| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.sun.org.apache.bcel.internal.classfile; |
| |
| import java.io.DataInput; |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| |
| import com.sun.org.apache.bcel.internal.Const; |
| |
| /** |
| * This class represents an entry in the exports table of the Module attribute. |
| * Each entry describes a package which may open the parent module. |
| * |
| * @see Module |
| * @since 6.4.0 |
| */ |
| public final class ModuleExports implements Cloneable, Node { |
| |
| private final int exports_index; // points to CONSTANT_Package_info |
| private final int exports_flags; |
| private final int exports_to_count; |
| private final int[] exports_to_index; // points to CONSTANT_Module_info |
| |
| |
| /** |
| * Construct object from file stream. |
| * |
| * @param file Input stream |
| * @throws IOException if an I/O Exception occurs in readUnsignedShort |
| */ |
| ModuleExports(final DataInput file) throws IOException { |
| exports_index = file.readUnsignedShort(); |
| exports_flags = file.readUnsignedShort(); |
| exports_to_count = file.readUnsignedShort(); |
| exports_to_index = new int[exports_to_count]; |
| for (int i = 0; i < exports_to_count; i++) { |
| exports_to_index[i] = file.readUnsignedShort(); |
| } |
| } |
| |
| |
| /** |
| * Called by objects that are traversing the nodes of the tree implicitely |
| * defined by the contents of a Java class. I.e., the hierarchy of methods, |
| * fields, attributes, etc. spawns a tree of objects. |
| * |
| * @param v Visitor object |
| */ |
| @Override |
| public void accept( final Visitor v ) { |
| v.visitModuleExports(this); |
| } |
| |
| // TODO add more getters and setters? |
| |
| /** |
| * Dump table entry to file stream in binary format. |
| * |
| * @param file Output file stream |
| * @throws IOException if an I/O Exception occurs in writeShort |
| */ |
| public void dump( final DataOutputStream file ) throws IOException { |
| file.writeShort(exports_index); |
| file.writeShort(exports_flags); |
| file.writeShort(exports_to_count); |
| for (final int entry : exports_to_index) { |
| file.writeShort(entry); |
| } |
| } |
| |
| |
| /** |
| * @return String representation |
| */ |
| @Override |
| public String toString() { |
| return "exports(" + exports_index + ", " + exports_flags + ", " + exports_to_count + ", ...)"; |
| } |
| |
| |
| /** |
| * @return Resolved string representation |
| */ |
| public String toString( final ConstantPool constant_pool ) { |
| final StringBuilder buf = new StringBuilder(); |
| final String package_name = constant_pool.constantToString(exports_index, Const.CONSTANT_Package); |
| buf.append(Utility.compactClassName(package_name, false)); |
| buf.append(", ").append(String.format("%04x", exports_flags)); |
| buf.append(", to(").append(exports_to_count).append("):\n"); |
| for (final int index : exports_to_index) { |
| final String module_name = constant_pool.getConstantString(index, Const.CONSTANT_Module); |
| buf.append(" ").append(Utility.compactClassName(module_name, false)).append("\n"); |
| } |
| return buf.substring(0, buf.length()-1); // remove the last newline |
| } |
| |
| |
| /** |
| * @return deep copy of this object |
| */ |
| public ModuleExports copy() { |
| try { |
| return (ModuleExports) clone(); |
| } catch (final CloneNotSupportedException e) { |
| // TODO should this throw? |
| } |
| return null; |
| } |
| } |