AExprstep Class Reference

Class for stepping through an array expression element-by-element. More...

#include <act_array.h>

Public Member Functions
	AExprstep (AExpr *a)
	construct an array expression stepper
	~AExprstep ()
void	step ()
	advance by one element
int	isend ()
	returns 1 on an end of array, 0 otherwise
unsigned long	getPInt ()
	get the current pint value
long	getPInts ()
	get the current signed pint(not used)
double	getPReal ()
	get the current preal value
int	getPBool ()
	get the current pbool value
InstType *	getPType ()
	get the current ptype value
void	getID (ActId **id, int *idx, int *typesize)
void	getsimpleID (ActId **id, int *idx, int *typesize)
int	isSimpleID ()

Private Attributes
list_t *	stack
	stack of AExprs to be processed
AExpr *	cur
	current element being processed
union {
Expr *   const_expr
	current constant expression, or: More...
struct {
ActId *   act_id
	identifier More...
Arraystep *   a
int   issimple:1
	1 if this is a raw id More...
}   id
struct {
ValueIdx *   vx
	base value idx More...
Scope *   s
	scope in which to evaluate More...
Arraystep *   a
	if it is an array or subrange More...
}   vx
}	u
unsigned int	type:2

Detailed Description

Class for stepping through an array expression element-by-element.

The value accessor method depends on the type of the array expression. Only one of them will work correctly, and it is up to the user to call the correct one.

Constructor & Destructor Documentation

AExprstep()

AExprstep::AExprstep

(

AExpr *

a

)

construct an array expression stepper

~AExprstep()

AExprstep::~AExprstep

(

)

Member Function Documentation

getID()

void AExprstep::getID	(	ActId **	id,
		int *	idx,
		int *	typesize
	)

get the current identifier. If the identifier is an array element, then *idx is used to return the linear offset within the array, and *typesize is used to return the size of the current range

Parameters

id	used to return the ID
idx	used to return the index
typesize	used to return the size of the range

getPBool()

int AExprstep::getPBool

(

)

get the current pbool value

getPInt()

unsigned long AExprstep::getPInt

(

)

get the current pint value

getPInts()

long AExprstep::getPInts

(

)

get the current signed pint(not used)

getPReal()

double AExprstep::getPReal

(

)

get the current preal value

getPType()

InstType * AExprstep::getPType

(

)

get the current ptype value

getsimpleID()

void AExprstep::getsimpleID	(	ActId **	id,
		int *	idx,
		int *	typesize
	)

This permits a dense ID to be returned as a single simple ID. Otherwise it is similar to getID(). This is used to support array to array direct connections.

isend()

int AExprstep::isend

(

)

returns 1 on an end of array, 0 otherwise

isSimpleID()

int AExprstep::isSimpleID

(

)

Returns

1 if this is a simple ID, 0 otherwise.

step()

void AExprstep::step

(

)

advance by one element

Member Data Documentation

a

Arraystep* AExprstep::a

if it is an array or subrange

array deref within the id, in case it is an array

act_id

ActId* AExprstep::act_id

identifier

const_expr

Expr* AExprstep::const_expr

current constant expression, or:

cur

AExpr* AExprstep::cur

private

current element being processed

struct { ... } AExprstep::id

issimple

int AExprstep::issimple

1 if this is a raw id

s

Scope* AExprstep::s

scope in which to evaluate

stack

list_t* AExprstep::stack

private

stack of AExprs to be processed

type

unsigned int AExprstep::type

private

0 = none, 1 = const, 2 = id, 3 = value array

union { ... } AExprstep::u

vx [1/2]

ValueIdx* AExprstep::vx

base value idx

[2/2]

struct { ... } AExprstep::vx

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

• act/act_array.h