/* *******************************************************************
* Copyright (c) 2004 IBM Corporation.
* All rights reserved.
* This program and the accompanying materials are made available
* under the terms of the Common Public License v1.0
* which accompanies this distribution and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* ******************************************************************/
package org.aspectj.weaver.patterns;
import java.io.DataOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.aspectj.bridge.IMessage;
import org.aspectj.bridge.ISourceLocation;
import org.aspectj.bridge.MessageUtil;
import org.aspectj.util.FuzzyBoolean;
import org.aspectj.weaver.ISourceContext;
import org.aspectj.weaver.IntMap;
import org.aspectj.weaver.ResolvedType;
import org.aspectj.weaver.Shadow;
import org.aspectj.weaver.UnresolvedType;
import org.aspectj.weaver.VersionedDataInputStream;
import org.aspectj.weaver.WeaverMessages;
import org.aspectj.weaver.ast.Literal;
import org.aspectj.weaver.ast.Test;
import org.aspectj.weaver.ast.Var;
/**
* @author colyer
*
* TODO To change the template for this generated type comment go to
* Window - Preferences - Java - Code Style - Code Templates
*/
public class ArgsAnnotationPointcut extends NameBindingPointcut {
private AnnotationPatternList arguments;
private String declarationText;
/**
*
*/
public ArgsAnnotationPointcut(AnnotationPatternList arguments) {
super();
this.arguments = arguments;
this.pointcutKind = ATARGS;
buildDeclarationText();
}
public AnnotationPatternList getArguments() {
return arguments;
}
public Set couldMatchKinds() {
return Shadow.ALL_SHADOW_KINDS; // empty args() matches jps with no args
}
public Pointcut parameterizeWith(Map typeVariableMap) {
ArgsAnnotationPointcut ret = new ArgsAnnotationPointcut(arguments.parameterizeWith(typeVariableMap));
ret.copyLocationFrom(this);
return ret;
}
/* (non-Javadoc)
* @see org.aspectj.weaver.patterns.Pointcut#fastMatch(org.aspectj.weaver.patterns.FastMatchInfo)
*/
public FuzzyBoolean fastMatch(FastMatchInfo info) {
return FuzzyBoolean.MAYBE;
}
/* (non-Javadoc)
* @see org.aspectj.weaver.patterns.Pointcut#match(org.aspectj.weaver.Shadow)
*/
protected FuzzyBoolean matchInternal(Shadow shadow) {
arguments.resolve(shadow.getIWorld());
FuzzyBoolean ret =
arguments.matches(shadow.getIWorld().resolve(shadow.getArgTypes()));
return ret;
}
/* (non-Javadoc)
* @see org.aspectj.weaver.patterns.Pointcut#resolveBindings(org.aspectj.weaver.patterns.IScope, org.aspectj.weaver.patterns.Bindings)
*/
protected void resolveBindings(IScope scope, Bindings bindings) {
if (!scope.getWorld().isInJava5Mode()) {
scope.message(MessageUtil.error(WeaverMessages.format(WeaverMessages.ATARGS_ONLY_SUPPORTED_AT_JAVA5_LEVEL),
getSourceLocation()));
return;
}
arguments.resolveBindings(scope, bindings, true);
if (arguments.ellipsisCount > 1) {
scope.message(IMessage.ERROR, this,
"uses more than one .. in args (compiler limitation)");
}
}
/* (non-Javadoc)
* @see org.aspectj.weaver.patterns.Pointcut#concretize1(org.aspectj.weaver.ResolvedType, org.aspectj.weaver.IntMap)
*/
protected Pointcut concretize1(ResolvedType inAspect, ResolvedType declaringType, IntMap bindings) {
if (isDeclare(bindings.getEnclosingAdvice())) {
// Enforce rule about which designators are supported in declare
inAspect.getWorld().showMessage(IMessage.ERROR,
WeaverMessages.format(WeaverMessages.ARGS_IN_DECLARE),
bindings.getEnclosingAdvice().getSourceLocation(), null);
return Pointcut.makeMatchesNothing(Pointcut.CONCRETE);
}
AnnotationPatternList list = arguments.resolveReferences(bindings);
Pointcut ret = new ArgsAnnotationPointcut(list);
ret.copyLocationFrom(this);
return ret;
}
/* (non-Javadoc)
* @see org.aspectj.weaver.patterns.Pointcut#findResidue(org.aspectj.weaver.Shadow, org.aspectj.weaver.patterns.ExposedState)
*/
protected Test findResidueInternal(Shadow shadow, ExposedState state) {
