A partial implementation of the VarMapBase interface that is common to both VarMap<T> and the VarMap<vector<T> > partial specialization. More...

#include <environment.h>

Inheritance diagram for infact::VarMapImpl< T, Derived >:

Public Member Functions
	VarMapImpl (const string &name, Environment *env, bool is_primitive=true)

virtual	~VarMapImpl ()

bool	Get (const string &varname, T *value) const
	Assigns the value of the specified variable to the object pointed to by the `value` parameter. More...

virtual bool	Defined (const string &varname) const
	Returns whether the specified variable has a definition in this environment. More...

void	Set (const string &varname, T value)
	Sets the specified variable to the specified value. More...

virtual void	Print (ostream &os) const
	Prints out a human-readable string to the specified output stream containing the variables, their type and, if primitive, their values. More...

virtual VarMapBase *	Copy (Environment *env) const
	Returns a newly constructed copy of this VarMap. More...

Public Member Functions inherited from infact::VarMapBase
	VarMapBase (const string &name, Environment *env, bool is_primitive)
	Constructs a base class for a concrete implementation providing a mapping from variables of a particular type to their values. More...

virtual	~VarMapBase ()

virtual bool	IsPrimitive () const
	Returns whether this instance contains primitive or primtive vector variables. More...

virtual const string &	Name () const
	Returns the type name of the variables of this instance. More...

virtual void	ReadAndSet (const string &varname, StreamTokenizer &st)=0
	Reads the next value (primitive or spec for constructing a Factory-constructible object) from the specified stream tokenizer and sets the specified variable to that value. More...

Protected Member Functions
bool	ReadAndSetFromExistingVariable (const string &varname, StreamTokenizer &st)
	Checks if the next token is an identifier and is a variable in the environment, and, if so, sets varname to the variable’s value. More...

Environment *	env ()
	A protected method to access the environment contained by this VarMapBase instance, for the two concrete VarMap implementations, below. More...

Protected Member Functions inherited from infact::VarMapBase
void	SetMembers (const string &name, Environment *env, bool is_primitive)
	To allow proper implementation of Copy in VarMapBase implementation, since we don't get copying of base class' members for free. More...

Additional Inherited Members
Protected Attributes inherited from infact::VarMapBase
string	name_
	The type name of this VarMap. More...

Environment *	env_
	The Environment that holds this VarMap instance. More...

bool	is_primitive_
	Whether this VarMap instance holds variables of primitive type or vector of primitives. More...

Detailed Description

template<typename T, typename Derived>
class infact::VarMapImpl< T, Derived >

A partial implementation of the VarMapBase interface that is common to both VarMap<T> and the VarMap<vector<T> > partial specialization.

In a delightful twist, this partial implementation of VarMapBase uses the curiously recurring template pattern (CRTP) in order to implement the VarMapBase::Copy method, as well as the protected method ReadAndSetFromExistingVariable.

Template Parameters

T	the type of variables stored in this (partial implementation of a) variable map
Derived	the type of the class using this as its base class (a.k.a. CRTP, or the "curiously recurring template pattern")

Definition at line 266 of file environment.h.