From 9c38e399f5d9c75fdd2b918752fba7fa12b28673 Mon Sep 17 00:00:00 2001
From: aclement <aclement>
Date: Fri, 20 Jan 2006 09:40:54 +0000
Subject: 77166 - newarray joinpoint support. "-Xjoinpoints:arrayconstruction"

---
 .../aspectj/weaver/JoinPointSignatureIterator.java | 10 ++++
 weaver/src/org/aspectj/weaver/Shadow.java          | 22 ++++++++
 weaver/src/org/aspectj/weaver/World.java           |  1 +
 .../org/aspectj/weaver/bcel/BcelClassWeaver.java   | 38 +++++++++++++-
 weaver/src/org/aspectj/weaver/bcel/BcelShadow.java | 61 +++++++++++++++++++---
 .../org/aspectj/weaver/patterns/ArgsPointcut.java  |  7 ++-
 6 files changed, 130 insertions(+), 9 deletions(-)

(limited to 'weaver')

diff --git a/weaver/src/org/aspectj/weaver/JoinPointSignatureIterator.java b/weaver/src/org/aspectj/weaver/JoinPointSignatureIterator.java
index b11f41f80..265f6f4e0 100644
--- a/weaver/src/org/aspectj/weaver/JoinPointSignatureIterator.java
+++ b/weaver/src/org/aspectj/weaver/JoinPointSignatureIterator.java
@@ -96,7 +96,17 @@ public class JoinPointSignatureIterator implements Iterator {
 	   	// Walk up hierarchy creating one member for each type up to and including the
     	// first defining type
     	ResolvedType originalDeclaringType = signaturesOfMember.getDeclaringType().resolve(world);
+    	
+    	if (world.isJoinpointArrayConstructionEnabled() && originalDeclaringType.isArray()) { // Aha, this must be the array constructor call join point - a 'special'...
+    		Member m = signaturesOfMember;
+    		ResolvedMember rm = new ResolvedMemberImpl(m.getKind(),m.getDeclaringType(),m.getModifiers(),m.getReturnType(),m.getName(),m.getParameterTypes());
+    		discoveredSignatures.add(new JoinPointSignature(rm,originalDeclaringType));
+    		couldBeFurtherAsYetUndiscoveredSignatures = false;
+    		return;
+    	}
+
     	firstDefiningMember = (ResolvedMemberImpl) signaturesOfMember.resolve(world);
+    	
     	if (firstDefiningMember == null) {
     		couldBeFurtherAsYetUndiscoveredSignatures = false;
     		return;
diff --git a/weaver/src/org/aspectj/weaver/Shadow.java b/weaver/src/org/aspectj/weaver/Shadow.java
index 4d28fbe59..ab652b24c 100644
--- a/weaver/src/org/aspectj/weaver/Shadow.java
+++ b/weaver/src/org/aspectj/weaver/Shadow.java
@@ -142,7 +142,29 @@ public abstract class Shadow {
         return getSignature().getParameterTypes();
     }
     
+    public boolean isShadowForArrayConstructionJoinpoint() {
+    	return (getKind()==ConstructorCall && signature.getDeclaringType().isArray());
+    }
+    
+    // will return the right length array of ints depending on how many dimensions the array has
+    public ResolvedType[] getArgumentTypesForArrayConstructionShadow() {
+    	String s = signature.getDeclaringType().getSignature();
+		int pos = s.indexOf("[");
+		int dims = 1;
+		while (pos<s.length()) {
+			pos++;
+			if (pos<s.length()) dims+=(s.charAt(pos)=='['?1:0);
+		}
+		if (dims==1) return new ResolvedType[]{ResolvedType.INT};
+		ResolvedType[] someInts = new ResolvedType[dims];
+		for (int i = 0; i < dims;i++) someInts[i] = ResolvedType.INT;
+		return someInts;
+    }
+    
     public UnresolvedType[] getGenericArgTypes() {
+    	if (isShadowForArrayConstructionJoinpoint()) {
+    		return getArgumentTypesForArrayConstructionShadow();
+    	}
     	if (getKind() == FieldSet) return new UnresolvedType[] { getResolvedSignature().getGenericReturnType() };
         return getResolvedSignature().getGenericParameterTypes();    	
     }
diff --git a/weaver/src/org/aspectj/weaver/World.java b/weaver/src/org/aspectj/weaver/World.java
index a8193d2fa..c470a0ec6 100644
--- a/weaver/src/org/aspectj/weaver/World.java
+++ b/weaver/src/org/aspectj/weaver/World.java
@@ -665,6 +665,7 @@ public abstract class World implements Dump.INode {
 	}
 	
