| // ASM: a very small and fast Java bytecode manipulation framework |
| // Copyright (c) 2000-2011 INRIA, France Telecom |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions |
| // are met: |
| // 1. Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // 2. Redistributions in binary form must reproduce the above copyright |
| // notice, this list of conditions and the following disclaimer in the |
| // documentation and/or other materials provided with the distribution. |
| // 3. Neither the name of the copyright holders nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| // THE POSSIBILITY OF SUCH DAMAGE. |
| package org.apache.tapestry5.internal.plastic.asm.util; |
| |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.Map; |
| import org.apache.tapestry5.internal.plastic.asm.Attribute; |
| import org.apache.tapestry5.internal.plastic.asm.Handle; |
| import org.apache.tapestry5.internal.plastic.asm.Label; |
| import org.apache.tapestry5.internal.plastic.asm.Opcodes; |
| import org.apache.tapestry5.internal.plastic.asm.Type; |
| import org.apache.tapestry5.internal.plastic.asm.TypePath; |
| import org.apache.tapestry5.internal.plastic.asm.TypeReference; |
| import org.apache.tapestry5.internal.plastic.asm.signature.SignatureReader; |
| |
| /** |
| * A {@link Printer} that prints a disassembled view of the classes it visits. |
| * |
| * @author Eric Bruneton |
| */ |
| public class Textifier extends Printer { |
| |
| /** The type of internal names. See {@link #appendDescriptor}. */ |
| public static final int INTERNAL_NAME = 0; |
| |
| /** The type of field descriptors. See {@link #appendDescriptor}. */ |
| public static final int FIELD_DESCRIPTOR = 1; |
| |
| /** The type of field signatures. See {@link #appendDescriptor}. */ |
| public static final int FIELD_SIGNATURE = 2; |
| |
| /** The type of method descriptors. See {@link #appendDescriptor}. */ |
| public static final int METHOD_DESCRIPTOR = 3; |
| |
| /** The type of method signatures. See {@link #appendDescriptor}. */ |
| public static final int METHOD_SIGNATURE = 4; |
| |
| /** The type of class signatures. See {@link #appendDescriptor}. */ |
| public static final int CLASS_SIGNATURE = 5; |
| |
| /** |
| * Deprecated. |
| * |
| * @deprecated this constant has never been used. |
| */ |
| @Deprecated public static final int TYPE_DECLARATION = 6; |
| |
| /** |
| * Deprecated. |
| * |
| * @deprecated this constant has never been used. |
| */ |
| @Deprecated public static final int CLASS_DECLARATION = 7; |
| |
| /** |
| * Deprecated. |
| * |
| * @deprecated this constant has never been used. |
| */ |
| @Deprecated public static final int PARAMETERS_DECLARATION = 8; |
| |
| /** The type of method handle descriptors. See {@link #appendDescriptor}. */ |
| public static final int HANDLE_DESCRIPTOR = 9; |
| |
| private static final String CLASS_SUFFIX = ".class"; |
| private static final String DEPRECATED = "// DEPRECATED\n"; |
| private static final String INVISIBLE = " // invisible\n"; |
| |
| /** The indentation of class members at depth level 1 (e.g. fields, methods). */ |
| protected String tab = " "; |
| |
| /** The indentation of class elements at depth level 2 (e.g. bytecode instructions in methods). */ |
| protected String tab2 = " "; |
| |
| /** The indentation of class elements at depth level 3 (e.g. switch cases in methods). */ |
| protected String tab3 = " "; |
| |
| /** The indentation of labels. */ |
| protected String ltab = " "; |
| |
| /** The names of the labels. */ |
| protected Map<Label, String> labelNames; |
| |
| /** The access flags of the visited class. */ |
| private int access; |
| |
| /** The number of annotation values visited so far. */ |
| private int numAnnotationValues; |
| |
| /** |
| * Constructs a new {@link Textifier}. <i>Subclasses must not use this constructor</i>. Instead, |
| * they must use the {@link #Textifier(int)} version. |
| * |
| * @throws IllegalStateException If a subclass calls this constructor. |
| */ |
| public Textifier() { |
| this(Opcodes.ASM7); |
| if (getClass() != Textifier.class) { |
| throw new IllegalStateException(); |
| } |
| } |
| |
| /** |
| * Constructs a new {@link Textifier}. |
| * |
| * @param api the ASM API version implemented by this visitor. Must be one of {@link |
| * Opcodes#ASM4}, {@link Opcodes#ASM5}, {@link Opcodes#ASM6} or {@link Opcodes#ASM7}. |
| */ |
| protected Textifier(final int api) { |
| super(api); |
| } |
| |
| /** |
| * Prints a disassembled view of the given class to the standard output. |
| * |
| * <p>Usage: Textifier [-debug] <binary class name or class file name > |
| * |
| * @param args the command line arguments. |
| * @throws IOException if the class cannot be found, or if an IOException occurs. |
| */ |
| public static void main(final String[] args) throws IOException { |
| String usage = |
| "Prints a disassembled view of the given class.\n" |
| + "Usage: Textifier [-debug] <fully qualified class name or class file name>"; |
| main(usage, new Textifier(), args); |
| } |
| |
| // ----------------------------------------------------------------------------------------------- |
| // Classes |
| // ----------------------------------------------------------------------------------------------- |
| |
| @Override |
| public void visit( |
| final int version, |
| final int access, |
| final String name, |
| final String signature, |
| final String superName, |
| final String[] interfaces) { |
| if ((access & Opcodes.ACC_MODULE) != 0) { |
| // Modules are printed in visitModule. |
| return; |
| } |
| this.access = access; |
| int majorVersion = version & 0xFFFF; |
| int minorVersion = version >>> 16; |
| stringBuilder.setLength(0); |
| stringBuilder |
| .append("// class version ") |
| .append(majorVersion) |
| .append('.') |
| .append(minorVersion) |
| .append(" (") |
| .append(version) |
| .append(")\n"); |
| if ((access & Opcodes.ACC_DEPRECATED) != 0) { |
| stringBuilder.append(DEPRECATED); |
| } |
| appendRawAccess(access); |
| |
| appendDescriptor(CLASS_SIGNATURE, signature); |
| if (signature != null) { |
| appendJavaDeclaration(name, signature); |
| } |
| |
| appendAccess(access & ~(Opcodes.ACC_SUPER | Opcodes.ACC_MODULE)); |
| if ((access & Opcodes.ACC_ANNOTATION) != 0) { |
| stringBuilder.append("@interface "); |
| } else if ((access & Opcodes.ACC_INTERFACE) != 0) { |
| stringBuilder.append("interface "); |
