Polaris: StringExpr Class Reference

StringExpr Class Reference

An abstract expression with a string argument. More...

#include <StringExpr.h>

Inheritance diagram for StringExpr:

[legend]List of all members.


Public Member Functions
	StringExpr (OP_TYPE op, const Type &ty, const char *data_string)
	StringExpr (const StringExpr &e)
virtual	~StringExpr ()
	StringExpr code:.
StringExpr &	operator= (const StringExpr &)
virtual const char *	data_ref () const
virtual void	data (const char *)
	Access the string contained within myself.
virtual const String &	str_data () const
virtual String &	str_data ()
	Like data_ref(), except that a String object is returned.
virtual Expression *	clone () const =0
	Return a copy of myself.
virtual int	structures_OK () const =0
	Return 1 if my structures are in a valid state.
virtual void	print_debug (ostream &o, Boolean debug) const
	debug indicates whether it should contain extra fields
virtual const ExprSignature &	update_signature ()
virtual int	node_compare (const Expression &ex) const
	See Expression.h.
virtual int	exchange_expr (VDL &vdl)
	Create a node in the "expression" member and return the index.
Protected Member Functions
	StringExpr (OP_TYPE op, const Type &ty)
virtual Boolean	_args_are_equal (Expression &, Boolean consider_side_effects)
Protected Attributes
String	_data
Friends
class	ExprTable

Detailed Description

An abstract expression with a string argument.

Polaris Expression

See also:

Expression/StringExpr.h

Expression/Expression.cc

Description

A StringExpr is an expression whose data is represented as a string. StringExpr was designed to be subclassed from, and cannot be instantiated. If one wishes to create a string expression, use StringConstExpr rather than StringExpr.

Definition at line 29 of file StringExpr.h.

Constructor & Destructor Documentation

StringExpr::StringExpr ( OP_TYPE op,

const Type & ty,

const char * data_string

) [inline]

Definition at line 79 of file StringExpr.h.
References _data.

StringExpr::StringExpr ( const StringExpr & e ) [inline]

Definition at line 86 of file StringExpr.h.
References _data, and e.

StringExpr::~StringExpr ( ) [virtual]

StringExpr code:.
... nothing to do
Definition at line 6672 of file Expression.cc.

StringExpr::StringExpr ( OP_TYPE op,

const Type & ty

) [inline, protected]

< nothing to do
Definition at line 72 of file StringExpr.h.

Member Function Documentation

StringExpr & StringExpr::operator= ( const StringExpr & )

Definition at line 6678 of file Expression.cc.
References _data, Expression::data_ref(), and e.
Referenced by StringConstExpr::operator=(), StmtLabelExpr::operator=(), RealConstExpr::operator=(), KeyExpr::operator=(), LogicalConstExpr::operator=(), and HollerithConstExpr::operator=().

const char * StringExpr::data_ref ( ) const [virtual]

Reimplemented from Expression.
Definition at line 6699 of file Expression.cc.
References _data.
Referenced by node_compare(), and update_signature().

void StringExpr::data ( const char * ) [virtual]

Access the string contained within myself.

Reimplemented from Expression.
Definition at line 6705 of file Expression.cc.
References _data.

const String & StringExpr::str_data ( ) const [virtual]

Reimplemented from Expression.
Definition at line 6687 of file Expression.cc.
References _data.

String & StringExpr::str_data ( ) [virtual]

Like data_ref(), except that a String object is returned.

Reimplemented from Expression.
Definition at line 6693 of file Expression.cc.
References _data.

virtual Expression* StringExpr::clone ( ) const [pure virtual]

Return a copy of myself.

Implements Expression.
Implemented in HollerithConstExpr, KeyExpr, LogicalConstExpr, RealConstExpr, StmtLabelExpr, and StringConstExpr.

virtual int StringExpr::structures_OK ( ) const [pure virtual]

Return 1 if my structures are in a valid state.

Implements Expression.
Implemented in HollerithConstExpr, KeyExpr, LogicalConstExpr, RealConstExpr, StmtLabelExpr, and StringConstExpr.

virtual void StringExpr::print_debug ( ostream & o,

Boolean debug

) const [virtual]

debug indicates whether it should contain extra fields

Implements Expression.
Reimplemented in StmtLabelExpr.

const ExprSignature & StringExpr::update_signature ( ) [virtual]

... _signature_live().merge( (int) type().data_type() ); ... _signature_live().merge( type().size() );
Reimplemented from Expression.
Definition at line 7266 of file Expression.cc.
References Expression::_signature_live(), ExprSignature::clear(), data_ref(), ExprSignature::merge(), Expression::op(), and Expression::signature().

int StringExpr::node_compare ( const Expression & ex ) const [virtual]

See Expression.h.

Reimplemented from Expression.
Definition at line 7342 of file Expression.cc.
References data_ref().

int StringExpr::exchange_expr ( VDL & vdl ) [virtual]

Create a node in the "expression" member and return the index.

Reimplemented from Expression.
Reimplemented in HollerithConstExpr, KeyExpr, LogicalConstExpr, RealConstExpr, StmtLabelExpr, and StringConstExpr.
Definition at line 6717 of file Expression.cc.
References Expression::exchange_expr(), BinRep::find_ref(), Set< T >::ins(), List< T >::ins_last(), and BinRep::to_tuple().

virtual Boolean StringExpr::_args_are_equal ( Expression & ,

Boolean consider_side_effects

) [protected, virtual]

Reimplemented from Expression.

Friends And Related Function Documentation

friend class ExprTable [friend]

Reimplemented in KeyExpr, LogicalConstExpr, RealConstExpr, and StringConstExpr.
Definition at line 30 of file StringExpr.h.

Member Data Documentation

String StringExpr::_data [protected]

Definition at line 60 of file StringExpr.h.
Referenced by data(), data_ref(), operator=(), str_data(), and StringExpr().

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

Fri Mar 25 23:08:25 2005

StringExpr Class Reference

Public Member Functions

Protected Member Functions