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/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2016-17 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Apache BCEL" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact [email protected].
*
* 5. Products derived from this software may not be called "Apache",
* "Apache BCEL", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* .
*/
package org.aspectj.apache.bcel.classfile;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import org.aspectj.apache.bcel.Constants;
/**
* This class is derived from Attribute and represents the module
* information captured in a class file.
* http://cr.openjdk.java.net/~mr/jigsaw/spec/lang-vm.html
* http://cr.openjdk.java.net/~mr/jigsaw/spec/java-se-9-jvms-diffs.pdf 4.7.25
*
* @author Andy Clement
*/
public final class Module extends Attribute {
private static final String[] NO_MODULE_NAMES = {};
private int moduleNameIndex; // u2 module_name_index
private int moduleFlags; // u2 module_flags
private int moduleVersionIndex; // u2 module_version_index
private Require[] requires;
private Export[] exports;
private Open[] opens;
private Uses[] uses;
private Provide[] provides;
private byte[] moduleInfo;
private int ptr;
private boolean unpacked = false;
public Module(Module module) {
super(module.getTag(), module.getNameIndex(), module.getLength(), module.getConstantPool());
moduleInfo = module.getBytes();
}
public Module(int nameIndex, int length, byte[] data, ConstantPool cp) {
super(Constants.ATTR_MODULE, nameIndex, length, cp);
}
Module(int nameIndex, int length, DataInputStream stream, ConstantPool cp) throws IOException {
this(nameIndex, length, (byte[])null, cp);
moduleInfo = new byte[length];
stream.read(moduleInfo);
unpacked = false;
}
public class Require {
private final int moduleIndex;
private final int flags;
private final int versionIndex;
public Require(int moduleIndex, int flags, int versionIndex) {
this.moduleIndex = moduleIndex;
this.flags = flags;
this.versionIndex = versionIndex;
}
public String getModuleName() {
return cpool.getModuleName(moduleIndex);
}
public int getFlags() {
return flags;
}
public int getVersionIndex() {
return versionIndex;
}
public String getVersionString() {
if (versionIndex == 0) {
return null;
} else {
return cpool.getConstantUtf8(versionIndex).getValue();
}
}
public String getFlagsAsString() {
StringBuilder s = new StringBuilder();
if ((flags & Constants.MODULE_ACC_TRANSITIVE)!=0) {
s.append(" transitive");
}
if ((flags & Constants.MODULE_ACC_STATIC_PHASE)!=0) {
s.append(" static");
}
if ((flags & Constants.MODULE_ACC_SYNTHETIC)!=0) {
s.append(" synthetic");
}
if ((flags & Constants.MODULE_ACC_MANDATED)!=0) {
s.append(" mandated");
}
return s.toString();
}
public String toString() {
return "requires"+getFlagsAsString()+" "+getModuleName()+(versionIndex==0?"":" "+getVersionString());
}
}
public class Export {
private final int packageIndex;
private final int flags;
private final int[] toModuleIndices;
public Export(int packageIndex, int flags, int[] toModuleIndices) {
this.packageIndex = packageIndex;
this.flags = flags;
this.toModuleIndices = toModuleIndices;
}
public int getPackageIndex() {
return packageIndex;
}
public int getFlags() {
return flags;
}
public int[] getToModuleIndices() {
return toModuleIndices;
}
public String getPackage() {
return cpool.getPackageName(packageIndex);
}
public String getFlagsAsString() {
StringBuilder s = new StringBuilder();
if ((flags & Constants.MODULE_ACC_SYNTHETIC)!=0) {
s.append(" synthetic");
}
if ((flags & Constants.MODULE_ACC_MANDATED)!=0) {
s.append(" synthetic");
}
return s.toString();
}
public String[] getToModuleNames() {
if (toModuleIndices==null) {
return NO_MODULE_NAMES;
}
String[] toModuleNames = new String[toModuleIndices.length];
for (int i=0;i0) {
s.append(", ");
}
s.append(toModules[i]);
}
}
return s.toString().trim();
}
}
public class Open {
private final int packageIndex;
private final int flags;