| } else if ((access & Opcodes.ACC_ENUM) == 0) { |
| stringBuilder.append("class "); |
| } |
| appendDescriptor(INTERNAL_NAME, name); |
| |
| if (superName != null && !"java/lang/Object".equals(superName)) { |
| stringBuilder.append(" extends "); |
| appendDescriptor(INTERNAL_NAME, superName); |
| } |
| if (interfaces != null && interfaces.length > 0) { |
| stringBuilder.append(" implements "); |
| for (int i = 0; i < interfaces.length; ++i) { |
| appendDescriptor(INTERNAL_NAME, interfaces[i]); |
| if (i != interfaces.length - 1) { |
| stringBuilder.append(' '); |
| } |
| } |
| } |
| stringBuilder.append(" {\n\n"); |
| |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitSource(final String file, final String debug) { |
| stringBuilder.setLength(0); |
| if (file != null) { |
| stringBuilder.append(tab).append("// compiled from: ").append(file).append('\n'); |
| } |
| if (debug != null) { |
| stringBuilder.append(tab).append("// debug info: ").append(debug).append('\n'); |
| } |
| if (stringBuilder.length() > 0) { |
| text.add(stringBuilder.toString()); |
| } |
| } |
| |
| @Override |
| public Printer visitModule(final String name, final int access, final String version) { |
| stringBuilder.setLength(0); |
| if ((access & Opcodes.ACC_OPEN) != 0) { |
| stringBuilder.append("open "); |
| } |
| stringBuilder |
| .append("module ") |
| .append(name) |
| .append(" { ") |
| .append(version == null ? "" : "// " + version) |
| .append("\n\n"); |
| text.add(stringBuilder.toString()); |
| return addNewTextifier(null); |
| } |
| |
| @Override |
| public void visitNestHost(final String nestHost) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab).append("NESTHOST "); |
| appendDescriptor(INTERNAL_NAME, nestHost); |
| stringBuilder.append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitOuterClass(final String owner, final String name, final String descriptor) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab).append("OUTERCLASS "); |
| appendDescriptor(INTERNAL_NAME, owner); |
| stringBuilder.append(' '); |
| if (name != null) { |
| stringBuilder.append(name).append(' '); |
| } |
| appendDescriptor(METHOD_DESCRIPTOR, descriptor); |
| stringBuilder.append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public Textifier visitClassAnnotation(final String descriptor, final boolean visible) { |
| text.add("\n"); |
| return visitAnnotation(descriptor, visible); |
| } |
| |
| @Override |
| public Printer visitClassTypeAnnotation( |
| final int typeRef, final TypePath typePath, final String descriptor, final boolean visible) { |
| text.add("\n"); |
| return visitTypeAnnotation(typeRef, typePath, descriptor, visible); |
| } |
| |
| @Override |
| public void visitClassAttribute(final Attribute attribute) { |
| text.add("\n"); |
| visitAttribute(attribute); |
| } |
| |
| @Override |
| public void visitNestMember(final String nestMember) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab).append("NESTMEMBER "); |
| appendDescriptor(INTERNAL_NAME, nestMember); |
| stringBuilder.append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitInnerClass( |
| final String name, final String outerName, final String innerName, final int access) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab); |
| appendRawAccess(access & ~Opcodes.ACC_SUPER); |
| stringBuilder.append(tab); |
| appendAccess(access); |
| stringBuilder.append("INNERCLASS "); |
| appendDescriptor(INTERNAL_NAME, name); |
| stringBuilder.append(' '); |
| appendDescriptor(INTERNAL_NAME, outerName); |
| stringBuilder.append(' '); |
| appendDescriptor(INTERNAL_NAME, innerName); |
| stringBuilder.append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public Textifier visitField( |
| final int access, |
| final String name, |
| final String descriptor, |
| final String signature, |
| final Object value) { |
| stringBuilder.setLength(0); |
| stringBuilder.append('\n'); |
| if ((access & Opcodes.ACC_DEPRECATED) != 0) { |
| stringBuilder.append(tab).append(DEPRECATED); |
| } |
| stringBuilder.append(tab); |
| appendRawAccess(access); |
| if (signature != null) { |
| stringBuilder.append(tab); |
| appendDescriptor(FIELD_SIGNATURE, signature); |
| stringBuilder.append(tab); |
| appendJavaDeclaration(name, signature); |
| } |
| |
| stringBuilder.append(tab); |
| appendAccess(access); |
| |
| appendDescriptor(FIELD_DESCRIPTOR, descriptor); |
| stringBuilder.append(' ').append(name); |
| if (value != null) { |
| stringBuilder.append(" = "); |
| if (value instanceof String) { |
| stringBuilder.append('\"').append(value).append('\"'); |
| } else { |
| stringBuilder.append(value); |
| } |
| } |
| |
| stringBuilder.append('\n'); |
| text.add(stringBuilder.toString()); |
| return addNewTextifier(null); |
| } |
| |
| @Override |
| public Textifier visitMethod( |
| final int access, |
| final String name, |
| final String descriptor, |
| final String signature, |
| final String[] exceptions) { |
| stringBuilder.setLength(0); |
| stringBuilder.append('\n'); |
| if ((access & Opcodes.ACC_DEPRECATED) != 0) { |
| stringBuilder.append(tab).append(DEPRECATED); |
| } |
| stringBuilder.append(tab); |
| appendRawAccess(access); |
| |
| if (signature != null) { |
| stringBuilder.append(tab); |
| appendDescriptor(METHOD_SIGNATURE, signature); |
| stringBuilder.append(tab); |
| appendJavaDeclaration(name, signature); |
| } |
| |
| stringBuilder.append(tab); |
| appendAccess(access & ~(Opcodes.ACC_VOLATILE | Opcodes.ACC_TRANSIENT)); |
| if ((access & Opcodes.ACC_NATIVE) != 0) { |
| stringBuilder.append("native "); |
| } |
| if ((access & Opcodes.ACC_VARARGS) != 0) { |
| stringBuilder.append("varargs "); |
| } |
| if ((access & Opcodes.ACC_BRIDGE) != 0) { |
| stringBuilder.append("bridge "); |
| } |
| if ((this.access & Opcodes.ACC_INTERFACE) != 0 |
| && (access & (Opcodes.ACC_ABSTRACT | Opcodes.ACC_STATIC)) == 0) { |
| stringBuilder.append("default "); |
| } |
| |
| stringBuilder.append(name); |
| appendDescriptor(METHOD_DESCRIPTOR, descriptor); |
| if (exceptions != null && exceptions.length > 0) { |
| stringBuilder.append(" throws "); |
| for (String exception : exceptions) { |
| appendDescriptor(INTERNAL_NAME, exception); |
| stringBuilder.append(' '); |
| } |
| } |
| |
| stringBuilder.append('\n'); |
| text.add(stringBuilder.toString()); |
| return addNewTextifier(null); |
| } |
| |
| @Override |
