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org.objectweb.asm.xml.SAXCodeAdapter Maven / Gradle / Ivy
package org.objectweb.asm.xml;
import java.util.HashMap;
import java.util.Map;
import org.objectweb.asm.AnnotationVisitor;
import org.objectweb.asm.Handle;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.Type;
import org.objectweb.asm.TypePath;
import org.objectweb.asm.util.Printer;
import org.xml.sax.helpers.AttributesImpl;
public final class SAXCodeAdapter extends MethodVisitor {
static final String[] TYPES = { "top" , "int" , "float" , "double" , "long" ,
"null" , "uninitializedThis" };
SAXAdapter sa;
int access;
private final Map labelNames;
public SAXCodeAdapter (final SAXAdapter sa, final int access) {
super (Opcodes.ASM5);
this .sa = sa;
this .access = access;
this .labelNames = new HashMap();
}
@Override
public void visitParameter (String name, int access) {
AttributesImpl attrs = new AttributesImpl();
if (name != null ) {
attrs.addAttribute("" , "name" , "name" , "" , name);
}
StringBuffer sb = new StringBuffer();
SAXClassAdapter.appendAccess(access, sb);
attrs.addAttribute("" , "access" , "access" , "" , sb.toString());
sa.addElement("parameter" , attrs);
}
@Override
public final void visitCode () {
if ((access & (Opcodes.ACC_ABSTRACT | Opcodes.ACC_INTERFACE | Opcodes.ACC_NATIVE)) == 0 ) {
sa.addStart("code" , new AttributesImpl());
}
}
@Override
public void visitFrame (final int type, final int nLocal,
final Object[] local, final int nStack, final Object[] stack) {
AttributesImpl attrs = new AttributesImpl();
switch (type) {
case Opcodes.F_NEW:
case Opcodes.F_FULL:
if (type == Opcodes.F_NEW) {
attrs.addAttribute("" , "type" , "type" , "" , "NEW" );
} else {
attrs.addAttribute("" , "type" , "type" , "" , "FULL" );
}
sa.addStart("frame" , attrs);
appendFrameTypes(true , nLocal, local);
appendFrameTypes(false , nStack, stack);
break ;
case Opcodes.F_APPEND:
attrs.addAttribute("" , "type" , "type" , "" , "APPEND" );
sa.addStart("frame" , attrs);
appendFrameTypes(true , nLocal, local);
break ;
case Opcodes.F_CHOP:
attrs.addAttribute("" , "type" , "type" , "" , "CHOP" );
attrs.addAttribute("" , "count" , "count" , "" ,
Integer.toString(nLocal));
sa.addStart("frame" , attrs);
break ;
case Opcodes.F_SAME:
attrs.addAttribute("" , "type" , "type" , "" , "SAME" );
sa.addStart("frame" , attrs);
break ;
case Opcodes.F_SAME1:
attrs.addAttribute("" , "type" , "type" , "" , "SAME1" );
sa.addStart("frame" , attrs);
appendFrameTypes(false , 1 , stack);
break ;
}
sa.addEnd("frame" );
}
private void appendFrameTypes (final boolean local, final int n,
final Object[] types) {
for (int i = 0 ; i < n; ++i) {
Object type = types[i];
AttributesImpl attrs = new AttributesImpl();
if (type instanceof String) {
attrs.addAttribute("" , "type" , "type" , "" , (String) type);
} else if (type instanceof Integer) {
attrs.addAttribute("" , "type" , "type" , "" ,
TYPES[((Integer) type).intValue()]);
} else {
attrs.addAttribute("" , "type" , "type" , "" , "uninitialized" );
attrs.addAttribute("" , "label" , "label" , "" ,
getLabel((Label) type));
}
sa.addElement(local ? "local" : "stack" , attrs);
}
}
@Override
public final void visitInsn (final int opcode) {
sa.addElement(Printer.OPCODES[opcode], new AttributesImpl());
}
@Override
public final void visitIntInsn (final int opcode, final int operand) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("" , "value" , "value" , "" , Integer.toString(operand));
sa.addElement(Printer.OPCODES[opcode], attrs);
}
@Override
public final void visitVarInsn (final int opcode, final int var) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("" , "var" , "var" , "" , Integer.toString(var));
sa.addElement(Printer.OPCODES[opcode], attrs);
}
@Override
public final void visitTypeInsn (final int opcode, final String type) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("" , "desc" , "desc" , "" , type);
