core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/dom/PDOMInclude.java - cdt/org.eclipse.cdt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2006, 2016 QNX Software Systems and others.
  * 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:
  * 	   QNX - Initial API and implementation
  *     Markus Schorn (Wind River Systems)
  *     Sergey Prigogin (Google)
  *******************************************************************************/
 package org.eclipse.cdt.internal.core.pdom.dom;

 import org.eclipse.cdt.core.dom.ast.IASTFileLocation;
 import org.eclipse.cdt.core.dom.ast.IASTName;
 import org.eclipse.cdt.core.dom.ast.IASTPreprocessorIncludeStatement;
 import org.eclipse.cdt.core.index.IIndexFile;
 import org.eclipse.cdt.core.index.IIndexFileLocation;
 import org.eclipse.cdt.internal.core.index.IIndexFragment;
 import org.eclipse.cdt.internal.core.index.IIndexFragmentFile;
 import org.eclipse.cdt.internal.core.index.IIndexFragmentInclude;
 import org.eclipse.cdt.internal.core.pdom.db.Database;
 import org.eclipse.core.runtime.CoreException;

 /**
  * @author Doug Schaefer
  */
 public class PDOMInclude implements IIndexFragmentInclude {
 	private static final int INCLUDED_FILE		 	=  0;
 	private static final int INCLUDED_BY 			=  4;
 	private static final int INCLUDES_NEXT 			=  8;
 	private static final int INCLUDED_BY_NEXT 		= 12;
 	private static final int INCLUDED_BY_PREV 		= 16;
 	// If the include name is the same as the end part of the path of the included file,
 	// we store the length of the name instead of the name itself, and indicate that
 	// by turning on FLAG_DEDUCIBLE_NAME flag. Notice that the length of include name
 	// can be different from the node length, if the name is defined by a macro.
 	private static final int INCLUDE_NAME_OR_LENGTH = 20; // TODO: assumes that int and stored pointers are the same size
 	private static final int NODE_OFFSET  			= 24; // 3-byte unsigned int (sufficient for files <= 16mb)
 	private static final int NODE_LENGTH  			= 27; // short (sufficient for names <= 32k)
 	private static final int FLAGS		 			= 29;
 	private static final int RECORD_SIZE 			= 30;

 	private static final int FLAG_SYSTEM_INCLUDE 		= 0x01;
 	private static final int FLAG_INACTIVE_INCLUDE 		= 0x02;
 	private static final int FLAG_RESOLVED_BY_HEURISTICS= 0x04;
 	private static final int FLAG_DEDUCIBLE_NAME		= 0x08;
 	private static final int FLAG_EXPORTED_FILE			= 0x10;

 	private final PDOMLinkage linkage;
 	private final long record;

 	// Cached fields
 	private String fName;

 	public PDOMInclude(PDOMLinkage linkage, long record) {
 		this.linkage = linkage;
 		this.record = record;
 	}

 	public PDOMInclude(PDOMLinkage linkage, IASTPreprocessorIncludeStatement include,
 			PDOMFile containerFile, PDOMFile targetFile) throws CoreException {
 		this.linkage = linkage;
 		this.record = linkage.getDB().malloc(RECORD_SIZE);
 		IASTName name = include.getName();
 		char[] nameChars = name.getSimpleID();
 		IASTFileLocation loc = name.getFileLocation();
 		// Includes generated by -include or -macro don't have a location
 		if (loc != null) {
 			linkage.getDB().put3ByteUnsignedInt(record + NODE_OFFSET, loc.getNodeOffset());
 			linkage.getDB().putShort(record + NODE_LENGTH, (short) loc.getNodeLength());
 		}

 		final Database db = linkage.getDB();
 		if (targetFile != null) {
 			db.putRecPtr(record + INCLUDED_FILE, targetFile.getRecord());
 		}
 		boolean deducible_name = isDeducibleName(targetFile, nameChars);
 		// If the name is the same as an end part of the path of the included file,
 		// store the length of the name instead of the name itself.
 		if (deducible_name) {
 			db.putInt(record + INCLUDE_NAME_OR_LENGTH, nameChars.length);
 		} else {
 			db.putRecPtr(record + INCLUDE_NAME_OR_LENGTH, db.newString(nameChars).getRecord());
 		}
 		setFlag(encodeFlags(include, deducible_name));
 		setIncludedBy(containerFile);
 	}