int len = shadow.getArgCount();
// do some quick length tests first
int numArgsMatchedByEllipsis = (len + arguments.ellipsisCount) - arguments.size();
if (numArgsMatchedByEllipsis < 0) return Literal.FALSE; // should never happen
if ((numArgsMatchedByEllipsis > 0) && (arguments.ellipsisCount == 0)) {
return Literal.FALSE; // should never happen
}
// now work through the args and the patterns, skipping at ellipsis
Test ret = Literal.TRUE;
int argsIndex = 0;
for (int i = 0; i < arguments.size(); i++) {
if (arguments.get(i) == AnnotationTypePattern.ELLIPSIS) {
// match ellipsisMatchCount args
argsIndex += numArgsMatchedByEllipsis;
} else if (arguments.get(i) == AnnotationTypePattern.ANY) {
argsIndex++;
} else {
// match the argument type at argsIndex with the ExactAnnotationTypePattern
// we know it is exact because nothing else is allowed in args
ExactAnnotationTypePattern ap = (ExactAnnotationTypePattern)arguments.get(i);
UnresolvedType argType = shadow.getArgType(argsIndex);
ResolvedType rArgType = argType.resolve(shadow.getIWorld());
if (rArgType.isMissing()) {
shadow.getIWorld().getLint().cantFindType.signal(
new String[] {WeaverMessages.format(WeaverMessages.CANT_FIND_TYPE_ARG_TYPE,argType.getName())},
shadow.getSourceLocation(),
new ISourceLocation[]{getSourceLocation()}
);
// IMessage msg = new Message(
// WeaverMessages.format(WeaverMessages.CANT_FIND_TYPE_ARG_TYPE,argType.getName()),
// "",IMessage.ERROR,shadow.getSourceLocation(),null,new ISourceLocation[]{getSourceLocation()});
}
ResolvedType rAnnType = ap.getAnnotationType().resolve(shadow.getIWorld());
if (ap instanceof BindingAnnotationTypePattern) {
BindingAnnotationTypePattern btp = (BindingAnnotationTypePattern)ap;
Var annvar = shadow.getArgAnnotationVar(argsIndex,rAnnType);
state.set(btp.getFormalIndex(),annvar);
}
if (!ap.matches(rArgType).alwaysTrue()) {
// we need a test...
ret = Test.makeAnd(ret,
Test.makeHasAnnotation(
shadow.getArgVar(argsIndex),
rAnnType));
}
argsIndex++;
}
}
return ret;
}
/* (non-Javadoc)
* @see org.aspectj.weaver.patterns.NameBindingPointcut#getBindingAnnotationTypePatterns()
*/
public List getBindingAnnotationTypePatterns() {
List l = new ArrayList();
AnnotationTypePattern[] pats = arguments.getAnnotationPatterns();
for (int i = 0; i < pats.length; i++) {
if (pats[i] instanceof BindingAnnotationTypePattern) {
l.add(pats[i]);
}
}
return l;
}
/* (non-Javadoc)
* @see org.aspectj.weaver.patterns.NameBindingPointcut#getBindingTypePatterns()
*/
public List getBindingTypePatterns() {
return Collections.EMPTY_LIST;
}
/* (non-Javadoc)
* @see org.aspectj.weaver.patterns.PatternNode#write(java.io.DataOutputStream)
*/
public void write(DataOutputStream s) throws IOException {
s.writeByte(Pointcut.ATARGS);
arguments.write(s);
writeLocation(s);
}
public static Pointcut read(VersionedDataInputStream s, ISourceContext context) throws IOException {
AnnotationPatternList annotationPatternList = AnnotationPatternList.read(s,context);
ArgsAnnotationPointcut ret = new ArgsAnnotationPointcut(annotationPatternList);
ret.readLocation(context, s);
return ret;
}
/* (non-Javadoc)
* @see java.lang.Object#equals(java.lang.Object)
*/
public boolean equals(Object obj) {
if (!(obj instanceof ArgsAnnotationPointcut)) return false;
ArgsAnnotationPointcut other = (ArgsAnnotationPointcut) obj;
return other.arguments.equals(arguments);
}
/* (non-Javadoc)
* @see java.lang.Object#hashCode()
*/
public int hashCode() {
return 17 + 37*arguments.hashCode();
}
/* (non-Javadoc)
* @see java.lang.Object#toString()
*/
private void buildDeclarationText() {
StringBuffer buf = new StringBuffer("@args");
buf.append(arguments.toString());
this.declarationText = buf.toString();
}
public String toString() { return this.declarationText; }
public Object accept(PatternNodeVisitor visitor, Object data) {
return visitor.visit(this, data);
}
}