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AspectJ tools most notably contains the AspectJ compiler (AJC). AJC applies aspects to Java classes during
compilation, fully replacing Javac for plain Java classes and also compiling native AspectJ or annotation-based
@AspectJ syntax. Furthermore, AJC can weave aspects into existing class files in a post-compile binary weaving step.
This library is a superset of AspectJ weaver and hence also of AspectJ runtime.
/* *******************************************************************
* Copyright (c) 2002 Palo Alto Research Center, Incorporated (PARC).
* All rights reserved.
* This program and the accompanying materials are made available
* under the terms of the Eclipse Public License v 2.0
* which accompanies this distribution and is available at
* https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt
*
* Contributors:
* PARC initial implementation
* ******************************************************************/
package org.aspectj.ajdt.internal.compiler.ast;
import org.aspectj.ajdt.internal.compiler.lookup.EclipseFactory;
import org.aspectj.ajdt.internal.compiler.lookup.EclipseSourceLocation;
import org.aspectj.bridge.IMessage;
import org.aspectj.bridge.ISourceLocation;
import org.aspectj.org.eclipse.jdt.internal.compiler.ASTVisitor;
import org.aspectj.org.eclipse.jdt.internal.compiler.ast.Expression;
import org.aspectj.org.eclipse.jdt.internal.compiler.ast.FieldReference;
import org.aspectj.org.eclipse.jdt.internal.compiler.ast.MessageSend;
import org.aspectj.org.eclipse.jdt.internal.compiler.ast.SuperReference;
import org.aspectj.org.eclipse.jdt.internal.compiler.ast.TypeDeclaration;
import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.BlockScope;
import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding;
import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.Scope;
import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.TypeBinding;
/**
* Walks the body of inter-type declarations and replaces SuperReference with InterSuperReference
*
* @author Jim Hugunin
*/
public class InterSuperFixerVisitor extends ASTVisitor {
InterTypeDeclaration dec;
ReferenceBinding onType;
TypeBinding superType;
private int depthCounter = 0; // Keeps track of whether we are inside any nested local type declarations
EclipseFactory world;
public InterSuperFixerVisitor(InterTypeDeclaration dec, EclipseFactory world, Scope scope) {
this.dec = dec;
this.onType = dec.onTypeBinding;
this.world = world;
// AMC with the java 5 compiler the superclass() of an interface is object,
// not a parent interface (if one exists)
if (onType.isInterface() && onType.superInterfaces().length == 1) {
superType=onType.superInterfaces()[0];
} else if (onType.superclass() != null) {
superType = onType.superclass();
} else if (onType.superInterfaces() == null || onType.superInterfaces().length == 0) {
superType = scope.getJavaLangObject();
} else if (onType.superInterfaces().length == 1) {
superType = onType.superInterfaces()[0];
} else {
superType = null;
}
}
public void endVisit(FieldReference ref, BlockScope scope) {
ref.receiver = fixReceiver(ref.receiver, scope);
}
public void endVisit(MessageSend send, BlockScope scope) {
send.receiver = fixReceiver(send.receiver, scope);
}
public boolean visit(TypeDeclaration localTypeDeclaration, BlockScope scope) {
depthCounter++;
return super.visit(localTypeDeclaration, scope);
}
public void endVisit(TypeDeclaration localTypeDeclaration,BlockScope scope) {
depthCounter--;
}
private Expression fixReceiver(Expression expression, BlockScope scope) {
if (depthCounter!=0) return expression; // Don't mess with super calls down in nested local type declarations (pr90143)
if (expression instanceof SuperReference) {
SuperReference superRef = (SuperReference) expression;
if (superType == null) {
ISourceLocation location =
new EclipseSourceLocation(scope.problemReporter().referenceContext.compilationResult(),
expression.sourceStart, expression.sourceEnd);
world.showMessage(IMessage.ERROR, "multiple supertypes for this interface", location, null);
dec.ignoreFurtherInvestigation = true;
}
//FIXME ??? note error
expression = new InterSuperReference(superRef, superType);
}
return expression;
}
}