reco::parser::ExpressionVar Class Reference

Evaluate an object's method or datamember (or chain of them) to get a number. More...

#include <ExpressionVar.h>

Inheritance diagram for reco::parser::ExpressionVar:

Public Member Functions
	ExpressionVar (const std::vector< MethodInvoker > &methods, method::TypeCode retType)
	ExpressionVar (const ExpressionVar &)
double	value (const edm::ObjectWithDict &) const override
	~ExpressionVar () override
Public Member Functions inherited from reco::parser::ExpressionBase
virtual	~ExpressionBase ()

Static Public Member Functions
static void	delStorage (edm::ObjectWithDict &)
static bool	isValidReturnType (method::TypeCode)
static bool	makeStorage (edm::ObjectWithDict &obj, const edm::TypeWithDict &retType)
static double	objToDouble (const edm::ObjectWithDict &obj, method::TypeCode type)

Private Member Functions
void	initObjects_ ()

Private Attributes
std::vector< MethodInvoker >	methods_
std::vector< bool >	needsDestructor_
std::vector< edm::ObjectWithDict >	objects_
method::TypeCode	retType_

Detailed Description

Evaluate an object's method or datamember (or chain of them) to get a number.

Definition at line 23 of file ExpressionVar.h.

Constructor & Destructor Documentation

ExpressionVar::ExpressionVar	(	const std::vector< MethodInvoker > &	methods,
		method::TypeCode	retType
	)

Definition at line 31 of file ExpressionVar.cc.

References initObjects_().

  : methods_(methods)
  , retType_(retType)
{
  initObjects_();
}

ExpressionVar::ExpressionVar

(

const ExpressionVar &

rhs

)

Definition at line 39 of file ExpressionVar.cc.

References initObjects_().

  : methods_(rhs.methods_)
  , retType_(rhs.retType_)
{
  initObjects_();
}

ExpressionVar::~ExpressionVar ( )

override

Definition at line 46 of file ExpressionVar.cc.

References delStorage(), Exhume::I, and objects_.

{
  for (std::vector<edm::ObjectWithDict>::iterator I = objects_.begin(),
      E = objects_.end(); I != E; ++I) {
    delStorage(*I);
  }
  objects_.clear();
}

Member Function Documentation

void ExpressionVar::delStorage ( edm::ObjectWithDict &  obj )

static

delete an objecty, if needed this method is used also from the LazyInvoker code

Definition at line 56 of file ExpressionVar.cc.

References edm::ObjectWithDict::address(), edm::TypeWithDict::deallocate(), edm::TypeWithDict::isPointer(), edm::TypeWithDict::isReference(), AlCaHLTBitMon_ParallelJobs::p, and edm::ObjectWithDict::typeOf().

Referenced by ~ExpressionVar(), and reco::parser::SingleInvoker::~SingleInvoker().

{
  if (!obj.address()) {
    return;
  }
  if (obj.typeOf().isPointer() || obj.typeOf().isReference()) {
    // just delete a void*, as that's what it was
    void** p = static_cast<void**>(obj.address());
    delete p;
  }
  else {
    //std::cout << "Calling Destruct on a " <<
    //  obj.typeOf().qualifiedName() << std::endl;
    obj.typeOf().deallocate(obj.address());
  }
}

void ExpressionVar::initObjects_ ( )

private

Definition at line 15 of file ExpressionVar.cc.

References Exhume::I.

Referenced by ExpressionVar().

{
  objects_.resize(methods_.size());
  std::vector<edm::ObjectWithDict>::iterator IO = objects_.begin();
  for (std::vector<MethodInvoker>::const_iterator I = methods_.begin(), E = methods_.end(); I != E; ++IO, ++I) {
    if (I->isFunction()) {
      edm::TypeWithDict retType = I->method().finalReturnType();
      needsDestructor_.push_back(makeStorage(*IO, retType));
    }
    else {
      *IO = edm::ObjectWithDict();
      needsDestructor_.push_back(false);
    }
  }
}

bool ExpressionVar::isValidReturnType ( method::TypeCode  retType )

static

Definition at line 96 of file ExpressionVar.cc.

References reco::method::boolType, reco::method::charType, reco::method::doubleType, reco::method::enumType, reco::method::floatType, reco::method::intType, reco::method::longType, AlcaSiPixelAliHarvester0T_cff::method, reco::method::shortType, reco::method::uCharType, reco::method::uIntType, reco::method::uLongType, and reco::method::uShortType.

Referenced by reco::parser::ExpressionVarSetter::push(), and reco::parser::SingleInvoker::retToDouble().

{
  using namespace method;
  bool ret = false;
  switch (retType) {
    case (doubleType) :
      ret = true;
      break;
    case (floatType) :
      ret = true;
      break;
    case (intType) :
      ret = true;
      break;
    case (uIntType) :
      ret = true;
      break;
    case (shortType) :
      ret = true;
      break;
    case (uShortType) :
      ret = true;
      break;
    case (longType) :
      ret = true;
      break;
    case (uLongType) :
      ret = true;
      break;
    case (charType) :
      ret = true;
      break;
    case (uCharType) :
      ret = true;
      break;
    case (boolType) :
      ret = true;
      break;
    case (enumType) :
      ret = true;
      break;
    case (invalid):
    default:
      break;
  }
  return ret;
}

bool ExpressionVar::makeStorage ( edm::ObjectWithDict &  obj, const edm::TypeWithDict &  retType  )

static

allocate an object to hold the result of a given member (if needed) this method is used also from the LazyInvoker code returns true if objects returned from this will require a destructor

Definition at line 74 of file ExpressionVar.cc.

