com.redhat.ceylon.langtools.classfile.Module_attribute Maven / Gradle / Ivy
/*
* Copyright (c) 2007, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package com.redhat.ceylon.langtools.classfile;
import java.io.IOException;
/**
* See Jigsaw.
*
* This is NOT part of any supported API.
* If you write code that depends on this, you do so at your own risk.
* This code and its internal interfaces are subject to change or
* deletion without notice.
*/
public class Module_attribute extends Attribute {
public static final int ACC_PUBLIC = 0x20;
public static final int ACC_SYNTHETIC = 0x1000;
public static final int ACC_MANDATED = 0x8000;
Module_attribute(ClassReader cr, int name_index, int length) throws IOException {
super(name_index, length);
requires_count = cr.readUnsignedShort();
requires = new RequiresEntry[requires_count];
for (int i = 0; i < requires_count; i++)
requires[i] = new RequiresEntry(cr);
exports_count = cr.readUnsignedShort();
exports = new ExportsEntry[exports_count];
for (int i = 0; i < exports_count; i++)
exports[i] = new ExportsEntry(cr);
uses_count = cr.readUnsignedShort();
uses_index = new int[uses_count];
for (int i = 0; i < uses_count; i++)
uses_index[i] = cr.readUnsignedShort();
provides_count = cr.readUnsignedShort();
provides = new ProvidesEntry[provides_count];
for (int i = 0; i < provides_count; i++)
provides[i] = new ProvidesEntry(cr);
}
public Module_attribute(int name_index,
RequiresEntry[] requires,
ExportsEntry[] exports,
int[] uses,
ProvidesEntry[] provides) {
super(name_index, 2);
requires_count = requires.length;
this.requires = requires;
exports_count = exports.length;
this.exports = exports;
uses_count = uses.length;
this.uses_index = uses;
provides_count = provides.length;
this.provides = provides;
}
public String getUses(int index, ConstantPool constant_pool) throws ConstantPoolException {
int i = uses_index[index];
return constant_pool.getClassInfo(i).getName();
}
@Override
public R accept(Visitor visitor, D data) {
return visitor.visitModule(this, data);
}
public final int requires_count;
public final RequiresEntry[] requires;
public final int exports_count;
public final ExportsEntry[] exports;
public final int uses_count;
public final int[] uses_index;
public final int provides_count;
public final ProvidesEntry[] provides;
public static class RequiresEntry {
RequiresEntry(ClassReader cr) throws IOException {
requires_index = cr.readUnsignedShort();
requires_flags = cr.readUnsignedShort();
}
public RequiresEntry(int index, int flags) {
this.requires_index = index;
this.requires_flags = flags;
}
public String getRequires(int index, ConstantPool constant_pool) throws ConstantPoolException {
return constant_pool.getUTF8Value(requires_index);
}
public static final int length = 4;
public final int requires_index;
public final int requires_flags;
}
public static class ExportsEntry {
ExportsEntry(ClassReader cr) throws IOException {
exports_index = cr.readUnsignedShort();
exports_to_count = cr.readUnsignedShort();
exports_to_index = new int[exports_to_count];
for (int i = 0; i < exports_to_count; i++)
exports_to_index[i] = cr.readUnsignedShort();
}
public ExportsEntry(int index, int[] to) {
this.exports_index = index;
this.exports_to_count = to.length;
this.exports_to_index = to;
}
public int length() {
return 4 + 2 * exports_to_index.length;
}
public final int exports_index;
public final int exports_to_count;
public final int[] exports_to_index;
}
public static class ProvidesEntry {
ProvidesEntry(ClassReader cr) throws IOException {
provides_index = cr.readUnsignedShort();
with_index = cr.readUnsignedShort();
}
public ProvidesEntry(int provides, int with) {
this.provides_index = provides;
this.with_index = with;
}
public static final int length = 4;
public final int provides_index;
public final int with_index;
}
}