private final int[] toModuleIndices;
public Open(int packageIndex, int flags, int[] toModuleIndices) {
this.packageIndex = packageIndex;
this.flags = flags;
this.toModuleIndices = toModuleIndices;
}
public int getPackageIndex() {
return packageIndex;
}
public int getFlags() {
return flags;
}
public int[] getToModuleIndices() {
return toModuleIndices;
}
public String getPackage() {
return cpool.getPackageName(packageIndex);
}
public String getFlagsAsString() {
StringBuilder s = new StringBuilder();
if ((flags & Constants.MODULE_ACC_SYNTHETIC)!=0) {
s.append(" synthetic");
}
if ((flags & Constants.MODULE_ACC_MANDATED)!=0) {
s.append(" synthetic");
}
return s.toString();
}
public String[] getToModuleNames() {
if (toModuleIndices==null) {
return NO_MODULE_NAMES;
}
String[] toModuleNames = new String[toModuleIndices.length];
for (int i=0;i0) {
s.append(", ");
}
s.append(toModules[i]);
}
}
return s.toString().trim();
}
}
public class Provide {
private final int providedTypeIndex;
private final int[] withTypeIndices;
public Provide(int providedTypeIndex, int[] withTypeIndices) {
this.providedTypeIndex = providedTypeIndex;
this.withTypeIndices = withTypeIndices;
}
public String getProvidedType() {
return cpool.getConstantString_CONSTANTClass(providedTypeIndex);
}
public int getProvidedTypeIndex() {
return providedTypeIndex;
}
public String[] getWithTypeStrings() {
String[] result = new String[withTypeIndices.length];
for (int i=0;i0) s.append(",");
s.append(withtypes[i].replace('/','.'));
}
return s.toString();
}
}
public class Uses {
private final int typeNameIndex;
public Uses(int typeNameIndex) {
this.typeNameIndex = typeNameIndex;
}
public String getTypeName() {
return cpool.getConstantString_CONSTANTClass(typeNameIndex);
}
public int getTypeNameIndex() {
return typeNameIndex;
}
public String toString() {
StringBuilder s =new StringBuilder();
s.append("uses ").append(getTypeName().replace('/', '.'));
return s.toString().trim();
}
}
private final int readInt() {
return ((moduleInfo[ptr++] & 0xFF) << 24) + ((moduleInfo[ptr++] & 0xFF) << 16)
+ ((moduleInfo[ptr++] & 0xFF) << 8) + (moduleInfo[ptr++] & 0xFF);
}
private final int readUnsignedShort() {
return ((moduleInfo[ptr++] & 0xff) << 8) + (moduleInfo[ptr++] & 0xff);
}
private final int readUnsignedShort(int offset) {
return ((moduleInfo[offset++] & 0xff) << 8) + (moduleInfo[offset] & 0xff);
}
// Format: http://cr.openjdk.java.net/~mr/jigsaw/spec/java-se-9-jvms-diffs.pdf 4.7.25
private void ensureUnpacked() {
if (!unpacked) {
ptr = 0;
moduleNameIndex = readUnsignedShort();
moduleFlags = readUnsignedShort();
moduleVersionIndex = readUnsignedShort();
int count = readUnsignedShort();
requires = new Require[count];
for (int i = 0; i < count; i++) {
requires[i] = new Require(readUnsignedShort(), readUnsignedShort(), readUnsignedShort());
}
count = readUnsignedShort();
exports = new Export[count];
for (int i = 0; i < count; i++) {
int index = readUnsignedShort();
int flags = readUnsignedShort();
int toCount = readUnsignedShort();
int[] to = new int[toCount];
for (int j = 0; j < toCount; j++) {
to[j] = readUnsignedShort();
}
exports[i] = new Export(index, flags, to);
}
count = readUnsignedShort();
opens = new Open[count];
for (int i = 0; i < count; i++) {
int index = readUnsignedShort();
int flags = readUnsignedShort();
int toCount = readUnsignedShort();
int[] to = new int[toCount];
for (int j = 0; j < toCount; j++) {
to[j] = readUnsignedShort();
}
opens[i] = new Open(index, flags, to);
}
count = readUnsignedShort();
uses = new Uses[count];
for (int i = 0; i < count; i++) {
uses[i] = new Uses(readUnsignedShort());
}
count = readUnsignedShort();
provides = new Provide[count];
for (int i = 0; i < count; i++) {
int index = readUnsignedShort();
int toCount = readUnsignedShort();
int[] to = new int[toCount];
for (int j = 0; j < toCount; j++) {
to[j] = readUnsignedShort();
}
provides[i] = new Provide(index, to);
}
unpacked = true;
}
}
@Override
