Method copyMutationPrimitiveType

lib/generation/ProtobufMutator.cpp:160–204

}

std::string ProtobufMutator::copyMutationPrimitiveType(const Type &MutationType,
                                                       const FuzzInput &Input) {
  assert(MutationType.isPrimitiveType() && "Unexpected Program State");
  std::string Code;
  auto InputDef = Input.getDef();
  auto LocalVarName = Input.getProtoVarName();
  auto MutationVal = getProtoVarVal(LocalVarName);
  if (InputDef.ArrayLen) {
    const auto *RelatedArrayDef = Input.ArrayDef;
    assert(RelatedArrayDef && "Incomplete Arr-ArrLen relationship");
    const auto &RelatedArrType = RelatedArrayDef->DataType;
    assert(RelatedArrType && "Incomplete Arr-ArrLen relationship");
    // NOTE: below condition statements requires order preserving. char [10]
    // type is both a fixed length array ptr and string ptr, however at here
    // it should be handled as a fixed length array ptr.
    if (RelatedArrType->isFixedLengthArrayPtr()) {
      auto ArrLength =
          std::to_string(RelatedArrType.get()->getArrayInfo()->getMaxLength());
      // Mutation array can be larger than fuzz var array
      Code += SrcGenerator::genAssignStmtWithMaxCheck(
          LocalVarName,
          getProtoVarValSize(util::getProtoVarName(RelatedArrayDef->ID)),
          ArrLength);
    }
    else if (RelatedArrType->isStringType()) {
      Code += SrcGenerator::genAssignStmt(
          LocalVarName,
          getProtoVarValSize(util::getProtoVarName(RelatedArrayDef->ID)));
    }
    else
      assert(false && "Incomplete Arr-ArrLen relationship");
  } else if (InputDef.BufferAllocSize) {
    // Buffer size must be over 0
    Code += "if (" + MutationVal + " < 1) return;";
    Code +=
        SrcGenerator::genAssignStmt(LocalVarName, MutationVal + " & 0x3fff");
  } else if (InputDef.LoopExit) {
    Code += "if (" + MutationVal + " < 0) return;";
    Code +=
        SrcGenerator::genAssignStmt(LocalVarName, MutationVal + " & 0x3fff");
  } else {
    Code += SrcGenerator::genAssignStmt(LocalVarName, MutationVal);
  }
  return Code;
}

std::string
ProtobufMutator::saveMutationToFile(const std::string &MutationVarName) {