/* |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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/* |
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* This file is available under and governed by the GNU General Public |
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* License version 2 only, as published by the Free Software Foundation. |
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* However, the following notice accompanied the original version of this |
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* file: |
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* |
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* ASM: a very small and fast Java bytecode manipulation framework |
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* Copyright (c) 2000-2011 INRIA, France Telecom |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. Neither the name of the copyright holders nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
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* THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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package jdk.internal.org.objectweb.asm.util; |
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import java.io.PrintWriter; |
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import java.util.ArrayList; |
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import java.util.List; |
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import jdk.internal.org.objectweb.asm.Attribute; |
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import jdk.internal.org.objectweb.asm.Handle; |
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import jdk.internal.org.objectweb.asm.Label; |
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import jdk.internal.org.objectweb.asm.Opcodes; |
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import jdk.internal.org.objectweb.asm.TypePath; |
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/** |
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* An abstract converter from visit events to text. |
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* |
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* @author Eric Bruneton |
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*/ |
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public abstract class Printer { |
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/** |
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* The names of the Java Virtual Machine opcodes. |
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*/ |
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public static final String[] OPCODES; |
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/** |
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* The names of the for <code>operand</code> parameter values of the |
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* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitIntInsn} method when |
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* <code>opcode</code> is <code>NEWARRAY</code>. |
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*/ |
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public static final String[] TYPES; |
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/** |
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* The names of the <code>tag</code> field values for |
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* {@link jdk.internal.org.objectweb.asm.Handle}. |
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*/ |
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public static final String[] HANDLE_TAG; |
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static { |
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String s = "NOP,ACONST_NULL,ICONST_M1,ICONST_0,ICONST_1,ICONST_2," |
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+ "ICONST_3,ICONST_4,ICONST_5,LCONST_0,LCONST_1,FCONST_0," |
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+ "FCONST_1,FCONST_2,DCONST_0,DCONST_1,BIPUSH,SIPUSH,LDC,,," |
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+ "ILOAD,LLOAD,FLOAD,DLOAD,ALOAD,,,,,,,,,,,,,,,,,,,,,IALOAD," |
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+ "LALOAD,FALOAD,DALOAD,AALOAD,BALOAD,CALOAD,SALOAD,ISTORE," |
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+ "LSTORE,FSTORE,DSTORE,ASTORE,,,,,,,,,,,,,,,,,,,,,IASTORE," |
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+ "LASTORE,FASTORE,DASTORE,AASTORE,BASTORE,CASTORE,SASTORE,POP," |
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+ "POP2,DUP,DUP_X1,DUP_X2,DUP2,DUP2_X1,DUP2_X2,SWAP,IADD,LADD," |
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+ "FADD,DADD,ISUB,LSUB,FSUB,DSUB,IMUL,LMUL,FMUL,DMUL,IDIV,LDIV," |
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+ "FDIV,DDIV,IREM,LREM,FREM,DREM,INEG,LNEG,FNEG,DNEG,ISHL,LSHL," |
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+ "ISHR,LSHR,IUSHR,LUSHR,IAND,LAND,IOR,LOR,IXOR,LXOR,IINC,I2L," |
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+ "I2F,I2D,L2I,L2F,L2D,F2I,F2L,F2D,D2I,D2L,D2F,I2B,I2C,I2S,LCMP," |
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+ "FCMPL,FCMPG,DCMPL,DCMPG,IFEQ,IFNE,IFLT,IFGE,IFGT,IFLE," |
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+ "IF_ICMPEQ,IF_ICMPNE,IF_ICMPLT,IF_ICMPGE,IF_ICMPGT,IF_ICMPLE," |
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+ "IF_ACMPEQ,IF_ACMPNE,GOTO,JSR,RET,TABLESWITCH,LOOKUPSWITCH," |
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+ "IRETURN,LRETURN,FRETURN,DRETURN,ARETURN,RETURN,GETSTATIC," |
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+ "PUTSTATIC,GETFIELD,PUTFIELD,INVOKEVIRTUAL,INVOKESPECIAL," |
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+ "INVOKESTATIC,INVOKEINTERFACE,INVOKEDYNAMIC,NEW,NEWARRAY," |
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+ "ANEWARRAY,ARRAYLENGTH,ATHROW,CHECKCAST,INSTANCEOF," |
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+ "MONITORENTER,MONITOREXIT,,MULTIANEWARRAY,IFNULL,IFNONNULL,"; |
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OPCODES = new String[200]; |
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int i = 0; |
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int j = 0; |
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int l; |
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while ((l = s.indexOf(',', j)) > 0) { |
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OPCODES[i++] = j + 1 == l ? null : s.substring(j, l); |
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j = l + 1; |
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} |
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s = "T_BOOLEAN,T_CHAR,T_FLOAT,T_DOUBLE,T_BYTE,T_SHORT,T_INT,T_LONG,"; |
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TYPES = new String[12]; |
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j = 0; |
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i = 4; |
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while ((l = s.indexOf(',', j)) > 0) { |
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TYPES[i++] = s.substring(j, l); |
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j = l + 1; |
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} |
