1.1 --- a/javap/src/main/java/sun/tools/javap/StackMapTableData.java Fri Nov 16 08:06:48 2012 +0100
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,126 +0,0 @@
1.4 -/*
1.5 - * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
1.6 - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 - *
1.8 - * This code is free software; you can redistribute it and/or modify it
1.9 - * under the terms of the GNU General Public License version 2 only, as
1.10 - * published by the Free Software Foundation. Oracle designates this
1.11 - * particular file as subject to the "Classpath" exception as provided
1.12 - * by Oracle in the LICENSE file that accompanied this code.
1.13 - *
1.14 - * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 - * version 2 for more details (a copy is included in the LICENSE file that
1.18 - * accompanied this code).
1.19 - *
1.20 - * You should have received a copy of the GNU General Public License version
1.21 - * 2 along with this work; if not, write to the Free Software Foundation,
1.22 - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 - *
1.24 - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 - * or visit www.oracle.com if you need additional information or have any
1.26 - * questions.
1.27 - */
1.28 -
1.29 -
1.30 -package sun.tools.javap;
1.31 -
1.32 -import java.io.*;
1.33 -
1.34 -import static sun.tools.javap.RuntimeConstants.*;
1.35 -
1.36 -/* represents one entry of StackMapTable attribute
1.37 - */
1.38 -class StackMapTableData {
1.39 - final int frameType;
1.40 - int offsetDelta;
1.41 -
1.42 - StackMapTableData(int frameType) {
1.43 - this.frameType = frameType;
1.44 - }
1.45 -
1.46 - static class SameFrame extends StackMapTableData {
1.47 - SameFrame(int frameType, int offsetDelta) {
1.48 - super(frameType);
1.49 - this.offsetDelta = offsetDelta;
1.50 - }
1.51 - }
1.52 -
1.53 - static class SameLocals1StackItem extends StackMapTableData {
1.54 - final int[] stack;
1.55 - SameLocals1StackItem(int frameType, int offsetDelta, int[] stack) {
1.56 - super(frameType);
1.57 - this.offsetDelta = offsetDelta;
1.58 - this.stack = stack;
1.59 - }
1.60 - }
1.61 -
1.62 - static class ChopFrame extends StackMapTableData {
1.63 - ChopFrame(int frameType, int offsetDelta) {
1.64 - super(frameType);
1.65 - this.offsetDelta = offsetDelta;
1.66 - }
1.67 - }
1.68 -
1.69 - static class AppendFrame extends StackMapTableData {
1.70 - final int[] locals;
1.71 - AppendFrame(int frameType, int offsetDelta, int[] locals) {
1.72 - super(frameType);
1.73 - this.offsetDelta = offsetDelta;
1.74 - this.locals = locals;
1.75 - }
1.76 - }
1.77 -
1.78 - static class FullFrame extends StackMapTableData {
1.79 - final int[] locals;
1.80 - final int[] stack;
1.81 - FullFrame(int offsetDelta, int[] locals, int[] stack) {
1.82 - super(FULL_FRAME);
1.83 - this.offsetDelta = offsetDelta;
1.84 - this.locals = locals;
1.85 - this.stack = stack;
1.86 - }
1.87 - }
1.88 -
1.89 - static StackMapTableData getInstance(DataInputStream in, MethodData method)
1.90 - throws IOException {
1.91 - int frameType = in.readUnsignedByte();
1.92 -
1.93 - if (frameType < SAME_FRAME_BOUND) {
1.94 - // same_frame
1.95 - return new SameFrame(frameType, frameType);
1.96 - } else if (SAME_FRAME_BOUND <= frameType && frameType < SAME_LOCALS_1_STACK_ITEM_BOUND) {
1.97 - // same_locals_1_stack_item_frame
1.98 - // read additional single stack element
1.99 - return new SameLocals1StackItem(frameType,
1.100 - (frameType - SAME_FRAME_BOUND),
1.101 - StackMapData.readTypeArray(in, 1, method));
1.102 - } else if (frameType == SAME_LOCALS_1_STACK_ITEM_EXTENDED) {
1.103 - // same_locals_1_stack_item_extended
1.104 - return new SameLocals1StackItem(frameType,
1.105 - in.readUnsignedShort(),
1.106 - StackMapData.readTypeArray(in, 1, method));
1.107 - } else if (SAME_LOCALS_1_STACK_ITEM_EXTENDED < frameType && frameType < SAME_FRAME_EXTENDED) {
1.108 - // chop_frame or same_frame_extended
1.109 - return new ChopFrame(frameType, in.readUnsignedShort());
1.110 - } else if (frameType == SAME_FRAME_EXTENDED) {
1.111 - // chop_frame or same_frame_extended
1.112 - return new SameFrame(frameType, in.readUnsignedShort());
1.113 - } else if (SAME_FRAME_EXTENDED < frameType && frameType < FULL_FRAME) {
1.114 - // append_frame
1.115 - return new AppendFrame(frameType, in.readUnsignedShort(),
1.116 - StackMapData.readTypeArray(in, frameType - SAME_FRAME_EXTENDED, method));
1.117 - } else if (frameType == FULL_FRAME) {
1.118 - // full_frame
1.119 - int offsetDelta = in.readUnsignedShort();
1.120 - int locals_size = in.readUnsignedShort();
1.121 - int[] locals = StackMapData.readTypeArray(in, locals_size, method);
1.122 - int stack_size = in.readUnsignedShort();
1.123 - int[] stack = StackMapData.readTypeArray(in, stack_size, method);
1.124 - return new FullFrame(offsetDelta, locals, stack);
1.125 - } else {
1.126 - throw new ClassFormatError("unrecognized frame_type in StackMapTable");
1.127 - }
1.128 - }
1.129 -}