 	public void setOptionalJoinpoints(String jps) {
+		if (jps==null) return;
 		if (jps.indexOf("arrayconstruction")!=-1) {
 			optionalJoinpoint_ArrayConstruction = true;
 		}
diff --git a/weaver/src/org/aspectj/weaver/bcel/BcelClassWeaver.java b/weaver/src/org/aspectj/weaver/bcel/BcelClassWeaver.java
index a2a887017..3e7f7a70d 100644
--- a/weaver/src/org/aspectj/weaver/bcel/BcelClassWeaver.java
+++ b/weaver/src/org/aspectj/weaver/bcel/BcelClassWeaver.java
@@ -29,6 +29,7 @@ import org.aspectj.apache.bcel.Constants;
 import org.aspectj.apache.bcel.classfile.Field;
 import org.aspectj.apache.bcel.classfile.Method;
 import org.aspectj.apache.bcel.classfile.annotation.Annotation;
+import org.aspectj.apache.bcel.generic.ANEWARRAY;
 import org.aspectj.apache.bcel.generic.BranchInstruction;
 import org.aspectj.apache.bcel.generic.CPInstruction;
 import org.aspectj.apache.bcel.generic.ConstantPoolGen;
@@ -44,8 +45,10 @@ import org.aspectj.apache.bcel.generic.InstructionList;
 import org.aspectj.apache.bcel.generic.InstructionTargeter;
 import org.aspectj.apache.bcel.generic.InvokeInstruction;
 import org.aspectj.apache.bcel.generic.LocalVariableInstruction;
+import org.aspectj.apache.bcel.generic.MULTIANEWARRAY;
 import org.aspectj.apache.bcel.generic.MethodGen;
 import org.aspectj.apache.bcel.generic.NEW;
+import org.aspectj.apache.bcel.generic.NEWARRAY;
 import org.aspectj.apache.bcel.generic.ObjectType;
 import org.aspectj.apache.bcel.generic.PUTFIELD;
 import org.aspectj.apache.bcel.generic.PUTSTATIC;
@@ -1881,7 +1884,40 @@ class BcelClassWeaver implements IClassWeaver {
 			} else {
 					matchInvokeInstruction(mg, ih, ii, enclosingShadow, shadowAccumulator);
 			}
-		} 
+		} else if (world.isJoinpointArrayConstructionEnabled() && 
+				   (i instanceof NEWARRAY || i instanceof ANEWARRAY || i instanceof MULTIANEWARRAY)) {
+			if (canMatch(Shadow.ConstructorCall)) {
+				boolean debug = false;
+				if (debug) System.err.println("Found new array instruction: "+i);
+				if (i instanceof ANEWARRAY) {
+					ANEWARRAY arrayInstruction = (ANEWARRAY)i;
+					ObjectType arrayType = arrayInstruction.getLoadClassType(clazz.getConstantPoolGen());
+					if (debug) System.err.println("Array type is "+arrayType);
+					BcelShadow ctorCallShadow = BcelShadow.makeArrayConstructorCall(world,mg,ih,enclosingShadow);
+					match(ctorCallShadow,shadowAccumulator);
+				} else if (i instanceof NEWARRAY) {
+					NEWARRAY arrayInstruction = (NEWARRAY)i;
+					Type arrayType = arrayInstruction.getType();
+					if (debug) System.err.println("Array type is "+arrayType);
+					BcelShadow ctorCallShadow = BcelShadow.makeArrayConstructorCall(world,mg,ih,enclosingShadow);
+					match(ctorCallShadow,shadowAccumulator);
+				} else if (i instanceof MULTIANEWARRAY) {
+					MULTIANEWARRAY arrayInstruction = (MULTIANEWARRAY)i;
+					ObjectType arrayType = arrayInstruction.getLoadClassType(clazz.getConstantPoolGen());
+					if (debug) System.err.println("Array type is "+arrayType);
+					BcelShadow ctorCallShadow = BcelShadow.makeArrayConstructorCall(world,mg,ih,enclosingShadow);
+					match(ctorCallShadow,shadowAccumulator);
+				}
+			}
+// see pr77166 if you are thinking about implementing this
+//		} else if (i instanceof AALOAD ) {
+//			AALOAD arrayLoad = (AALOAD)i;
+//			Type arrayType = arrayLoad.getType(clazz.getConstantPoolGen());
+//			BcelShadow arrayLoadShadow = BcelShadow.makeArrayLoadCall(world,mg,ih,enclosingShadow);
+//			match(arrayLoadShadow,shadowAccumulator);
+//		} else if (i instanceof AASTORE) {
+//			// ... magic required
+		}
 		// performance optimization... we only actually care about ASTORE instructions, 
 		// since that's what every javac type thing ever uses to start a handler, but for
 		// now we'll do this for everybody.
diff --git a/weaver/src/org/aspectj/weaver/bcel/BcelShadow.java b/weaver/src/org/aspectj/weaver/bcel/BcelShadow.java
index 3ff0d1764..6d04fcd00 100644
--- a/weaver/src/org/aspectj/weaver/bcel/BcelShadow.java
+++ b/weaver/src/org/aspectj/weaver/bcel/BcelShadow.java
@@ -269,7 +269,8 @@ public class BcelShadow extends Shadow {
 		// this up, every ShadowRange would have three instructionHandle points, the start of 
 		// the arg-setup code, the start of the running code, and the end of the running code.
 		if (getKind() == ConstructorCall) {
-			deleteNewAndDup();
+			if (!world.isJoinpointArrayConstructionEnabled() || !this.getSignature().getDeclaringType().isArray())
+			  deleteNewAndDup(); // no new/dup for new array construction
 			initializeArgVars();
 		} else if (getKind() == PreInitialization) { // pr74952
 			ShadowRange range = getRange();
@@ -377,12 +378,14 @@ public class BcelShadow extends Shadow {
 					Range.InsideBefore);
 			  }
 			  if (getKind() == ConstructorCall) {
-				range.insert((Instruction) InstructionFactory.createDup(1), Range.InsideBefore);
-				range.insert(
-					fact.createNew(
-						(ObjectType) BcelWorld.makeBcelType(
-							getSignature().getDeclaringType())),
-					Range.InsideBefore);
+				if (!world.isJoinpointArrayConstructionEnabled() || !this.getSignature().getDeclaringType().isArray()) {
+					range.insert((Instruction) InstructionFactory.createDup(1), Range.InsideBefore);
+					range.insert(
+						fact.createNew(
+							(ObjectType) BcelWorld.makeBcelType(
+								getSignature().getDeclaringType())),
+						Range.InsideBefore);
+			    }
 			  }
 			}
 		}
@@ -781,7 +784,51 @@ public class BcelShadow extends Shadow {
         retargetAllBranches(callHandle, r.getStart());                
         return s;
     }
+    
+    public static BcelShadow makeArrayConstructorCall(BcelWorld world,LazyMethodGen enclosingMethod,InstructionHandle arrayInstruction,BcelShadow enclosingShadow) {
+    	final InstructionList body = enclosingMethod.getBody();
+    	Member sig = world.makeJoinPointSignatureForArrayConstruction(enclosingMethod.getEnclosingClass(),arrayInstruction);
+    	BcelShadow s = 
+			new BcelShadow(
+				world,
+				ConstructorCall,
+				sig,
+                enclosingMethod, 
+                enclosingShadow);
+        ShadowRange r = new ShadowRange(body);
+        r.associateWithShadow(s);
+        r.associateWithTargets(
+        	Range.genStart(body, arrayInstruction),
+            Range.genEnd(body, arrayInstruction));
+        retargetAllBranches(arrayInstruction, r.getStart());                
+        return s;
+    }
 
