262 struct ByteCodeWriter {  struct
263   ByteCodeWriter(SmallVectorImpl<ByteCodeField> &bytecode, Generator &generator)  in ByteCodeWriter()  argument
267   void append(ByteCodeField field) { bytecode.push_back(field); }  in append()
268   void append(OpCode opCode) { bytecode.push_back(opCode); }  in append()
271   void append(ByteCodeAddr field) {  in append()
282   void append(SuccessorRange successors) {  in append()
292   void appendPDLValueList(OperandRange values) {  in appendPDLValueList()
311   using has_pointer_traits = decltype(std::declval<T>().getAsOpaquePointer());
318   append(T value) {  in append()
325   append(T range) {  in append()
333   void append(FieldTy field, Field2Ty field2, FieldTys... fields) {  in append()
339   DenseMap<Block *, SmallVector<unsigned, 4>> unresolvedSuccessorRefs;
342   SmallVectorImpl<ByteCodeField> &bytecode;
345   Generator &generator;