public final void dump(DataOutputStream file) throws IOException {
super.dump(file);
if (!unpacked) {
file.write(moduleInfo);
} else {
file.writeShort(moduleNameIndex);
file.writeShort(moduleFlags);
file.writeShort(moduleVersionIndex);
file.writeShort(requires.length);
for (Require require : requires) {
file.writeShort(require.moduleIndex);
file.writeShort(require.flags);
file.writeShort(require.versionIndex);
}
file.writeShort(exports.length);
for (Export export : exports) {
file.writeShort(export.packageIndex);
int[] toIndices = export.toModuleIndices;
file.writeShort(toIndices.length);
for (int index : toIndices) {
file.writeShort(index);
}
}
file.writeShort(opens.length);
for (Open open : opens) {
file.writeShort(open.packageIndex);
int[] toIndices = open.toModuleIndices;
file.writeShort(toIndices.length);
for (int index : toIndices) {
file.writeShort(index);
}
}
file.writeShort(uses.length);
for (Uses use : uses) {
file.writeShort(use.getTypeNameIndex());
}
file.writeShort(provides.length);
for (Provide provide : provides) {
file.writeShort(provide.providedTypeIndex);
int[] toIndices = provide.withTypeIndices;
file.writeShort(toIndices.length);
for (int index : toIndices) {
file.writeShort(index);
}
}
}
}
public String toStringRequires() {
StringBuilder s = new StringBuilder();
s.append('#').append(requires.length);
if (requires.length > 0) {
for (Require require : requires) {
s.append(' ');
s.append(require.moduleIndex).append(':').append(require.flags);
}
}
return s.toString();
}
public String toStringExports() {
StringBuilder s = new StringBuilder();
s.append('#').append(exports.length);
if (exports.length > 0) {
for (Export export : exports) {
s.append(' ');
s.append(export.packageIndex).append(":[");
int[] toIndices = export.toModuleIndices;
for (int i = 0; i < toIndices.length; i++) {
if (i > 0)
s.append(',');
s.append(toIndices[i]);
}
s.append("]");
}
}
return s.toString();
}
public String toStringOpens() {
StringBuilder s = new StringBuilder();
s.append('#').append(opens.length);
if (opens.length > 0) {
for (Open open : opens) {
s.append(' ');
s.append(open.packageIndex).append(":[");
int[] toIndices = open.toModuleIndices;
for (int i = 0; i < toIndices.length; i++) {
if (i > 0)
s.append(',');
s.append(toIndices[i]);
}
s.append("]");
}
}
return s.toString();
}
public String toStringUses() {
StringBuilder s = new StringBuilder();
s.append('#').append(uses.length);
if (uses.length > 0) {
for (Uses use : uses) {
s.append(' ');
s.append(use.getTypeName());
}
}
return s.toString();
}
public String toStringProvides() {
StringBuilder s = new StringBuilder();
s.append('#').append(provides.length);
if (provides.length > 0) {
for (Provide provide : provides) {
s.append(' ');
s.append(provide.providedTypeIndex).append(":[");
int[] indices = provide.withTypeIndices;
for (int i = 0; i < indices.length; i++) {
if (i > 0)
s.append(',');
s.append(indices[i]);
}
s.append("]");
}
}
return s.toString();
}
@Override
public final String toString() {
StringBuilder s = new StringBuilder();
ensureUnpacked();
s.append("Module(");
if (requires.length != 0) {
s.append("requires=");
s.append(toStringRequires());
s.append(" ");
}
if (exports.length != 0) {
s.append("exports=");
s.append(toStringExports());
s.append(" ");
}
if (opens.length != 0) {
s.append("opens=");
s.append(toStringOpens());
s.append(" ");
}
if (uses.length != 0) {
s.append("uses=");
s.append(toStringUses());
s.append(" ");
}
if (provides.length != 0) {
s.append("provides=");
s.append(toStringProvides());
s.append(" ");
}
return s.toString().trim()+")";
}
/**
* @return deep copy of this attribute //
*/
// @Override
// public Attribute copy(ConstantPool constant_pool) {
// return (Module) clone();
// }
@Override
public void accept(ClassVisitor v) {
v.visitModule(this);
}
public Require[] getRequires() {
ensureUnpacked();
return requires;
}
public String[] getRequiredModuleNames() {
ensureUnpacked();
String[] results = new String[requires.length];
for (int i=0;i