| public void visitClassEnd() { |
| text.add("}\n"); |
| } |
| |
| // ----------------------------------------------------------------------------------------------- |
| // Modules |
| // ----------------------------------------------------------------------------------------------- |
| |
| @Override |
| public void visitMainClass(final String mainClass) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(" // main class ").append(mainClass).append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitPackage(final String packaze) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(" // package ").append(packaze).append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitRequire(final String require, final int access, final String version) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab).append("requires "); |
| if ((access & Opcodes.ACC_TRANSITIVE) != 0) { |
| stringBuilder.append("transitive "); |
| } |
| if ((access & Opcodes.ACC_STATIC_PHASE) != 0) { |
| stringBuilder.append("static "); |
| } |
| stringBuilder.append(require).append(';'); |
| appendRawAccess(access); |
| if (version != null) { |
| stringBuilder.append(" // version ").append(version).append('\n'); |
| } |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitExport(final String export, final int access, final String... modules) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab).append("exports "); |
| stringBuilder.append(export); |
| if (modules != null && modules.length > 0) { |
| stringBuilder.append(" to"); |
| } else { |
| stringBuilder.append(';'); |
| } |
| appendRawAccess(access); |
| if (modules != null && modules.length > 0) { |
| for (int i = 0; i < modules.length; ++i) { |
| stringBuilder.append(tab2).append(modules[i]); |
| stringBuilder.append(i != modules.length - 1 ? ",\n" : ";\n"); |
| } |
| } |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitOpen(final String export, final int access, final String... modules) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab).append("opens "); |
| stringBuilder.append(export); |
| if (modules != null && modules.length > 0) { |
| stringBuilder.append(" to"); |
| } else { |
| stringBuilder.append(';'); |
| } |
| appendRawAccess(access); |
| if (modules != null && modules.length > 0) { |
| for (int i = 0; i < modules.length; ++i) { |
| stringBuilder.append(tab2).append(modules[i]); |
| stringBuilder.append(i != modules.length - 1 ? ",\n" : ";\n"); |
| } |
| } |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitUse(final String use) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab).append("uses "); |
| appendDescriptor(INTERNAL_NAME, use); |
| stringBuilder.append(";\n"); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitProvide(final String provide, final String... providers) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab).append("provides "); |
| appendDescriptor(INTERNAL_NAME, provide); |
| stringBuilder.append(" with\n"); |
| for (int i = 0; i < providers.length; ++i) { |
| stringBuilder.append(tab2); |
| appendDescriptor(INTERNAL_NAME, providers[i]); |
| stringBuilder.append(i != providers.length - 1 ? ",\n" : ";\n"); |
| } |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitModuleEnd() { |
| // Nothing to do. |
| } |
| |
| // ----------------------------------------------------------------------------------------------- |
| // Annotations |
| // ----------------------------------------------------------------------------------------------- |
| |
| // DontCheck(OverloadMethodsDeclarationOrder): overloads are semantically different. |
| @Override |
| public void visit(final String name, final Object value) { |
| visitAnnotationValue(name); |
| if (value instanceof String) { |
| visitString((String) value); |
| } else if (value instanceof Type) { |
| visitType((Type) value); |
| } else if (value instanceof Byte) { |
| visitByte(((Byte) value).byteValue()); |
| } else if (value instanceof Boolean) { |
| visitBoolean(((Boolean) value).booleanValue()); |
| } else if (value instanceof Short) { |
| visitShort(((Short) value).shortValue()); |
| } else if (value instanceof Character) { |
| visitChar(((Character) value).charValue()); |
| } else if (value instanceof Integer) { |
| visitInt(((Integer) value).intValue()); |
| } else if (value instanceof Float) { |
| visitFloat(((Float) value).floatValue()); |
| } else if (value instanceof Long) { |
| visitLong(((Long) value).longValue()); |
| } else if (value instanceof Double) { |
| visitDouble(((Double) value).doubleValue()); |
| } else if (value.getClass().isArray()) { |
| stringBuilder.append('{'); |
| if (value instanceof byte[]) { |
| byte[] byteArray = (byte[]) value; |
| for (int i = 0; i < byteArray.length; i++) { |
| maybeAppendComma(i); |
| visitByte(byteArray[i]); |
| } |
| } else if (value instanceof boolean[]) { |
| boolean[] booleanArray = (boolean[]) value; |
| for (int i = 0; i < booleanArray.length; i++) { |
| maybeAppendComma(i); |
| visitBoolean(booleanArray[i]); |
| } |
| } else if (value instanceof short[]) { |
| short[] shortArray = (short[]) value; |
| for (int i = 0; i < shortArray.length; i++) { |
| maybeAppendComma(i); |
| visitShort(shortArray[i]); |
| } |
| } else if (value instanceof char[]) { |
| char[] charArray = (char[]) value; |
| for (int i = 0; i < charArray.length; i++) { |
| maybeAppendComma(i); |
| visitChar(charArray[i]); |
| } |
| } else if (value instanceof int[]) { |
| int[] intArray = (int[]) value; |
| for (int i = 0; i < intArray.length; i++) { |
| maybeAppendComma(i); |
| visitInt(intArray[i]); |
| } |
| } else if (value instanceof long[]) { |
| long[] longArray = (long[]) value; |
| for (int i = 0; i < longArray.length; i++) { |
| maybeAppendComma(i); |
| visitLong(longArray[i]); |
| } |
| } else if (value instanceof float[]) { |
| float[] floatArray = (float[]) value; |
| for (int i = 0; i < floatArray.length; i++) { |
| maybeAppendComma(i); |
| visitFloat(floatArray[i]); |
| } |
| } else if (value instanceof double[]) { |
| double[] doubleArray = (double[]) value; |
| for (int i = 0; i < doubleArray.length; i++) { |
| maybeAppendComma(i); |
| visitDouble(doubleArray[i]); |
| } |
| } |
| stringBuilder.append('}'); |
| } |
| text.add(stringBuilder.toString()); |
| } |
| |
| private void visitInt(final int value) { |
| stringBuilder.append(value); |
| } |
| |
| private void visitLong(final long value) { |