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s = "H_GETFIELD,H_GETSTATIC,H_PUTFIELD,H_PUTSTATIC," |
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+ "H_INVOKEVIRTUAL,H_INVOKESTATIC,H_INVOKESPECIAL," |
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+ "H_NEWINVOKESPECIAL,H_INVOKEINTERFACE,"; |
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HANDLE_TAG = new String[10]; |
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j = 0; |
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i = 1; |
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while ((l = s.indexOf(',', j)) > 0) { |
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HANDLE_TAG[i++] = s.substring(j, l); |
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j = l + 1; |
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} |
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} |
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/** |
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* The ASM API version implemented by this class. The value of this field |
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* must be one of {@link Opcodes#ASM4} or {@link Opcodes#ASM5}. |
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*/ |
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protected final int api; |
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/** |
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* A buffer that can be used to create strings. |
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*/ |
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protected final StringBuffer buf; |
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/** |
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* The text to be printed. Since the code of methods is not necessarily |
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* visited in sequential order, one method after the other, but can be |
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* interlaced (some instructions from method one, then some instructions |
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* from method two, then some instructions from method one again...), it is |
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* not possible to print the visited instructions directly to a sequential |
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* stream. A class is therefore printed in a two steps process: a string |
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* tree is constructed during the visit, and printed to a sequential stream |
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* at the end of the visit. This string tree is stored in this field, as a |
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* string list that can contain other string lists, which can themselves |
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* contain other string lists, and so on. |
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*/ |
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public final List<Object> text; |
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/** |
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* Constructs a new {@link Printer}. |
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*/ |
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protected Printer(final int api) { |
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this.api = api; |
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this.buf = new StringBuffer(); |
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this.text = new ArrayList<Object>(); |
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} |
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/** |
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* Class header. See {@link jdk.internal.org.objectweb.asm.ClassVisitor#visit}. |
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*/ |
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public abstract void visit(final int version, final int access, |
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final String name, final String signature, final String superName, |
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final String[] interfaces); |
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/** |
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* Class source. See {@link jdk.internal.org.objectweb.asm.ClassVisitor#visitSource}. |
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*/ |
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public abstract void visitSource(final String file, final String debug); |
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/** |
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* Class outer class. See |
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* {@link jdk.internal.org.objectweb.asm.ClassVisitor#visitOuterClass}. |
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*/ |
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public abstract void visitOuterClass(final String owner, final String name, |
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final String desc); |
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/** |
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* Class annotation. See |
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* {@link jdk.internal.org.objectweb.asm.ClassVisitor#visitAnnotation}. |
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*/ |
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public abstract Printer visitClassAnnotation(final String desc, |
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final boolean visible); |
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/** |
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* Class type annotation. See |
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* {@link jdk.internal.org.objectweb.asm.ClassVisitor#visitTypeAnnotation}. |
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*/ |
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public Printer visitClassTypeAnnotation(final int typeRef, |
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final TypePath typePath, final String desc, final boolean visible) { |
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throw new RuntimeException("Must be overriden"); |
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} |
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/** |
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* Class attribute. See |
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* {@link jdk.internal.org.objectweb.asm.ClassVisitor#visitAttribute}. |
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*/ |
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public abstract void visitClassAttribute(final Attribute attr); |
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/** |
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* Class inner name. See |
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* {@link jdk.internal.org.objectweb.asm.ClassVisitor#visitInnerClass}. |
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*/ |
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public abstract void visitInnerClass(final String name, |
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final String outerName, final String innerName, final int access); |
