expression_le_pretty Class Reference

#include <pretty.h>

Inheritance diagram for expression_le_pretty:

List of all members.

Public Member Functions
virtual	~expression_le_pretty ()
	expression_le_pretty (const expression::pointer &lhs, const expression::pointer &rhs, translator_pretty *cntxt)
Protected Member Functions
void	pre_order_traversal (int pprec)
void	logical_traversal (int pprec, label::pointer &true_branch, label::pointer &false_branch, bool fall_through_preference)
void	infix_order_traversal (int pprec)
void	post_order_traversal (int pprec)
expression::pointer	optimize () const
Private Member Functions
	expression_le_pretty ()
	expression_le_pretty (const expression_le_pretty &)
expression_le_pretty &	operator= (const expression_le_pretty &)
Private Attributes
translator_pretty &	pretty

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Detailed Description

The expression_le_pretty class is used to represent the pretty printing of an le expression node.

Definition at line 32 of file pretty.h.

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Constructor & Destructor Documentation

virtual expression_le_pretty::~expression_le_pretty

(

)

[virtual]

The destructor.

expression_le_pretty::expression_le_pretty	(	const expression::pointer &	lhs,
		const expression::pointer &	rhs,
		translator_pretty *	cntxt
	)

The constructor.

expression_le_pretty::expression_le_pretty

(

)

[private]

The default constructor. Do not use.

expression_le_pretty::expression_le_pretty

(

const expression_le_pretty &

)

[private]

The copy constructor. Do not use.

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Member Function Documentation

void expression_le_pretty::pre_order_traversal

(

int

pprec

)

[protected, virtual]

The pre_order_traversal method is used to perform actions required before the left hand expression is traversed.

Parameters:

pprec

The parent expressions precedence. Not much use to code generators, but essential for pretty printers to get the parentheses correct.

Reimplemented from expression_le.

void expression_le_pretty::logical_traversal	(	int	pprec,
		label::pointer &	true_branch,
		label::pointer &	false_branch,
		bool	fall_through_preference
	)			[protected]

void expression_le_pretty::infix_order_traversal

(

int

pprec

)

[protected, virtual]

The infix_order_traversal method is used to perform actions required between the left and right hand expression traversals.

Parameters:

pprec

The parent expressions precedence.

Reimplemented from expression_le.

void expression_le_pretty::post_order_traversal

(

int

pprec

)

[protected, virtual]

The post_order_traversal method is used to perform actions required after the right hand expression has been traversed.

Parameters:

pprec

The parent expressions precedence. Not much use to code generators, but essential for pretty printers to get the parentheses correct.

Reimplemented from expression_le.

expression::pointer expression_le_pretty::optimize

(

)

const [protected, virtual]

The optimize method may be used to evaluate constant expressions, or substitute more efficient expressions.

This is intended to be called by the translator:: expression_statement method, or similar, where the expression is in its final form, and will get no deeper. In other words, when all available information has been provided.

There is no default implementation, even though most optimize implementations return self(), because this gives the compiler no opportunity to remind the authors of new classes that they have forgotten something.

Returns:

If the expression tree is not constant, or it is already as reduced as it can get, it returns itself. Otherwise, it returns a new expression node.

Implements expression.

expression_le_pretty& expression_le_pretty::operator=

(

const expression_le_pretty &

)

[private]

The assignment operator. Do not use.

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Member Data Documentation

translator_pretty& expression_le_pretty::pretty [private]

The pretty instance variable is used to remember where to send our pretty printed text.

Definition at line 69 of file pretty.h.

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

• /home/archives/ucsd-psystem-xc/branch.0/branch.0/delta27403.167/ucsdpsys_pretty/expression/le/pretty.h

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