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package com.sun.org.apache.bcel.internal.generic;
import com.sun.org.apache.bcel.internal.Const;
Returnaddress, the type JSR or JSR_W instructions push upon the stack.
see vmspec2 3.3.3
Version: $Id: ReturnaddressType.java 1749603 2016-06-21 20:50:19Z ggregory $
/**
* Returnaddress, the type JSR or JSR_W instructions push upon the stack.
*
* see vmspec2 3.3.3
* @version $Id: ReturnaddressType.java 1749603 2016-06-21 20:50:19Z ggregory $
*/
public class ReturnaddressType extends Type {
public static final ReturnaddressType NO_TARGET = new ReturnaddressType();
private InstructionHandle returnTarget;
A Returnaddress [that doesn't know where to return to].
/**
* A Returnaddress [that doesn't know where to return to].
*/
private ReturnaddressType() {
super(Const.T_ADDRESS, "<return address>");
}
Creates a ReturnaddressType object with a target.
/**
* Creates a ReturnaddressType object with a target.
*/
public ReturnaddressType(final InstructionHandle returnTarget) {
super(Const.T_ADDRESS, "<return address targeting " + returnTarget + ">");
this.returnTarget = returnTarget;
}
Returns: a hash code value for the object.
/** @return a hash code value for the object.
*/
@Override
public int hashCode() {
if (returnTarget == null) {
return 0;
}
return returnTarget.hashCode();
}
Returns if the two Returnaddresses refer to the same target.
/**
* Returns if the two Returnaddresses refer to the same target.
*/
@Override
public boolean equals( final Object rat ) {
if (!(rat instanceof ReturnaddressType)) {
return false;
}
final ReturnaddressType that = (ReturnaddressType) rat;
if (this.returnTarget == null || that.returnTarget == null) {
return that.returnTarget == this.returnTarget;
}
return that.returnTarget.equals(this.returnTarget);
}
Returns: the target of this ReturnaddressType
/**
* @return the target of this ReturnaddressType
*/
public InstructionHandle getTarget() {
return returnTarget;
}
}