From: aclement Date: Fri, 21 Oct 2005 18:10:10 +0000 (+0000) Subject: complex aspect! X-Git-Tag: V1_5_0RC1~333 X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=030288930ae5084f44ed8cc1859e46c78a08ae84;p=aspectj.git complex aspect! --- diff --git a/tests/java5/generics/genericaspects/GenericAspectV.aj b/tests/java5/generics/genericaspects/GenericAspectV.aj new file mode 100644 index 000000000..74585d732 --- /dev/null +++ b/tests/java5/generics/genericaspects/GenericAspectV.aj @@ -0,0 +1,160 @@ +import java.util.*; +import java.lang.reflect.*; +import org.aspectj.lang.annotation.*; + +// ABRACADABRA + +abstract aspect ParentChildRelationship { + + // The interfaces + interface ParentHasChildren{ + List getChildren(); + void addChild(C child); + void removeChild(C child); + } + + interface ChildHasParent

{ + P getParent(); + void setParent(P parent); + } + + + // Put the interfaces on the relevant people + declare parents: Parent implements ParentHasChildren; + declare parents: Child implements ChildHasParent; + + public E ChildHasParent.getParent() { + return parent; + } + + public List ParentHasChildren.children = new ArrayList(); + public B ChildHasParent.parent; + + public List ParentHasChildren.getChildren() { + return Collections.unmodifiableList(children); + } + + public void ChildHasParent.setParent(F parent) { + this.parent = parent; + } + + public void ParentHasChildren.addChild(G child) { + if (child.getParent() != null) { + child.getParent().removeChild(child); + } + children.add(child); + } + + public void ParentHasChildren.removeChild(H child) { + if (children.remove(child)) { + child.setParent(null); + } + } + +} + +aspect GenericAspectV extends ParentChildRelationship { + + public static void main(String []argv) { + + // Check the state of top + Top t = new Top(); + check(t instanceof ParentHasChildren,"Top should implement ParentHasChildren"); + Type[] intfs = Top.class.getGenericInterfaces(); + check(intfs[0] instanceof ParameterizedType, + "Expected Top to have parameterized interface but found "+intfs[0]); + ParameterizedType pt = (ParameterizedType) intfs[0]; + Type[] tArgs = pt.getActualTypeArguments(); + check(tArgs[0]==Bottom.class, + "Expecting Bottom parameter but found " + tArgs[0]); + + + // Check the state of top + Bottom b = new Bottom(); + check(b instanceof ChildHasParent,"Bottom should implement ChildHasParent"); + intfs = Bottom.class.getGenericInterfaces(); + check(intfs[0] instanceof ParameterizedType, + "Expected Bottom to have parameterized interface but found "+intfs[0]); + pt = (ParameterizedType) intfs[0]; + tArgs = pt.getActualTypeArguments(); + check(tArgs[0]==Top.class, + "Expecting Top parameter but found " + tArgs[0]); + + + + + // Field fiddling + b.parent = t; + List kids = new ArrayList(); + kids.add(b); + t.children = kids; + + + // start using the methods + List kids2 = t.getChildren(); + check(kids2.size()==1, + "Expected one child of the Top but found "+kids2.size()); + check(kids2.get(0).equals(b), + "Expected one child of the Top which was what we put in there!"+kids2.get(0)); + + // and the parent methods + Top retrievedParent = b.getParent(); + check(retrievedParent==t, + "parent check 1 failed "+ + "retrieved="+retrievedParent+" expected="+t); + + + Top top2 = new Top(); + b.setParent(top2); + Top retrievedParent2 = b.getParent(); + check(retrievedParent2==top2, + "parent check 2 failed "+ + "retrieved="+retrievedParent2+" expected="+top2); + + Top top3 = new Top(); + Bottom bot2 = new Bottom(); + top3.addChild(bot2); + Bottom aBottom = top3.getChildren().get(0); + check(aBottom==bot2,"Incorrect child? expected="+bot2+" found="+aBottom); + top3.removeChild(bot2); + int size=top3.getChildren().size(); + check(size==0,"Should be no children but there were "+size); + + + } + + public static void check(boolean b,String msg) { + if (!b) throw new RuntimeException(msg); + } +} + +class Top {} +class Bottom {} + +////////////////////////////////////////////////////////////////// + +/* End game for test Z, as bits work they are promoted up into the + testcase above :) + + TestN promoted the declare parents statements up + TestO promoted the fields up - a parent knows its children, a + child knows its parents - but then used them incorrectly + TestP uses the fields correctly + TestQ ... tests some stumbling blocks I encountered before R... + TestR promoted getChildren() method + TestS promoted getParent() and setParent() + TestT ... tests some stumbling blocks I encountered before U... + TestU promoted addChild and removeChild + +public abstract aspect ParentChildRelationship { + + @SuppressAjWarnings + public pointcut addingChild(Parent p, Child c) : + execution(* Parent.addChild(Child)) && this(p) && args(c); + + @SuppressAjWarnings + public pointcut removingChild(Parent p, Child c) : + execution(* Parent.removeChild(Child)) && this(p) && args(c); +} +*/ +