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/** |
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* Class field. See {@link jdk.internal.org.objectweb.asm.ClassVisitor#visitField}. |
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*/ |
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public abstract Printer visitField(final int access, final String name, |
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final String desc, final String signature, final Object value); |
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/** |
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* Class method. See {@link jdk.internal.org.objectweb.asm.ClassVisitor#visitMethod}. |
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*/ |
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public abstract Printer visitMethod(final int access, final String name, |
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final String desc, final String signature, final String[] exceptions); |
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/** |
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* Class end. See {@link jdk.internal.org.objectweb.asm.ClassVisitor#visitEnd}. |
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*/ |
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public abstract void visitClassEnd(); |
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// ------------------------------------------------------------------------ |
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// Annotations |
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// ------------------------------------------------------------------------ |
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/** |
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* Annotation value. See {@link jdk.internal.org.objectweb.asm.AnnotationVisitor#visit}. |
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*/ |
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public abstract void visit(final String name, final Object value); |
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/** |
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* Annotation enum value. See |
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* {@link jdk.internal.org.objectweb.asm.AnnotationVisitor#visitEnum}. |
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*/ |
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public abstract void visitEnum(final String name, final String desc, |
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final String value); |
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/** |
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* Nested annotation value. See |
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* {@link jdk.internal.org.objectweb.asm.AnnotationVisitor#visitAnnotation}. |
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*/ |
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public abstract Printer visitAnnotation(final String name, final String desc); |
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/** |
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* Annotation array value. See |
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* {@link jdk.internal.org.objectweb.asm.AnnotationVisitor#visitArray}. |
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*/ |
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public abstract Printer visitArray(final String name); |
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/** |
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* Annotation end. See {@link jdk.internal.org.objectweb.asm.AnnotationVisitor#visitEnd}. |
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*/ |
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public abstract void visitAnnotationEnd(); |
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// ------------------------------------------------------------------------ |
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// Fields |
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// ------------------------------------------------------------------------ |
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/** |
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* Field annotation. See |
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* {@link jdk.internal.org.objectweb.asm.FieldVisitor#visitAnnotation}. |
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*/ |
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public abstract Printer visitFieldAnnotation(final String desc, |
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final boolean visible); |
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/** |
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* Field type annotation. See |
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* {@link jdk.internal.org.objectweb.asm.FieldVisitor#visitTypeAnnotation}. |
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*/ |
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public Printer visitFieldTypeAnnotation(final int typeRef, |
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final TypePath typePath, final String desc, final boolean visible) { |
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throw new RuntimeException("Must be overriden"); |
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} |
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/** |
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* Field attribute. See |
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* {@link jdk.internal.org.objectweb.asm.FieldVisitor#visitAttribute}. |
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*/ |
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public abstract void visitFieldAttribute(final Attribute attr); |
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/** |
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* Field end. See {@link jdk.internal.org.objectweb.asm.FieldVisitor#visitEnd}. |
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*/ |
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public abstract void visitFieldEnd(); |
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// ------------------------------------------------------------------------ |
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// Methods |
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// ------------------------------------------------------------------------ |
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/** |
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* Method parameter. See |
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* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitParameter(String, int)}. |
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*/ |
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public void visitParameter(String name, int access) { |
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throw new RuntimeException("Must be overriden"); |
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} |
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/** |
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* Method default annotation. See |
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* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitAnnotationDefault}. |
