cetus.hir

Class NameID

java.lang.Object

cetus.hir.Expression

cetus.hir.IDExpression

cetus.hir.NameID

All Implemented Interfaces:

Printable, Traversable, java.lang.Cloneable, java.lang.Comparable<Expression>

public class NameID
extends IDExpression

NameID is introduced to separate the uses of Identifier for better IR consistency. Identifier is used only for variables which are part of expression tree, whereas NameID is for other types of traversable objects that do not need to refer to the declared variables. One suggestion for pass writers is that avoid using Identifier if the object is not going to have any access to the declared symbol. This means an Identifier object is created only through the constructor Identifier.Identifier(Symbol). Following example explicates the * uses of these two types of IDExpression.

   ...
   int a = b+1;  // a is a NameID object, b is an Identifier object.
   a += ...      // a is an Identifier object.
   ...
 

Constructor Summary

Constructors

Constructor and Description
NameID(java.lang.String name) Constructs a new named ID with the given string name.

Method Summary

Methods

Modifier and Type	Method and Description
NameID	clone() Returns a clone of this named ID.
static void	defaultPrint(NameID i, java.io.PrintWriter o) Prints the name of this ID to the given writer.
boolean	equals(java.lang.Object o) Checks if the given object o is equal to this named ID.
java.lang.String	getName() Returns the string name of this named ID.
int	hashCode() Returns the hash code of this named ID.
void	setName(java.lang.String new_name) Sets the name of this ID with the given new name.
java.lang.String	toString() Returns a string representation of this named ID.

Methods inherited from class cetus.hir.IDExpression

findDeclaration, setGlobal, setTypename

Methods inherited from class cetus.hir.Expression

compareTo, findExpression, getChildren, getParent, getStatement, needsParens, print, printSelf, removeChild, setChild, setParens, setParent, setPrintMethod, swapWith, verify

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

NameID

public NameID(java.lang.String name)

Constructs a new named ID with the given string name.

Parameters:

name - the name of this named ID.

Method Detail

getName

public java.lang.String getName()

Returns the string name of this named ID.

Overrides:

getName in class IDExpression

Returns:

the string name.

setName

public void setName(java.lang.String new_name)

Sets the name of this ID with the given new name.

Parameters:

new_name - the new string name for this named ID.

defaultPrint

public static void defaultPrint(NameID i,
                java.io.PrintWriter o)

Prints the name of this ID to the given writer.

Parameters:

i - the named ID to be printed.

o - the print writer.

clone

public NameID clone()

Returns a clone of this named ID.

Overrides:

clone in class IDExpression

Returns:

the cloned ID.

toString

public java.lang.String toString()

Returns a string representation of this named ID.

Overrides:

toString in class Expression

Returns:

the string representation.

equals

public boolean equals(java.lang.Object o)

Checks if the given object o is equal to this named ID. For an internal reason, it is possible for a NameID object to be equal to an Identifier object; they have been implemented throuhg Identifier before.

Overrides:

equals in class Expression

Parameters:

o - the object to be checked for equality.

Returns:

true if o.hashCode() == this.hashCode().

hashCode

public int hashCode()

Returns the hash code of this named ID.

Overrides:

hashCode in class Expression

Returns:

the string name's hash code.