Copyright (c) 2000, 2014 IBM Corporation and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
    IBM Corporation - initial API and implementation
    Stephan Herrmann - Contribution for bug 349326 - [1.7] new warning for missing try-with-resources
/*******************************************************************************
 * Copyright (c) 2000, 2014 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     Stephan Herrmann - Contribution for bug 349326 - [1.7] new warning for missing try-with-resources
 *******************************************************************************/
package org.eclipse.jdt.internal.compiler.lookup;

import java.lang.reflect.Field;

import org.eclipse.jdt.core.compiler.CharOperation;

@SuppressWarnings("rawtypes")
public class ProblemReferenceBinding extends ReferenceBinding {
	ReferenceBinding closestMatch;
	private int problemReason;

// NOTE: must only answer the subset of the name related to the problem

public ProblemReferenceBinding(char[][] compoundName, ReferenceBinding closestMatch, int problemReason) {
	this.compoundName = compoundName;
	this.closestMatch = closestMatch;
	if (closestMatch != null) {
		this.sourceName = closestMatch.sourceName;
	}
	this.problemReason = problemReason;
}

@Override
public TypeBinding clone(TypeBinding enclosingType) {
	throw new IllegalStateException(); // shouldn't get here.
}
See Also:
closestMatch.closestMatch()/**
 * @see org.eclipse.jdt.internal.compiler.lookup.TypeBinding#closestMatch()
 */
@Override
public TypeBinding closestMatch() {
	return this.closestMatch;
}

See Also:
closestMatch.closestMatch()/**
 * @see org.eclipse.jdt.internal.compiler.lookup.TypeBinding#closestMatch()
 */
public ReferenceBinding closestReferenceMatch() {
	return this.closestMatch;
}

@Override
public boolean hasTypeBit(int bit) {
	if (this.closestMatch != null)
		return this.closestMatch.hasTypeBit(bit);
	return false;
}

/* API
* Answer the problem id associated with the receiver.
* NoError if the receiver is a valid binding.
*/
@Override
public int problemId() {
	return this.problemReason;
}

public static String problemReasonString(int problemReason) {
	try {
		Class reasons = ProblemReasons.class;
		String simpleName = reasons.getName();
		int lastDot = simpleName.lastIndexOf('.');
		if (lastDot >= 0) {
			simpleName = simpleName.substring(lastDot+1);
		}
		Field[] fields = reasons.getFields();
		for (int i = 0, length = fields.length; i < length; i++) {
			Field field = fields[i];
			if (!field.getType().equals(int.class)) continue;
			if (field.getInt(reasons) == problemReason) {
				return simpleName + '.' + field.getName();
			}
		}
	} catch (IllegalAccessException e) {
		// do nothing
	}
	return "unknown"; //$NON-NLS-1$
}

@Override
public void setTypeAnnotations(AnnotationBinding[] annotations, boolean evalNullAnnotations) {
	return; // reject misguided attempts.
}
See Also:
shortReadableName.shortReadableName()/**
 * @see org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding#shortReadableName()
 */
@Override
public char[] shortReadableName() {
	return readableName();
}

@Override
public char[] sourceName() {
	return this.compoundName.length == 0 ? null : this.compoundName[this.compoundName.length - 1]; // last segment of [java][util][Map$Entry]
}

@Override
public String toString() {
	StringBuffer buffer = new StringBuffer(10);
	buffer.append("ProblemType:[compoundName="); //$NON-NLS-1$
	buffer.append(this.compoundName == null ? "<null>" : new String(CharOperation.concatWith(this.compoundName,'.'))); //$NON-NLS-1$
	buffer.append("][problemID=").append(problemReasonString(this.problemReason)); //$NON-NLS-1$
	buffer.append("][closestMatch="); //$NON-NLS-1$
	buffer.append(this.closestMatch == null ? "<null>" : this.closestMatch.toString()); //$NON-NLS-1$
	buffer.append("]"); //$NON-NLS-1$
	return buffer.toString();
}
}