 	private byte encodeFlags(IASTPreprocessorIncludeStatement include, boolean deducible_name) {
 		byte flags= 0;
 		if (include.isSystemInclude()) {
 			flags |= FLAG_SYSTEM_INCLUDE;
 		}
 		if (!include.isActive()) {
 			flags |= FLAG_INACTIVE_INCLUDE;
 		} else if (include.isResolvedByHeuristics()) {
 			flags |= FLAG_RESOLVED_BY_HEURISTICS;
 		}
 		if (include.isIncludedFileExported()) {
 			flags |= FLAG_EXPORTED_FILE;
 		}
 		if (deducible_name) {
 			flags |= FLAG_DEDUCIBLE_NAME;
 		}
 		return flags;
 	}

 	public long getRecord() {
 		return record;
 	}

 	public void delete() throws CoreException {
 		if (isResolved()) {
 			// Remove us from the includedBy chain
 			removeThisFromIncludedByChain();
 		}
 		final Database db = linkage.getDB();
 		if ((getFlag() & FLAG_DEDUCIBLE_NAME) == 0) {
 			long rec = db.getRecPtr(record + INCLUDE_NAME_OR_LENGTH);
 			db.getString(rec).delete();
 		}
 		// Delete our record
 		db.free(record);
 	}

 	private void removeThisFromIncludedByChain() throws CoreException {
 		PDOMInclude prevInclude = getPrevInIncludedBy();
 		PDOMInclude nextInclude = getNextInIncludedBy();
 		if (prevInclude != null) {
 			prevInclude.setNextInIncludedBy(nextInclude);
 		} else {
 			((PDOMFile) getIncludes()).setFirstIncludedBy(nextInclude);
 		}

 		if (nextInclude != null)
 			nextInclude.setPrevInIncludedBy(prevInclude);
 	}

 	@Override
 	public IIndexFragmentFile getIncludes() throws CoreException {
 		long rec = linkage.getDB().getRecPtr(record + INCLUDED_FILE);
 		return rec != 0 ? new PDOMFile(linkage, rec) : null;
 	}

 	void setIncludes(PDOMFile includedFile) throws CoreException {
 		long rec = includedFile != null ? includedFile.getRecord() : 0;
 		linkage.getDB().putRecPtr(record + INCLUDED_FILE, rec);
 	}

 	/**
 	 * Checks if the name is the same as the end part of the path of the included file.
 	 */
 	private static boolean isDeducibleName(PDOMFile includedFile, char[] name) throws CoreException {
 		if (includedFile == null) {
 			return false;
 		}
 		String s = includedFile.getLocation().getURI().getPath();
 		int pos = s.length() - name.length;
 		if (pos < 0) {
 			return false;
 		}
 		for (int i = 0; i < name.length; i++, pos++) {
 			if (s.charAt(pos) != name[i]) {
 				return false;
 			}
 		}
 		return true;
 	}

 	@Override
 	public IIndexFile getIncludedBy() throws CoreException {
 		long rec = linkage.getDB().getRecPtr(record + INCLUDED_BY);
 		return rec != 0 ? new PDOMFile(linkage, rec) : null;
 	}

 	void setIncludedBy(PDOMFile includedBy) throws CoreException {
 		long rec = includedBy != null ? includedBy.getRecord() : 0;
 		linkage.getDB().putRecPtr(record + INCLUDED_BY, rec);
 	}

 	public PDOMInclude getNextInIncludes() throws CoreException {
 		long rec = linkage.getDB().getRecPtr(record + INCLUDES_NEXT);
 		return rec != 0 ? new PDOMInclude(linkage, rec) : null;
 	}

 	public void setNextInIncludes(PDOMInclude include) throws CoreException {
 		long rec = include != null ? include.getRecord() : 0;
 		linkage.getDB().putRecPtr(record + INCLUDES_NEXT, rec);
 	}

 	public PDOMInclude getNextInIncludedBy() throws CoreException {
 		long rec = linkage.getDB().getRecPtr(record + INCLUDED_BY_NEXT);
 		return rec != 0 ? new PDOMInclude(linkage, rec) : null;
 	}

 	public void setNextInIncludedBy(PDOMInclude include) throws CoreException {
 		long rec = include != null ? include.getRecord() : 0;
 		linkage.getDB().putRecPtr(record + INCLUDED_BY_NEXT, rec);
 	}

 	public PDOMInclude getPrevInIncludedBy() throws CoreException {
 		long rec = getPrevInIncludedByRecord();
 		return rec != 0 ? new PDOMInclude(linkage, rec) : null;
 	}

 	long getPrevInIncludedByRecord() throws CoreException {
 		return linkage.getDB().getRecPtr(record + INCLUDED_BY_PREV);
 	}

 	public void setPrevInIncludedBy(PDOMInclude include) throws CoreException {
 		long rec = include != null ? include.getRecord() : 0;
 		linkage.getDB().putRecPtr(record + INCLUDED_BY_PREV, rec);
 	}

 	@Override
 	public IIndexFileLocation getIncludedByLocation() throws CoreException {
 		return getIncludedBy().getLocation();
 	}

 	@Override
 	public IIndexFileLocation getIncludesLocation() throws CoreException {
 		IIndexFragmentFile includes = getIncludes();
 		return includes != null ? includes.getLocation() : null;
 	}

 	@Override
 	public IIndexFragment getFragment() {
 		return linkage.getPDOM();
 	}

 	private void setFlag(byte flag) throws CoreException {
 		linkage.getDB().putByte(record + FLAGS, flag);
 	}

 	private int getFlag() throws CoreException {
 		return linkage.getDB().getByte(record + FLAGS);
 	}

 	@Override
 	public boolean isSystemInclude() throws CoreException {
 		return (getFlag() & FLAG_SYSTEM_INCLUDE) != 0;
 	}

 	@Override
 	public boolean isActive() throws CoreException {
 		return (getFlag() & FLAG_INACTIVE_INCLUDE) == 0;
 	}

 	@Override
 	public boolean isResolved() throws CoreException {
 		return linkage.getDB().getRecPtr(record + INCLUDED_FILE) != 0;
 	}

 	@Override
 	public boolean isResolvedByHeuristics() throws CoreException {
 		return (getFlag() & FLAG_RESOLVED_BY_HEURISTICS) != 0;
 	}

 	@Override
 	public boolean isIncludedFileExported() throws CoreException {
 		return (getFlag() & FLAG_EXPORTED_FILE) != 0;
 	}

 	@Override
 	public int getNameOffset() throws CoreException {
 		return linkage.getDB().get3ByteUnsignedInt(record + NODE_OFFSET);
 	}

 	@Override
 	public int getNameLength() throws CoreException {
 		return linkage.getDB().getShort(record + NODE_LENGTH) & 0xffff;
 	}

 	@Override
 	public String getFullName() throws CoreException {
 		if (fName == null) {
 			final Database db = linkage.getDB();
 			// The include name is either stored explicitly, or can be deduced from the path
 			// of the included file.
 			if ((getFlag() & FLAG_DEDUCIBLE_NAME) == 0) {
 				long rec = db.getRecPtr(record + INCLUDE_NAME_OR_LENGTH);
 				fName = db.getString(rec).getString();
 			} else {
 				String path = getIncludes().getLocation().getURI().getPath();
 				int nameLength = db.getInt(record + INCLUDE_NAME_OR_LENGTH);
 				fName = path.substring(Math.max(path.length() - nameLength, 0));
 			}
 		}
 		return fName;
 	}

 	@Override
 	public String getName() throws CoreException {
 		final String fullName= getFullName();
 		final int idx= Math.max(fullName.lastIndexOf('/'), fullName.lastIndexOf('\\'));
 		return fullName.substring(idx + 1);
 	}

 	public void convertToUnresolved() throws CoreException {
 		if (isResolved()) {
 			final Database db = linkage.getDB();
 			int flag = getFlag();
 			// Since included file is going away, the name is no longer deducible.
 			if ((flag & FLAG_DEDUCIBLE_NAME) != 0) {
 				long rec= db.newString(getFullName()).getRecord();
 				db.putRecPtr(record + INCLUDE_NAME_OR_LENGTH, rec);
 				setFlag((byte) (flag & ~FLAG_DEDUCIBLE_NAME));
 			}
 			db.putRecPtr(record + INCLUDED_FILE, 0);
 		}
 	}

