javafe.ast
Class LiteralExpr

java.lang.Object
  javafe.ast.ASTNode
      javafe.ast.VarInit
          javafe.ast.Expr
              javafe.ast.LiteralExpr

All Implemented Interfaces:

java.lang.Cloneable

public class LiteralExpr

extends Expr

Represents a Literal.

The tag of a LiteralExpr should be one of the *LIT (eg INTLIT) constants defined in TagConstants. The value fields is a Character/String/Long/Double/Boolean/null, as appropriate.

Field Summary

int	loc
int	tag
java.lang.Object	value

Fields inherited from class javafe.ast.ASTNode

bogusField, dotCounter, dotId

Constructor Summary

protected

LiteralExpr(int tag, java.lang.Object value, int loc)

Method Summary

void	accept(Visitor v) Accept a visit from v.
java.lang.Object	accept(VisitorArgResult v, java.lang.Object o)
static LiteralExpr	cast(LiteralExpr lit, int t)
void	check()
java.lang.Object	childAt(int index) Return the first-but-ith child of a node.
int	childCount() Return the number of children a node has.
int	getEndLoc()
java.lang.String	getInfoNewTree()
int	getStartLoc()
int	getTag() Return the tag of a node.
static boolean	isValidTag(int tag)
static boolean	isValidValue(int tag, java.lang.Object value)
static LiteralExpr	make(int tag, java.lang.Object value, int loc)
static LiteralExpr	makeNonSyntax(int tag, java.lang.Object value)
private void	postCheck()
java.lang.String	toString() Return a string representation of this.

Methods inherited from class javafe.ast.ASTNode

clone, clone, getDecorations, isInternal, setDecorations

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

tag

public int tag

value

public java.lang.Object value

loc

public final int loc

Constructor Detail

LiteralExpr

protected LiteralExpr(int tag,
                      java.lang.Object value,
                      int loc)

Method Detail

getTag

public final int getTag()

Description copied from class: ASTNode

Return the tag of a node.

Specified by:

getTag in class ASTNode

postCheck

private void postCheck()

getStartLoc

public int getStartLoc()

Specified by:

getStartLoc in class ASTNode

getEndLoc

public int getEndLoc()

Overrides:

getEndLoc in class ASTNode

cast

public static LiteralExpr cast(LiteralExpr lit,
                               int t)

isValidTag

public static boolean isValidTag(int tag)

isValidValue

public static boolean isValidValue(int tag,
                                   java.lang.Object value)

make

public static LiteralExpr make(int tag,
                               java.lang.Object value,
                               int loc)

makeNonSyntax

public static LiteralExpr makeNonSyntax(int tag,
                                        java.lang.Object value)

getInfoNewTree

public java.lang.String getInfoNewTree()

childCount

public final int childCount()

Description copied from class: ASTNode

Return the number of children a node has.

Specified by:

childCount in class ASTNode

childAt

public final java.lang.Object childAt(int index)

Description copied from class: ASTNode

Return the first-but-ith child of a node.

Specified by:

childAt in class ASTNode

toString

public final java.lang.String toString()

Description copied from class: ASTNode

Return a string representation of this. Meant for debugging use only, not for presentation.

Specified by:

toString in class ASTNode

accept

public final void accept(Visitor v)

Description copied from class: ASTNode

Accept a visit from v. This method simply calls the method of v corresponding to the allocated type of this, passing this as the argument. See the design patterns book.

Specified by:

accept in class ASTNode

accept

public final java.lang.Object accept(VisitorArgResult v,
                                     java.lang.Object o)

Specified by:

accept in class ASTNode

check

public void check()

Overrides:

check in class Expr