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/*******************************************************************************
* Copyright (c) 2011, 2012 Wind River Systems, Inc. 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:
* Markus Schorn - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.core.parser;
import org.eclipse.cdt.core.parser.util.CharArrayUtils;
import org.eclipse.cdt.internal.core.parser.scanner.SignificantMacros;
/**
* Significant macros describe the conditions under which the preprocessor selects
* the same active code branches in a file.
* @since 5.4
* @noextend This interface is not intended to be extended by clients.
* @noimplement This interface is not intended to be implemented by clients.
*/
public interface ISignificantMacros {
interface IVisitor {
/**
* Returns whether to continue the visit.
*/
boolean visitDefined(char[] macro);
/**
* Returns whether to continue the visit.
*/
boolean visitUndefined(char[] macro);
/**
* Returns whether to continue the visit.
*/
boolean visitValue(char[] macro, char[] value);
}
ISignificantMacros NONE = new SignificantMacros(CharArrayUtils.EMPTY);
/**
* Returns whether visitor continued its visit till the end.
*/
boolean accept(IVisitor visitor);
/**
* Returns the significant macros encoded as an array of characters.
*/
char[] encode();
}
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