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RooNameReg.h
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1/*****************************************************************************
2 * Project: RooFit *
3 * Package: RooFitCore *
4 * File: $Id: RooNameReg.h,v 1.3 2007/05/11 09:11:30 verkerke Exp $
5 * Authors: *
6 * WV, Wouter Verkerke, UC Santa Barbara, verkerke@slac.stanford.edu *
7 * DK, David Kirkby, UC Irvine, dkirkby@uci.edu *
8 * *
9 * Copyright (c) 2000-2005, Regents of the University of California *
10 * and Stanford University. All rights reserved. *
11 * *
12 * Redistribution and use in source and binary forms, *
13 * with or without modification, are permitted according to the terms *
14 * listed in LICENSE (http://roofit.sourceforge.net/license.txt) *
15 *****************************************************************************/
16#ifndef ROO_NAME_REG
17#define ROO_NAME_REG
18
19#include "TNamed.h"
20
21#include <memory>
22#include <unordered_map>
23#include <string>
24
25class RooNameReg : public TNamed {
26public:
27
28 static RooNameReg& instance() ;
29 ~RooNameReg() override;
30 const TNamed* constPtr(const char* stringPtr) ;
31 /// Return C++ string corresponding to given TNamed pointer.
32 inline static const char* constStr(const TNamed* ptr) {
33 return ptr ? ptr->GetName() : nullptr;
34 }
35 static const TNamed* ptr(const char* stringPtr) ;
36 /// Return C++ string corresponding to given TNamed pointer.
37 inline static const char* str(const TNamed* ptr) {
38 return ptr ? ptr->GetName() : nullptr;
39 }
40 static const TNamed* known(const char* stringPtr) ;
41 static const std::size_t& renameCounter() ;
42
43 enum {
44 kRenamedArg = BIT(19) ///< TNamed flag to indicate that some RooAbsArg has been renamed (flag set in new name)
45 };
46
47protected:
48 RooNameReg();
49// RooNameReg(Int_t hashSize = 31) ;
50 RooNameReg(const RooNameReg& other) = delete;
51
52 friend class RooAbsArg;
53 friend class RooAbsData;
54 static void incrementRenameCounter() ;
55
56 std::unordered_map<std::string,std::unique_ptr<TNamed>> _map;
57 std::size_t _renameCounter = 0;
58
59// ClassDefOverride(RooNameReg,1) // String name registry
60};
61
62#endif
63
64
#define BIT(n)
Definition: Rtypes.h:85
RooAbsArg is the common abstract base class for objects that represent a value and a "shape" in RooFi...
Definition: RooAbsArg.h:71
RooAbsData is the common abstract base class for binned and unbinned datasets.
Definition: RooAbsData.h:62
RooNameReg is a registry for const char* names.
Definition: RooNameReg.h:25
RooNameReg(const RooNameReg &other)=delete
std::unordered_map< std::string, std::unique_ptr< TNamed > > _map
Definition: RooNameReg.h:56
static const char * constStr(const TNamed *ptr)
Return C++ string corresponding to given TNamed pointer.
Definition: RooNameReg.h:32
static const char * str(const TNamed *ptr)
Return C++ string corresponding to given TNamed pointer.
Definition: RooNameReg.h:37
static const TNamed * ptr(const char *stringPtr)
Return a unique TNamed pointer for given C++ string.
Definition: RooNameReg.cxx:81
std::size_t _renameCounter
Definition: RooNameReg.h:57
const TNamed * constPtr(const char *stringPtr)
Return a unique TNamed pointer for given C++ string.
Definition: RooNameReg.cxx:60
static RooNameReg & instance()
Return reference to singleton instance.
Definition: RooNameReg.cxx:50
~RooNameReg() override
Destructor.
Definition: RooNameReg.cxx:42
static const TNamed * known(const char *stringPtr)
If the name is already known, return its TNamed pointer. Otherwise return 0 (don't register the name)...
Definition: RooNameReg.cxx:91
@ kRenamedArg
TNamed flag to indicate that some RooAbsArg has been renamed (flag set in new name)
Definition: RooNameReg.h:44
static void incrementRenameCounter()
The renaming counter has to be incremented every time a RooAbsArg is renamed.
Definition: RooNameReg.cxx:106
static const std::size_t & renameCounter()
renamed in this RooFit process.
Definition: RooNameReg.cxx:115
The TNamed class is the base class for all named ROOT classes.
Definition: TNamed.h:29
const char * GetName() const override
Returns name of object.
Definition: TNamed.h:47