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Diffstat (limited to 'tools/external/asm/org/objectweb/asm/xml/ASMContentHandler.java')
| -rw-r--r-- | tools/external/asm/org/objectweb/asm/xml/ASMContentHandler.java | 1215 |
1 files changed, 1215 insertions, 0 deletions
diff --git a/tools/external/asm/org/objectweb/asm/xml/ASMContentHandler.java b/tools/external/asm/org/objectweb/asm/xml/ASMContentHandler.java new file mode 100644 index 000000000..1f6fee0ff --- /dev/null +++ b/tools/external/asm/org/objectweb/asm/xml/ASMContentHandler.java @@ -0,0 +1,1215 @@ +/*** + * ASM XML Adapter + * Copyright (c) 2004, Eugene Kuleshov + * 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.objectweb.asm.xml; + +import java.io.IOException; +import java.io.OutputStream; +import java.util.ArrayList; +import java.util.HashMap; +import java.util.Iterator; +import java.util.List; +import java.util.Map; + +import org.objectweb.asm.AnnotationVisitor; +import org.objectweb.asm.ClassVisitor; +import org.objectweb.asm.ClassWriter; +import org.objectweb.asm.FieldVisitor; +import org.objectweb.asm.MethodVisitor; +import org.objectweb.asm.Opcodes; +import org.objectweb.asm.Label; +import org.objectweb.asm.Type; + +import org.xml.sax.Attributes; +import org.xml.sax.SAXException; +import org.xml.sax.helpers.DefaultHandler; + +/** + * A {@link org.xml.sax.ContentHandler ContentHandler} that transforms XML + * document into Java class file. This class can be feeded by any kind of SAX + * 2.0 event producers, e.g. XML parser, XSLT or XPath engines, or custom code. + * + * @see org.objectweb.asm.xml.SAXClassAdapter + * @see org.objectweb.asm.xml.Processor + * + * @author Eugene Kuleshov + */ +public class ASMContentHandler extends DefaultHandler implements Opcodes { + /** + * Stack of the intermediate processing contexts. + */ + private List stack = new ArrayList(); + + /** + * Complete name of the current element. + */ + private String match = ""; + + /** + * <tt>true</tt> if the maximum stack size and number of local variables + * must be automatically computed. + */ + protected boolean computeMax; + + /** + * Output stream to write result bytecode. + */ + protected OutputStream os; + + /** + * Current instance of the {@link ClassWriter ClassWriter} used to write + * class bytecode. + */ + protected ClassWriter cw; + + /** + * Map of the active {@link Label Label} instances for current method. + */ + protected Map labels; + + private static final String BASE = "class"; + + private final RuleSet RULES = new RuleSet(); + { + RULES.add(BASE, new ClassRule()); + RULES.add(BASE + "/interfaces/interface", new InterfaceRule()); + RULES.add(BASE + "/interfaces", new InterfacesRule()); + RULES.add(BASE + "/outerclass", new OuterClassRule()); + RULES.add(BASE + "/innerclass", new InnerClassRule()); + RULES.add(BASE + "/source", new SourceRule()); + RULES.add(BASE + "/field", new FieldRule()); + + RULES.add(BASE + "/method", new MethodRule()); + RULES.add(BASE + "/method/exceptions/exception", new ExceptionRule()); + RULES.add(BASE + "/method/exceptions", new ExceptionsRule()); + + RULES.add(BASE + "/method/annotationDefault", + new AnnotationDefaultRule()); + + RULES.add(BASE + "/method/code/*", new OpcodesRule()); // opcodes + + RULES.add(BASE + "/method/code/TABLESWITCH", new TableSwitchRule()); + RULES.add(BASE + "/method/code/TABLESWITCH/label", + new TableSwitchLabelRule()); + RULES.add(BASE + "/method/code/LOOKUPSWITCH", new LookupSwitchRule()); + RULES.add(BASE + "/method/code/LOOKUPSWITCH/label", + new LookupSwitchLabelRule()); + + RULES.add(BASE + "/method/code/Label", new LabelRule()); + RULES.add(BASE + "/method/code/TryCatch", new TryCatchRule()); + RULES.add(BASE + "/method/code/LineNumber", new LineNumberRule()); + RULES.add(BASE + "/method/code/LocalVar", new LocalVarRule()); + RULES.add(BASE + "/method/code/Max", new MaxRule()); + + RULES.add("*/annotation", new AnnotationRule()); + RULES.add("*/parameterAnnotation", new AnnotationParameterRule()); + RULES.add("*/annotationValue", new AnnotationValueRule()); + RULES.add("*/annotationValueAnnotation", + new AnnotationValueAnnotationRule()); + RULES.add("*/annotationValueEnum", new AnnotationValueEnumRule()); + RULES.add("*/annotationValueArray", new AnnotationValueArrayRule()); + }; + + private static interface OpcodeGroup { + public static final int INSN = 0; + public static final int INSN_INT = 1; + public static final int INSN_VAR = 2; + public static final int INSN_TYPE = 3; + public static final int INSN_FIELD = 4; + public static final int INSN_METHOD = 5; + public static final int INSN_JUMP = 6; + public static final int INSN_LDC = 7; + public static final int INSN_IINC = 8; + public static final int INSN_MULTIANEWARRAY = 9; + } + + /** + * Map of the opcode names to opcode and opcode group + */ + static final Map OPCODES = new HashMap(); + static { + OPCODES.put("NOP", new Opcode(NOP, OpcodeGroup.INSN)); + OPCODES.put("ACONST_NULL", new Opcode(ACONST_NULL, OpcodeGroup.INSN)); + OPCODES.put("ICONST_M1", new Opcode(ICONST_M1, OpcodeGroup.INSN)); + OPCODES.put("ICONST_0", new Opcode(ICONST_0, OpcodeGroup.INSN)); + OPCODES.put("ICONST_1", new Opcode(ICONST_1, OpcodeGroup.INSN)); + OPCODES.put("ICONST_2", new Opcode(ICONST_2, OpcodeGroup.INSN)); + OPCODES.put("ICONST_3", new Opcode(ICONST_3, OpcodeGroup.INSN)); + OPCODES.put("ICONST_4", new Opcode(ICONST_4, OpcodeGroup.INSN)); + OPCODES.put("ICONST_5", new Opcode(ICONST_5, OpcodeGroup.INSN)); + OPCODES.put("LCONST_0", new Opcode(LCONST_0, OpcodeGroup.INSN)); + OPCODES.put("LCONST_1", new Opcode(LCONST_1, OpcodeGroup.INSN)); + OPCODES.put("FCONST_0", new Opcode(FCONST_0, OpcodeGroup.INSN)); + OPCODES.put("FCONST_1", new Opcode(FCONST_1, OpcodeGroup.INSN)); + OPCODES.put("FCONST_2", new Opcode(FCONST_2, OpcodeGroup.INSN)); + OPCODES.put("DCONST_0", new Opcode(DCONST_0, OpcodeGroup.INSN)); + OPCODES.put("DCONST_1", new Opcode(DCONST_1, OpcodeGroup.INSN)); + OPCODES.put("BIPUSH", new Opcode(BIPUSH, OpcodeGroup.INSN_INT)); + OPCODES.put("SIPUSH", new Opcode(SIPUSH, OpcodeGroup.INSN_INT)); + OPCODES.put("LDC", new Opcode(LDC, OpcodeGroup.INSN_LDC)); + OPCODES.put("ILOAD", new Opcode(ILOAD, OpcodeGroup.INSN_VAR)); + OPCODES.put("LLOAD", new Opcode(LLOAD, OpcodeGroup.INSN_VAR)); + OPCODES.put("FLOAD", new Opcode(FLOAD, OpcodeGroup.INSN_VAR)); + OPCODES.put("DLOAD", new Opcode(DLOAD, OpcodeGroup.INSN_VAR)); + OPCODES.put("ALOAD", new Opcode(ALOAD, OpcodeGroup.INSN_VAR)); + OPCODES.put("IALOAD", new Opcode(IALOAD, OpcodeGroup.INSN)); + OPCODES.put("LALOAD", new Opcode(LALOAD, OpcodeGroup.INSN)); + OPCODES.put("FALOAD", new Opcode(FALOAD, OpcodeGroup.INSN)); + OPCODES.put("DALOAD", new Opcode(DALOAD, OpcodeGroup.INSN)); + OPCODES.put("AALOAD", new Opcode(AALOAD, OpcodeGroup.INSN)); + OPCODES.put("BALOAD", new Opcode(BALOAD, OpcodeGroup.INSN)); + OPCODES.put("CALOAD", new Opcode(CALOAD, OpcodeGroup.INSN)); + OPCODES.put("SALOAD", new Opcode(SALOAD, OpcodeGroup.INSN)); + OPCODES.put("ISTORE", new Opcode(ISTORE, OpcodeGroup.INSN_VAR)); + OPCODES.put("LSTORE", new Opcode(LSTORE, OpcodeGroup.INSN_VAR)); + OPCODES.put("FSTORE", new Opcode(FSTORE, OpcodeGroup.INSN_VAR)); + OPCODES.put("DSTORE", new Opcode(DSTORE, OpcodeGroup.INSN_VAR)); + OPCODES.put("ASTORE", new Opcode(ASTORE, OpcodeGroup.INSN_VAR)); + OPCODES.put("IASTORE", new Opcode(IASTORE, OpcodeGroup.INSN)); + OPCODES.put("LASTORE", new Opcode(LASTORE, OpcodeGroup.INSN)); + OPCODES.put("FASTORE", new Opcode(FASTORE, OpcodeGroup.INSN)); + OPCODES.put("DASTORE", new Opcode(DASTORE, OpcodeGroup.INSN)); + OPCODES.put("AASTORE", new Opcode(AASTORE, OpcodeGroup.INSN)); + OPCODES.put("BASTORE", new Opcode(BASTORE, OpcodeGroup.INSN)); + OPCODES.put("CASTORE", new Opcode(CASTORE, OpcodeGroup.INSN)); + OPCODES.put("SASTORE", new Opcode(SASTORE, OpcodeGroup.INSN)); + OPCODES.put("POP", new Opcode(POP, OpcodeGroup.INSN)); + OPCODES.put("POP2", new Opcode(POP2, OpcodeGroup.INSN)); + OPCODES.put("DUP", new Opcode(DUP, OpcodeGroup.INSN)); + OPCODES.put("DUP_X1", new Opcode(DUP_X1, OpcodeGroup.INSN)); + OPCODES.put("DUP_X2", new Opcode(DUP_X2, OpcodeGroup.INSN)); + OPCODES.put("DUP2", new Opcode(DUP2, OpcodeGroup.INSN)); + OPCODES.put("DUP2_X1", new Opcode(DUP2_X1, OpcodeGroup.INSN)); + OPCODES.put("DUP2_X2", new Opcode(DUP2_X2, OpcodeGroup.INSN)); + OPCODES.put("SWAP", new Opcode(SWAP, OpcodeGroup.INSN)); + OPCODES.put("IADD", new Opcode(IADD, OpcodeGroup.INSN)); + OPCODES.put("LADD", new Opcode(LADD, OpcodeGroup.INSN)); + OPCODES.put("FADD", new Opcode(FADD, OpcodeGroup.INSN)); + OPCODES.put("DADD", new Opcode(DADD, OpcodeGroup.INSN)); + OPCODES.put("ISUB", new Opcode(ISUB, OpcodeGroup.INSN)); + OPCODES.put("LSUB", new Opcode(LSUB, OpcodeGroup.INSN)); + OPCODES.put("FSUB", new Opcode(FSUB, OpcodeGroup.INSN)); + OPCODES.put("DSUB", new Opcode(DSUB, OpcodeGroup.INSN)); + OPCODES.put("IMUL", new Opcode(IMUL, OpcodeGroup.INSN)); + OPCODES.put("LMUL", new Opcode(LMUL, OpcodeGroup.INSN)); + OPCODES.put("FMUL", new Opcode(FMUL, OpcodeGroup.INSN)); + OPCODES.put("DMUL", new Opcode(DMUL, OpcodeGroup.INSN)); + OPCODES.put("IDIV", new Opcode(IDIV, OpcodeGroup.INSN)); + OPCODES.put("LDIV", new Opcode(LDIV, OpcodeGroup.INSN)); + OPCODES.put("FDIV", new Opcode(FDIV, OpcodeGroup.INSN)); + OPCODES.put("DDIV", new Opcode(DDIV, OpcodeGroup.INSN)); + OPCODES.put("IREM", new Opcode(IREM, OpcodeGroup.INSN)); + OPCODES.put("LREM", new Opcode(LREM, OpcodeGroup.INSN)); + OPCODES.put("FREM", new Opcode(FREM, OpcodeGroup.INSN)); + OPCODES.put("DREM", new Opcode(DREM, OpcodeGroup.INSN)); + OPCODES.put("INEG", new Opcode(INEG, OpcodeGroup.INSN)); + OPCODES.put("LNEG", new