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*/ |
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public abstract Printer visitAnnotationDefault(); |
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/** |
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* Method annotation. See |
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* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitAnnotation}. |
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*/ |
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public abstract Printer visitMethodAnnotation(final String desc, |
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final boolean visible); |
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/** |
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* Method type annotation. See |
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* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitTypeAnnotation}. |
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*/ |
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public Printer visitMethodTypeAnnotation(final int typeRef, |
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final TypePath typePath, final String desc, final boolean visible) { |
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throw new RuntimeException("Must be overriden"); |
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} |
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/** |
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* Method parameter annotation. See |
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* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitParameterAnnotation}. |
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*/ |
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public abstract Printer visitParameterAnnotation(final int parameter, |
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final String desc, final boolean visible); |
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/** |
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* Method attribute. See |
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* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitAttribute}. |
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*/ |
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public abstract void visitMethodAttribute(final Attribute attr); |
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/** |
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* Method start. See {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitCode}. |
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*/ |
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public abstract void visitCode(); |
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/** |
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* Method stack frame. See |
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* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitFrame}. |
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*/ |
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public abstract void visitFrame(final int type, final int nLocal, |
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final Object[] local, final int nStack, final Object[] stack); |
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/** |
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* Method instruction. See {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitInsn} |
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* . |
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*/ |
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public abstract void visitInsn(final int opcode); |
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/** |
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* Method instruction. See |
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* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitIntInsn}. |
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*/ |
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public abstract void visitIntInsn(final int opcode, final int operand); |
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/** |
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* Method instruction. See |
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* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitVarInsn}. |
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*/ |
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public abstract void visitVarInsn(final int opcode, final int var); |
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/** |
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* Method instruction. See |
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* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitTypeInsn}. |
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*/ |
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public abstract void visitTypeInsn(final int opcode, final String type); |
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/** |
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* Method instruction. See |
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* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitFieldInsn}. |
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*/ |
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public abstract void visitFieldInsn(final int opcode, final String owner, |
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final String name, final String desc); |
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/** |
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* Method instruction. See |
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* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitMethodInsn}. |
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*/ |
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@Deprecated |
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public void visitMethodInsn(final int opcode, final String owner, |
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final String name, final String desc) { |
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if (api >= Opcodes.ASM5) { |
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boolean itf = opcode == Opcodes.INVOKEINTERFACE; |
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visitMethodInsn(opcode, owner, name, desc, itf); |
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return; |
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} |
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throw new RuntimeException("Must be overriden"); |
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} |
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/** |
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* Method instruction. See |
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* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitMethodInsn}. |
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*/ |
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public void visitMethodInsn(final int opcode, final String owner, |
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final String name, final String desc, final boolean itf) { |
