cprover
two_value_pointer_abstract_objectt Class Reference

#include <two_value_pointer_abstract_object.h>

+ Inheritance diagram for two_value_pointer_abstract_objectt:
+ Collaboration diagram for two_value_pointer_abstract_objectt:

Public Member Functions

 two_value_pointer_abstract_objectt (const typet &type)
 
 two_value_pointer_abstract_objectt (const typet &type, bool top, bool bottom)
 Start the abstract object at either top or bottom or neither Asserts if both top and bottom are true. More...
 
 two_value_pointer_abstract_objectt (const exprt &expr, const abstract_environmentt &environment, const namespacet &ns)
 
- Public Member Functions inherited from abstract_pointer_objectt
 abstract_pointer_objectt (const typet &type)
 
 abstract_pointer_objectt (const typet &type, bool top, bool bottom)
 Start the abstract object at either top or bottom or neither Asserts if both top and bottom are true. More...
 
 abstract_pointer_objectt (const exprt &expr, const abstract_environmentt &environment, const namespacet &ns)
 
abstract_object_pointert expression_transform (const exprt &expr, const std::vector< abstract_object_pointert > &operands, const abstract_environmentt &environment, const namespacet &ns) const override
 Interface for transforms. More...
 
abstract_object_pointert write (abstract_environmentt &environment, const namespacet &ns, const std::stack< exprt > &stack, const exprt &specifier, const abstract_object_pointert &value, bool merging_write) const override
 A helper function to evaluate writing to a component of an abstract object. More...
 
void get_statistics (abstract_object_statisticst &statistics, abstract_object_visitedt &visited, const abstract_environmentt &env, const namespacet &ns) const override
 
virtual abstract_object_pointert read_dereference (const abstract_environmentt &env, const namespacet &ns) const
 Evaluate reading the pointer's value. More...
 
virtual abstract_object_pointert write_dereference (abstract_environmentt &environment, const namespacet &ns, const std::stack< exprt > &stack, const abstract_object_pointert &value, bool merging_write) const
 Evaluate writing to a pointer's value. More...
 
- Public Member Functions inherited from abstract_objectt
 abstract_objectt (const typet &type)
 
 abstract_objectt (const typet &type, bool top, bool bottom)
 Start the abstract object at either top or bottom or neither Asserts if both top and bottom are true. More...
 
 abstract_objectt (const exprt &expr, const abstract_environmentt &environment, const namespacet &ns)
 Construct an abstract object from the expression. More...
 
 abstract_objectt (const typet &type, const exprt &expr, const abstract_environmentt &environment, const namespacet &ns)
 Ctor for building object of types that differ from the types of input expressions. More...
 
virtual ~abstract_objectt ()
 
virtual const typettype () const
 Get the real type of the variable this abstract object is representing. More...
 
virtual bool is_top () const
 Find out if the abstract object is top. More...
 
virtual bool is_bottom () const
 Find out if the abstract object is bottom. More...
 
virtual bool verify () const
 Verify the internal structure of an abstract_object is correct. More...
 
virtual exprt to_constant () const
 Converts to a constant expression if possible. More...
 
virtual void output (std::ostream &out, const class ai_baset &ai, const namespacet &ns) const
 Print the value of the abstract object. More...
 
virtual bool has_been_modified (const abstract_object_pointert before) const
 Determine whether 'this' abstract_object has been modified in comparison to a previous 'before' state. More...
 
virtual abstract_object_pointert meet (const abstract_object_pointert &other) const
 Base implementation of the meet operation: only used if no more precise abstraction can be used, can only result in {TOP, BOTTOM, one of the original objects}. More...
 
virtual abstract_object_pointert update_location_context (const locationst &locations, const bool update_sub_elements) const
 Update the location context for an abstract object, potentially propogating the update to any children of this abstract object. More...
 
