expression_address_global Class Reference

#include <global.h>

Inheritance diagram for expression_address_global:

List of all members.

Public Member Functions
virtual	~expression_address_global ()
	expression_address_global (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_global ()
	expression_address_global (const expression_address_global &)
expression_address_global &	operator= (const expression_address_global &)
Private Attributes
translator_compile &	code
const symbol *	hint

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Detailed Description

The expression_address_global class is used to represent a global (program's stack frame) address constant.

Definition at line 32 of file global.h.

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Constructor & Destructor Documentation

virtual expression_address_global::~expression_address_global

(

)

[virtual]

The destructor.

expression_address_global::expression_address_global	(	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 global 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_global::expression_address_global

(

)

[private]

The default constructor.

expression_address_global::expression_address_global

(

const expression_address_global &

)

[private]

The copy constructor.

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Member Function Documentation

void expression_address_global::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_global::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_global::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_global::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_global::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_global::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_global& expression_address_global::operator=

(

const expression_address_global &

)

[private]

The assignment operator.

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Member Data Documentation

translator_compile& expression_address_global::code [private]

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

Definition at line 86 of file global.h.

const symbol* expression_address_global::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 global.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/global.h

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