/***
* 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.mvel2.asm.tree;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.mvel2.asm.AnnotationVisitor;
import org.mvel2.asm.Attribute;
import org.mvel2.asm.ClassVisitor;
import org.mvel2.asm.Handle;
import org.mvel2.asm.Label;
import org.mvel2.asm.MethodVisitor;
import org.mvel2.asm.Opcodes;
import org.mvel2.asm.Type;
import org.mvel2.asm.TypePath;
/**
* A node that represents a method.
*
* @author Eric Bruneton
*/
public class MethodNode extends MethodVisitor {
/**
* The method's access flags (see {@link Opcodes}). This field also
* indicates if the method is synthetic and/or deprecated.
*/
public int access;
/**
* The method's name.
*/
public String name;
/**
* The method's descriptor (see {@link Type}).
*/
public String desc;
/**
* The method's signature. May be <tt>null</tt>.
*/
public String signature;
/**
* The internal names of the method's exception classes (see
* {@link Type#getInternalName() getInternalName}). This list is a list of
* {@link String} objects.
*/
public List<String> exceptions;
/**
* The method parameter info (access flags and name)
*/
public List<ParameterNode> parameters;
/**
* The runtime visible annotations of this method. This list is a list of
* {@link AnnotationNode} objects. May be <tt>null</tt>.
*
* @associates org.mvel2.asm.tree.AnnotationNode
* @label visible
*/
public List<AnnotationNode> visibleAnnotations;
/**
* The runtime invisible annotations of this method. This list is a list of
* {@link AnnotationNode} objects. May be <tt>null</tt>.
*
* @associates org.mvel2.asm.tree.AnnotationNode
* @label invisible
*/
public List<AnnotationNode> invisibleAnnotations;
/**
* The runtime visible type annotations of this method. This list is a list
* of {@link TypeAnnotationNode} objects. May be <tt>null</tt>.
*
* @associates org.mvel2.asm.tree.TypeAnnotationNode
* @label visible
*/
public List<TypeAnnotationNode> visibleTypeAnnotations;
/**
* The runtime invisible type annotations of this method. This list is a
* list of {@link TypeAnnotationNode} objects. May be <tt>null</tt>.
*
* @associates org.mvel2.asm.tree.TypeAnnotationNode
* @label invisible
*/
public List<TypeAnnotationNode> invisibleTypeAnnotations;
/**
* The non standard attributes of this method. This list is a list of
* {@link Attribute} objects. May be <tt>null</tt>.
*
* @associates org.mvel2.asm.Attribute
*/
public List<Attribute> attrs;
/**
* The default value of this annotation interface method. This field must be
* a {@link Byte}, {@link Boolean}, {@link Character}, {@link Short},
* {@link Integer}, {@link Long}, {@link Float}, {@link Double},
* {@link String} or {@link Type}, or an two elements String array (for
* enumeration values), a {@link AnnotationNode}, or a {@link List} of
* values of one of the preceding types. May be <tt>null</tt>.
*/
public Object annotationDefault;
/**
* The runtime visible parameter annotations of this method. These lists are
* lists of {@link AnnotationNode} objects. May be <tt>null</tt>.
*
* @associates org.mvel2.asm.tree.AnnotationNode
* @label invisible parameters
*/
public List<AnnotationNode>[] visibleParameterAnnotations;
/**
* The runtime invisible parameter annotations of this method. These lists
* are lists of {@link AnnotationNode} objects. May be <tt>null</tt>.
*
* @associates org.mvel2.asm.tree.AnnotationNode
* @label visible parameters
*/
public List<AnnotationNode>[] invisibleParameterAnnotations;
/**
* The instructions of this method. This list is a list of
* {@link AbstractInsnNode} objects.
*
* @associates org.mvel2.asm.tree.AbstractInsnNode
* @label instructions
*/
public InsnList instructions;
/**
* The try catch blocks of this method. This list is a list of
* {@link TryCatchBlockNode} objects.
*
* @associates org.mvel2.asm.tree.TryCatchBlockNode
*/
public List<TryCatchBlockNode> tryCatchBlocks;
/**
* The maximum stack size of this method.