| stringBuilder.append(value).append('L'); |
| } |
| |
| private void visitFloat(final float value) { |
| stringBuilder.append(value).append('F'); |
| } |
| |
| private void visitDouble(final double value) { |
| stringBuilder.append(value).append('D'); |
| } |
| |
| private void visitChar(final char value) { |
| stringBuilder.append("(char)").append((int) value); |
| } |
| |
| private void visitShort(final short value) { |
| stringBuilder.append("(short)").append(value); |
| } |
| |
| private void visitByte(final byte value) { |
| stringBuilder.append("(byte)").append(value); |
| } |
| |
| private void visitBoolean(final boolean value) { |
| stringBuilder.append(value); |
| } |
| |
| private void visitString(final String value) { |
| appendString(stringBuilder, value); |
| } |
| |
| private void visitType(final Type value) { |
| stringBuilder.append(value.getClassName()).append(CLASS_SUFFIX); |
| } |
| |
| @Override |
| public void visitEnum(final String name, final String descriptor, final String value) { |
| visitAnnotationValue(name); |
| appendDescriptor(FIELD_DESCRIPTOR, descriptor); |
| stringBuilder.append('.').append(value); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public Textifier visitAnnotation(final String name, final String descriptor) { |
| visitAnnotationValue(name); |
| stringBuilder.append('@'); |
| appendDescriptor(FIELD_DESCRIPTOR, descriptor); |
| stringBuilder.append('('); |
| text.add(stringBuilder.toString()); |
| return addNewTextifier(")"); |
| } |
| |
| @Override |
| public Textifier visitArray(final String name) { |
| visitAnnotationValue(name); |
| stringBuilder.append('{'); |
| text.add(stringBuilder.toString()); |
| return addNewTextifier("}"); |
| } |
| |
| @Override |
| public void visitAnnotationEnd() { |
| // Nothing to do. |
| } |
| |
| private void visitAnnotationValue(final String name) { |
| stringBuilder.setLength(0); |
| maybeAppendComma(numAnnotationValues++); |
| if (name != null) { |
| stringBuilder.append(name).append('='); |
| } |
| } |
| |
| // ----------------------------------------------------------------------------------------------- |
| // Fields |
| // ----------------------------------------------------------------------------------------------- |
| |
| @Override |
| public Textifier visitFieldAnnotation(final String descriptor, final boolean visible) { |
| return visitAnnotation(descriptor, visible); |
| } |
| |
| @Override |
| public Printer visitFieldTypeAnnotation( |
| final int typeRef, final TypePath typePath, final String descriptor, final boolean visible) { |
| return visitTypeAnnotation(typeRef, typePath, descriptor, visible); |
| } |
| |
| @Override |
| public void visitFieldAttribute(final Attribute attribute) { |
| visitAttribute(attribute); |
| } |
| |
| @Override |
| public void visitFieldEnd() { |
| // Nothing to do. |
| } |
| |
| // ----------------------------------------------------------------------------------------------- |
| // Methods |
| // ----------------------------------------------------------------------------------------------- |
| |
| @Override |
| public void visitParameter(final String name, final int access) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append("// parameter "); |
| appendAccess(access); |
| stringBuilder.append(' ').append((name == null) ? "<no name>" : name).append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public Textifier visitAnnotationDefault() { |
| text.add(tab2 + "default="); |
| return addNewTextifier("\n"); |
| } |
| |
| @Override |
| public Textifier visitMethodAnnotation(final String descriptor, final boolean visible) { |
| return visitAnnotation(descriptor, visible); |
| } |
| |
| @Override |
| public Printer visitMethodTypeAnnotation( |
| final int typeRef, final TypePath typePath, final String descriptor, final boolean visible) { |
| return visitTypeAnnotation(typeRef, typePath, descriptor, visible); |
| } |
| |
| @Override |
| public Textifier visitAnnotableParameterCount(final int parameterCount, final boolean visible) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append("// annotable parameter count: "); |
| stringBuilder.append(parameterCount); |
| stringBuilder.append(visible ? " (visible)\n" : " (invisible)\n"); |
| text.add(stringBuilder.toString()); |
| return this; |
| } |
| |
| @Override |
| public Textifier visitParameterAnnotation( |
| final int parameter, final String descriptor, final boolean visible) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append('@'); |
| appendDescriptor(FIELD_DESCRIPTOR, descriptor); |
| stringBuilder.append('('); |
| text.add(stringBuilder.toString()); |
| |
| stringBuilder.setLength(0); |
| stringBuilder |
| .append(visible ? ") // parameter " : ") // invisible, parameter ") |
| .append(parameter) |
| .append('\n'); |
| return addNewTextifier(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitMethodAttribute(final Attribute attribute) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab).append("ATTRIBUTE "); |
| appendDescriptor(-1, attribute.type); |
| |
| if (attribute instanceof Textifiable) { |
| StringBuffer stringBuffer = new StringBuffer(); |
| ((Textifiable) attribute).textify(stringBuffer, labelNames); |
| stringBuilder.append(stringBuffer.toString()); |
| } else { |
| stringBuilder.append(" : unknown\n"); |
| } |
| |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitCode() { |
| // Nothing to do. |
| } |
| |
| @Override |
| public void visitFrame( |
| final int type, |
| final int numLocal, |
| final Object[] local, |
| final int numStack, |
| final Object[] stack) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(ltab); |
| stringBuilder.append("FRAME "); |
| switch (type) { |
| case Opcodes.F_NEW: |
| case Opcodes.F_FULL: |
| stringBuilder.append("FULL ["); |
| appendFrameTypes(numLocal, local); |
| stringBuilder.append("] ["); |
| appendFrameTypes(numStack, stack); |
| stringBuilder.append(']'); |
| break; |
| case Opcodes.F_APPEND: |
| stringBuilder.append("APPEND ["); |
| appendFrameTypes(numLocal, local); |
| stringBuilder.append(']'); |
| break; |
| case Opcodes.F_CHOP: |
| stringBuilder.append("CHOP ").append(numLocal); |
| break; |
| case Opcodes.F_SAME: |
| stringBuilder.append("SAME"); |
| break; |
| case Opcodes.F_SAME1: |
| stringBuilder.append("SAME1 "); |
| appendFrameTypes(1, stack); |
| break; |
| default: |