References edm::TypeWithDict::allocate(), edm::TypeWithDict::byName(), edm::ObjectWithDict::byType(), edm::TypeWithDict::isClass(), edm::TypeWithDict::isPointer(), and edm::TypeWithDict::isReference().

Referenced by reco::parser::SingleInvoker::SingleInvoker().

{
  static const edm::TypeWithDict tVoid(edm::TypeWithDict::byName("void"));
  bool ret = false;
  if (retType == tVoid) {
    obj = edm::ObjectWithDict::byType(tVoid);
  }
  else if (retType.isPointer() || retType.isReference()) {
    // in this case, I have to allocate a void*, not an object!
    obj = edm::ObjectWithDict(retType, new void*);
  }
  else {
    obj = edm::ObjectWithDict(retType, retType.allocate());
    ret = retType.isClass();
    //std::cout << "ExpressionVar: reserved memory at "  << obj.address() <<
    //  " for a " << retType.qualifiedName() << " returned by " <<
    //  member.name() << std::endl;
  }
  return ret;
}

double ExpressionVar::objToDouble ( const edm::ObjectWithDict &  obj, method::TypeCode  type  )

static

performs the needed conversion from void* to double this method is used also from the ExpressionLazyVar code

Definition at line 162 of file ExpressionVar.cc.

References edm::ObjectWithDict::address(), reco::method::boolType, reco::method::charType, reco::method::doubleType, reco::method::enumType, reco::method::floatType, reco::method::intType, reco::method::longType, AlcaSiPixelAliHarvester0T_cff::method, reco::method::shortType, reco::method::uCharType, reco::method::uIntType, reco::method::uLongType, and reco::method::uShortType.

Referenced by reco::parser::SingleInvoker::retToDouble(), and value().

{
  using namespace method;
  void* addr = obj.address();
  double ret = 0.0;
  switch (type) {
    case doubleType:
      ret = *static_cast<double*>(addr);
      break;
    case floatType:
      ret = *static_cast<float*>(addr);
      break;
    case intType:
      ret = *static_cast<int*>(addr);
      break;
    case uIntType:
      ret = *static_cast<unsigned int*>(addr);
      break;
    case shortType:
      ret = *static_cast<short*>(addr);
      break;
    case uShortType:
      ret = *static_cast<unsigned short*>(addr);
      break;
    case longType:
      ret = *static_cast<long*>(addr);
      break;
    case uLongType:
      ret = *static_cast<unsigned long*>(addr);
      break;
    case charType:
      ret = *static_cast<char*>(addr);
      break;
    case uCharType:
      ret = *static_cast<unsigned char*>(addr);
      break;
    case boolType:
      ret = *static_cast<bool*>(addr);
      break;
    case enumType:
      ret = *static_cast<int*>(addr);
      break;
    default:
      //FIXME: Error not caught in production build!
      assert(false && "objToDouble: invalid type!");
      break;
  };
  return ret;
}

double ExpressionVar::value ( const edm::ObjectWithDict &  obj ) const

overridevirtual

Implements reco::parser::ExpressionBase.

Definition at line 144 of file ExpressionVar.cc.

References Exhume::I, methods_, needsDestructor_, objects_, objToDouble(), retType_, and heppy_batch::val.

Referenced by Types.int32::__nonzero__(), Types.uint32::__nonzero__(), Types.int64::__nonzero__(), Types.uint64::__nonzero__(), Types.double::__nonzero__(), Types.bool::__nonzero__(), Types.string::__nonzero__(), average.Average::average(), Vispa.Views.PropertyView.FileProperty::buttonClicked(), Types.string::configValue(), Types.FileInPath::configValue(), Mixins.UsingBlock::dumpPython(), Types.int32::insertInto(), Types.uint32::insertInto(), Types.int64::insertInto(), Types.uint64::insertInto(), Types.double::insertInto(), Mixins.UsingBlock::insertInto(), Types.bool::insertInto(), Types.string::insertInto(), Types.FileInPath::insertInto(), Types.vint32::insertInto(), Types.vuint32::insertInto(), Types.vint64::insertInto(), Types.vuint64::insertInto(), Types.vdouble::insertInto(), Types.vbool::insertInto(), Types.vstring::insertInto(), and Vispa.Views.PropertyView.FileProperty::labelDoubleClicked().

{
  edm::ObjectWithDict val(obj);
  std::vector<edm::ObjectWithDict>::iterator IO = objects_.begin();
  for (std::vector<MethodInvoker>::const_iterator I = methods_.begin(), E = methods_.end(); I != E; ++I, ++IO) {
    val = I->invoke(val, *IO);
  }
  double ret = objToDouble(val, retType_);
  std::vector<bool>::const_reverse_iterator RIB = needsDestructor_.rbegin();
  for (std::vector<edm::ObjectWithDict>::reverse_iterator RI = objects_.rbegin(), RE = objects_.rend(); RI != RE; ++RIB, ++RI) {
    if (*RIB) {
      RI->destruct(false);
    }
  }
  return ret;
}

Member Data Documentation

std::vector<MethodInvoker> reco::parser::ExpressionVar::methods_

private

Definition at line 25 of file ExpressionVar.h.

Referenced by value().

std::vector<bool> reco::parser::ExpressionVar::needsDestructor_

mutableprivate

Definition at line 27 of file ExpressionVar.h.

Referenced by value().

std::vector<edm::ObjectWithDict> reco::parser::ExpressionVar::objects_

mutableprivate

Definition at line 26 of file ExpressionVar.h.

Referenced by value(), and ~ExpressionVar().

method::TypeCode reco::parser::ExpressionVar::retType_

private

Definition at line 28 of file ExpressionVar.h.

Referenced by value().