*/
public int maxStack;
/**
* The maximum number of local variables of this method.
*/
public int maxLocals;
/**
* The local variables of this method. This list is a list of
* {@link LocalVariableNode} objects. May be <tt>null</tt>
*
* @associates org.mvel2.asm.tree.LocalVariableNode
*/
public List<LocalVariableNode> localVariables;
/**
* The visible local variable annotations of this method. This list is a
* list of {@link LocalVariableAnnotationNode} objects. May be <tt>null</tt>
*
* @associates org.mvel2.asm.tree.LocalVariableAnnotationNode
*/
public List<LocalVariableAnnotationNode> visibleLocalVariableAnnotations;
/**
* The invisible local variable annotations of this method. This list is a
* list of {@link LocalVariableAnnotationNode} objects. May be <tt>null</tt>
*
* @associates org.mvel2.asm.tree.LocalVariableAnnotationNode
*/
public List<LocalVariableAnnotationNode> invisibleLocalVariableAnnotations;
/**
* If the accept method has been called on this object.
*/
private boolean visited;
/**
* Constructs an uninitialized {@link MethodNode}. <i>Subclasses must not
* use this constructor</i>. Instead, they must use the
* {@link #MethodNode(int)} version.
*
* @throws IllegalStateException
* If a subclass calls this constructor.
*/
public MethodNode() {
this(Opcodes.ASM5);
if (getClass() != MethodNode.class) {
throw new IllegalStateException();
}
}
/**
* Constructs an uninitialized {@link MethodNode}.
*
* @param api
* the ASM API version implemented by this visitor. Must be one
* of {@link Opcodes#ASM4} or {@link Opcodes#ASM5}.
*/
public MethodNode(final int api) {
super(api);
this.instructions = new InsnList();
}
/**
* Constructs a new {@link MethodNode}. <i>Subclasses must not use this
* constructor</i>. Instead, they must use the
* {@link #MethodNode(int, int, String, String, String, String[])} version.
*
* @param access
* the method's access flags (see {@link Opcodes}). This
* parameter also indicates if the method is synthetic and/or
* deprecated.
* @param name
* the method's name.
* @param desc
* the method's descriptor (see {@link Type}).
* @param signature
* the method's signature. May be <tt>null</tt>.
* @param exceptions
* the internal names of the method's exception classes (see
* {@link Type#getInternalName() getInternalName}). May be
* <tt>null</tt>.
* @throws IllegalStateException
* If a subclass calls this constructor.
*/
public MethodNode(final int access, final String name, final String desc,
final String signature, final String[] exceptions) {
this(Opcodes.ASM5, access, name, desc, signature, exceptions);
if (getClass() != MethodNode.class) {
throw new IllegalStateException();
}
}
/**
* Constructs a new {@link MethodNode}.
*
* @param api
* the ASM API version implemented by this visitor. Must be one
* of {@link Opcodes#ASM4} or {@link Opcodes#ASM5}.
* @param access
* the method's access flags (see {@link Opcodes}). This
* parameter also indicates if the method is synthetic and/or
* deprecated.
* @param name
* the method's name.
* @param desc
* the method's descriptor (see {@link Type}).
* @param signature
* the method's signature. May be <tt>null</tt>.
* @param exceptions
* the internal names of the method's exception classes (see
* {@link Type#getInternalName() getInternalName}). May be
* <tt>null</tt>.
