abc.weaving.aspectinfo
Class WithinConstructor

java.lang.Object
  abc.weaving.aspectinfo.Syntax
      abc.weaving.aspectinfo.Pointcut
          abc.weaving.aspectinfo.LexicalPointcut
              abc.weaving.aspectinfo.WithinConstructor

public class WithinConstructor
extends LexicalPointcut

Handler for withincode lexical pointcut with a constructor pattern

Author:

Ganesh Sittampalam

Nested Class Summary

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

Pointcut.DNF

Constructor Summary

WithinConstructor(ConstructorPattern pattern, Position pos)

Method Summary

ConstructorPattern	getPattern()
protected Residue	matchesAt(SootClass cls, SootMethod method) Do we match at a particular class and method?
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.LexicalPointcut

getFreeVars, inline, matchesAt, registerSetupAdvice

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

WithinConstructor

public WithinConstructor(ConstructorPattern pattern,
                         Position pos)

Method Detail

getPattern

public ConstructorPattern getPattern()

matchesAt

protected Residue matchesAt(SootClass cls,
                            SootMethod method)

Description copied from class: LexicalPointcut

Do we match at a particular class and method?

Specified by:

matchesAt in class LexicalPointcut

toString

public java.lang.String toString()

Description copied from class: Pointcut

Subclasses must define toString, for debugging purposes

Specified by:

toString in class Pointcut

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