Opcode(LNEG, OpcodeGroup.INSN)); + OPCODES.put("FNEG", new Opcode(FNEG, OpcodeGroup.INSN)); + OPCODES.put("DNEG", new Opcode(DNEG, OpcodeGroup.INSN)); + OPCODES.put("ISHL", new Opcode(ISHL, OpcodeGroup.INSN)); + OPCODES.put("LSHL", new Opcode(LSHL, OpcodeGroup.INSN)); + OPCODES.put("ISHR", new Opcode(ISHR, OpcodeGroup.INSN)); + OPCODES.put("LSHR", new Opcode(LSHR, OpcodeGroup.INSN)); + OPCODES.put("IUSHR", new Opcode(IUSHR, OpcodeGroup.INSN)); + OPCODES.put("LUSHR", new Opcode(LUSHR, OpcodeGroup.INSN)); + OPCODES.put("IAND", new Opcode(IAND, OpcodeGroup.INSN)); + OPCODES.put("LAND", new Opcode(LAND, OpcodeGroup.INSN)); + OPCODES.put("IOR", new Opcode(IOR, OpcodeGroup.INSN)); + OPCODES.put("LOR", new Opcode(LOR, OpcodeGroup.INSN)); + OPCODES.put("IXOR", new Opcode(IXOR, OpcodeGroup.INSN)); + OPCODES.put("LXOR", new Opcode(LXOR, OpcodeGroup.INSN)); + OPCODES.put("IINC", new Opcode(IINC, OpcodeGroup.INSN_IINC)); + OPCODES.put("I2L", new Opcode(I2L, OpcodeGroup.INSN)); + OPCODES.put("I2F", new Opcode(I2F, OpcodeGroup.INSN)); + OPCODES.put("I2D", new Opcode(I2D, OpcodeGroup.INSN)); + OPCODES.put("L2I", new Opcode(L2I, OpcodeGroup.INSN)); + OPCODES.put("L2F", new Opcode(L2F, OpcodeGroup.INSN)); + OPCODES.put("L2D", new Opcode(L2D, OpcodeGroup.INSN)); + OPCODES.put("F2I", new Opcode(F2I, OpcodeGroup.INSN)); + OPCODES.put("F2L", new Opcode(F2L, OpcodeGroup.INSN)); + OPCODES.put("F2D", new Opcode(F2D, OpcodeGroup.INSN)); + OPCODES.put("D2I", new Opcode(D2I, OpcodeGroup.INSN)); + OPCODES.put("D2L", new Opcode(D2L, OpcodeGroup.INSN)); + OPCODES.put("D2F", new Opcode(D2F, OpcodeGroup.INSN)); + OPCODES.put("I2B", new Opcode(I2B, OpcodeGroup.INSN)); + OPCODES.put("I2C", new Opcode(I2C, OpcodeGroup.INSN)); + OPCODES.put("I2S", new Opcode(I2S, OpcodeGroup.INSN)); + OPCODES.put("LCMP", new Opcode(LCMP, OpcodeGroup.INSN)); + OPCODES.put("FCMPL", new Opcode(FCMPL, OpcodeGroup.INSN)); + OPCODES.put("FCMPG", new Opcode(FCMPG, OpcodeGroup.INSN)); + OPCODES.put("DCMPL", new Opcode(DCMPL, OpcodeGroup.INSN)); + OPCODES.put("DCMPG", new Opcode(DCMPG, OpcodeGroup.INSN)); + OPCODES.put("IFEQ", new Opcode(IFEQ, OpcodeGroup.INSN_JUMP)); + OPCODES.put("IFNE", new Opcode(IFNE, OpcodeGroup.INSN_JUMP)); + OPCODES.put("IFLT", new Opcode(IFLT, OpcodeGroup.INSN_JUMP)); + OPCODES.put("IFGE", new Opcode(IFGE, OpcodeGroup.INSN_JUMP)); + OPCODES.put("IFGT", new Opcode(IFGT, OpcodeGroup.INSN_JUMP)); + OPCODES.put("IFLE", new Opcode(IFLE, OpcodeGroup.INSN_JUMP)); + OPCODES.put("IF_ICMPEQ", new Opcode(IF_ICMPEQ, OpcodeGroup.INSN_JUMP)); + OPCODES.put("IF_ICMPNE", new Opcode(IF_ICMPNE, OpcodeGroup.INSN_JUMP)); + OPCODES.put("IF_ICMPLT", new Opcode(IF_ICMPLT, OpcodeGroup.INSN_JUMP)); + OPCODES.put("IF_ICMPGE", new Opcode(IF_ICMPGE, OpcodeGroup.INSN_JUMP)); + OPCODES.put("IF_ICMPGT", new Opcode(IF_ICMPGT, OpcodeGroup.INSN_JUMP)); + OPCODES.put("IF_ICMPLE", new Opcode(IF_ICMPLE, OpcodeGroup.INSN_JUMP)); + OPCODES.put("IF_ACMPEQ", new Opcode(IF_ACMPEQ, OpcodeGroup.INSN_JUMP)); + OPCODES.put("IF_ACMPNE", new Opcode(IF_ACMPNE, OpcodeGroup.INSN_JUMP)); + OPCODES.put("GOTO", new Opcode(GOTO, OpcodeGroup.INSN_JUMP)); + OPCODES.put("JSR", new Opcode(JSR, OpcodeGroup.INSN_JUMP)); + OPCODES.put("RET", new Opcode(RET, OpcodeGroup.INSN_VAR)); + // OPCODES.put( "TABLESWITCH", new Opcode( TABLESWITCH, + // "visiTableSwitchInsn")); + // OPCODES.put( "LOOKUPSWITCH", new Opcode( LOOKUPSWITCH, + // "visitLookupSwitch")); + OPCODES.put("IRETURN", new Opcode(IRETURN, OpcodeGroup.INSN)); + OPCODES.put("LRETURN", new Opcode(LRETURN, OpcodeGroup.INSN)); + OPCODES.put("FRETURN", new Opcode(FRETURN, OpcodeGroup.INSN)); + OPCODES.put("DRETURN", new Opcode(DRETURN, OpcodeGroup.INSN)); + OPCODES.put("ARETURN", new Opcode(ARETURN, OpcodeGroup.INSN)); + OPCODES.put("RETURN", new Opcode(RETURN, OpcodeGroup.INSN)); + OPCODES.put("GETSTATIC", new Opcode(GETSTATIC, OpcodeGroup.INSN_FIELD)); + OPCODES.put("PUTSTATIC", new Opcode(PUTSTATIC, OpcodeGroup.INSN_FIELD)); + OPCODES.put("GETFIELD", new Opcode(GETFIELD, OpcodeGroup.INSN_FIELD)); + OPCODES.put("PUTFIELD", new Opcode(PUTFIELD, OpcodeGroup.INSN_FIELD)); + OPCODES.put("INVOKEVIRTUAL", new Opcode(INVOKEVIRTUAL, + OpcodeGroup.INSN_METHOD)); + OPCODES.put("INVOKESPECIAL", new Opcode(INVOKESPECIAL, + OpcodeGroup.INSN_METHOD)); + OPCODES.put("INVOKESTATIC", new Opcode(INVOKESTATIC, + OpcodeGroup.INSN_METHOD)); + OPCODES.put("INVOKEINTERFACE", new Opcode(INVOKEINTERFACE, + OpcodeGroup.INSN_METHOD)); + OPCODES.put("NEW", new Opcode(NEW, OpcodeGroup.INSN_TYPE)); + OPCODES.put("NEWARRAY", new Opcode(NEWARRAY, OpcodeGroup.INSN_INT)); + OPCODES.put("ANEWARRAY", new Opcode(ANEWARRAY, OpcodeGroup.INSN_TYPE)); + OPCODES.put("ARRAYLENGTH", new Opcode(ARRAYLENGTH, OpcodeGroup.INSN)); + OPCODES.put("ATHROW", new Opcode(ATHROW, OpcodeGroup.INSN)); + OPCODES.put("CHECKCAST", new