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/* *******************************************************************
* 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 v1.0
* which accompanies this distribution and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* PARC initial implementation
* ******************************************************************/
package org.aspectj.weaver;
import java.util.ArrayList;
import java.util.List;
public class IntMap {
// public static final IntMap EMPTY = new IntMap(0) {
// public boolean directlyInAdvice() { return true; }
// public ShadowMunger getEnclosingAdvice() { return null; } //XXX possible
// };
// XXX begin hack to avoid a signature refactoring in Pointcut
private ResolvedType concreteAspect;
private ShadowMunger enclosingAdvice;
private List<ResolvedPointcutDefinition> enclosingDefinition = new ArrayList<ResolvedPointcutDefinition>();
public void pushEnclosingDefinition(ResolvedPointcutDefinition def) {
enclosingDefinition.add(def);
}
public void popEnclosingDefinitition() {
enclosingDefinition.remove(enclosingDefinition.size() - 1);
}
public ResolvedPointcutDefinition peekEnclosingDefinition() {
if (enclosingDefinition.size() == 0) {
return null;
}
return enclosingDefinition.get(enclosingDefinition.size() - 1);
}
public boolean directlyInAdvice() {
return enclosingDefinition.isEmpty();
}
public ShadowMunger getEnclosingAdvice() {
return enclosingAdvice;
}
public void setEnclosingAdvice(ShadowMunger advice) {
this.enclosingAdvice = advice;
}
public Member getAdviceSignature() {
if (enclosingAdvice instanceof Advice) {
return ((Advice) enclosingAdvice).getSignature();
} else {
return null;
}
}
public ResolvedType getConcreteAspect() {
return concreteAspect;
}
public void setConcreteAspect(ResolvedType concreteAspect) {
this.concreteAspect = concreteAspect;
}
public void copyContext(IntMap bindings) {
this.enclosingAdvice = bindings.enclosingAdvice;
this.enclosingDefinition = bindings.enclosingDefinition;
this.concreteAspect = bindings.concreteAspect;
}
// XXX end hack to avoid a signature refactoring in Pointcut
private static final int MISSING = -1;
private int[] map;
private IntMap(int[] map) {
this.map = map;
}
public IntMap() {
map = new int[0];
}
public IntMap(int initialCapacity) {
map = new int[initialCapacity];
for (int i = 0; i < initialCapacity; i++) {
map[i] = MISSING;
}
}
public void put(int key, int val) {
/* assert (val >= 0 && key >= 0) */
if (key >= map.length) {
int[] tmp = new int[key * 2 + 1]; // ??? better expansion function
System.arraycopy(map, 0, tmp, 0, map.length);
for (int i = map.length, len = tmp.length; i < len; i++) {
tmp[i] = MISSING;
}
map = tmp;
}
map[key] = val;
}
public int get(int key) {
return map[key];
}
public boolean hasKey(int key) {
return (key < map.length && map[key] != MISSING);
}
// ---- factory methods
public static IntMap idMap(int size) {
int[] map = new int[size];
for (int i = 0; i < size; i++) {
map[i] = i;
}
return new IntMap(map);
}
// ---- from object
public String toString() {
StringBuffer buf = new StringBuffer("[");
boolean seenFirst = false;
for (int i = 0, len = map.length; i < len; i++) {
if (map[i] != MISSING) {
if (seenFirst) {
buf.append(", ");
}
seenFirst = true;
buf.append(i);
buf.append(" -> ");
buf.append(map[i]);
}
}
buf.append("]");
return buf.toString();
}
}
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