| throw new IllegalArgumentException(); |
| } |
| stringBuilder.append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitInsn(final int opcode) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append(OPCODES[opcode]).append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitIntInsn(final int opcode, final int operand) { |
| stringBuilder.setLength(0); |
| stringBuilder |
| .append(tab2) |
| .append(OPCODES[opcode]) |
| .append(' ') |
| .append(opcode == Opcodes.NEWARRAY ? TYPES[operand] : Integer.toString(operand)) |
| .append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitVarInsn(final int opcode, final int var) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append(OPCODES[opcode]).append(' ').append(var).append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitTypeInsn(final int opcode, final String type) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append(OPCODES[opcode]).append(' '); |
| appendDescriptor(INTERNAL_NAME, type); |
| stringBuilder.append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitFieldInsn( |
| final int opcode, final String owner, final String name, final String descriptor) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append(OPCODES[opcode]).append(' '); |
| appendDescriptor(INTERNAL_NAME, owner); |
| stringBuilder.append('.').append(name).append(" : "); |
| appendDescriptor(FIELD_DESCRIPTOR, descriptor); |
| stringBuilder.append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| /** |
| * Deprecated. |
| * |
| * @deprecated use {@link #visitMethodInsn(int, String, String, String, boolean)} instead. |
| */ |
| @Deprecated |
| @Override |
| public void visitMethodInsn( |
| final int opcode, final String owner, final String name, final String descriptor) { |
| if (api >= Opcodes.ASM5) { |
| super.visitMethodInsn(opcode, owner, name, descriptor); |
| return; |
| } |
| doVisitMethodInsn(opcode, owner, name, descriptor, opcode == Opcodes.INVOKEINTERFACE); |
| } |
| |
| @Override |
| public void visitMethodInsn( |
| final int opcode, |
| final String owner, |
| final String name, |
| final String descriptor, |
| final boolean isInterface) { |
| if (api < Opcodes.ASM5) { |
| super.visitMethodInsn(opcode, owner, name, descriptor, isInterface); |
| return; |
| } |
| doVisitMethodInsn(opcode, owner, name, descriptor, isInterface); |
| } |
| |
| private void doVisitMethodInsn( |
| final int opcode, |
| final String owner, |
| final String name, |
| final String descriptor, |
| final boolean isInterface) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append(OPCODES[opcode]).append(' '); |
| appendDescriptor(INTERNAL_NAME, owner); |
| stringBuilder.append('.').append(name).append(' '); |
| appendDescriptor(METHOD_DESCRIPTOR, descriptor); |
| if (isInterface) { |
| stringBuilder.append(" (itf)"); |
| } |
| stringBuilder.append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitInvokeDynamicInsn( |
| final String name, |
| final String descriptor, |
| final Handle bootstrapMethodHandle, |
| final Object... bootstrapMethodArguments) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append("INVOKEDYNAMIC").append(' '); |
| stringBuilder.append(name); |
| appendDescriptor(METHOD_DESCRIPTOR, descriptor); |
| stringBuilder.append(" ["); |
| stringBuilder.append('\n'); |
| stringBuilder.append(tab3); |
| appendHandle(bootstrapMethodHandle); |
| stringBuilder.append('\n'); |
| stringBuilder.append(tab3).append("// arguments:"); |
| if (bootstrapMethodArguments.length == 0) { |
| stringBuilder.append(" none"); |
| } else { |
| stringBuilder.append('\n'); |
| for (Object value : bootstrapMethodArguments) { |
| stringBuilder.append(tab3); |
| if (value instanceof String) { |
| Printer.appendString(stringBuilder, (String) value); |
| } else if (value instanceof Type) { |
| Type type = (Type) value; |
| if (type.getSort() == Type.METHOD) { |
| appendDescriptor(METHOD_DESCRIPTOR, type.getDescriptor()); |
| } else { |
| visitType(type); |
| } |
| } else if (value instanceof Handle) { |
| appendHandle((Handle) value); |
| } else { |
| stringBuilder.append(value); |
| } |
| stringBuilder.append(", \n"); |
| } |
| stringBuilder.setLength(stringBuilder.length() - 3); |
| } |
| stringBuilder.append('\n'); |
| stringBuilder.append(tab2).append("]\n"); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitJumpInsn(final int opcode, final Label label) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append(OPCODES[opcode]).append(' '); |
| appendLabel(label); |
| stringBuilder.append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitLabel(final Label label) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(ltab); |
| appendLabel(label); |
| stringBuilder.append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitLdcInsn(final Object value) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append("LDC "); |
| if (value instanceof String) { |
| Printer.appendString(stringBuilder, (String) value); |
| } else if (value instanceof Type) { |
| stringBuilder.append(((Type) value).getDescriptor()).append(CLASS_SUFFIX); |
| } else { |
| stringBuilder.append(value); |
| } |
| stringBuilder.append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitIincInsn(final int var, final int increment) { |
| stringBuilder.setLength(0); |
| stringBuilder |
| .append(tab2) |
| .append("IINC ") |
| .append(var) |
| .append(' ') |
| .append(increment) |
| .append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitTableSwitchInsn( |
| final int min, final int max, final Label dflt, final Label... labels) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append("TABLESWITCH\n"); |
| for (int i = 0; i < labels.length; ++i) { |
| stringBuilder.append(tab3).append(min + i).append(": "); |
| appendLabel(labels[i]); |
| stringBuilder.append('\n'); |
| } |
| stringBuilder.append(tab3).append("default: "); |
| appendLabel(dflt); |
| stringBuilder.append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitLookupSwitchInsn(final Label dflt, final int[] keys, final Label[] labels) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append("LOOKUPSWITCH\n"); |
| for (int i = 0; i < labels.length; ++i) { |
| stringBuilder.append(tab3).append(keys[i]).append(": "); |
| appendLabel(labels[i]); |
| stringBuilder.append('\n'); |
| } |
| stringBuilder.append(tab3).append("default: "); |
| appendLabel(dflt); |