Opcode(CHECKCAST, OpcodeGroup.INSN_TYPE)); + OPCODES.put("INSTANCEOF", new Opcode(INSTANCEOF, OpcodeGroup.INSN_TYPE)); + OPCODES.put("MONITORENTER", new Opcode(MONITORENTER, OpcodeGroup.INSN)); + OPCODES.put("MONITOREXIT", new Opcode(MONITOREXIT, OpcodeGroup.INSN)); + OPCODES.put("MULTIANEWARRAY", new Opcode(MULTIANEWARRAY, + OpcodeGroup.INSN_MULTIANEWARRAY)); + OPCODES.put("IFNULL", new Opcode(IFNULL, OpcodeGroup.INSN_JUMP)); + OPCODES.put("IFNONNULL", new Opcode(IFNONNULL, OpcodeGroup.INSN_JUMP)); + } + + /** + * Constructs a new {@link ASMContentHandler ASMContentHandler} object. + * + * @param os output stream to write generated class. + * @param computeMax <tt>true</tt> if the maximum stack size and the + * maximum number of local variables must be automatically computed. + * This value is passed to {@link ClassWriter ClassWriter} instance. + */ + public ASMContentHandler(OutputStream os, boolean computeMax) { + this.os = os; + this.computeMax = computeMax; + } + + /** + * Returns the bytecode of the class that was build with underneath class + * writer. + * + * @return the bytecode of the class that was build with underneath class + * writer or null if there are no classwriter created. + */ + public byte[] toByteArray() { + return cw == null ? null : cw.toByteArray(); + } + + /** + * Process notification of the start of an XML element being reached. + * + * @param ns - The Namespace URI, or the empty string if the element has no + * Namespace URI or if Namespace processing is not being performed. + * @param localName - The local name (without prefix), or the empty string + * if Namespace processing is not being performed. + * @param qName - The qualified name (with prefix), or the empty string if + * qualified names are not available. + * @param list - The attributes attached to the element. If there are no + * attributes, it shall be an empty Attributes object. + * @exception SAXException if a parsing error is to be reported + */ + public final void startElement( + String ns, + String localName, + String qName, + Attributes list) throws SAXException + { + // the actual element name is either in localName or qName, depending + // on whether the parser is namespace aware + String name = localName; + if (name == null || name.length() < 1) { + name = qName; + } + + // Compute the current matching rule + StringBuffer sb = new StringBuffer(match); + if (match.length() > 0) { + sb.append('/'); + } + sb.append(name); + match = sb.toString(); + + // Fire "begin" events for all relevant rules + Rule r = (Rule) RULES.match(match); + if (r != null) + r.begin(name, list); + } + + /** + * Process notification of the end of an XML element being reached. + * + * @param ns - The Namespace URI, or the empty string if the element has no + * Namespace URI or if Namespace processing is not being performed. + * @param localName - The local name (without prefix), or the empty string + * if Namespace processing is not being performed. + * @param qName - The qualified XML 1.0 name (with prefix), or the empty + * string if qualified names are not available. + * + * @exception SAXException if a parsing error is to be reported + */ + public final void endElement(String ns, String localName, String qName) + throws SAXException + { + // the actual element name is either in localName or qName, depending + // on whether the parser is namespace aware + String name = localName; + if (name == null || name.length() < 1) { + name = qName; + } + + // Fire "end" events for all relevant rules in reverse order + Rule r = (Rule) RULES.match(match); + if (r != null) + r.end(name); + + // Recover the previous match expression + int slash = match.lastIndexOf('/'); + if (slash >= 0) { + match = match.substring(0, slash); + } else { + match = ""; + } + } + + /** + * Process notification of the end of a document and write generated + * bytecode into output stream. + * + * @exception SAXException if parsing or writing error is to be reported. + */ + public final void endDocument() throws SAXException { + try { + os.write(cw.toByteArray()); + } catch (IOException ex) { + throw new SAXException(ex.toString(), ex); + } + } + + /** + * Return the top object on the stack without removing it. If there are no + * objects on the stack, return <code>null</code>. + * + * @return the top object on the stack without removing it. + */ + final Object peek() { + return stack.size() == 0 ? null : stack.get(stack.size() - 1); + } + + /** + * Return the n'th object down the stack, where 0 is the top element and + * [getCount()-1] is the bottom element. If the specified index is out of + * range, return <code>null</code>. + * + * @param n Index of the desired element, where 0 is the top of the stack, 1 + * is the next element down, and so on. + * @return the n'th object down