*/
public MethodNode(final int api, final int access, final String name,
final String desc, final String signature, final String[] exceptions) {
super(api);
this.access = access;
this.name = name;
this.desc = desc;
this.signature = signature;
this.exceptions = new ArrayList<String>(exceptions == null ? 0
: exceptions.length);
boolean isAbstract = (access & Opcodes.ACC_ABSTRACT) != 0;
if (!isAbstract) {
this.localVariables = new ArrayList<LocalVariableNode>(5);
}
this.tryCatchBlocks = new ArrayList<TryCatchBlockNode>();
if (exceptions != null) {
this.exceptions.addAll(Arrays.asList(exceptions));
}
this.instructions = new InsnList();
}
// ------------------------------------------------------------------------
// Implementation of the MethodVisitor abstract class
// ------------------------------------------------------------------------
@Override
public void visitParameter(String name, int access) {
if (parameters == null) {
parameters = new ArrayList<ParameterNode>(5);
}
parameters.add(new ParameterNode(name, access));
}
@Override
public AnnotationVisitor visitAnnotationDefault() {
return new AnnotationNode(new ArrayList<Object>(0) {
@Override
public boolean add(final Object o) {
annotationDefault = o;
return super.add(o);
}
});
}
@Override
public AnnotationVisitor visitAnnotation(final String desc,
final boolean visible) {
AnnotationNode an = new AnnotationNode(desc);
if (visible) {
if (visibleAnnotations == null) {
visibleAnnotations = new ArrayList<AnnotationNode>(1);
}
visibleAnnotations.add(an);
} else {
if (invisibleAnnotations == null) {
invisibleAnnotations = new ArrayList<AnnotationNode>(1);
}
invisibleAnnotations.add(an);
}
return an;
}
@Override
public AnnotationVisitor visitTypeAnnotation(int typeRef,
TypePath typePath, String desc, boolean visible) {
TypeAnnotationNode an = new TypeAnnotationNode(typeRef, typePath, desc);
if (visible) {
if (visibleTypeAnnotations == null) {
visibleTypeAnnotations = new ArrayList<TypeAnnotationNode>(1);
}
visibleTypeAnnotations.add(an);
} else {
if (invisibleTypeAnnotations == null) {
invisibleTypeAnnotations = new ArrayList<TypeAnnotationNode>(1);
}
invisibleTypeAnnotations.add(an);
}
return an;
}
@Override
public AnnotationVisitor visitParameterAnnotation(final int parameter,
final String desc, final boolean visible) {
AnnotationNode an = new AnnotationNode(desc);
if (visible) {
if (visibleParameterAnnotations == null) {
int params = Type.getArgumentTypes(this.desc).length;
visibleParameterAnnotations = (List<AnnotationNode>[]) new List<?>[params];
}
if (visibleParameterAnnotations[parameter] == null) {
visibleParameterAnnotations[parameter] = new ArrayList<AnnotationNode>(
1);
}
visibleParameterAnnotations[parameter].add(an);
} else {
if (invisibleParameterAnnotations == null) {
int params = Type.getArgumentTypes(this.desc).length;
invisibleParameterAnnotations = (List<AnnotationNode>[]) new List<?>[params];
}
if (invisibleParameterAnnotations[parameter] == null) {
invisibleParameterAnnotations[parameter] = new ArrayList<AnnotationNode>(
1);
}
invisibleParameterAnnotations[parameter].add(an);
}
return an;
}
@Override
public void visitAttribute(final Attribute attr) {
if (attrs == null) {
attrs = new ArrayList<Attribute>(1);
}
attrs.add(attr);
}
@Override
public void visitCode() {
}
@Override
public void visitFrame(final int type, final int nLocal,
final Object[] local, final int nStack, final Object[] stack) {
instructions.add(new FrameNode(type, nLocal, local == null ? null
: getLabelNodes(local), nStack, stack == null ? null
: getLabelNodes(stack)));
}
@Override
public void visitInsn(final int opcode) {
instructions.add(new InsnNode(opcode));
}
@Override
public void visitIntInsn(final int opcode, final int operand) {
instructions.add(new IntInsnNode(opcode, operand));
}
@Override
public void visitVarInsn(final int opcode, final int var) {
instructions.add(new VarInsnNode(opcode, var));
}
@Override
public void visitTypeInsn(final int opcode, final String type) {
instructions.add(new TypeInsnNode(opcode, type));
}
@Override
public void visitFieldInsn(final int opcode, final String owner,
final String name, final String desc) {
instructions.add(new FieldInsnNode(opcode, owner, name, desc));
}
@Deprecated
@Override
public void visitMethodInsn(int opcode, String owner, String name,
String desc) {
if (api >= Opcodes.ASM5) {
super.visitMethodInsn(opcode, owner, name, desc);
return;
}
instructions.add(new MethodInsnNode(opcode, owner, name, desc));
}
@Override
public void visitMethodInsn(int opcode, String owner, String name,