| stringBuilder.append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitMultiANewArrayInsn(final String descriptor, final int numDimensions) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append("MULTIANEWARRAY "); |
| appendDescriptor(FIELD_DESCRIPTOR, descriptor); |
| stringBuilder.append(' ').append(numDimensions).append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public Printer visitInsnAnnotation( |
| final int typeRef, final TypePath typePath, final String descriptor, final boolean visible) { |
| return visitTypeAnnotation(typeRef, typePath, descriptor, visible); |
| } |
| |
| @Override |
| public void visitTryCatchBlock( |
| final Label start, final Label end, final Label handler, final String type) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append("TRYCATCHBLOCK "); |
| appendLabel(start); |
| stringBuilder.append(' '); |
| appendLabel(end); |
| stringBuilder.append(' '); |
| appendLabel(handler); |
| stringBuilder.append(' '); |
| appendDescriptor(INTERNAL_NAME, type); |
| stringBuilder.append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public Printer visitTryCatchAnnotation( |
| final int typeRef, final TypePath typePath, final String descriptor, final boolean visible) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append("TRYCATCHBLOCK @"); |
| appendDescriptor(FIELD_DESCRIPTOR, descriptor); |
| stringBuilder.append('('); |
| text.add(stringBuilder.toString()); |
| |
| stringBuilder.setLength(0); |
| stringBuilder.append(") : "); |
| appendTypeReference(typeRef); |
| stringBuilder.append(", ").append(typePath); |
| stringBuilder.append(visible ? "\n" : INVISIBLE); |
| return addNewTextifier(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitLocalVariable( |
| final String name, |
| final String descriptor, |
| final String signature, |
| final Label start, |
| final Label end, |
| final int index) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append("LOCALVARIABLE ").append(name).append(' '); |
| appendDescriptor(FIELD_DESCRIPTOR, descriptor); |
| stringBuilder.append(' '); |
| appendLabel(start); |
| stringBuilder.append(' '); |
| appendLabel(end); |
| stringBuilder.append(' ').append(index).append('\n'); |
| |
| if (signature != null) { |
| stringBuilder.append(tab2); |
| appendDescriptor(FIELD_SIGNATURE, signature); |
| stringBuilder.append(tab2); |
| appendJavaDeclaration(name, signature); |
| } |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public Printer visitLocalVariableAnnotation( |
| final int typeRef, |
| final TypePath typePath, |
| final Label[] start, |
| final Label[] end, |
| final int[] index, |
| final String descriptor, |
| final boolean visible) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append("LOCALVARIABLE @"); |
| appendDescriptor(FIELD_DESCRIPTOR, descriptor); |
| stringBuilder.append('('); |
| text.add(stringBuilder.toString()); |
| |
| stringBuilder.setLength(0); |
| stringBuilder.append(") : "); |
| appendTypeReference(typeRef); |
| stringBuilder.append(", ").append(typePath); |
| for (int i = 0; i < start.length; ++i) { |
| stringBuilder.append(" [ "); |
| appendLabel(start[i]); |
| stringBuilder.append(" - "); |
| appendLabel(end[i]); |
| stringBuilder.append(" - ").append(index[i]).append(" ]"); |
| } |
| stringBuilder.append(visible ? "\n" : INVISIBLE); |
| return addNewTextifier(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitLineNumber(final int line, final Label start) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append("LINENUMBER ").append(line).append(' '); |
| appendLabel(start); |
| stringBuilder.append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitMaxs(final int maxStack, final int maxLocals) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append("MAXSTACK = ").append(maxStack).append('\n'); |
| text.add(stringBuilder.toString()); |
| |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab2).append("MAXLOCALS = ").append(maxLocals).append('\n'); |
| text.add(stringBuilder.toString()); |
| } |
| |
| @Override |
| public void visitMethodEnd() { |
| // Nothing to do. |
| } |
| |
| // ----------------------------------------------------------------------------------------------- |
| // Common methods |
| // ----------------------------------------------------------------------------------------------- |
| |
| /** |
| * Prints a disassembled view of the given annotation. |
| * |
| * @param descriptor the class descriptor of the annotation class. |
| * @param visible {@literal true} if the annotation is visible at runtime. |
| * @return a visitor to visit the annotation values. |
| */ |
| // DontCheck(OverloadMethodsDeclarationOrder): overloads are semantically different. |
| public Textifier visitAnnotation(final String descriptor, final boolean visible) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab).append('@'); |
| appendDescriptor(FIELD_DESCRIPTOR, descriptor); |
| stringBuilder.append('('); |
| text.add(stringBuilder.toString()); |
| return addNewTextifier(visible ? ")\n" : ") // invisible\n"); |
| } |
| |
| /** |
| * Prints a disassembled view of the given type annotation. |
| * |
| * @param typeRef a reference to the annotated type. See {@link TypeReference}. |
| * @param typePath the path to the annotated type argument, wildcard bound, array element type, or |
| * static inner type within 'typeRef'. May be {@literal null} if the annotation targets |
| * 'typeRef' as a whole. |
| * @param descriptor the class descriptor of the annotation class. |
| * @param visible {@literal true} if the annotation is visible at runtime. |
| * @return a visitor to visit the annotation values. |
| */ |
| public Textifier visitTypeAnnotation( |
| final int typeRef, final TypePath typePath, final String descriptor, final boolean visible) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab).append('@'); |
| appendDescriptor(FIELD_DESCRIPTOR, descriptor); |
| stringBuilder.append('('); |
| text.add(stringBuilder.toString()); |
| |
| stringBuilder.setLength(0); |
| stringBuilder.append(") : "); |
| appendTypeReference(typeRef); |
| stringBuilder.append(", ").append(typePath); |
| stringBuilder.append(visible ? "\n" : INVISIBLE); |
| return addNewTextifier(stringBuilder.toString()); |
| } |
| |
| /** |
| * Prints a disassembled view of the given attribute. |
| * |
| * @param attribute an attribute. |
| */ |
