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Clazz
Class jq_CompiledCode  view jq_CompiledCode download jq_CompiledCode.java

java.lang.Object
  extended byClazz.jq_CompiledCode
All Implemented Interfaces:
java.lang.Comparable

public class jq_CompiledCode
extends java.lang.Object
implements java.lang.Comparable

Version:
$Id: jq_CompiledCode.java,v 1.22 2003/05/12 10:05:09 joewhaley Exp $

Nested Class Summary
(package private) static interface jq_CompiledCode.Delegate
           
 
Field Summary
private static jq_CompiledCode.Delegate _delegate
           
static jq_InstanceField _entrypoint
           
protected  jq_BytecodeMap bcm
           
protected  java.util.List code_reloc
           
protected  java.util.List data_reloc
           
protected  java.lang.Object ed
           
protected  Memory.CodeAddress entrypoint
           
protected  jq_TryCatch[] handlers
           
protected  int length
           
protected  jq_Method method
           
protected  int stackframesize
           
protected  Memory.CodeAddress start
           
static boolean TRACE
           
static boolean TRACE_REDIRECT
           
 
Constructor Summary
jq_CompiledCode(jq_Method method, Memory.CodeAddress start, int length, Memory.CodeAddress entrypoint, jq_TryCatch[] handlers, jq_BytecodeMap bcm, java.lang.Object ed, int stackframesize, java.util.List code_reloc, java.util.List data_reloc)
           
 
Method Summary
private static jq_CompiledCode.Delegate attemptDelegate(java.lang.String s)
           
 int compareTo(jq_CompiledCode that)
           
 int compareTo(java.lang.Object o)
          Compares this object with another, and returns a numerical result based on the comparison.
 boolean contains(Memory.CodeAddress address)
           
 void deliverException(jq_TryCatch tc, Memory.StackAddress fp, java.lang.Throwable x)
           
 boolean equals(java.lang.Object o)
          Determine whether this Object is semantically equal to another Object.
 jq_TryCatch findCatchBlock(Memory.CodeAddress ip, jq_Class extype)
           
 int getBytecodeIndex(Memory.CodeAddress ip)
           
 Memory.CodeAddress getEntrypoint()
           
 int getLength()
           
 jq_Method getMethod()
           
 int getStackFrameSize()
           
 Memory.CodeAddress getStart()
           
 java.lang.Object getThisPointer(Memory.CodeAddress ip, Memory.StackAddress fp)
           
 int hashCode()
          NOTE that this violates the contract of hashCode when comparing against InstructionPointer objects!
 void patchDirectBindCalls()
           
 void patchDirectBindCalls(jq_Method method, jq_CompiledCode cc)
           
 void redirect(jq_CompiledCode that)
          Rewrite the entrypoint to branch to the given compiled code.
 java.lang.String toString()
          Convert this Object to a human-readable String.
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

TRACE

public static boolean TRACE

TRACE_REDIRECT

public static boolean TRACE_REDIRECT

entrypoint

protected final Memory.CodeAddress entrypoint

method

protected final jq_Method method

start

protected final Memory.CodeAddress start

length

protected final int length

handlers

protected final jq_TryCatch[] handlers

bcm

protected final jq_BytecodeMap bcm

ed

protected final java.lang.Object ed

stackframesize

protected final int stackframesize

code_reloc

protected final java.util.List code_reloc

data_reloc

protected final java.util.List data_reloc

_delegate

private static jq_CompiledCode.Delegate _delegate

_entrypoint

public static final jq_InstanceField _entrypoint
Constructor Detail

jq_CompiledCode

public jq_CompiledCode(jq_Method method,
                       Memory.CodeAddress start,
                       int length,
                       Memory.CodeAddress entrypoint,
                       jq_TryCatch[] handlers,
                       jq_BytecodeMap bcm,
                       java.lang.Object ed,
                       int stackframesize,
                       java.util.List code_reloc,
                       java.util.List data_reloc)
Method Detail

getMethod

public jq_Method getMethod()

getStart

public Memory.CodeAddress getStart()