abstract_object_pointert make_top () const
 
abstract_object_pointert clear_top () const
 
virtual abstract_object_pointert unwrap_context () const
 
virtual abstract_object_pointert visit_sub_elements (const abstract_object_visitort &visitor) const
 Apply a visitor operation to all sub elements of this abstract_object. More...
 
virtual size_t internal_hash () const
 
virtual bool internal_equality (const abstract_object_pointert &other) const
 

Additional Inherited Members

- Public Types inherited from abstract_objectt
typedef std::set< goto_programt::const_targettlocationst
 
typedef sharing_mapt< irep_idt, abstract_object_pointert, false, irep_id_hashshared_mapt
 
- Static Public Member Functions inherited from abstract_objectt
static void dump_map (std::ostream out, const shared_mapt &m)
 
static void dump_map_diff (std::ostream out, const shared_mapt &m1, const shared_mapt &m2)
 Dump all elements in m1 that are different or missing in m2. More...
 
static abstract_object_pointert merge (abstract_object_pointert op1, abstract_object_pointert op2, bool &out_modifications)
 Clones the first parameter and merges it with the second. More...
 
static abstract_object_pointert merge (abstract_object_pointert op1, abstract_object_pointert op2)
 
static abstract_object_pointert meet (abstract_object_pointert op1, abstract_object_pointert op2, bool &out_modifications)
 Interface method for the meet operation. More...
 
- Protected Types inherited from abstract_objectt
template<class T >
using internal_sharing_ptrt = std::shared_ptr< T >
 
typedef internal_sharing_ptrt< class abstract_objecttinternal_abstract_object_pointert
 
- Protected Member Functions inherited from abstract_objectt
virtual internal_abstract_object_pointert mutable_clone () const
 
abstract_object_pointert abstract_object_merge (const abstract_object_pointert other) const
 Create a new abstract object that is the result of the merge, unless the object would be unchanged, then would return itself. More...
 
bool should_use_base_merge (const abstract_object_pointert other) const
 To detect the cases where the base merge is sufficient to do a merge We can't do if this->is_bottom() since we want the specific. More...
 
virtual abstract_object_pointert merge (abstract_object_pointert other) const
 Create a new abstract object that is the result of the merge, unless the object would be unchanged, then would return itself. More...
 
abstract_object_pointert abstract_object_meet (const abstract_object_pointert &other) const
 Helper function for base meet. More...
 
bool should_use_base_meet (const abstract_object_pointert &other) const
 Helper function to decide if base meet implementation should be used. More...
 
void set_top ()
 
void set_not_top ()
 

Detailed Description

Definition at line 13 of file two_value_pointer_abstract_object.h.

Constructor & Destructor Documentation

◆ two_value_pointer_abstract_objectt() [1/3]

two_value_pointer_abstract_objectt::two_value_pointer_abstract_objectt ( const typet type)
inlineexplicit
Parameters
typethe type the abstract_object is representing

Definition at line 17 of file two_value_pointer_abstract_object.h.

◆ two_value_pointer_abstract_objectt() [2/3]

two_value_pointer_abstract_objectt::two_value_pointer_abstract_objectt ( const typet type,
bool  top,
bool  bottom 
)
inline

Start the abstract object at either top or bottom or neither Asserts if both top and bottom are true.

Parameters
typethe type the abstract_object is representing
topis the abstract_object starting as top
bottomis the abstract_object starting as bottom

Definition at line 28 of file two_value_pointer_abstract_object.h.

◆ two_value_pointer_abstract_objectt() [3/3]

two_value_pointer_abstract_objectt::two_value_pointer_abstract_objectt ( const exprt expr,
const abstract_environmentt environment,
const namespacet ns 
)
inline
Parameters
exprthe expression to use as the starting pointer for an abstract object
environmentthe environment in which the pointer is being created
nsthe current namespace

Definition at line 38 of file two_value_pointer_abstract_object.h.


The documentation for this class was generated from the following file: