org.eclipse.jdt.internal.core.search.indexing.BinaryContainer Maven / Gradle / Ivy
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/*******************************************************************************
* Copyright (c) 2016 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
*******************************************************************************/
package org.eclipse.jdt.internal.core.search.indexing;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jdt.core.compiler.InvalidInputException;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.eclipse.jdt.internal.compiler.parser.Scanner;
import org.eclipse.jdt.internal.compiler.parser.TerminalTokens;
import org.eclipse.jdt.internal.compiler.util.SuffixConstants;
public abstract class BinaryContainer extends IndexRequest {
Scanner scanner;
public BinaryContainer(IPath containerPath, IndexManager manager) {
super(containerPath, manager);
}
private boolean isIdentifier() throws InvalidInputException {
switch(this.scanner.scanIdentifier()) {
// assert and enum will not be recognized as java identifiers
// in 1.7 mode, which are in 1.3.
case TerminalTokens.TokenNameIdentifier:
case TerminalTokens.TokenNameassert:
case TerminalTokens.TokenNameenum:
return true;
default:
return false;
}
}
protected boolean isValidPackageNameForClassOrisModule(String className) {
if (className.substring(0, className.length() - (SuffixConstants.SUFFIX_CLASS.length)).equals(new String(IIndexConstants.MODULE_INFO)))
return true;
char[] classNameArray = className.toCharArray();
// use 1.7 as the source level as there are more valid identifiers in 1.7 mode
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=376673
if (this.scanner == null)
this.scanner = new Scanner(false /* comment */, true /* whitespace */, false /* nls */,
ClassFileConstants.JDK1_7/* sourceLevel */, null/* taskTag */, null/* taskPriorities */, true /* taskCaseSensitive */);
this.scanner.setSource(classNameArray);
this.scanner.eofPosition = classNameArray.length - SuffixConstants.SUFFIX_CLASS.length;
try {
if (isIdentifier()) {
while (this.scanner.eofPosition > this.scanner.currentPosition) {
if (this.scanner.getNextChar() != '/' || this.scanner.eofPosition <= this.scanner.currentPosition) {
return false;
}
if (!isIdentifier()) return false;
}
return true;
}
} catch (InvalidInputException e) {
// invalid class name
}
return false;
}
}