expression_address_local Class Reference

#include <local.h>

Inheritance diagram for expression_address_local:

List of all members.

Public Member Functions
virtual	~expression_address_local ()
	expression_address_local (const location &locn, unsigned offset, const type::pointer &type, const symbol *hint, translator_compile *cntxt)
Protected Member Functions
void	traversal (int pprec)
expression::pointer	fast_load () const
expression::pointer	fast_store (const expression::pointer &rhs) const
bool	is_constant () const
expression::pointer	advance_by_words (long nwords, const type::pointer &new_type, const symbol *new_hint) const
const symbol *	get_symbol_hint () const
Private Member Functions
	expression_address_local ()
	expression_address_local (const expression_address_local &)
expression_address_local &	operator= (const expression_address_local &)
Private Attributes
translator_compile &	code
const symbol *	hint

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Detailed Description

The expression_address_local class is used to represent a local (current stack frame) address constant.

Definition at line 32 of file local.h.

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Constructor & Destructor Documentation

virtual expression_address_local::~expression_address_local

(

)

[virtual]

The destructor.

expression_address_local::expression_address_local	(	const location &	locn,
		unsigned	offset,
		const type::pointer &	type,
		const symbol *	hint,
		translator_compile *	cntxt
	)

The constructor.

Parameters:

	locn	The source file location of this expression
	offset	The word offset into the top-most stack frame
	type	The type of variable this expression represents
	hint	The symbol most recently related to this expression, or NULL for no hint.
	cntxt	The translation context

expression_address_local::expression_address_local

(

)

[private]

The default constructor. Do not use.

expression_address_local::expression_address_local

(

const expression_address_local &

)

[private]

The copy constructor. Do not use.

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Member Function Documentation

void expression_address_local::traversal

(

int

pprec

)

[protected, virtual]

The traversal method may be used to traverse each of the declaractions in the list.

Parameters:

pprec

The precedence of the parent expression node.

Implements expression.

expression::pointer expression_address_local::fast_load

(

)

const [protected, virtual]

The fast_load method is used by the expression_load_indirect::optimize method to produce smaller code, if possible.

Note:

It is tempting to use a default implementation which returns self(), however this prevents the compiler from telling us we missed something.

Implements expression_address.

expression::pointer expression_address_local::fast_store

(

const expression::pointer &

rhs

)

const [protected, virtual]

The fast_store method is used by the expression_store_indirect::optimize method to produce smaller code, if possible.

Parameters:

rhs

The value to be stored.

Note:

It is tempting to use a default implementation which returns self(), however this prevents the compiler from telling us we missed something.

Implements expression_address.

bool expression_address_local::is_constant

(

)

const [protected, virtual]

The is_constant method may be used to determine whether this expression node is a constant, or this tree would evaluate to a constant.

The default implementation is conservative, and always returns false.

Returns:

bool; true if constant, false if not.

Reimplemented from expression.

expression::pointer expression_address_local::advance_by_words	(	long	nwords,
		const type::pointer &	new_type,
		const symbol *	new_hint
	)			const [protected, virtual]

The advance_by_words method is used to create a new pointer constant from an old one, with the offset advanced by the given number of words.

Parameters:

	nwords	The number of words to advance.
	new_type	the new type of pointer, because usually the original is a record pointer, and the new one is a member pointer (i.e. not the same type).
	new_hint	New hit to attach to the new pointer node

Returns:

a new expression node.

Implements expression_address.

const symbol* expression_address_local::get_symbol_hint

(

)

const [protected, virtual]

The get_symbol_hint method is used to get the symbol associated with the expression.

Returns:

pointer to a symbol, or NULL if there is no hint present

Reimplemented from expression.

expression_address_local& expression_address_local::operator=

(

const expression_address_local &

)

[private]

The assignment operator. Do not use.

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Member Data Documentation

translator_compile& expression_address_local::code [private]

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

Definition at line 86 of file local.h.

const symbol* expression_address_local::hint [private]

The hint instance variable is used to remember the symbol most recently related to this expression, or NULL for no hint.

Definition at line 92 of file local.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/address/local.h

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