String desc, boolean itf) {
if (api < Opcodes.ASM5) {
super.visitMethodInsn(opcode, owner, name, desc, itf);
return;
}
instructions.add(new MethodInsnNode(opcode, owner, name, desc, itf));
}
@Override
public void visitInvokeDynamicInsn(String name, String desc, Handle bsm,
Object... bsmArgs) {
instructions.add(new InvokeDynamicInsnNode(name, desc, bsm, bsmArgs));
}
@Override
public void visitJumpInsn(final int opcode, final Label label) {
instructions.add(new JumpInsnNode(opcode, getLabelNode(label)));
}
@Override
public void visitLabel(final Label label) {
instructions.add(getLabelNode(label));
}
@Override
public void visitLdcInsn(final Object cst) {
instructions.add(new LdcInsnNode(cst));
}
@Override
public void visitIincInsn(final int var, final int increment) {
instructions.add(new IincInsnNode(var, increment));
}
@Override
public void visitTableSwitchInsn(final int min, final int max,
final Label dflt, final Label... labels) {
instructions.add(new TableSwitchInsnNode(min, max, getLabelNode(dflt),
getLabelNodes(labels)));
}
@Override
public void visitLookupSwitchInsn(final Label dflt, final int[] keys,
final Label[] labels) {
instructions.add(new LookupSwitchInsnNode(getLabelNode(dflt), keys,
getLabelNodes(labels)));
}
@Override
public void visitMultiANewArrayInsn(final String desc, final int dims) {
instructions.add(new MultiANewArrayInsnNode(desc, dims));
}
@Override
public AnnotationVisitor visitInsnAnnotation(int typeRef,
TypePath typePath, String desc, boolean visible) {
// Finds the last real instruction, i.e. the instruction targeted by
// this annotation.
AbstractInsnNode insn = instructions.getLast();
while (insn.getOpcode() == -1) {
insn = insn.getPrevious();
}
// Adds the annotation to this instruction.
TypeAnnotationNode an = new TypeAnnotationNode(typeRef, typePath, desc);
if (visible) {
if (insn.visibleTypeAnnotations == null) {
insn.visibleTypeAnnotations = new ArrayList<TypeAnnotationNode>(
1);
}
insn.visibleTypeAnnotations.add(an);
} else {
if (insn.invisibleTypeAnnotations == null) {
insn.invisibleTypeAnnotations = new ArrayList<TypeAnnotationNode>(
1);
}
insn.invisibleTypeAnnotations.add(an);
}
return an;
}
@Override
public void visitTryCatchBlock(final Label start, final Label end,
final Label handler, final String type) {
tryCatchBlocks.add(new TryCatchBlockNode(getLabelNode(start),
getLabelNode(end), getLabelNode(handler), type));
}
@Override
public AnnotationVisitor visitTryCatchAnnotation(int typeRef,
TypePath typePath, String desc, boolean visible) {
TryCatchBlockNode tcb = tryCatchBlocks.get((typeRef & 0x00FFFF00) >> 8);
TypeAnnotationNode an = new TypeAnnotationNode(typeRef, typePath, desc);
if (visible) {
if (tcb.visibleTypeAnnotations == null) {
tcb.visibleTypeAnnotations = new ArrayList<TypeAnnotationNode>(
1);
}
tcb.visibleTypeAnnotations.add(an);
} else {
if (tcb.invisibleTypeAnnotations == null) {
tcb.invisibleTypeAnnotations = new ArrayList<TypeAnnotationNode>(
1);
}
tcb.invisibleTypeAnnotations.add(an);
}
return an;
}
@Override
public void visitLocalVariable(final String name, final String desc,
final String signature, final Label start, final Label end,
final int index) {
localVariables.add(new LocalVariableNode(name, desc, signature,
getLabelNode(start), getLabelNode(end), index));
}
@Override
public AnnotationVisitor visitLocalVariableAnnotation(int typeRef,
TypePath typePath, Label[] start, Label[] end, int[] index,
String desc, boolean visible) {
LocalVariableAnnotationNode an = new LocalVariableAnnotationNode(
typeRef, typePath, getLabelNodes(start), getLabelNodes(end),
index, desc);
if (visible) {
if (visibleLocalVariableAnnotations == null) {
visibleLocalVariableAnnotations = new ArrayList<LocalVariableAnnotationNode>(
1);
}
visibleLocalVariableAnnotations.add(an);
} else {
if (invisibleLocalVariableAnnotations == null) {
invisibleLocalVariableAnnotations = new ArrayList<LocalVariableAnnotationNode>(
1);
}
invisibleLocalVariableAnnotations.add(an);
}
return an;
}
@Override
public void visitLineNumber(final int line, final Label start) {
instructions.add(new LineNumberNode(line, getLabelNode(start)));
}
@Override
public void visitMaxs(final int maxStack, final int maxLocals) {
this.maxStack = maxStack;
this.maxLocals = maxLocals;
}
@Override
public void visitEnd() {
}
/**
* Returns the LabelNode corresponding to the given Label. Creates a new
* LabelNode if necessary. The default implementation of this method uses
* the {@link Label#info} field to store associations between labels and
* label nodes.