sa.addElement(Printer.OPCODES[opcode], attrs);
}
@Override
public final void visitFieldInsn (final int opcode, final String owner,
final String name, final String desc) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("" , "owner" , "owner" , "" , owner);
attrs.addAttribute("" , "name" , "name" , "" , name);
attrs.addAttribute("" , "desc" , "desc" , "" , desc);
sa.addElement(Printer.OPCODES[opcode], attrs);
}
@Override
public final void visitMethodInsn (final int opcode, final String owner,
final String name, final String desc, final boolean itf) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("" , "owner" , "owner" , "" , owner);
attrs.addAttribute("" , "name" , "name" , "" , name);
attrs.addAttribute("" , "desc" , "desc" , "" , desc);
attrs.addAttribute("" , "itf" , "itf" , "" , itf ? "true" : "false" );
sa.addElement(Printer.OPCODES[opcode], attrs);
}
@Override
public void visitInvokeDynamicInsn (String name, String desc, Handle bsm,
Object... bsmArgs) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("" , "name" , "name" , "" , name);
attrs.addAttribute("" , "desc" , "desc" , "" , desc);
attrs.addAttribute("" , "bsm" , "bsm" , "" ,
SAXClassAdapter.encode(bsm.toString()));
sa.addStart("INVOKEDYNAMIC" , attrs);
for (int i = 0 ; i < bsmArgs.length; i++) {
sa.addElement("bsmArg" , getConstantAttribute(bsmArgs[i]));
}
sa.addEnd("INVOKEDYNAMIC" );
}
@Override
public final void visitJumpInsn (final int opcode, final Label label) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("" , "label" , "label" , "" , getLabel(label));
sa.addElement(Printer.OPCODES[opcode], attrs);
}
@Override
public final void visitLabel (final Label label) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("" , "name" , "name" , "" , getLabel(label));
sa.addElement("Label" , attrs);
}
@Override
public final void visitLdcInsn (final Object cst) {
sa.addElement(Printer.OPCODES[Opcodes.LDC], getConstantAttribute(cst));
}
private static AttributesImpl getConstantAttribute (final Object cst) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("" , "cst" , "cst" , "" ,
SAXClassAdapter.encode(cst.toString()));
attrs.addAttribute("" , "desc" , "desc" , "" ,
Type.getDescriptor(cst.getClass()));
return attrs;
}
@Override
public final void visitIincInsn (final int var, final int increment) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("" , "var" , "var" , "" , Integer.toString(var));
attrs.addAttribute("" , "inc" , "inc" , "" , Integer.toString(increment));
sa.addElement(Printer.OPCODES[Opcodes.IINC], attrs);
}
@Override
public final void visitTableSwitchInsn (final int min, final int max,
final Label dflt, final Label... labels) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("" , "min" , "min" , "" , Integer.toString(min));
attrs.addAttribute("" , "max" , "max" , "" , Integer.toString(max));
attrs.addAttribute("" , "dflt" , "dflt" , "" , getLabel(dflt));
String o = Printer.OPCODES[Opcodes.TABLESWITCH];
sa.addStart(o, attrs);
for (int i = 0 ; i < labels.length; i++) {
AttributesImpl att2 = new AttributesImpl();
att2.addAttribute("" , "name" , "name" , "" , getLabel(labels[i]));
sa.addElement("label" , att2);
}
sa.addEnd(o);
}
@Override
public final void visitLookupSwitchInsn (final Label dflt, final int [] keys,
final Label[] labels) {
AttributesImpl att = new AttributesImpl();
att.addAttribute("" , "dflt" , "dflt" , "" , getLabel(dflt));
String o = Printer.OPCODES[Opcodes.LOOKUPSWITCH];
sa.addStart(o, att);
for (int i = 0 ; i < labels.length; i++) {
AttributesImpl att2 = new AttributesImpl();
att2.addAttribute("" , "name" , "name" , "" , getLabel(labels[i]));
att2.addAttribute("" , "key" , "key" , "" , Integer.toString(keys[i]));
sa.addElement("label" , att2);
}
sa.addEnd(o);
}
@Override
public final void visitMultiANewArrayInsn (final String desc, final int dims) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("" , "desc" , "desc" , "" , desc);