+    // see pr77166
+//    public static BcelShadow makeArrayLoadCall(
+//            BcelWorld world,
+//            LazyMethodGen enclosingMethod,
+//            InstructionHandle arrayInstruction,
+//            BcelShadow enclosingShadow) 
+//    {
+//        final InstructionList body = enclosingMethod.getBody();
+//        Member sig = world.makeJoinPointSignatureForArrayLoad(enclosingMethod.getEnclosingClass(),arrayInstruction);
+//        BcelShadow s =
+//            new BcelShadow(
+//                world,
+//                MethodCall,
+//                sig,
+//                enclosingMethod,
+//                enclosingShadow);
+//        ShadowRange r = new ShadowRange(body);
+//        r.associateWithShadow(s);
+//        r.associateWithTargets(
+//        	Range.genStart(body, arrayInstruction),
+//            Range.genEnd(body, arrayInstruction));                
+//        retargetAllBranches(arrayInstruction, r.getStart());
+//        return s;
+//    }
+    
     public static BcelShadow makeMethodCall(
             BcelWorld world,
             LazyMethodGen enclosingMethod,
diff --git a/weaver/src/org/aspectj/weaver/patterns/ArgsPointcut.java b/weaver/src/org/aspectj/weaver/patterns/ArgsPointcut.java
index ae4e507e5..04581891b 100644
--- a/weaver/src/org/aspectj/weaver/patterns/ArgsPointcut.java
+++ b/weaver/src/org/aspectj/weaver/patterns/ArgsPointcut.java
@@ -81,8 +81,13 @@ public class ArgsPointcut extends NameBindingPointcut {
 	}
 	
 	private ResolvedType[] getArgumentsToMatchAgainst(Shadow shadow) {
+		
+		if (shadow.isShadowForArrayConstructionJoinpoint()) {
+		   return shadow.getArgumentTypesForArrayConstructionShadow();
+		}
+		
 		ResolvedType[] argumentsToMatchAgainst = shadow.getIWorld().resolve(shadow.getGenericArgTypes());
-
+		
 		// special treatment for adviceexecution which may have synthetic arguments we
 		// want to ignore.
 		if (shadow.getKind() == Shadow.AdviceExecution) {
-- 
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