*
* @param l
* a Label.
* @return the LabelNode corresponding to l.
*/
protected LabelNode getLabelNode(final Label l) {
if (!(l.info instanceof LabelNode)) {
l.info = new LabelNode();
}
return (LabelNode) l.info;
}
private LabelNode[] getLabelNodes(final Label[] l) {
LabelNode[] nodes = new LabelNode[l.length];
for (int i = 0; i < l.length; ++i) {
nodes[i] = getLabelNode(l[i]);
}
return nodes;
}
private Object[] getLabelNodes(final Object[] objs) {
Object[] nodes = new Object[objs.length];
for (int i = 0; i < objs.length; ++i) {
Object o = objs[i];
if (o instanceof Label) {
o = getLabelNode((Label) o);
}
nodes[i] = o;
}
return nodes;
}
// ------------------------------------------------------------------------
// Accept method
// ------------------------------------------------------------------------
/**
* Checks that this method node is compatible with the given ASM API
* version. This methods checks that this node, and all its nodes
* recursively, do not contain elements that were introduced in more recent
* versions of the ASM API than the given version.
*
* @param api
* an ASM API version. Must be one of {@link Opcodes#ASM4} or
* {@link Opcodes#ASM5}.
*/
public void check(final int api) {
if (api == Opcodes.ASM4) {
if (visibleTypeAnnotations != null
&& visibleTypeAnnotations.size() > 0) {
throw new RuntimeException();
}
if (invisibleTypeAnnotations != null
&& invisibleTypeAnnotations.size() > 0) {
throw new RuntimeException();
}
int n = tryCatchBlocks == null ? 0 : tryCatchBlocks.size();
for (int i = 0; i < n; ++i) {
TryCatchBlockNode tcb = tryCatchBlocks.get(i);
if (tcb.visibleTypeAnnotations != null
&& tcb.visibleTypeAnnotations.size() > 0) {
throw new RuntimeException();
}
if (tcb.invisibleTypeAnnotations != null
&& tcb.invisibleTypeAnnotations.size() > 0) {
throw new RuntimeException();
}
}
for (int i = 0; i < instructions.size(); ++i) {
AbstractInsnNode insn = instructions.get(i);
if (insn.visibleTypeAnnotations != null
&& insn.visibleTypeAnnotations.size() > 0) {
throw new RuntimeException();
}
if (insn.invisibleTypeAnnotations != null
&& insn.invisibleTypeAnnotations.size() > 0) {
throw new RuntimeException();
}
if (insn instanceof MethodInsnNode) {
boolean itf = ((MethodInsnNode) insn).itf;
if (itf != (insn.opcode == Opcodes.INVOKEINTERFACE)) {
throw new RuntimeException();
}
}
}
if (visibleLocalVariableAnnotations != null
&& visibleLocalVariableAnnotations.size() > 0) {
throw new RuntimeException();
}
if (invisibleLocalVariableAnnotations != null
&& invisibleLocalVariableAnnotations.size() > 0) {
throw new RuntimeException();
}
}
}
/**
* Makes the given class visitor visit this method.
*
* @param cv
* a class visitor.
