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org.objectweb.asm.commons.AnalyzerAdapter Maven / Gradle / Ivy
/***
* 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.objectweb.asm.commons;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
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;
/**
* A {@link MethodVisitor} that keeps track of stack map frame changes between
* {@link #visitFrame(int, int, Object[], int, Object[]) visitFrame} calls. This
* adapter must be used with the
* {@link org.objectweb.asm.ClassReader#EXPAND_FRAMES} option. Each
* visitX instruction delegates to the next visitor in the chain, if any,
* and then simulates the effect of this instruction on the stack map frame,
* represented by {@link #locals} and {@link #stack}. The next visitor in the
* chain can get the state of the stack map frame before each instruction
* by reading the value of these fields in its visitX methods (this
* requires a reference to the AnalyzerAdapter that is before it in the chain).
* If this adapter is used with a class that does not contain stack map table
* attributes (i.e., pre Java 6 classes) then this adapter may not be able to
* compute the stack map frame for each instruction. In this case no exception
* is thrown but the {@link #locals} and {@link #stack} fields will be null for
* these instructions.
*
* @author Eric Bruneton
*/
public class AnalyzerAdapter extends MethodVisitor {
/**
* List of the local variable slots for current execution
* frame. Primitive types are represented by {@link Opcodes#TOP},
* {@link Opcodes#INTEGER}, {@link Opcodes#FLOAT}, {@link Opcodes#LONG},
* {@link Opcodes#DOUBLE},{@link Opcodes#NULL} or
* {@link Opcodes#UNINITIALIZED_THIS} (long and double are represented by
* two elements, the second one being TOP). Reference types are represented
* by String objects (representing internal names), and uninitialized types
* by Label objects (this label designates the NEW instruction that created
* this uninitialized value). This field is null for unreachable
* instructions.
*/
public List locals;
/**
* List of the operand stack slots for current execution frame.
* Primitive types are represented by {@link Opcodes#TOP},
* {@link Opcodes#INTEGER}, {@link Opcodes#FLOAT}, {@link Opcodes#LONG},
* {@link Opcodes#DOUBLE},{@link Opcodes#NULL} or
* {@link Opcodes#UNINITIALIZED_THIS} (long and double are represented by
* two elements, the second one being TOP). Reference types are represented
* by String objects (representing internal names), and uninitialized types
* by Label objects (this label designates the NEW instruction that created
* this uninitialized value). This field is null for unreachable
* instructions.
*/
public List stack;
/**
* The labels that designate the next instruction to be visited. May be
* null .
*/
private List labels;
/**
* Information about uninitialized types in the current execution frame.
* This map associates internal names to Label objects. Each label
* designates a NEW instruction that created the currently uninitialized
* types, and the associated internal name represents the NEW operand, i.e.
* the final, initialized type value.
*/
public Map uninitializedTypes;
/**
* The maximum stack size of this method.
*/
private int maxStack;
/**
* The maximum number of local variables of this method.
*/
private int maxLocals;
/**
* The owner's class name.
*/
private String owner;
/**
* Creates a new {@link AnalyzerAdapter}. Subclasses must not use this
* constructor . Instead, they must use the
* {@link #AnalyzerAdapter(int, String, int, String, String, MethodVisitor)}
* version.
*
* @param owner
* the owner's class name.
* @param access
* the method's access flags (see {@link Opcodes}).
* @param name
* the method's name.
* @param desc
* the method's descriptor (see {@link Type Type}).
* @param mv
* the method visitor to which this adapter delegates calls. May
* be null .
*/
public AnalyzerAdapter(final String owner, final int access,
final String name, final String desc, final MethodVisitor mv) {
this(Opcodes.ASM5, owner, access, name, desc, mv);
}
/**
* Creates a new {@link AnalyzerAdapter}.
*
* @param api
* the ASM API version implemented by this visitor. Must be one
* of {@link Opcodes#ASM4} or {@link Opcodes#ASM5}.
* @param owner
* the owner's class name.
* @param access
* the method's access flags (see {@link Opcodes}).
* @param name
* the method's name.
* @param desc
* the method's descriptor (see {@link Type Type}).
