abc.weaving.aspectinfo
Class ThisAny

java.lang.Object
  abc.weaving.aspectinfo.Syntax
      abc.weaving.aspectinfo.Pointcut
          abc.weaving.aspectinfo.DynamicValuePointcut
              abc.weaving.aspectinfo.ThisAny

Direct Known Subclasses:

ThisType, ThisVar

public class ThisAny
extends DynamicValuePointcut

Handler for this condition pointcut with a universal pattern argument.

Author:

Aske Simon Christensen, Ganesh Sittampalam, Damien Sereni

Nested Class Summary

Nested classes/interfaces inherited from class abc.weaving.aspectinfo.Pointcut

Pointcut.DNF

Constructor Summary

ThisAny(Position pos)

Method Summary

void	getFreeVars(java.util.Set result) Get a list of free variables bound by this pointcut
protected Residue	matchesAt(WeavingEnv we, ContextValue cv)
Residue	matchesAt(WeavingEnv we, SootClass cls, SootMethod method, ShadowMatch sm) Given a context and weaving environment, produce a residue
void	registerSetupAdvice(Aspect aspct, java.util.Hashtable typeMap) If any synthetic advice is required to implement this pointcut, this method should take care of adding it.
java.lang.String	toString() Subclasses must define toString, for debugging purposes
boolean	unify(Pointcut otherpc, Unification unification) Attempt to unify two pointcuts. pc.unify(pc', unification) should return true if the pointcuts can be unified, and set the renamings appropriately in unification.

Methods inherited from class abc.weaving.aspectinfo.DynamicValuePointcut

inline

Methods inherited from class abc.weaving.aspectinfo.Pointcut

dnf, freshVar, normalize

Methods inherited from class abc.weaving.aspectinfo.Syntax

getPosition

Methods inherited from class java.lang.Object

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

Constructor Detail

ThisAny

public ThisAny(Position pos)

Method Detail

matchesAt

public final Residue matchesAt(WeavingEnv we,
                               SootClass cls,
                               SootMethod method,
                               ShadowMatch sm)

Description copied from class: Pointcut

Given a context and weaving environment, produce a residue

Specified by:

matchesAt in class Pointcut

matchesAt

protected Residue matchesAt(WeavingEnv we,
                            ContextValue cv)

toString

public java.lang.String toString()

Description copied from class: Pointcut

Subclasses must define toString, for debugging purposes

Specified by:

toString in class Pointcut

registerSetupAdvice

public void registerSetupAdvice(Aspect aspct,
                                java.util.Hashtable typeMap)

Description copied from class: Pointcut

If any synthetic advice is required to implement this pointcut, this method should take care of adding it.

Specified by:

registerSetupAdvice in class Pointcut

Parameters:

aspct - The aspect in which the pointcut is defined

typeMap - A mapping from formal name to AbcType for all the formal parameters to the pointcut

getFreeVars

public void getFreeVars(java.util.Set result)

Description copied from class: Pointcut

Get a list of free variables bound by this pointcut

Specified by:

getFreeVars in class Pointcut

Parameters:

result - The results should be placed in this set (having it as a parameter allows it to be built up incrementally, which is more efficient than repeatedly taking the union of sets)

unify

public boolean unify(Pointcut otherpc,
                     Unification unification)

Description copied from class: Pointcut

Attempt to unify two pointcuts. pc.unify(pc', unification) should return true if the pointcuts can be unified, and set the renamings appropriately in unification. There are two cases for unification: if unification.unifyWithFirst() is true, then the unification should only succeed if this pc can be renamed to pc', with the unification pointcut equal to this. Otherwise, the unification pointcut can be anything, as long as it can be renamed both to this and pc'.

A default implementation is provided, but all subclasses should override this - otherwise cflow CSE will be disabled for cflow that use these pointcuts.

Typical implementations for pointcuts that introduce no free variables are straightforward (see the And pointcut, for example). For pointcuts that introduce free variables, the Var.unify method is used to actually update the renamings (see the Args pointcut).

Overrides:

unify in class Pointcut

Parameters:

otherpc - the pointcut that should be unify with this

unification - the Unification that should be set.

Returns:

true iff the unification is succesful. If true is returned, then Unification.setPointcut(the unified pointcut) must have been called in the body of unify().

See Also:

AndPointcut.unify example, Var.unify, Unification