringRef Scalar, void*, bool &Val) {
	if ( Scalar.equals("true") ) {
	Val = true;
	return StringRef();
	}
	else if ( Scalar.equals("false") ) {
	Val = false;
	return StringRef();
	}
	return "invalid boolean";
	}
	};


	template<>
	struct ScalarTraits<StringRef> {
	static void output(const StringRef &Val, void*, llvm::raw_ostream &Out) {
	Out << Val;
	}
	static llvm::StringRef input(llvm::StringRef Scalar, void*, StringRef &Val){
	Val = Scalar;
	return StringRef();
	}
	};


	template<>
	struct ScalarTraits<uint8_t> {
	static void output(const uint8_t &Val, void*, llvm::raw_ostream &Out) {
	// use temp uin32_t because ostream thinks uint8_t is a character
	uint32_t Num = Val;
	Out << Num;
	}
	static llvm::StringRef input(llvm::StringRef Scalar, void*, uint8_t &Val) {
	unsigned long long n;
	if ( getAsUnsignedInteger(Scalar, 0, n) )
	return "invalid number";
	if ( n > 0xFF )
	return "out of range number";
	Val = n;
	return StringRef();
	}
	};


	template<>
	struct ScalarTraits<uint16_t> {
	static void output(const uint16_t &Val, void*, llvm::raw_ostream &Out) {
	Out << Val;
	}
	static llvm::StringRef input(llvm::StringRef Scalar, void*, uint16_t &Val) {
	unsigned long long n;
	if ( getAsUnsignedInteger(Scalar, 0, n) )
	return "invalid number";
	if ( n > 0xFFFF )
	return "out of range number";
	Val = n;
	return StringRef();
	}
	};

	template<>
	struct ScalarTraits<uint32_t> {
	static void output(const uint32_t &Val, void*, llvm::raw_ostream &Out) {
	Out << Val;
	}
	static llvm::StringRef input(llvm::StringRef Scalar, void*, uint32_t &Val) {
	unsigned long long n;
	if ( getAsUnsignedInteger(Scalar, 0, n) )
	return "invalid number";
	if ( n > 0xFFFFFFFFUL )
	return "out of range number";
	Val = n;
	return StringRef();
	}
	};


	template<>
	struct ScalarTraits<uint64_t> {
	static void output(const uint64_t &Val, void*, llvm::raw_ostream &Out) {
	Out << Val;
	}
	static llvm::StringRef input(llvm::StringRef Scalar, void*, uint64_t &Val) {
	unsigned long long N;
	if ( getAsUnsignedInteger(Scalar, 0, N) )
	return "invalid number";
	Val = N;
	return StringRef();
	}
	};


	template<>
	struct ScalarTraits<int8_t> {
	static void output(const int8_t &Val, void*, llvm::raw_ostream &Out) {
	// use temp in32_t because ostream thinks int8_t is a character
	int32_t Num = Val;
	Out << Num;
	}
	static llvm::StringRef input(llvm::StringRef Scalar, void*, int8_t &Val) {
	long long N;
	if ( getAsSignedInteger(Scalar, 0, N) )
	return "invalid number";
	if ( (N > 127) \|\| (N < -128) )
	return "out of range number";
	Val = N;
	return StringRef();
	}
	};


	template<>
	struct ScalarTraits<int16_t> {
	static void output(const int16_t &Val, void*, llvm::raw_ostream &Out) {
	Out << Val;
	}
	static llvm::StringRef input(llvm::StringRef Scalar, void*, int16_t &Val) {
	long long N;
	if ( getAsSignedInteger(Scalar, 0, N) )
	return "invalid number";
	if ( (N > INT16_MAX) \|\| (N < INT16_MIN) )
	return "out of range number";
	Val = N;
	return StringRef();
	}
	};


	template<>
	struct ScalarTraits<int32_t> {
	static void output(const int32_t &Val, void*, llvm::raw_ostream &Out) {
	Out << Val;
	}
	static llvm::StringRef input(llvm::StringRef Scalar, void*, int32_t &Val) {
	long long N;
	if ( getAsSignedInteger(Scalar, 0, N) )
	return "invalid number";
	if ( (N > INT32_MAX) \|\| (N < INT32_MIN) )
	return "out of range number";
	Val = N;
	return StringRef();
	}
	};

	template<>
	struct ScalarTraits<int64_t> {
	static void output(const int64_t &Val, void*, llvm::raw_ostream &Out) {
	Out << Val;
	}
	static llvm::StringRef input(llvm::StringRef Scalar, void*, int64_t &Val) {
	long long N;
	if ( getAsSignedInteger(Scalar, 0, N) )
	return "invalid number";
	Val = N;
	return StringRef();
	}
	};

