CNode< _ValueT > Class Template Reference

Generic node, base class for all nodes. More...

Inheritance diagram for CNode< _ValueT >:

List of all members.

Public Types
enum	NODE_TYPE {   BASIC, VARIABLE, ONEPARAM, TWOPARAM,   NPARAM }
	Node types. More...
Public Member Functions
virtual	~CNode ()
	Virtual destructor.
virtual _ValueT	GetValue ()=0
	Return the value that this node evaluates to.
virtual BOOL	IsUsed (void *Addr)=0
	Returns true if the variable or function whose address is given as a parameter used in this expression tree.
virtual void	Optimize ()=0
	Optimize evaluates constant values at compile time.
virtual NODE_TYPE	GetType ()=0
	Home made RTTI replacement.

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Detailed Description

template<typename _ValueT>
class CNode< _ValueT >

Generic node, base class for all nodes.

Expression given by the user as a string is parsed and then is represented by a tree of CNode objects.

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Member Enumeration Documentation

template<typename _ValueT >

enum CNode::NODE_TYPE

Node types.

Not to require RTTI.

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Member Function Documentation

template<typename _ValueT >

virtual _ValueT CNode< _ValueT >::GetValue

(

)

[pure virtual]

Return the value that this node evaluates to.

This method will typically trigger a cascade of GetValue() calls in the expression tree that it represents and it will return the resulting value.

Implemented in CBasicNode< _ValueT >, COneParamNode< _CharT, _ValueT >, CTwoParamNode< _CharT, _ValueT >, CNParamNode< _CharT, _ValueT >, CVarNode< _ValueT >, and CUnknownVarNode< _CharT, _ValueT >.

template<typename _ValueT >

virtual BOOL CNode< _ValueT >::IsUsed

(

void *

Addr

)

[pure virtual]

Returns true if the variable or function whose address is given as a parameter used in this expression tree.

Returns false if it is not found.

Implemented in CBasicNode< _ValueT >, COneParamNode< _CharT, _ValueT >, CTwoParamNode< _CharT, _ValueT >, CNParamNode< _CharT, _ValueT >, CVarNode< _ValueT >, and CUnknownVarNode< _CharT, _ValueT >.