langtools/src/jdk.compiler/share/classes/com/sun/tools/classfile/Code_attribute.java
changeset 30848 c275389a3680
parent 30842 b02fa8bb730c
parent 30847 9385b9c8506b
child 30849 fcfa8eb95c23
--- 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;
-    }
-}