*/
public void accept(final ClassVisitor cv) {
String[] exceptions = new String[this.exceptions.size()];
this.exceptions.toArray(exceptions);
MethodVisitor mv = cv.visitMethod(access, name, desc, signature,
exceptions);
if (mv != null) {
accept(mv);
}
}
/**
* Makes the given method visitor visit this method.
*
* @param mv
* a method visitor.
*/
public void accept(final MethodVisitor mv) {
// visits the method parameters
int i, j, n;
n = parameters == null ? 0 : parameters.size();
for (i = 0; i < n; i++) {
ParameterNode parameter = parameters.get(i);
mv.visitParameter(parameter.name, parameter.access);
}
// visits the method attributes
if (annotationDefault != null) {
AnnotationVisitor av = mv.visitAnnotationDefault();
AnnotationNode.accept(av, null, annotationDefault);
if (av != null) {
av.visitEnd();
}
}
n = visibleAnnotations == null ? 0 : visibleAnnotations.size();
for (i = 0; i < n; ++i) {
AnnotationNode an = visibleAnnotations.get(i);
an.accept(mv.visitAnnotation(an.desc, true));
}
n = invisibleAnnotations == null ? 0 : invisibleAnnotations.size();
for (i = 0; i < n; ++i) {
AnnotationNode an = invisibleAnnotations.get(i);
an.accept(mv.visitAnnotation(an.desc, false));
}
n = visibleTypeAnnotations == null ? 0 : visibleTypeAnnotations.size();
for (i = 0; i < n; ++i) {
TypeAnnotationNode an = visibleTypeAnnotations.get(i);
an.accept(mv.visitTypeAnnotation(an.typeRef, an.typePath, an.desc,
true));
}
n = invisibleTypeAnnotations == null ? 0 : invisibleTypeAnnotations
.size();
for (i = 0; i < n; ++i) {
TypeAnnotationNode an = invisibleTypeAnnotations.get(i);
an.accept(mv.visitTypeAnnotation(an.typeRef, an.typePath, an.desc,
false));
}
n = visibleParameterAnnotations == null ? 0
: visibleParameterAnnotations.length;
for (i = 0; i < n; ++i) {
List<?> l = visibleParameterAnnotations[i];
if (l == null) {
continue;
}
for (j = 0; j < l.size(); ++j) {
AnnotationNode an = (AnnotationNode) l.get(j);
an.accept(mv.visitParameterAnnotation(i, an.desc, true));
}
}
n = invisibleParameterAnnotations == null ? 0
: invisibleParameterAnnotations.length;
for (i = 0; i < n; ++i) {
List<?> l = invisibleParameterAnnotations[i];
if (l == null) {
continue;
}
for (j = 0; j < l.size(); ++j) {
AnnotationNode an = (AnnotationNode) l.get(j);
an.accept(mv.visitParameterAnnotation(i, an.desc, false));
}
}
if (visited) {
instructions.resetLabels();
}
n = attrs == null ? 0 : attrs.size();
for (i = 0; i < n; ++i) {
mv.visitAttribute(attrs.get(i));
}
// visits the method's code
if (instructions.size() > 0) {
mv.visitCode();
// visits try catch blocks
n = tryCatchBlocks == null ? 0 : tryCatchBlocks.size();
for (i = 0; i < n; ++i) {
tryCatchBlocks.get(i).updateIndex(i);
tryCatchBlocks.get(i).accept(mv);
}
// visits instructions
instructions.accept(mv);
// visits local variables
n = localVariables == null ? 0 : localVariables.size();
for (i = 0; i < n; ++i) {
localVariables.get(i).accept(mv);
}
// visits local variable annotations
n = visibleLocalVariableAnnotations == null ? 0
: visibleLocalVariableAnnotations.size();
for (i = 0; i < n; ++i) {
visibleLocalVariableAnnotations.get(i).accept(mv, true);
}
n = invisibleLocalVariableAnnotations == null ? 0
: invisibleLocalVariableAnnotations.size();
for (i = 0; i < n; ++i) {
invisibleLocalVariableAnnotations.get(i).accept(mv, false);
}
// visits maxs
mv.visitMaxs(maxStack, maxLocals);
visited = true;
}
mv.visitEnd();
}
}