 	@Override
 	public String toString() {
 		StringBuilder buf = new StringBuilder();
 		try {
 			boolean isSystem = isSystemInclude();
 			buf.append(isSystem ? '<' : '"');
 			buf.append(getFullName());
 			buf.append(isSystem ? '>' : '"');
 			IIndexFile includedBy = getIncludedBy();
 			if (includedBy != null)
 				buf.append(" in ").append(includedBy); //$NON-NLS-1$
 			IIndexFragmentFile includes = getIncludes();
 			if (includes != null) {
 				buf.append(" resolved to ").append(includes); //$NON-NLS-1$
 			} else {
 				buf.append(" unresolved"); //$NON-NLS-1$
 			}
 		} catch (CoreException e) {
 			buf.append(" (incomplete due to ").append(e.getClass().getName()).append(')'); //$NON-NLS-1$
 			e.printStackTrace();
 		}
 		return buf.toString();
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2006, 2016 QNX Software Systems and others.
	* 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:
	* QNX - Initial API and implementation
	* Markus Schorn (Wind River Systems)
	* Sergey Prigogin (Google)
	*******************************************************************************/
	package org.eclipse.cdt.internal.core.pdom.dom;

	import org.eclipse.cdt.core.dom.ast.IASTFileLocation;
	import org.eclipse.cdt.core.dom.ast.IASTName;
	import org.eclipse.cdt.core.dom.ast.IASTPreprocessorIncludeStatement;
	import org.eclipse.cdt.core.index.IIndexFile;
	import org.eclipse.cdt.core.index.IIndexFileLocation;
	import org.eclipse.cdt.internal.core.index.IIndexFragment;
	import org.eclipse.cdt.internal.core.index.IIndexFragmentFile;
	import org.eclipse.cdt.internal.core.index.IIndexFragmentInclude;
	import org.eclipse.cdt.internal.core.pdom.db.Database;
	import org.eclipse.core.runtime.CoreException;

	/**
	* @author Doug Schaefer
	*/
	public class PDOMInclude implements IIndexFragmentInclude {
	private static final int INCLUDED_FILE = 0;
	private static final int INCLUDED_BY = 4;
	private static final int INCLUDES_NEXT = 8;
	private static final int INCLUDED_BY_NEXT = 12;
	private static final int INCLUDED_BY_PREV = 16;
	// If the include name is the same as the end part of the path of the included file,
	// we store the length of the name instead of the name itself, and indicate that
	// by turning on FLAG_DEDUCIBLE_NAME flag. Notice that the length of include name
	// can be different from the node length, if the name is defined by a macro.
	private static final int INCLUDE_NAME_OR_LENGTH = 20; // TODO: assumes that int and stored pointers are the same size
	private static final int NODE_OFFSET = 24; // 3-byte unsigned int (sufficient for files <= 16mb)
	private static final int NODE_LENGTH = 27; // short (sufficient for names <= 32k)
	private static final int FLAGS = 29;
	private static final int RECORD_SIZE = 30;

	private static final int FLAG_SYSTEM_INCLUDE = 0x01;
	private static final int FLAG_INACTIVE_INCLUDE = 0x02;
	private static final int FLAG_RESOLVED_BY_HEURISTICS= 0x04;
	private static final int FLAG_DEDUCIBLE_NAME = 0x08;
	private static final int FLAG_EXPORTED_FILE = 0x10;

	private final PDOMLinkage linkage;
	private final long record;

	// Cached fields
	private String fName;

	public PDOMInclude(PDOMLinkage linkage, long record) {
	this.linkage = linkage;
	this.record = record;
	}

	public PDOMInclude(PDOMLinkage linkage, IASTPreprocessorIncludeStatement include,
	PDOMFile containerFile, PDOMFile targetFile) throws CoreException {
	this.linkage = linkage;
	this.record = linkage.getDB().malloc(RECORD_SIZE);
	IASTName name = include.getName();
	char[] nameChars = name.getSimpleID();
	IASTFileLocation loc = name.getFileLocation();
	// Includes generated by -include or -macro don't have a location
	if (loc != null) {
	linkage.getDB().put3ByteUnsignedInt(record + NODE_OFFSET, loc.getNodeOffset());
	linkage.getDB().putShort(record + NODE_LENGTH, (short) loc.getNodeLength());
	}

	final Database db = linkage.getDB();
	if (targetFile != null) {
	db.putRecPtr(record + INCLUDED_FILE, targetFile.getRecord());
	}
	boolean deducible_name = isDeducibleName(targetFile, nameChars);
	// If the name is the same as an end part of the path of the included file,
	// store the length of the name instead of the name itself.
	if (deducible_name) {
	db.putInt(record + INCLUDE_NAME_OR_LENGTH, nameChars.length);
	} else {
	db.putRecPtr(record + INCLUDE_NAME_OR_LENGTH, db.newString(nameChars).getRecord());
	}
	setFlag(encodeFlags(include, deducible_name));
	setIncludedBy(containerFile);
	}

