AExpr Class Reference

Array expressions. More...

#include <act_array.h>

Public Types
enum	type { CONCAT , COMMA , EXPR }

Public Member Functions
	AExpr (ActId *e)
	AExpr (Expr *e)
	AExpr (type t, AExpr *l, AExpr *r)
	~AExpr ()
int	isEqual (AExpr *a)
AExpr *	GetLeft ()
	access left component
AExpr *	GetRight ()
	access right component
void	SetRight (AExpr *a)
	assign right component to a
void	Print (FILE *fp)
	print array expression
void	sPrint (char *buf, int sz)
	print array expression to string
AExpr *	Clone ()
	deep copy of array expression
InstType *	getInstType (Scope *s, int *islocal, int expanded=0)
AExpr *	Expand (ActNamespace *, Scope *, int is_lval=0)
ActId *	toid ()
int	isBase ()
AExprstep *	stepper ()
InstType *	isType ()
int	isArrayExpr ()

Private Attributes
enum type	t
	simple/compound expression type
AExpr *	l
AExpr *	r

Friends
class	AExprstep

Detailed Description

Array expressions.

This is used to hold the array expression syntax for ACT.

Member Enumeration Documentation

type

enum AExpr::type

An array expression is either a basic expression, a concatenation, or a comma

Enumerator
CONCAT
COMMA
EXPR

Constructor & Destructor Documentation

AExpr() [1/3]

AExpr::AExpr

(

ActId *

e

)

return an array expression corresponding to the ID

AExpr() [2/3]

AExpr::AExpr

(

Expr *

e

)

return an array expression corresponding to an Expr

AExpr() [3/3]

AExpr::AExpr	(	type	t,
		AExpr *	l,
		AExpr *	r
	)

combine two array expressions into a new one based on the specified type

~AExpr()

AExpr::~AExpr

(

)

Member Function Documentation

Clone()

AExpr * AExpr::Clone

(

)

deep copy of array expression

Expand()

AExpr * AExpr::Expand	(	ActNamespace *	,
		Scope *	,
		int	is_lval = 0
	)

expand out all parameters

getInstType()

InstType * AExpr::getInstType	(	Scope *	s,
		int *	islocal,
		int	expanded = 0
	)

Return an InstType corresponding to this array expression

Parameters

s	is the scope
islocal	if non-NULL, used to return 1 if this array expression only has local ID references, 0 otherwise
expanded	is used if the instance type should expect expanded types. In this case the correct array dimensions are computed.

Returns

the newly allocated InstType corresponding to the type of the array expression.

GetLeft()

AExpr * AExpr::GetLeft ( )

inline

access left component

GetRight()

AExpr * AExpr::GetRight ( )

inline

access right component

isArrayExpr()

int AExpr::isArrayExpr

(

)

return 1 if this is an ID that evaluated to an array expression (E_ARRAY), 0 otherwise

isBase()

int AExpr::isBase ( )

inline

Returns

1 if this is the "base case" for an array expression (i.e. a simple expression), 0 otherwise

isEqual()

int AExpr::isEqual

(

AExpr *

a

)

Check if two array expressions are equal

isType()

InstType * AExpr::isType

(

)

return NULL if this is not a type (E_TYPE), the actual type otherwise.

Print()

void AExpr::Print

(

FILE *

fp

)

print array expression

SetRight()

void AExpr::SetRight ( AExpr *  a )

inline

assign right component to a

sPrint()

void AExpr::sPrint	(	char *	buf,
		int	sz
	)

print array expression to string

stepper()

AExprstep * AExpr::stepper

(

)

Array expressions can be quite complex. This returns an array expression stepper (similar to Arraystep) that walks through the components of the array expression element by element.

Returns

the array expression stepper that can walk through this array expression.

toid()

ActId * AExpr::toid

(

)

For this to work, the array expression must correspond to a single ActId only.

Returns

the ActId corresponding to this array expression

Friends And Related Function Documentation

AExprstep

friend class AExprstep

friend

Member Data Documentation

l

AExpr* AExpr::l

private

an element of the expression for compound array expressions. l is also used as an Expr * for the base case

r

AExpr * AExpr::r

private

an elements of the expression for compound array expressions

t

enum type AExpr::t

private

simple/compound expression type

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

• act/act_array.h