	template<>
	struct ScalarTraits<double> {
	static void output(const double &Val, void*, llvm::raw_ostream &Out) {
	Out << format("%g", Val);
	}
	static llvm::StringRef input(llvm::StringRef Scalar, void*, double &Val) {
	SmallString<32> buff(Scalar.begin(), Scalar.end());
	char *end;
	Val = strtod(buff.c_str(), &end);
	if ( *end != '\0' )
	return "invalid floating point number";
	return StringRef();
	}
	};

	template<>
	struct ScalarTraits<float> {
	static void output(const float &Val, void*, llvm::raw_ostream &Out) {
	Out << format("%g", Val);
	}
	static llvm::StringRef input(llvm::StringRef Scalar, void*, float &Val) {
	SmallString<32> buff(Scalar.begin(), Scalar.end());
	char *end;
	Val = strtod(buff.c_str(), &end);
	if ( *end != '\0' )
	return "invalid floating point number";
	return StringRef();
	}
	};



	template<>
	struct ScalarTraits<Hex8> {
	static void output(const Hex8 &Val, void*, llvm::raw_ostream &Out) {
	uint8_t Num = Val;
	Out << format("0x%02X", Num);
	}
	static llvm::StringRef input(llvm::StringRef Scalar, void*, Hex8 &Val) {
	unsigned long long n;
	if ( getAsUnsignedInteger(Scalar, 0, n) )
	return "invalid hex8 number";
	if ( n > 0xFF )
	return "out of range hex8 number";
	Val = n;
	return StringRef();
	}
	};


	template<>
	struct ScalarTraits<Hex16> {
	static void output(const Hex16 &Val, void*, llvm::raw_ostream &Out) {
	uint16_t Num = Val;
	Out << format("0x%04X", Num);
	}
	static llvm::StringRef input(llvm::StringRef Scalar, void*, Hex16 &Val) {
	unsigned long long n;
	if ( getAsUnsignedInteger(Scalar, 0, n) )
	return "invalid hex16 number";
	if ( n > 0xFFFF )
	return "out of range hex16 number";
	Val = n;
	return StringRef();
	}
	};

	template<>
	struct ScalarTraits<Hex32> {
	static void output(const Hex32 &Val, void*, llvm::raw_ostream &Out) {
	uint32_t Num = Val;
	Out << format("0x%08X", Num);
	}
	static llvm::StringRef input(llvm::StringRef Scalar, void*, Hex32 &Val) {
	unsigned long long n;
	if ( getAsUnsignedInteger(Scalar, 0, n) )
	return "invalid hex32 number";
	if ( n > 0xFFFFFFFFUL )
	return "out of range hex32 number";
	Val = n;
	return StringRef();
	}
	};


	template<>
	struct ScalarTraits<Hex64> {
	static void output(const Hex64 &Val, void*, llvm::raw_ostream &Out) {
	uint64_t Num = Val;
	Out << format("0x%016llX", Num);
	}
	static llvm::StringRef input(llvm::StringRef Scalar, void*, Hex64 &Val) {
	unsigned long long Num;
	if ( getAsUnsignedInteger(Scalar, 0, Num) )
	return "invalid hex64 number";
	Val = Num;
	return StringRef();
	}
	};




	// We want all the ScalarTrait specialized on built-in types
	// to be instantiated here.
	template <typename T>
	struct ForceUse {
	ForceUse() : oproc(ScalarTraits<T>::output), iproc(ScalarTraits<T>::input) {}
	void (oproc)(const T &, void, llvm::raw_ostream &);
	llvm::StringRef (iproc)(llvm::StringRef, void, T &);
	};

	static ForceUse<bool> Dummy1;
	static ForceUse<llvm::StringRef> Dummy2;
	static ForceUse<uint8_t> Dummy3;
	static ForceUse<uint16_t> Dummy4;
	static ForceUse<uint32_t> Dummy5;
	static ForceUse<uint64_t> Dummy6;
	static ForceUse<int8_t> Dummy7;
	static ForceUse<int16_t> Dummy8;
	static ForceUse<int32_t> Dummy9;
	static ForceUse<int64_t> Dummy10;
	static ForceUse<float> Dummy11;
	static ForceUse<double> Dummy12;
	static ForceUse<Hex8> Dummy13;
	static ForceUse<Hex16> Dummy14;
	static ForceUse<Hex32> Dummy15;
	static ForceUse<Hex64> Dummy16;



	} // namespace yaml
	} // namespace llvm