libzypp  17.28.4
SolvIterMixin.h
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12 #ifndef ZYPP_SAT_SOLVITERMIXIN_H
13 #define ZYPP_SAT_SOLVITERMIXIN_H
14 
15 #include <iosfwd>
16 
17 #include <zypp/base/PtrTypes.h>
18 #include <zypp/base/Iterator.h>
19 #include <zypp/base/Hash.h>
20 
21 #include <zypp/sat/Solvable.h>
22 #include <zypp/PoolItem.h>
23 #include <zypp/ui/Selectable.h>
24 
26 namespace zypp
27 {
28 
30  namespace sat
31  {
32 
33  class Solvable;
34  //class asSolvable; // transform functor
35 
36  namespace solvitermixin_detail
37  {
43  struct UnifyByIdent
44  {
45  bool operator()( const Solvable & solv_r ) const;
46 
47  typedef std::unordered_set<unsigned> Uset;
49  : _uset( new Uset )
50  {}
51  shared_ptr<Uset> _uset;
52  };
53 
54 
55  } // namespace solvitermixin_detail
56 
57 
59  //
60  // CLASS NAME : SolvIterMixin<Derived,DerivedSolvable_iterator>
61  //
115  template <class Derived,class DerivedSolvable_iterator>
117  {
118  public:
119  typedef size_t size_type;
120 
121  public:
128  bool empty() const
129  { return( self().begin() == self().end() ); }
130 
132  size_type size() const
133  { size_type s = 0; for_( it, self().begin(), self().end() ) ++s; return s;}
134 
136  template<class TSolv>
137  bool contains( const TSolv & solv_r ) const
138  {
139  Solvable solv( asSolvable()( solv_r ) );
140  for_( it, self().begin(), self().end() )
141  if ( *it == solv )
142  return true;
143  return false;
144  }
146 
147  public:
150  typedef DerivedSolvable_iterator Solvable_iterator;
152  { return self().begin(); }
154  { return self().end(); }
156  { return makeIterable( solvableBegin(), solvableEnd() ); }
158 
161  typedef transform_iterator<asPoolItem,Solvable_iterator> PoolItem_iterator;
163  { return make_transform_iterator( solvableBegin(), asPoolItem() ); }
165  { return make_transform_iterator( solvableEnd(), asPoolItem() ); }
167  { return makeIterable( poolItemBegin(), poolItemEnd() ); }
169 
170  private:
171  typedef filter_iterator<solvitermixin_detail::UnifyByIdent,Solvable_iterator> UnifiedSolvable_iterator;
172  public:
175  typedef transform_iterator<ui::asSelectable,UnifiedSolvable_iterator> Selectable_iterator;
177  { return make_transform_iterator( unifiedSolvableBegin(), ui::asSelectable() ); }
179  { return make_transform_iterator( unifiedSolvableEnd(), ui::asSelectable() ); }
181  { return makeIterable( selectableBegin(), selectableEnd() ); }
183 
184  private:
188  { return make_filter_iterator( solvitermixin_detail::UnifyByIdent(), solvableBegin(), solvableEnd() ); }
190  { return make_filter_iterator( solvitermixin_detail::UnifyByIdent(), solvableEnd(), solvableEnd() ); }
192  { return makeIterable( unifiedSolvableBegin(), unifiedSolvableEnd() ); }
194  private:
195  const Derived & self() const
196  { return *static_cast<const Derived*>( this ); }
197  protected:
201  void operator=(const SolvIterMixin &) {}
202  };
204 
206  } // namespace sat
209 } // namespace zypp
211 #endif // ZYPP_SAT_SOLVITERMIXIN_H
Base class providing common iterator types based on a Solvable iterator.
transform_iterator< asPoolItem, Solvable_iterator > PoolItem_iterator
Solvable_iterator solvableBegin() const
SolvIterMixin(const SolvIterMixin &)
Selectable_iterator selectableBegin() const
void operator=(const SolvIterMixin &)
Iterable< Solvable_iterator > solvable() const
filter_iterator< solvitermixin_detail::UnifyByIdent, Solvable_iterator > UnifiedSolvable_iterator
DerivedSolvable_iterator Solvable_iterator
bool contains(const TSolv &solv_r) const
Whether collection contains a specific Solvable.
Iterable< Selectable_iterator > selectable() const
transform_iterator< ui::asSelectable, UnifiedSolvable_iterator > Selectable_iterator
PoolItem_iterator poolItemEnd() const
Selectable_iterator selectableEnd() const
Iterable< UnifiedSolvable_iterator > unifiedSolvable() const
Solvable_iterator solvableEnd() const
PoolItem_iterator poolItemBegin() const
bool empty() const
Whether the collection is epmty.
Iterable< PoolItem_iterator > poolItem() const
UnifiedSolvable_iterator unifiedSolvableBegin() const
UnifiedSolvable_iterator unifiedSolvableEnd() const
size_type size() const
Size of the collection.
A Solvable object within the sat Pool.
Definition: Solvable.h:54
Easy-to use interface to the ZYPP dependency resolver.
Definition: CodePitfalls.doc:2
Solvable to PoolItem transform functor.
Definition: PoolItem.h:199
To Solvable transform functor.
Definition: Solvable.h:558
std::unordered_set< unsigned > Uset
Definition: SolvIterMixin.h:47
bool operator()(const Solvable &solv_r) const
Solvable to Selectable transform functor.
Definition: Selectable.h:579
#define for_(IT, BEG, END)
Convenient for-loops using iterator.
Definition: Easy.h:28