the stack. + */ + final Object peek(int n) { + return stack.size() < (n + 1) ? null : stack.get(n); + } + + /** + * Pop the top object off of the stack, and return it. If there are no + * objects on the stack, return <code>null</code>. + * + * @return the top object off of the stack. + */ + final Object pop() { + return stack.size() == 0 ? null : stack.remove(stack.size() - 1); + } + + /** + * Push a new object onto the top of the object stack. + * + * @param object The new object + */ + final void push(Object object) { + stack.add(object); + } + + private static final class RuleSet { + private Map rules = new HashMap(); + + private List lpatterns = new ArrayList(); + + private List rpatterns = new ArrayList(); + + public void add(String path, Object rule) { + String pattern = path; + if (path.startsWith("*/")) { + pattern = path.substring(1); + lpatterns.add(pattern); + } else if (path.endsWith("/*")) { + pattern = path.substring(0, path.length() - 1); + rpatterns.add(pattern); + } + rules.put(pattern, rule); + } + + public Object match(String path) { + if (rules.containsKey(path)) { + return rules.get(path); + } + + int n = path.lastIndexOf('/'); + for (Iterator it = lpatterns.iterator(); it.hasNext();) { + String pattern = (String) it.next(); + if (path.substring(n).endsWith(pattern)) { + return rules.get(pattern); + } + } + + for (Iterator it = rpatterns.iterator(); it.hasNext();) { + String pattern = (String) it.next(); + if (path.startsWith(pattern)) { + return rules.get(pattern); + } + } + + return null; + } + + } + + /** + * Rule + */ + protected abstract class Rule { + + public void begin(String name, Attributes attrs) { + } + + public void end(String name) { + } + + protected final Object getValue(String desc, String val) { + Object value = null; + if (val != null) { + if (desc.equals("Ljava/lang/String;")) { + value = decode(val); + } else if ("Ljava/lang/Integer;".equals(desc) + || "I".equals(desc) || "S".equals(desc) + || "B".equals(desc) || "C".equals(desc) + || desc.equals("Z")) + { + value = new Integer(val); + + } else if ("Ljava/lang/Short;".equals(desc)) { + value = new Short(val); + + } else if ("Ljava/lang/Byte;".equals(desc)) { + value = new Byte(val); + + } else if ("Ljava/lang/Character;".equals(desc)) { + value = new Character(decode(val).charAt(0)); + + } else if ("Ljava/lang/Boolean;".equals(desc)) { + value = Boolean.valueOf(val); + + // } else if ("Ljava/lang/Integer;".equals(desc) + // || desc.equals("I")) + // { + // value = new Integer(val); + // } else if ("Ljava/lang/Character;".equals(desc) + // || desc.equals("C")) + // { + // value = new Character(decode(val).charAt(0)); + // } else if ("Ljava/lang/Short;".equals(desc) || + // desc.equals("S")) + // { + // value = Short.valueOf(val); + // } else if ("Ljava/lang/Byte;".equals(desc) || + // desc.equals("B")) + // { + // value = Byte.valueOf(val); + + } else if ("Ljava/lang/Long;".equals(desc) || desc.equals("J")) + { + value = new Long(val); + } else if ("Ljava/lang/Float;".equals(desc) || desc.equals("F")) + { + value = new Float(val); + } else if ("Ljava/lang/Double;".equals(desc) + || desc.equals("D")) + { + value = new Double(val); + } else if (Type.getDescriptor(Type.class).equals(desc)) { + value = Type.getType(val); + + // } else if ("[I".equals(desc)) { + // value = new int[0]; // TODO + // } else if ("[C".equals(desc)) { + // value = new char[0]; // TODO + // } else if ("[Z".equals(desc)) { + // value = new boolean[0]; // TODO + // } else if ("[S".equals(desc)) { + // value = new short[0]; // TODO + // } else if ("[B".equals(desc)) { + // value = new byte[0]; // TODO + // } else if ("[J".equals(desc)) { + // value = new long[0]; // TODO + // } else if ("[F".equals(desc)) { + // value = new float[0]; // TODO + // } else if ("[D".equals(desc)) { + // value = new double[0]; // TODO + + } else { + throw new RuntimeException("Invalid value:" + val + + " desc:" + desc + " ctx:" + this); + } + } + return value; + } + + private final String decode(String val) { + StringBuffer sb = new StringBuffer(val.length()); + try { + int n = 0; + while (n < val.length()) { + char c = val.charAt(n); + if (c == '\\') { + n++; + c = val.charAt(n); + if (c == '\\') { + sb.append('\\'); + } else { + n++; // skip 'u' + sb.append((char) Integer.parseInt(val.substring(n, + n + 4), 16)); + n += 3; + } + } else { + sb.append(c); + } + n++; + } + + } catch (RuntimeException ex) { + System.err.println(val + "\n" + ex.toString()); + ex.printStackTrace(); + throw ex; + } + return sb.toString(); + } + + protected final Label getLabel(Object label) { + Label lbl = (Label) labels.get(label); + if (lbl == null) { + lbl = new Label(); + labels.put(label, lbl); + } + return lbl; + } + + // TODO verify move to stack + protected final MethodVisitor getCodeVisitor() { + return (MethodVisitor) peek(); + } + + protected final int getAccess(String s) { + int access = 0; + if (s.indexOf("public") != -1) + access |= Opcodes.ACC_PUBLIC; + if (s.indexOf("private") != -1) + access |= Opcodes.ACC_PRIVATE; + if (s.indexOf("protected") != -1) + access |= Opcodes.ACC_PROTECTED; + if (s.indexOf("static") != -1) + access |= Opcodes.ACC_STATIC; + if (s.indexOf("final") != -1) + access |= Opcodes.ACC_FINAL; + if (s.indexOf("super") != -1) + access |= Opcodes.ACC_SUPER; + if (s.indexOf("synchronized") != -1) + access |= Opcodes.ACC_SYNCHRONIZED; + if (s.indexOf("volatile") != -1) + access |= Opcodes.ACC_VOLATILE; + if (s.indexOf("bridge") != -1) + access |= Opcodes.ACC_BRIDGE; + if (s.indexOf("varargs") != -1) + access |= Opcodes.ACC_VARARGS; + if (s.indexOf("transient") != -1) + access |= Opcodes.ACC_TRANSIENT; + if (s.indexOf("native") != -1) + access |= Opcodes.ACC_NATIVE; + if (s.indexOf("interface") != -1) + access |= Opcodes.ACC_INTERFACE; + if (s.indexOf("abstract") != -1) + access |= Opcodes.ACC_ABSTRACT; + if (s.indexOf("strict") != -1) + access |= Opcodes.ACC_STRICT; + if (s.indexOf("synthetic") != -1) + access |= Opcodes.ACC_SYNTHETIC; + if (s.indexOf("annotation") != -1) + access |= Opcodes.ACC_ANNOTATION; + if (s.indexOf("enum") != -1) + access |= Opcodes.ACC_ENUM; + if (s.indexOf("deprecated") != -1) + access |= Opcodes.ACC_DEPRECATED; + return access; + } + + } + + /** + * ClassRule + */ + private final class ClassRule extends Rule { + + public final void begin(String name, Attributes attrs) { + int major = Integer.parseInt(attrs.getValue("major")); + int minor = Integer.parseInt(attrs.getValue("minor")); + cw = new ClassWriter(computeMax); + Map vals = new HashMap(); + vals.put("version", new Integer(minor << 16 | major)); + vals.put("access", attrs.getValue("access")); + vals.put("name", attrs.getValue("name")); + vals.put("parent", attrs.getValue("parent")); + vals.put("source", attrs.getValue("source")); + vals.put("signature", attrs.getValue("signature")); + vals.put("interfaces", new ArrayList()); + push(vals); + // values will be extracted in InterfacesRule.end(); + } + + } + + private final class SourceRule extends Rule { + + public void begin(String name, Attributes attrs) { + String file = attrs.getValue("file"); + String debug = attrs.getValue("debug"); + cw.visitSource(file, debug); + } + + } + + /** + * InterfaceRule + */ + private final class InterfaceRule extends Rule { + + public final void begin(String name, Attributes attrs) { + ((List) ((Map) peek()).get("interfaces")).add(attrs.getValue("name")); + } + + } + + /** + * InterfacesRule + */ + private final class InterfacesRule extends Rule { + + public final void end(String element) { + Map vals = (Map) pop(); + int version = ((Integer) vals.get("version")).intValue(); + int access = getAccess((String) vals.get("access")); + String name = (String) vals.get("name"); + String signature = (String) vals.get("signature"); + String parent = (String) vals.get("parent"); + List infs = (List) vals.get("interfaces"); + String[] interfaces = (String[]) infs.toArray(new String[infs.size()]); + cw.visit(version, access, name, signature, parent, interfaces); + push(cw); + } + + } + + /** + * OuterClassRule + */ + private final class OuterClassRule extends Rule { + + public final void begin(String element, Attributes attrs) { + String owner = attrs.getValue("owner"); + String name = attrs.getValue("name"); + String desc = attrs.getValue("desc"); + cw.visitOuterClass(owner, name, desc); + } + + } + + /** + * InnerClassRule + */ + private final class InnerClassRule extends Rule { + + public final void begin(String element, Attributes attrs) { + int access = getAccess(attrs.getValue("access")); + String name = attrs.getValue("name"); + String outerName = attrs.getValue("outerName"); + String innerName = attrs.getValue("innerName"); + cw.visitInnerClass(name, outerName, innerName, access); + } + + } + + /** + * FieldRule + */ + private final class FieldRule extends Rule { + + public final void begin(String element, Attributes attrs) { + int access = getAccess(attrs.getValue("access")); + String name = attrs.getValue("name"); + String signature = attrs.getValue("signature"); + String desc = attrs.getValue("desc"); + Object value = getValue(desc, attrs.getValue("value")); + push(cw.visitField(access, name, desc, signature, value)); + } + + public void end(String name) { + ((FieldVisitor) pop()).visitEnd(); + } + + } + + /** + * MethodRule + */ + private final class MethodRule extends Rule { + + public final void begin(String name, Attributes attrs) { + labels = new HashMap(); + Map vals = new HashMap(); + vals.put("access", attrs.getValue("access")); + vals.put("name", attrs.getValue("name")); + vals.put("desc", attrs.getValue("desc")); + vals.put("signature", attrs.getValue("signature")); + vals.put("exceptions", new