	private byte encodeFlags(IASTPreprocessorIncludeStatement include, boolean deducible_name) {
	byte flags= 0;
	if (include.isSystemInclude()) {
	flags \|= FLAG_SYSTEM_INCLUDE;
	}
	if (!include.isActive()) {
	flags \|= FLAG_INACTIVE_INCLUDE;
	} else if (include.isResolvedByHeuristics()) {
	flags \|= FLAG_RESOLVED_BY_HEURISTICS;
	}
	if (include.isIncludedFileExported()) {
	flags \|= FLAG_EXPORTED_FILE;
	}
	if (deducible_name) {
	flags \|= FLAG_DEDUCIBLE_NAME;
	}
	return flags;
	}

	public long getRecord() {
	return record;
	}

	public void delete() throws CoreException {
	if (isResolved()) {
	// Remove us from the includedBy chain
	removeThisFromIncludedByChain();
	}
	final Database db = linkage.getDB();
	if ((getFlag() & FLAG_DEDUCIBLE_NAME) == 0) {
	long rec = db.getRecPtr(record + INCLUDE_NAME_OR_LENGTH);
	db.getString(rec).delete();
	}
	// Delete our record
	db.free(record);
	}

	private void removeThisFromIncludedByChain() throws CoreException {
	PDOMInclude prevInclude = getPrevInIncludedBy();
	PDOMInclude nextInclude = getNextInIncludedBy();
	if (prevInclude != null) {
	prevInclude.setNextInIncludedBy(nextInclude);
	} else {
	((PDOMFile) getIncludes()).setFirstIncludedBy(nextInclude);
	}

	if (nextInclude != null)
	nextInclude.setPrevInIncludedBy(prevInclude);
	}

	@Override
	public IIndexFragmentFile getIncludes() throws CoreException {
	long rec = linkage.getDB().getRecPtr(record + INCLUDED_FILE);
	return rec != 0 ? new PDOMFile(linkage, rec) : null;
	}

	void setIncludes(PDOMFile includedFile) throws CoreException {
	long rec = includedFile != null ? includedFile.getRecord() : 0;
	linkage.getDB().putRecPtr(record + INCLUDED_FILE, rec);
	}

	/**
	* Checks if the name is the same as the end part of the path of the included file.
	*/
	private static boolean isDeducibleName(PDOMFile includedFile, char[] name) throws CoreException {
	if (includedFile == null) {
	return false;
	}
	String s = includedFile.getLocation().getURI().getPath();
	int pos = s.length() - name.length;
	if (pos < 0) {
	return false;
	}
	for (int i = 0; i < name.length; i++, pos++) {
	if (s.charAt(pos) != name[i]) {
	return false;
	}
	}
	return true;
	}

	@Override
	public IIndexFile getIncludedBy() throws CoreException {
	long rec = linkage.getDB().getRecPtr(record + INCLUDED_BY);
	return rec != 0 ? new PDOMFile(linkage, rec) : null;
	}

	void setIncludedBy(PDOMFile includedBy) throws CoreException {
	long rec = includedBy != null ? includedBy.getRecord() : 0;
	linkage.getDB().putRecPtr(record + INCLUDED_BY, rec);
	}

	public PDOMInclude getNextInIncludes() throws CoreException {
	long rec = linkage.getDB().getRecPtr(record + INCLUDES_NEXT);
	return rec != 0 ? new PDOMInclude(linkage, rec) : null;
	}

	public void setNextInIncludes(PDOMInclude include) throws CoreException {
	long rec = include != null ? include.getRecord() : 0;
	linkage.getDB().putRecPtr(record + INCLUDES_NEXT, rec);
	}

	public PDOMInclude getNextInIncludedBy() throws CoreException {
	long rec = linkage.getDB().getRecPtr(record + INCLUDED_BY_NEXT);
	return rec != 0 ? new PDOMInclude(linkage, rec) : null;
	}

	public void setNextInIncludedBy(PDOMInclude include) throws CoreException {
	long rec = include != null ? include.getRecord() : 0;
	linkage.getDB().putRecPtr(record + INCLUDED_BY_NEXT, rec);
	}

	public PDOMInclude getPrevInIncludedBy() throws CoreException {
	long rec = getPrevInIncludedByRecord();
	return rec != 0 ? new PDOMInclude(linkage, rec) : null;
	}

	long getPrevInIncludedByRecord() throws CoreException {
	return linkage.getDB().getRecPtr(record + INCLUDED_BY_PREV);
	}

	public void setPrevInIncludedBy(PDOMInclude include) throws CoreException {
	long rec = include != null ? include.getRecord() : 0;
	linkage.getDB().putRecPtr(record + INCLUDED_BY_PREV, rec);
	}

