expression_le_string Class Reference

#include <string.h>

Inheritance diagram for expression_le_string:

List of all members.

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

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Detailed Description

The expression_le_string class is used to represent code generation for less than or equal to expressions.

Definition at line 32 of file string.h.

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Constructor & Destructor Documentation

virtual expression_le_string::~expression_le_string

(

)

[virtual]

The destructor.

expression_le_string::expression_le_string	(	const expression::pointer &	lhs,
		const expression::pointer &	rhs,
		translator_compile *	cntxt
	)

The constructor.

expression_le_string::expression_le_string

(

)

[private]

The default constructor. Do not use.

expression_le_string::expression_le_string

(

const expression_le_string &

)

[private]

The copy constructor. Do not use.

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Member Function Documentation

void expression_le_string::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.

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

expression::pointer expression_le_string::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_string& expression_le_string::operator=

(

const expression_le_string &

)

[private]

The assignment operator. Do not use.

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Member Data Documentation

translator_compile& expression_le_string::code [private]

The code instance variable is used to remember where to send our generated code.

Definition at line 63 of file string.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_compile/expression/le/string.h

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