ArrayList()); + push(vals); + // values will be extracted in ExceptionsRule.end(); + } + + public final void end(String name) { + ((MethodVisitor) pop()).visitEnd(); + labels = null; + } + + } + + /** + * ExceptionRule + */ + private final class ExceptionRule extends Rule { + + public final void begin(String name, Attributes attrs) { + ((List) ((Map) peek()).get("exceptions")).add(attrs.getValue("name")); + } + + } + + /** + * ExceptionsRule + */ + private final class ExceptionsRule extends Rule { + + public final void end(String element) { + Map vals = (Map) pop(); + int access = getAccess((String) vals.get("access")); + String name = (String) vals.get("name"); + String desc = (String) vals.get("desc"); + String signature = (String) vals.get("signature"); + List excs = (List) vals.get("exceptions"); + String[] exceptions = (String[]) excs.toArray(new String[excs.size()]); + + push(cw.visitMethod(access, name, desc, signature, exceptions)); + } + + } + + /** + * TableSwitchRule + */ + private class TableSwitchRule extends Rule { + + public final void begin(String name, Attributes attrs) { + Map vals = new HashMap(); + vals.put("min", attrs.getValue("min")); + vals.put("max", attrs.getValue("max")); + vals.put("dflt", attrs.getValue("dflt")); + vals.put("labels", new ArrayList()); + push(vals); + } + + public final void end(String name) { + Map vals = (Map) pop(); + int min = Integer.parseInt((String) vals.get("min")); + int max = Integer.parseInt((String) vals.get("max")); + Label dflt = getLabel(vals.get("dflt")); + List lbls = (List) vals.get("labels"); + Label[] labels = (Label[]) lbls.toArray(new Label[lbls.size()]); + getCodeVisitor().visitTableSwitchInsn(min, max, dflt, labels); + } + + } + + /** + * TableSwitchLabelRule + */ + private final class TableSwitchLabelRule extends Rule { + + public final void begin(String name, Attributes attrs) { + ((List) ((Map) peek()).get("labels")).add(getLabel(attrs.getValue("name"))); + } + + } + + /** + * LookupSwitchRule + */ + private final class LookupSwitchRule extends Rule { + + public final void begin(String name, Attributes attrs) { + Map vals = new HashMap(); + vals.put("dflt", attrs.getValue("dflt")); + vals.put("labels", new ArrayList()); + vals.put("keys", new ArrayList()); + push(vals); + } + + public final void end(String name) { + Map vals = (Map) pop(); + Label dflt = getLabel(vals.get("dflt")); + List keyList = (List) vals.get("keys"); + List lbls = (List) vals.get("labels"); + Label[] labels = (Label[]) lbls.toArray(new Label[lbls.size()]); + int[] keys = new int[keyList.size()]; + for (int i = 0; i < keys.length; i++) { + keys[i] = Integer.parseInt((String) keyList.get(i)); + } + getCodeVisitor().visitLookupSwitchInsn(dflt, keys, labels); + } + + } + + /** + * LookupSwitchLabelRule + */ + private final class LookupSwitchLabelRule extends Rule { + + public final void begin(String name, Attributes attrs) { + Map vals = (Map) peek(); + ((List) vals.get("labels")).add(getLabel(attrs.getValue("name"))); + ((List) vals.get("keys")).add(attrs.getValue("key")); + } + + } + + /** + * LabelRule + */ + private final class LabelRule extends Rule { + + public final void begin(String name, Attributes attrs) { + getCodeVisitor().visitLabel(getLabel(attrs.getValue("name"))); + } + + } + + /** + * TryCatchRule + */ + private final class TryCatchRule extends Rule { + + public final void begin(String name, Attributes attrs) { + Label start = getLabel(attrs.getValue("start")); + Label end = getLabel(attrs.getValue("end")); + Label handler = getLabel(attrs.getValue("handler")); + String type = attrs.getValue("type"); + getCodeVisitor().visitTryCatchBlock(start, end, handler, type); + } + + } + + /** + * LineNumberRule + */ + private final class LineNumberRule extends Rule { + + public final void begin(String name, Attributes attrs) { + int line = Integer.parseInt(attrs.getValue("line")); + Label start = getLabel(attrs.getValue("start")); + getCodeVisitor().visitLineNumber(line, start); + } + + } + + /** + * LocalVarRule + */ + private final class LocalVarRule extends Rule { + + public final void begin(String element, Attributes attrs) { + String name = attrs.getValue("name"); + String desc = attrs.getValue("desc"); + String signature = attrs.getValue("signature"); + Label start = getLabel(attrs.getValue("start")); + Label end = getLabel(attrs.getValue("end")); + int var = Integer.parseInt(attrs.getValue("var")); + getCodeVisitor().visitLocalVariable(name, + desc, + signature, + start, + end, + var); + } + + } + + /** + * OpcodesRule + */ + private final class OpcodesRule extends Rule { + + // public boolean match( String match, String element) { + // return match.startsWith( path) && OPCODES.containsKey( element); + // } + + public