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if (api < Opcodes.ASM5) { |
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if (itf != (opcode == Opcodes.INVOKEINTERFACE)) { |
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throw new IllegalArgumentException( |
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"INVOKESPECIAL/STATIC on interfaces require ASM 5"); |
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} |
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visitMethodInsn(opcode, owner, name, desc); |
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return; |
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} |
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throw new RuntimeException("Must be overriden"); |
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} |
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/** |
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* Method instruction. See |
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* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitInvokeDynamicInsn}. |
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*/ |
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public abstract void visitInvokeDynamicInsn(String name, String desc, |
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Handle bsm, Object... bsmArgs); |
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/** |
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* Method instruction. See |
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* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitJumpInsn}. |
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*/ |
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public abstract void visitJumpInsn(final int opcode, final Label label); |
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/** |
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* Method label. See {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitLabel}. |
|
*/ |
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public abstract void visitLabel(final Label label); |
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/** |
|
* Method instruction. See |
|
* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitLdcInsn}. |
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*/ |
|
public abstract void visitLdcInsn(final Object cst); |
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/** |
|
* Method instruction. See |
|
* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitIincInsn}. |
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*/ |
|
public abstract void visitIincInsn(final int var, final int increment); |
|
/** |
|
* Method instruction. See |
|
* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitTableSwitchInsn}. |
|
*/ |
|
public abstract void visitTableSwitchInsn(final int min, final int max, |
|
final Label dflt, final Label... labels); |
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/** |
|
* Method instruction. See |
|
* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitLookupSwitchInsn}. |
|
*/ |
|
public abstract void visitLookupSwitchInsn(final Label dflt, |
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final int[] keys, final Label[] labels); |
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/** |
|
* Method instruction. See |
|
* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitMultiANewArrayInsn}. |
|
*/ |
|
public abstract void visitMultiANewArrayInsn(final String desc, |
|
final int dims); |
|
/** |
|
* Instruction type annotation. See |
|
* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitInsnAnnotation}. |
|
*/ |
|
public Printer visitInsnAnnotation(final int typeRef, |
|
final TypePath typePath, final String desc, final boolean visible) { |
|
throw new RuntimeException("Must be overriden"); |
|
} |
|
/** |
|
* Method exception handler. See |
|
* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitTryCatchBlock}. |
|
*/ |
|
public abstract void visitTryCatchBlock(final Label start, final Label end, |
|
final Label handler, final String type); |
|
/** |
|
* Try catch block type annotation. See |
|
* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitTryCatchAnnotation}. |
|
*/ |
|
public Printer visitTryCatchAnnotation(final int typeRef, |
|
final TypePath typePath, final String desc, final boolean visible) { |
|
throw new RuntimeException("Must be overriden"); |
|
} |
|
/** |
|
* Method debug info. See |
|
* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitLocalVariable}. |
|
*/ |
|
public abstract void visitLocalVariable(final String name, |
|
final String desc, final String signature, final Label start, |
|
final Label end, final int index); |
|
/** |
|
* Local variable type annotation. See |
|
* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitTryCatchAnnotation}. |
|
*/ |
|
public Printer visitLocalVariableAnnotation(final int typeRef, |
|
final TypePath typePath, final Label[] start, final Label[] end, |
|
final int[] index, final String desc, final boolean visible) { |
|
throw new RuntimeException("Must be overriden"); |
|
} |
|
/** |
|
* Method debug info. See |
|
* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitLineNumber}. |
|
*/ |
|
public abstract void visitLineNumber(final int line, final Label start); |
|
/** |
|
* Method max stack and max locals. See |
|
* {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitMaxs}. |
|
*/ |
|
public abstract void visitMaxs(final int maxStack, final int maxLocals); |
|
/** |
|
* Method end. See {@link jdk.internal.org.objectweb.asm.MethodVisitor#visitEnd}. |
|
*/ |
|
public abstract void visitMethodEnd(); |
|
/** |
|
* Returns the text constructed by this visitor. |
|
* |
|
* @return the text constructed by this visitor. |
|
*/ |
|
public List<Object> getText() { |
|
return text; |
|
} |
|
/** |
|
* Prints the text constructed by this visitor. |
|
* |
|
* @param pw |
|
* the print writer to be used. |
|
*/ |
|
public void print(final PrintWriter pw) { |
|
printList(pw, text); |
|
} |
|
/** |
|
* Appends a quoted string to a given buffer. |
|
* |
|
* @param buf |
|
* the buffer where the string must be added. |
|
* @param s |
|
* the string to be added. |
|
*/ |
|
public static void appendString(final StringBuffer buf, final String s) { |
|
buf.append('\"'); |
|
for (int i = 0; i < s.length(); ++i) { |
|
char c = s.charAt(i); |
|
if (c == '\n') { |
|
buf.append("\\n"); |
|
} else if (c == '\r') { |
|
buf.append("\\r"); |
|
} else if (c == '\\') { |
|
buf.append("\\\\"); |
|
} else if (c == '"') { |
|
buf.append("\\\""); |
|
} else if (c < 0x20 || c > 0x7f) { |
|
buf.append("\\u"); |
|
if (c < 0x10) { |
|
buf.append("000"); |
|
} else if (c < 0x100) { |
|
buf.append("00"); |
|
} else if (c < 0x1000) { |
|
buf.append('0'); |
|
} |
|
buf.append(Integer.toString(c, 16)); |
|
} else { |
|
buf.append(c); |
|
} |
|
} |
|
buf.append('\"'); |
|
} |
|
/** |
|
* Prints the given string tree. |
|
* |
|
* @param pw |
|
* the writer to be used to print the tree. |
|
* @param l |
|
* a string tree, i.e., a string list that can contain other |
|
* string lists, and so on recursively. |
|
*/ |
|
static void printList(final PrintWriter pw, final List<?> l) { |
|
for (int i = 0; i < l.size(); ++i) { |
|
Object o = l.get(i); |
|
if (o instanceof List) { |
|
printList(pw, (List<?>) o); |
|
} else { |
|
pw.print(o.toString()); |
|
} |
|
} |
|
} |
|
} |