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value_assign_base Class Reference

Base class for rule results. More...

Inheritance diagram for value_assign_base:

[legend]List of all members.

Public Member Functions
virtual void	do_assign (symbol_table_interface *)=0
virtual value_assign_base *	get_undo ()=0
const accessor &	target () const
accessor &	target ()
	value_assign_base (const accessor &target)
virtual bool	will_modify (symbol_table_interface *) const =0
virtual	~value_assign_base ()
Protected Attributes
accessor	m_target

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Detailed Description

Rules return pointer to a value_assign object. The value_assign object contains the result of the rule and has code to assign this result to the rule-target.

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Constructor & Destructor Documentation

value_assign_base (  const accessor &  target  )

virtual ~value_assign_base (   )  [virtual]

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Member Function Documentation

virtual void do_assign (  symbol_table_interface *   )  [pure virtual]

Implemented in value_assign_accessor, value_assign_string, and value_assign_expr.

virtual value_assign_base* get_undo (   )  [pure virtual]

Implemented in value_assign_accessor, value_assign_string, and value_assign_expr.

const accessor& target (   )  const

accessor& target (   )

virtual bool will_modify (  symbol_table_interface *   )  const [pure virtual]

Implemented in value_assign_accessor, value_assign_string, and value_assign_expr.

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Member Data Documentation

accessor m_target [protected]

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Copyright 2004, Hajo Kirchhoff, Lit Window Productions