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/* *******************************************************************
* Copyright (c) 1999-2001 Xerox Corporation,
* 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:
* Xerox/PARC initial implementation
* ******************************************************************/
package org.aspectj.bridge;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
/**
* Wrap message with any associated throwable or source location.
*/
public interface IMessage {
/** no messages */
IMessage[] RA_IMessage = new IMessage[0];
// int values must sync with KINDS order below
Kind WEAVEINFO = new Kind("weaveinfo", 5);
Kind INFO = new Kind("info", 10);
Kind USAGE = new Kind("usage", 15);
Kind DEBUG = new Kind("debug", 20);
Kind TASKTAG = new Kind("task", 25); // represents a 'TODO' from eclipse - produced by the compiler and
// consumed by AJDT
Kind WARNING = new Kind("warning", 30);
Kind ERROR = new Kind("error", 40);
Kind FAIL = new Kind("fail", 50);
Kind ABORT = new Kind("abort", 60);
// XXX prefer another Kind to act as selector for "any",
// but can't prohibit creating messages with it.
// public static final Kind ANY = new Kind("any-selector", 0);
/**
* list of Kind in precedence order. 0 is less than IMessage.Kind#COMPARATOR.compareTo(KINDS.get(i), KINDS.get(i + 1))
*/
List KINDS = Collections.unmodifiableList(Arrays.asList(new Kind[] { WEAVEINFO, INFO, USAGE, DEBUG, TASKTAG,
WARNING, ERROR, FAIL, ABORT }));
/** @return non-null String with simple message */
String getMessage();
/** @return the kind of this message */
Kind getKind();
/** @return true if this is an error */
boolean isError();
/** @return true if this is a warning */
boolean isWarning();
/** @return true if this is an internal debug message */
boolean isDebug();
/** @return true if this is a compiler usage message */
boolean isUsage();
/** @return true if this is information for the user */
boolean isInfo();
/** @return true if the process is aborting */
boolean isAbort(); // XXX ambiguous
/** @return true if this is a task tag message */
boolean isTaskTag();
/** @return true if something failed */
boolean isFailed();
/** Caller can verify if this message came about because of a DEOW */
boolean getDeclared();
/** Return the ID of the message where applicable, see IProblem for list of valid IDs */
int getID();
/** Return the start position of the problem (inclusive), or -1 if unknown. */
int getSourceStart();
/** Return the end position of the problem (inclusive), or -1 if unknown. */
int getSourceEnd();
/** @return Throwable associated with this message, or null if none */
Throwable getThrown();
/** @return source location associated with this message, or null if none */
ISourceLocation getSourceLocation();
final class Kind implements Comparable {
public static final Comparator COMPARATOR = new Comparator() {
public int compare(IMessage.Kind one, IMessage.Kind two) {
if (null == one) {
return (null == two ? 0 : -1);
} else if (null == two) {
return 1;
} else if (one == two) {
return 0;
} else {
return (one.precedence - two.precedence);
}
}
};
/**
* @param kind the Kind floor
* @return false if kind is null or this has less precedence than kind, true otherwise.
*/
public boolean isSameOrLessThan(Kind kind) {
return (0 >= COMPARATOR.compare(this, kind));
}
public int compareTo(IMessage.Kind other) {
return COMPARATOR.compare(this, other);
}
private final int precedence;
private final String name;
private Kind(String name, int precedence) {
this.name = name;
this.precedence = precedence;
}
public String toString() {
return name;
}
}
/**
* @return Detailed information about the message. For example, for declare error/warning messages this returns information
* about the corresponding join point's static part.
*/
String getDetails();
/**
* @return List of ISourceLocation instances that indicate additional source locations relevent to this message as
* specified by the message creator. The list should not include the primary source location associated with the message
* which can be obtained from getSourceLocation().
*
* An example of using extra locations would be in a warning message that
* flags all shadow locations that will go unmatched due to a pointcut definition
* being based on a subtype of a defining type.
* @see AspectJ bug 41952
*/
/**
* Return a List of ISourceLocation instances that indicate additional source locations relevent to this message as
* specified by the message creator. The list should not include the primary source location associated with the message
* which can be obtained from getSourceLocation().
*
* An example of using extra locations would be in a warning message that
* flags all shadow locations that will go unmatched due to a pointcut definition
* being based on a subtype of a defining type.
*
*
* @return a list of additional source locations
* @see AspectJ bug 41952
*/
List getExtraSourceLocations();
}