| public void visitAttribute(final Attribute attribute) { |
| stringBuilder.setLength(0); |
| stringBuilder.append(tab).append("ATTRIBUTE "); |
| appendDescriptor(-1, attribute.type); |
| |
| if (attribute instanceof Textifiable) { |
| StringBuffer stringBuffer = new StringBuffer(); |
| ((Textifiable) attribute).textify(stringBuffer, null); |
| stringBuilder.append(stringBuffer.toString()); |
| } else { |
| stringBuilder.append(" : unknown\n"); |
| } |
| |
| text.add(stringBuilder.toString()); |
| } |
| |
| // ----------------------------------------------------------------------------------------------- |
| // Utility methods |
| // ----------------------------------------------------------------------------------------------- |
| |
| /** |
| * Appends a string representation of the given access flags to {@link #stringBuilder}. |
| * |
| * @param accessFlags some access flags. |
| */ |
| private void appendAccess(final int accessFlags) { |
| if ((accessFlags & Opcodes.ACC_PUBLIC) != 0) { |
| stringBuilder.append("public "); |
| } |
| if ((accessFlags & Opcodes.ACC_PRIVATE) != 0) { |
| stringBuilder.append("private "); |
| } |
| if ((accessFlags & Opcodes.ACC_PROTECTED) != 0) { |
| stringBuilder.append("protected "); |
| } |
| if ((accessFlags & Opcodes.ACC_FINAL) != 0) { |
| stringBuilder.append("final "); |
| } |
| if ((accessFlags & Opcodes.ACC_STATIC) != 0) { |
| stringBuilder.append("static "); |
| } |
| if ((accessFlags & Opcodes.ACC_SYNCHRONIZED) != 0) { |
| stringBuilder.append("synchronized "); |
| } |
| if ((accessFlags & Opcodes.ACC_VOLATILE) != 0) { |
| stringBuilder.append("volatile "); |
| } |
| if ((accessFlags & Opcodes.ACC_TRANSIENT) != 0) { |
| stringBuilder.append("transient "); |
| } |
| if ((accessFlags & Opcodes.ACC_ABSTRACT) != 0) { |
| stringBuilder.append("abstract "); |
| } |
| if ((accessFlags & Opcodes.ACC_STRICT) != 0) { |
| stringBuilder.append("strictfp "); |
| } |
| if ((accessFlags & Opcodes.ACC_SYNTHETIC) != 0) { |
| stringBuilder.append("synthetic "); |
| } |
| if ((accessFlags & Opcodes.ACC_MANDATED) != 0) { |
| stringBuilder.append("mandated "); |
| } |
| if ((accessFlags & Opcodes.ACC_ENUM) != 0) { |
| stringBuilder.append("enum "); |
| } |
| } |
| |
| /** |
| * Appends the hexadecimal value of the given access flags to {@link #stringBuilder}. |
| * |
| * @param accessFlags some access flags. |
| */ |
| private void appendRawAccess(final int accessFlags) { |
| stringBuilder |
| .append("// access flags 0x") |
| .append(Integer.toHexString(accessFlags).toUpperCase()) |
| .append('\n'); |
| } |
| |
| /** |
| * Appends an internal name, a type descriptor or a type signature to {@link #stringBuilder}. |
| * |
| * @param type the type of 'value'. Must be one of {@link #INTERNAL_NAME}, {@link |
| * #FIELD_DESCRIPTOR}, {@link #FIELD_SIGNATURE}, {@link #METHOD_DESCRIPTOR}, {@link |
| * #METHOD_SIGNATURE}, {@link #CLASS_SIGNATURE}, {@link #TYPE_DECLARATION}, {@link |
| * #CLASS_DECLARATION}, {@link #PARAMETERS_DECLARATION} of {@link #HANDLE_DESCRIPTOR}. |
| * @param value an internal name, type descriptor or a type signature. May be {@literal null}. |
| */ |
| protected void appendDescriptor(final int type, final String value) { |
| if (type == CLASS_SIGNATURE || type == FIELD_SIGNATURE || type == METHOD_SIGNATURE) { |
| if (value != null) { |
| stringBuilder.append("// signature ").append(value).append('\n'); |
| } |
| } else { |
| stringBuilder.append(value); |
| } |
| } |
| |
| /** |
| * Appends the Java generic type declaration corresponding to the given signature. |
| * |
| * @param name a class, field or method name. |
| * @param signature a class, field or method signature. |
| */ |
| private void appendJavaDeclaration(final String name, final String signature) { |
| TraceSignatureVisitor traceSignatureVisitor = new TraceSignatureVisitor(access); |
| new SignatureReader(signature).accept(traceSignatureVisitor); |
| stringBuilder.append("// declaration: "); |
| if (traceSignatureVisitor.getReturnType() != null) { |
| stringBuilder.append(traceSignatureVisitor.getReturnType()); |
| stringBuilder.append(' '); |
| } |
| stringBuilder.append(name); |
| stringBuilder.append(traceSignatureVisitor.getDeclaration()); |
| if (traceSignatureVisitor.getExceptions() != null) { |
| stringBuilder.append(" throws ").append(traceSignatureVisitor.getExceptions()); |
| } |
| stringBuilder.append('\n'); |
| } |
| |
| /** |
| * Appends the name of the given label to {@link #stringBuilder}. Constructs a new label name if |
| * the given label does not yet have one. |
| * |
| * @param label a label. |
| */ |
| protected void appendLabel(final Label label) { |
| if (labelNames == null) { |
| labelNames = new HashMap<Label, String>(); |
| } |
| String name = labelNames.get(label); |
| if (name == null) { |
| name = "L" + labelNames.size(); |
| labelNames.put(label, name); |
| } |
| stringBuilder.append(name); |
| } |
| |
| /** |
| * Appends a string representation of the given handle to {@link #stringBuilder}. |
| * |
| * @param handle a handle. |
| */ |
| protected void appendHandle(final Handle handle) { |
| int tag = handle.getTag(); |
| stringBuilder.append("// handle kind 0x").append(Integer.toHexString(tag)).append(" : "); |
| boolean isMethodHandle = false; |
| switch (tag) { |
| case Opcodes.H_GETFIELD: |
| stringBuilder.append("GETFIELD"); |
| break; |
| case Opcodes.H_GETSTATIC: |
| stringBuilder.append("GETSTATIC"); |
| break; |
| case Opcodes.H_PUTFIELD: |
| stringBuilder.append("PUTFIELD"); |
| break; |
| case Opcodes.H_PUTSTATIC: |
| stringBuilder.append("PUTSTATIC"); |
| break; |
| case Opcodes.H_INVOKEINTERFACE: |
| stringBuilder.append("INVOKEINTERFACE"); |
| isMethodHandle = true; |
| break; |
| case Opcodes.H_INVOKESPECIAL: |
| stringBuilder.append("INVOKESPECIAL"); |
| isMethodHandle = true; |
| break; |
| case Opcodes.H_INVOKESTATIC: |
| stringBuilder.append("INVOKESTATIC"); |
| isMethodHandle = true; |
| break; |
| case Opcodes.H_INVOKEVIRTUAL: |
| stringBuilder.append("INVOKEVIRTUAL"); |
| isMethodHandle = true; |
| break; |
| case Opcodes.H_NEWINVOKESPECIAL: |
| stringBuilder.append("NEWINVOKESPECIAL"); |
| isMethodHandle = true; |
| break; |
| default: |
| throw new IllegalArgumentException(); |
| } |
| stringBuilder.append('\n'); |
| stringBuilder.append(tab3); |
| appendDescriptor(INTERNAL_NAME, handle.getOwner()); |
| stringBuilder.append('.'); |
