org.eclipse.jdt.internal.core.util.PackageVisibilityInfo Maven / Gradle / Ivy
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/*******************************************************************************
* Copyright (c) 2017 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.util;
import org.eclipse.jdt.core.compiler.CharOperation;
import org.eclipse.jdt.core.util.ClassFormatException;
import org.eclipse.jdt.core.util.IConstantPool;
import org.eclipse.jdt.core.util.IConstantPoolConstant;
import org.eclipse.jdt.core.util.IConstantPoolEntry;
import org.eclipse.jdt.core.util.IConstantPoolEntry3;
import org.eclipse.jdt.core.util.IPackageVisibilityInfo;
public class PackageVisibilityInfo extends ClassFileStruct implements IPackageVisibilityInfo {
private final int index;
private final char[] packageName;
private final int flags;
private final int targetsCount;
private int[] targetModuleIndices;
private char[][] targetModuleNames;
public PackageVisibilityInfo(byte[] classFileBytes, IConstantPool constantPool, int offset) throws ClassFormatException {
int readOffset = 0;
this.index = u2At(classFileBytes, readOffset, offset);
readOffset += 2;
IConstantPoolEntry constantPoolEntry = constantPool.decodeEntry(this.index);
if (constantPoolEntry.getKind() != IConstantPoolConstant.CONSTANT_Package) {
throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY);
}
char[] tmp = ((IConstantPoolEntry3) constantPoolEntry).getPackageName();
this.packageName = tmp != null ? tmp : CharOperation.NO_CHAR;
this.flags = u2At(classFileBytes, readOffset, offset);
readOffset += 2;
this.targetsCount = u2At(classFileBytes, readOffset, offset);
readOffset += 2;
if (this.targetsCount != 0) {
this.targetModuleIndices = new int[this.targetsCount];
this.targetModuleNames = new char[this.targetsCount][];
for (int i = 0; i < this.targetsCount; i++) {
this.targetModuleIndices[i] = u2At(classFileBytes, readOffset, offset);
readOffset += 2;
constantPoolEntry = constantPool.decodeEntry(this.targetModuleIndices[i]);
if (constantPoolEntry.getKind() != IConstantPoolConstant.CONSTANT_Module) {
throw new ClassFormatException(ClassFormatException.INVALID_CONSTANT_POOL_ENTRY);
}
tmp = ((IConstantPoolEntry3) constantPoolEntry).getModuleName();
this.targetModuleNames[i] = tmp != null ? tmp : CharOperation.NO_CHAR;
}
} else {
this.targetModuleIndices = new int[0];
this.targetModuleNames = CharOperation.NO_CHAR_CHAR;
}
}
@Override
public int getIndex() {
return this.index;
}
@Override
public char[] getPackageName() {
return this.packageName;
}
@Override
public int getFlags() {
return this.flags;
}
@Override
public int getTargetsCount() {
return this.targetsCount;
}
@Override
public int[] getTargetModuleIndices() {
return this.targetModuleIndices;
}
@Override
public char[][] getTargetModuleNames() {
return this.targetModuleNames;
}
}