langtools/src/jdk.compiler/share/classes/com/sun/tools/classfile/Code_attribute.java
--- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/classfile/Code_attribute.java Thu May 28 16:13:55 2015 -0700
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,159 +0,0 @@
-/*
- * Copyright (c) 2007, 2013, 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
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package com.sun.tools.classfile;
-
-import java.io.IOException;
-import java.util.Iterator;
-import java.util.NoSuchElementException;
-
-/**
- * See JVMS, section 4.8.3.
- *
- * <p><b>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.</b>
- */
-public class Code_attribute extends Attribute {
- public static class InvalidIndex extends AttributeException {
- private static final long serialVersionUID = -8904527774589382802L;
- InvalidIndex(int index) {
- this.index = index;
- }
-
- @Override
- public String getMessage() {
- // i18n
- return "invalid index " + index + " in Code attribute";
- }
-
- public final int index;
- }
-
- Code_attribute(ClassReader cr, int name_index, int length)
- throws IOException, ConstantPoolException {
- super(name_index, length);
- max_stack = cr.readUnsignedShort();
- max_locals = cr.readUnsignedShort();
- code_length = cr.readInt();
- code = new byte[code_length];
- cr.readFully(code);
- exception_table_length = cr.readUnsignedShort();
- exception_table = new Exception_data[exception_table_length];
- for (int i = 0; i < exception_table_length; i++)
- exception_table[i] = new Exception_data(cr);
- attributes = new Attributes(cr);
- }
-
- public int getByte(int offset) throws InvalidIndex {
- if (offset < 0 || offset >= code.length)
- throw new InvalidIndex(offset);
- return code[offset];
- }
-
- public int getUnsignedByte(int offset) throws InvalidIndex {
- if (offset < 0 || offset >= code.length)
- throw new InvalidIndex(offset);
- return code[offset] & 0xff;
- }
-
- public int getShort(int offset) throws InvalidIndex {
- if (offset < 0 || offset + 1 >= code.length)
- throw new InvalidIndex(offset);
- return (code[offset] << 8) | (code[offset + 1] & 0xFF);
- }
-
- public int getUnsignedShort(int offset) throws InvalidIndex {
- if (offset < 0 || offset + 1 >= code.length)
- throw new InvalidIndex(offset);
- return ((code[offset] << 8) | (code[offset + 1] & 0xFF)) & 0xFFFF;
- }
-
- public int getInt(int offset) throws InvalidIndex {
- if (offset < 0 || offset + 3 >= code.length)
- throw new InvalidIndex(offset);
- return (getShort(offset) << 16) | (getShort(offset + 2) & 0xFFFF);
- }
-
- public <R, D> R accept(Visitor<R, D> visitor, D data) {
- return visitor.visitCode(this, data);
- }
-
- public Iterable<Instruction> getInstructions() {
- return new Iterable<Instruction>() {
- public Iterator<Instruction> iterator() {
- return new Iterator<Instruction>() {
-
- public boolean hasNext() {
- return (next != null);
- }
-
- public Instruction next() {
- if (next == null)
- throw new NoSuchElementException();
-
- current = next;
- pc += current.length();
- next = (pc < code.length ? new Instruction(code, pc) : null);
- return current;
- }
-
- public void remove() {
- throw new UnsupportedOperationException("Not supported.");
- }
-
- Instruction current = null;
- int pc = 0;
- Instruction next = new Instruction(code, pc);
-
- };
- }
-
- };
- }
-
- public final int max_stack;
- public final int max_locals;
- public final int code_length;
- public final byte[] code;
- public final int exception_table_length;
- public final Exception_data[] exception_table;
- public final Attributes attributes;
-
- public static class Exception_data {
- Exception_data(ClassReader cr) throws IOException {
- start_pc = cr.readUnsignedShort();
- end_pc = cr.readUnsignedShort();
- handler_pc = cr.readUnsignedShort();
- catch_type = cr.readUnsignedShort();
- }
-
- public final int start_pc;
- public final int end_pc;
- public final int handler_pc;
- public final int catch_type;
- }
-}