| stringBuilder.append(handle.getName()); |
| if (!isMethodHandle) { |
| stringBuilder.append('('); |
| } |
| appendDescriptor(HANDLE_DESCRIPTOR, handle.getDesc()); |
| if (!isMethodHandle) { |
| stringBuilder.append(')'); |
| } |
| if (handle.isInterface()) { |
| stringBuilder.append(" itf"); |
| } |
| } |
| |
| /** |
| * Appends a comma to {@link #stringBuilder} if the given number is strictly positive. |
| * |
| * @param numValues a number of 'values visited so far', for instance the number of annotation |
| * values visited so far in an annotation visitor. |
| */ |
| private void maybeAppendComma(final int numValues) { |
| if (numValues > 0) { |
| stringBuilder.append(", "); |
| } |
| } |
| |
| /** |
| * Appends a string representation of the given type reference to {@link #stringBuilder}. |
| * |
| * @param typeRef a type reference. See {@link TypeReference}. |
| */ |
| private void appendTypeReference(final int typeRef) { |
| TypeReference typeReference = new TypeReference(typeRef); |
| switch (typeReference.getSort()) { |
| case TypeReference.CLASS_TYPE_PARAMETER: |
| stringBuilder.append("CLASS_TYPE_PARAMETER ").append(typeReference.getTypeParameterIndex()); |
| break; |
| case TypeReference.METHOD_TYPE_PARAMETER: |
| stringBuilder |
| .append("METHOD_TYPE_PARAMETER ") |
| .append(typeReference.getTypeParameterIndex()); |
| break; |
| case TypeReference.CLASS_EXTENDS: |
| stringBuilder.append("CLASS_EXTENDS ").append(typeReference.getSuperTypeIndex()); |
| break; |
| case TypeReference.CLASS_TYPE_PARAMETER_BOUND: |
| stringBuilder |
| .append("CLASS_TYPE_PARAMETER_BOUND ") |
| .append(typeReference.getTypeParameterIndex()) |
| .append(", ") |
| .append(typeReference.getTypeParameterBoundIndex()); |
| break; |
| case TypeReference.METHOD_TYPE_PARAMETER_BOUND: |
| stringBuilder |
| .append("METHOD_TYPE_PARAMETER_BOUND ") |
| .append(typeReference.getTypeParameterIndex()) |
| .append(", ") |
| .append(typeReference.getTypeParameterBoundIndex()); |
| break; |
| case TypeReference.FIELD: |
| stringBuilder.append("FIELD"); |
| break; |
| case TypeReference.METHOD_RETURN: |
| stringBuilder.append("METHOD_RETURN"); |
| break; |
| case TypeReference.METHOD_RECEIVER: |
| stringBuilder.append("METHOD_RECEIVER"); |
| break; |
| case TypeReference.METHOD_FORMAL_PARAMETER: |
| stringBuilder |
| .append("METHOD_FORMAL_PARAMETER ") |
| .append(typeReference.getFormalParameterIndex()); |
| break; |
| case TypeReference.THROWS: |
| stringBuilder.append("THROWS ").append(typeReference.getExceptionIndex()); |
| break; |
| case TypeReference.LOCAL_VARIABLE: |
| stringBuilder.append("LOCAL_VARIABLE"); |
| break; |
| case TypeReference.RESOURCE_VARIABLE: |
| stringBuilder.append("RESOURCE_VARIABLE"); |
| break; |
| case TypeReference.EXCEPTION_PARAMETER: |
| stringBuilder.append("EXCEPTION_PARAMETER ").append(typeReference.getTryCatchBlockIndex()); |
| break; |
| case TypeReference.INSTANCEOF: |
| stringBuilder.append("INSTANCEOF"); |
| break; |
| case TypeReference.NEW: |
| stringBuilder.append("NEW"); |
| break; |
| case TypeReference.CONSTRUCTOR_REFERENCE: |
| stringBuilder.append("CONSTRUCTOR_REFERENCE"); |
| break; |
| case TypeReference.METHOD_REFERENCE: |
| stringBuilder.append("METHOD_REFERENCE"); |
| break; |
| case TypeReference.CAST: |
| stringBuilder.append("CAST ").append(typeReference.getTypeArgumentIndex()); |
| break; |
| case TypeReference.CONSTRUCTOR_INVOCATION_TYPE_ARGUMENT: |
| stringBuilder |
| .append("CONSTRUCTOR_INVOCATION_TYPE_ARGUMENT ") |
| .append(typeReference.getTypeArgumentIndex()); |
| break; |
| case TypeReference.METHOD_INVOCATION_TYPE_ARGUMENT: |
| stringBuilder |
| .append("METHOD_INVOCATION_TYPE_ARGUMENT ") |
| .append(typeReference.getTypeArgumentIndex()); |
| break; |
| case TypeReference.CONSTRUCTOR_REFERENCE_TYPE_ARGUMENT: |
| stringBuilder |
| .append("CONSTRUCTOR_REFERENCE_TYPE_ARGUMENT ") |
| .append(typeReference.getTypeArgumentIndex()); |
| break; |
| case TypeReference.METHOD_REFERENCE_TYPE_ARGUMENT: |
| stringBuilder |
| .append("METHOD_REFERENCE_TYPE_ARGUMENT ") |
| .append(typeReference.getTypeArgumentIndex()); |
| break; |
| default: |
| throw new IllegalArgumentException(); |
| } |
| } |
| |
| /** |
| * Appends the given stack map frame types to {@link #stringBuilder}. |
| * |
| * @param numTypes the number of stack map frame types in 'frameTypes'. |
| * @param frameTypes an array of stack map frame types, in the format described in {@link |
| * org.apache.tapestry5.internal.plastic.asm.MethodVisitor#visitFrame}. |
| */ |
| private void appendFrameTypes(final int numTypes, final Object[] frameTypes) { |
| for (int i = 0; i < numTypes; ++i) { |
| if (i > 0) { |
| stringBuilder.append(' '); |
| } |
| if (frameTypes[i] instanceof String) { |
| String descriptor = (String) frameTypes[i]; |
| if (descriptor.charAt(0) == '[') { |
| appendDescriptor(FIELD_DESCRIPTOR, descriptor); |
| } else { |
| appendDescriptor(INTERNAL_NAME, descriptor); |
| } |
| } else if (frameTypes[i] instanceof Integer) { |
| switch (((Integer) frameTypes[i]).intValue()) { |
| case 0: |
| appendDescriptor(FIELD_DESCRIPTOR, "T"); |
| break; |
| case 1: |
| appendDescriptor(FIELD_DESCRIPTOR, "I"); |
| break; |
| case 2: |
| appendDescriptor(FIELD_DESCRIPTOR, "F"); |
| break; |
| case 3: |
| appendDescriptor(FIELD_DESCRIPTOR, "D"); |
| break; |
| case 4: |
| appendDescriptor(FIELD_DESCRIPTOR, "J"); |
| break; |
| case 5: |
| appendDescriptor(FIELD_DESCRIPTOR, "N"); |
| break; |
| case 6: |
| appendDescriptor(FIELD_DESCRIPTOR, "U"); |
| break; |
| default: |
| throw new IllegalArgumentException(); |
| } |
| } else { |
| appendLabel((Label) frameTypes[i]); |
| } |
| } |
| } |
| |
| /** |
| * Creates and adds to {@link #text} a new {@link Textifier}, followed by the given string. |
| * |
| * @param endText the text to add to {@link #text} after the textifier. May be {@literal null}. |
| * @return the newly created {@link Textifier}. |
| */ |
| private Textifier addNewTextifier(final String endText) { |
| Textifier textifier = createTextifier(); |
| text.add(textifier.getText()); |
| if (endText != null) { |
| text.add(endText); |
| } |
| return textifier; |
| } |
| |
| /** |
| * Creates a new {@link Textifier}. |
| * |
| * @return a new {@link Textifier}. |
| */ |
| protected Textifier createTextifier() { |
| return new Textifier(); |
| } |
| } |