attrs.addAttribute("" , "dims" , "dims" , "" , Integer.toString(dims));
sa.addElement(Printer.OPCODES[Opcodes.MULTIANEWARRAY], attrs);
}
@Override
public final void visitTryCatchBlock (final Label start, final Label end,
final Label handler, final String type) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("" , "start" , "start" , "" , getLabel(start));
attrs.addAttribute("" , "end" , "end" , "" , getLabel(end));
attrs.addAttribute("" , "handler" , "handler" , "" , getLabel(handler));
if (type != null ) {
attrs.addAttribute("" , "type" , "type" , "" , type);
}
sa.addElement("TryCatch" , attrs);
}
@Override
public final void visitMaxs (final int maxStack, final int maxLocals) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("" , "maxStack" , "maxStack" , "" ,
Integer.toString(maxStack));
attrs.addAttribute("" , "maxLocals" , "maxLocals" , "" ,
Integer.toString(maxLocals));
sa.addElement("Max" , attrs);
sa.addEnd("code" );
}
@Override
public void visitLocalVariable (final String name, final String desc,
final String signature, final Label start, final Label end,
final int index) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("" , "name" , "name" , "" , name);
attrs.addAttribute("" , "desc" , "desc" , "" , desc);
if (signature != null ) {
attrs.addAttribute("" , "signature" , "signature" , "" ,
SAXClassAdapter.encode(signature));
}
attrs.addAttribute("" , "start" , "start" , "" , getLabel(start));
attrs.addAttribute("" , "end" , "end" , "" , getLabel(end));
attrs.addAttribute("" , "var" , "var" , "" , Integer.toString(index));
sa.addElement("LocalVar" , attrs);
}
@Override
public final void visitLineNumber (final int line, final Label start) {
AttributesImpl attrs = new AttributesImpl();
attrs.addAttribute("" , "line" , "line" , "" , Integer.toString(line));
attrs.addAttribute("" , "start" , "start" , "" , getLabel(start));
sa.addElement("LineNumber" , attrs);
}
@Override
public AnnotationVisitor visitAnnotationDefault () {
return new SAXAnnotationAdapter(sa, "annotationDefault" , 0 , null , null );
}
@Override
public AnnotationVisitor visitAnnotation (final String desc,
final boolean visible) {
return new SAXAnnotationAdapter(sa, "annotation" , visible ? 1 : -1 ,
null , desc);
}
@Override
public AnnotationVisitor visitTypeAnnotation (int typeRef,
TypePath typePath, String desc, boolean visible) {
return new SAXAnnotationAdapter(sa, "typeAnnotation" , visible ? 1 : -1 ,
null , desc, typeRef, typePath);
}
@Override
public AnnotationVisitor visitParameterAnnotation (final int parameter,
final String desc, final boolean visible) {
return new SAXAnnotationAdapter(sa, "parameterAnnotation" , visible ? 1
: -1 , parameter, desc);
}
@Override
public AnnotationVisitor visitInsnAnnotation (int typeRef,
TypePath typePath, String desc, boolean visible) {
return new SAXAnnotationAdapter(sa, "insnAnnotation" , visible ? 1 : -1 ,
null , desc, typeRef, typePath);
}
@Override
public AnnotationVisitor visitTryCatchAnnotation (int typeRef,
TypePath typePath, String desc, boolean visible) {
return new SAXAnnotationAdapter(sa, "tryCatchAnnotation" , visible ? 1
: -1 , null , desc, typeRef, typePath);
}
@Override
public AnnotationVisitor visitLocalVariableAnnotation (int typeRef,
TypePath typePath, Label[] start, Label[] end, int [] index,
String desc, boolean visible) {
String[] s = new String[start.length];
String[] e = new String[end.length];
for (int i = 0 ; i < s.length; ++i) {
s[i] = getLabel(start[i]);
}
for (int i = 0 ; i < e.length; ++i) {
e[i] = getLabel(end[i]);
}
return new SAXAnnotationAdapter(sa, "localVariableAnnotation" ,
visible ? 1 : -1 , null , desc, typeRef, typePath, s, e, index);
}
@Override
public void visitEnd () {
sa.addEnd("method" );
}
private final String getLabel (final Label label) {
String name = labelNames.get(label);
if (name == null ) {
name = Integer.toString(labelNames.size());
labelNames.put(label, name);
}
return name;
}
}