final void begin(String element, Attributes attrs) { + Opcode o = ((Opcode) OPCODES.get(element)); + if (o == null) + return; + + switch (o.type) { + case OpcodeGroup.INSN: + getCodeVisitor().visitInsn(o.opcode); + break; + + case OpcodeGroup.INSN_FIELD: + getCodeVisitor().visitFieldInsn(o.opcode, + attrs.getValue("owner"), + attrs.getValue("name"), + attrs.getValue("desc")); + break; + + case OpcodeGroup.INSN_INT: + getCodeVisitor().visitIntInsn(o.opcode, + Integer.parseInt(attrs.getValue("value"))); + break; + + case OpcodeGroup.INSN_JUMP: + getCodeVisitor().visitJumpInsn(o.opcode, + getLabel(attrs.getValue("label"))); + break; + + case OpcodeGroup.INSN_METHOD: + getCodeVisitor().visitMethodInsn(o.opcode, + attrs.getValue("owner"), + attrs.getValue("name"), + attrs.getValue("desc")); + break; + + case OpcodeGroup.INSN_TYPE: + getCodeVisitor().visitTypeInsn(o.opcode, + attrs.getValue("desc")); + break; + + case OpcodeGroup.INSN_VAR: + getCodeVisitor().visitVarInsn(o.opcode, + Integer.parseInt(attrs.getValue("var"))); + break; + + case OpcodeGroup.INSN_IINC: + getCodeVisitor().visitIincInsn(Integer.parseInt(attrs.getValue("var")), + Integer.parseInt(attrs.getValue("inc"))); + break; + + case OpcodeGroup.INSN_LDC: + getCodeVisitor().visitLdcInsn(getValue(attrs.getValue("desc"), + attrs.getValue("cst"))); + break; + + case OpcodeGroup.INSN_MULTIANEWARRAY: + getCodeVisitor().visitMultiANewArrayInsn(attrs.getValue("desc"), + Integer.parseInt(attrs.getValue("dims"))); + break; + + default: + throw new RuntimeException("Invalid element: " + element + + " at " + match); + + } + } + } + + /** + * MaxRule + */ + private final class MaxRule extends Rule { + + public final void begin(String element, Attributes attrs) { + int maxStack = Integer.parseInt(attrs.getValue("maxStack")); + int maxLocals = Integer.parseInt(attrs.getValue("maxLocals")); + getCodeVisitor().visitMaxs(maxStack, maxLocals); + } + + } + + private final class AnnotationRule extends Rule { + + public void begin(String name, Attributes attrs) { + String desc = attrs.getValue("desc"); + boolean visible = Boolean.valueOf(attrs.getValue("visible")) + .booleanValue(); + + Object v = peek(); + if (v instanceof ClassVisitor) { + push(((ClassVisitor) v).visitAnnotation(desc, visible)); + } else if (v instanceof FieldVisitor) { + push(((FieldVisitor) v).visitAnnotation(desc, visible)); + } else if (v instanceof MethodVisitor) { + push(((MethodVisitor) v).visitAnnotation(desc, visible)); + } + } + + public void end(String name) { + ((AnnotationVisitor) pop()).visitEnd(); + } + + } + + private final class AnnotationParameterRule extends Rule { + + public void begin(String name, Attributes attrs) { + int parameter = Integer.parseInt(attrs.getValue("parameter")); + String desc = attrs.getValue("desc"); + boolean visible = Boolean.valueOf(attrs.getValue("visible")) + .booleanValue(); + + push(((MethodVisitor) peek()).visitParameterAnnotation(parameter, + desc, + visible)); + } + + public void end(String name) { + ((AnnotationVisitor) pop()).visitEnd(); + } + + } + + private final class AnnotationValueRule extends Rule { + + public void begin(String nm, Attributes attrs) { + String name = attrs.getValue("name"); + String desc = attrs.getValue("desc"); + String value = attrs.getValue("value"); + ((AnnotationVisitor) peek()).visit(name, getValue(desc, value)); + } + + } + + private final class AnnotationValueEnumRule extends Rule { + + public void begin(String nm, Attributes attrs) { + String name = attrs.getValue("name"); + String desc = attrs.getValue("desc"); + String value = attrs.getValue("value"); + ((AnnotationVisitor) peek()).visitEnum(name, desc, value); + } + + } + + private final class AnnotationValueAnnotationRule extends Rule { + + public void begin(String nm, Attributes attrs) { + String name = attrs.getValue("name"); + String desc = attrs.getValue("desc"); + push(((AnnotationVisitor) peek()).visitAnnotation(name, desc)); + } + + public void end(String name) { + ((AnnotationVisitor) pop()).visitEnd(); + } + + } + + private final class AnnotationValueArrayRule extends Rule { + + public void begin(String nm, Attributes attrs) { + String name = attrs.getValue("name"); + push(((AnnotationVisitor) peek()).visitArray(name)); + } + + public void end(String name) { + ((AnnotationVisitor) pop()).visitEnd(); + } + + } + + private final class AnnotationDefaultRule extends Rule { + + public void begin(String nm, Attributes attrs) { + push(((MethodVisitor) peek()).visitAnnotationDefault()); + } + + public void end(String name) { + ((AnnotationVisitor) pop()).visitEnd(); + } + + } + + /** + * Opcode + */ + private final static class Opcode { + public int opcode; + + public int type; + + public Opcode(int opcode, int type) { + this.opcode = opcode; + this.type = type; + } + + } + +} |