getLength

public int getLength()

getEntrypoint

public Memory.CodeAddress getEntrypoint()

getStackFrameSize

public int getStackFrameSize()

findCatchBlock

public jq_TryCatch findCatchBlock(Memory.CodeAddress ip,
                                  jq_Class extype)

deliverException

public void deliverException(jq_TryCatch tc,
                             Memory.StackAddress fp,
                             java.lang.Throwable x)

getThisPointer

public java.lang.Object getThisPointer(Memory.CodeAddress ip,
                                       Memory.StackAddress fp)

getBytecodeIndex

public int getBytecodeIndex(Memory.CodeAddress ip)

redirect

public void redirect(jq_CompiledCode that)
Rewrite the entrypoint to branch to the given compiled code.


toString

public java.lang.String toString()
Description copied from class: java.lang.Object
Convert this Object to a human-readable String. There are no limits placed on how long this String should be or what it should contain. We suggest you make it as intuitive as possible to be able to place it into System.out.println() 55 and such.

It is typical, but not required, to ensure that this method never completes abruptly with a java.lang.RuntimeException.

This method will be called when performing string concatenation with this object. If the result is null, string concatenation will instead use "null".

The default implementation returns getClass().getName() + "@" + Integer.toHexString(hashCode()).


contains

public boolean contains(Memory.CodeAddress address)

patchDirectBindCalls

public void patchDirectBindCalls()

patchDirectBindCalls

public void patchDirectBindCalls(jq_Method method,
                                 jq_CompiledCode cc)

compareTo

public int compareTo(jq_CompiledCode that)

compareTo

public int compareTo(java.lang.Object o)
Description copied from interface: java.lang.Comparable
Compares this object with another, and returns a numerical result based on the comparison. If the result is negative, this object sorts less than the other; if 0, the two are equal, and if positive, this object sorts greater than the other. To translate this into boolean, simply perform o1.compareTo(o2) <op> 0, where op is one of <, <=, =, !=, >, or >=.

You must make sure that the comparison is mutual, ie. sgn(x.compareTo(y)) == -sgn(y.compareTo(x)) (where sgn() is defined as -1, 0, or 1 based on the sign). This includes throwing an exception in either direction if the two are not comparable; hence, compareTo(null) should always throw an Exception.

You should also ensure transitivity, in two forms: x.compareTo(y) > 0 && y.compareTo(z) > 0 implies x.compareTo(z) > 0; and x.compareTo(y) == 0 implies x.compareTo(z) == y.compareTo(z).

Specified by:
compareTo in interface java.lang.Comparable

equals

public boolean equals(java.lang.Object o)
Description copied from class: java.lang.Object
Determine whether this Object is semantically equal to another Object.

There are some fairly strict requirements on this method which subclasses must follow:

  • It must be transitive. If a.equals(b) and b.equals(c), then a.equals(c) must be true as well.
  • It must be symmetric. a.equals(b) and b.equals(a) must have the same value.
  • It must be reflexive. a.equals(a) must always be true.
  • It must be consistent. Whichever value a.equals(b) returns on the first invocation must be the value returned on all later invocations.
  • a.equals(null) must be false.
  • It must be consistent with hashCode(). That is, a.equals(b) must imply a.hashCode() == b.hashCode(). The reverse is not true; two objects that are not equal may have the same hashcode, but that has the potential to harm hashing performance.

This is typically overridden to throw a java.lang.ClassCastException if the argument is not comparable to the class performing the comparison, but that is not a requirement. It is legal for a.equals(b) to be true even though a.getClass() != b.getClass(). Also, it is typical to never cause a java.lang.NullPointerException.

In general, the Collections API (java.util) use the equals method rather than the == operator to compare objects. However, java.util.IdentityHashMap is an exception to this rule, for its own good reasons.

The default implementation returns this == o.


hashCode

public int hashCode()
NOTE that this violates the contract of hashCode when comparing against InstructionPointer objects!


attemptDelegate

private static jq_CompiledCode.Delegate attemptDelegate(java.lang.String s)