	@Override
	public IIndexFileLocation getIncludedByLocation() throws CoreException {
	return getIncludedBy().getLocation();
	}

	@Override
	public IIndexFileLocation getIncludesLocation() throws CoreException {
	IIndexFragmentFile includes = getIncludes();
	return includes != null ? includes.getLocation() : null;
	}

	@Override
	public IIndexFragment getFragment() {
	return linkage.getPDOM();
	}

	private void setFlag(byte flag) throws CoreException {
	linkage.getDB().putByte(record + FLAGS, flag);
	}

	private int getFlag() throws CoreException {
	return linkage.getDB().getByte(record + FLAGS);
	}

	@Override
	public boolean isSystemInclude() throws CoreException {
	return (getFlag() & FLAG_SYSTEM_INCLUDE) != 0;
	}

	@Override
	public boolean isActive() throws CoreException {
	return (getFlag() & FLAG_INACTIVE_INCLUDE) == 0;
	}

	@Override
	public boolean isResolved() throws CoreException {
	return linkage.getDB().getRecPtr(record + INCLUDED_FILE) != 0;
	}

	@Override
	public boolean isResolvedByHeuristics() throws CoreException {
	return (getFlag() & FLAG_RESOLVED_BY_HEURISTICS) != 0;
	}

	@Override
	public boolean isIncludedFileExported() throws CoreException {
	return (getFlag() & FLAG_EXPORTED_FILE) != 0;
	}

	@Override
	public int getNameOffset() throws CoreException {
	return linkage.getDB().get3ByteUnsignedInt(record + NODE_OFFSET);
	}

	@Override
	public int getNameLength() throws CoreException {
	return linkage.getDB().getShort(record + NODE_LENGTH) & 0xffff;
	}

	@Override
	public String getFullName() throws CoreException {
	if (fName == null) {
	final Database db = linkage.getDB();
	// The include name is either stored explicitly, or can be deduced from the path
	// of the included file.
	if ((getFlag() & FLAG_DEDUCIBLE_NAME) == 0) {
	long rec = db.getRecPtr(record + INCLUDE_NAME_OR_LENGTH);
	fName = db.getString(rec).getString();
	} else {
	String path = getIncludes().getLocation().getURI().getPath();
	int nameLength = db.getInt(record + INCLUDE_NAME_OR_LENGTH);
	fName = path.substring(Math.max(path.length() - nameLength, 0));
	}
	}
	return fName;
	}

	@Override
	public String getName() throws CoreException {
	final String fullName= getFullName();
	final int idx= Math.max(fullName.lastIndexOf('/'), fullName.lastIndexOf('\\'));
	return fullName.substring(idx + 1);
	}

	public void convertToUnresolved() throws CoreException {
	if (isResolved()) {
	final Database db = linkage.getDB();
	int flag = getFlag();
	// Since included file is going away, the name is no longer deducible.
	if ((flag & FLAG_DEDUCIBLE_NAME) != 0) {
	long rec= db.newString(getFullName()).getRecord();
	db.putRecPtr(record + INCLUDE_NAME_OR_LENGTH, rec);
	setFlag((byte) (flag & ~FLAG_DEDUCIBLE_NAME));
	}
	db.putRecPtr(record + INCLUDED_FILE, 0);
	}
	}

	@Override
	public String toString() {
	StringBuilder buf = new StringBuilder();
	try {
	boolean isSystem = isSystemInclude();
	buf.append(isSystem ? '<' : '"');
	buf.append(getFullName());
	buf.append(isSystem ? '>' : '"');
	IIndexFile includedBy = getIncludedBy();
	if (includedBy != null)
	buf.append(" in ").append(includedBy); //$NON-NLS-1$
	IIndexFragmentFile includes = getIncludes();
	if (includes != null) {
	buf.append(" resolved to ").append(includes); //$NON-NLS-1$
	} else {
	buf.append(" unresolved"); //$NON-NLS-1$
	}
	} catch (CoreException e) {
	buf.append(" (incomplete due to ").append(e.getClass().getName()).append(')'); //$NON-NLS-1$
	e.printStackTrace();
	}
	return buf.toString();
	}
	}