* @param mv
* the method visitor to which this adapter delegates calls. May
* be null .
*/
protected AnalyzerAdapter(final int api, final String owner,
final int access, final String name, final String desc,
final MethodVisitor mv) {
super(api, mv);
this.owner = owner;
locals = new ArrayList();
stack = new ArrayList();
uninitializedTypes = new HashMap();
if ((access & Opcodes.ACC_STATIC) == 0) {
if ("".equals(name)) {
locals.add(Opcodes.UNINITIALIZED_THIS);
} else {
locals.add(owner);
}
}
Type[] types = Type.getArgumentTypes(desc);
for (int i = 0; i < types.length; ++i) {
Type type = types[i];
switch (type.getSort()) {
case Type.BOOLEAN:
case Type.CHAR:
case Type.BYTE:
case Type.SHORT:
case Type.INT:
locals.add(Opcodes.INTEGER);
break;
case Type.FLOAT:
locals.add(Opcodes.FLOAT);
break;
case Type.LONG:
locals.add(Opcodes.LONG);
locals.add(Opcodes.TOP);
break;
case Type.DOUBLE:
locals.add(Opcodes.DOUBLE);
locals.add(Opcodes.TOP);
break;
case Type.ARRAY:
locals.add(types[i].getDescriptor());
break;
// case Type.OBJECT:
default:
locals.add(types[i].getInternalName());
}
}
}
@Override
public void visitFrame(final int type, final int nLocal,
final Object[] local, final int nStack, final Object[] stack) {
if (type != Opcodes.F_NEW) { // uncompressed frame
throw new IllegalStateException(
"ClassReader.accept() should be called with EXPAND_FRAMES flag");
}
if (mv != null) {
mv.visitFrame(type, nLocal, local, nStack, stack);
}
if (this.locals != null) {
this.locals.clear();
this.stack.clear();
} else {
this.locals = new ArrayList();
this.stack = new ArrayList();
}
visitFrameTypes(nLocal, local, this.locals);
visitFrameTypes(nStack, stack, this.stack);
maxStack = Math.max(maxStack, this.stack.size());
}
private static void visitFrameTypes(final int n, final Object[] types,
final List result) {
for (int i = 0; i < n; ++i) {
Object type = types[i];
result.add(type);
if (type == Opcodes.LONG || type == Opcodes.DOUBLE) {
result.add(Opcodes.TOP);
}
}
}
@Override
public void visitInsn(final int opcode) {
if (mv != null) {
mv.visitInsn(opcode);
}
execute(opcode, 0, null);
if ((opcode >= Opcodes.IRETURN && opcode <= Opcodes.RETURN)
|| opcode == Opcodes.ATHROW) {
this.locals = null;
this.stack = null;
}
}
@Override
public void visitIntInsn(final int opcode, final int operand) {
if (mv != null) {
mv.visitIntInsn(opcode, operand);
}
execute(opcode, operand, null);
}
@Override
public void visitVarInsn(final int opcode, final int var) {
if (mv != null) {
mv.visitVarInsn(opcode, var);
}
execute(opcode, var, null);
}
@Override
public void visitTypeInsn(final int opcode, final String type) {
if (opcode == Opcodes.NEW) {
if (labels == null) {
Label l = new Label();
labels = new ArrayList(3);
labels.add(l);
if (mv != null) {
mv.visitLabel(l);
}
}
for (int i = 0; i < labels.size(); ++i) {
uninitializedTypes.put(labels.get(i), type);
}
}
if (mv != null) {
mv.visitTypeInsn(opcode, type);
}
execute(opcode, 0, type);
}
@Override
public void visitFieldInsn(final int opcode, final String owner,
final String name, final String desc) {
if (mv != null) {
mv.visitFieldInsn(opcode, owner, name, desc);
}
execute(opcode, 0, desc);
}
@Override
public void visitMethodInsn(final int opcode, final String owner,
final String name, final String desc) {
if (mv != null) {
mv.visitMethodInsn(opcode, owner, name, desc);
}
if (this.locals == null) {
labels = null;
return;
}
pop(desc);
if (opcode != Opcodes.INVOKESTATIC) {
Object t = pop();
if (opcode == Opcodes.INVOKESPECIAL && name.charAt(0) == '<') {
Object u;
if (t == Opcodes.UNINITIALIZED_THIS) {
u = this.owner;
} else {
u = uninitializedTypes.get(t);
}
for (int i = 0; i < locals.size(); ++i) {
if (locals.get(i) == t) {
locals.set(i, u);
}
}
for (int i = 0; i < stack.size(); ++i) {
if (stack.get(i) == t) {
stack.set(i, u);
}
}
}
}
pushDesc(desc);
labels = null;
}
@Override
public void visitInvokeDynamicInsn(String name, String desc, Handle bsm,
Object... bsmArgs) {
if (mv != null) {
mv.visitInvokeDynamicInsn(name, desc, bsm, bsmArgs);
}
if (this.locals == null) {
labels = null;
return;
}
pop(desc);
pushDesc(desc);
labels = null;
}
@Override
public void visitJumpInsn(final int opcode, final Label label) {
if (mv != null) {
mv.visitJumpInsn(opcode, label);
}
execute(opcode, 0, null);
if (opcode == Opcodes.GOTO) {
this.locals = null;
this.stack = null;
}
}
@Override
public void visitLabel(final Label label) {
if (mv != null) {
mv.visitLabel(label);
}
if (labels == null) {
labels = new ArrayList(3);
}
labels.add(label);
}
@Override
public void visitLdcInsn(final Object cst) {
if (mv != null) {
mv.visitLdcInsn(cst);
}
if (this.locals == null) {
labels = null;
return;
}
if (cst instanceof Integer) {
push(Opcodes.INTEGER);
} else if (cst instanceof Long) {
push(Opcodes.LONG);
push(Opcodes.TOP);
} else if (cst instanceof Float) {
push(Opcodes.FLOAT);
} else if (cst instanceof Double) {
push(Opcodes.DOUBLE);
push(Opcodes.TOP);
} else if (cst instanceof String) {
push("java/lang/String");
} else if (cst instanceof Type) {
int sort = ((Type) cst).getSort();
if (sort == Type.OBJECT || sort == Type.ARRAY) {
push("java/lang/Class");
} else if (sort == Type.METHOD) {
push("java/lang/invoke/MethodType");
} else {
throw new IllegalArgumentException();
}
} else if (cst instanceof Handle) {
push("java/lang/invoke/MethodHandle");
} else {
throw new IllegalArgumentException();
}
labels = null;
}
@Override
public void visitIincInsn(final int var, final int increment) {
if (mv != null) {
mv.visitIincInsn(var, increment);
}
execute(Opcodes.IINC, var, null);
}
@Override
public void visitTableSwitchInsn(final int min, final int max,
final Label dflt, final Label... labels) {
if (mv != null) {
mv.visitTableSwitchInsn(min, max, dflt, labels);
}
execute(Opcodes.TABLESWITCH, 0, null);
this.locals = null;
this.stack = null;
}
@Override
public void visitLookupSwitchInsn(final Label dflt, final int[] keys,
final Label[] labels) {
if (mv != null) {
mv.visitLookupSwitchInsn(dflt, keys, labels);
}
execute(Opcodes.LOOKUPSWITCH, 0, null);
this.locals = null;
this.stack = null;
}
@Override
public void visitMultiANewArrayInsn(final String desc, final int dims) {
if (mv != null) {
mv.visitMultiANewArrayInsn(desc, dims);
}
execute(Opcodes.MULTIANEWARRAY, dims, desc);
}
@Override
public void visitMaxs(final int maxStack, final int maxLocals) {
if (mv != null) {
this.maxStack = Math.max(this.maxStack, maxStack);
this.maxLocals = Math.max(this.maxLocals, maxLocals);
mv.visitMaxs(this.maxStack, this.maxLocals);
}
}
// ------------------------------------------------------------------------
private Object get(final int local) {
maxLocals = Math.max(maxLocals, local);
return local < locals.size() ? locals.get(local) : Opcodes.TOP;
}
private void set(final int local, final Object type) {
maxLocals = Math.max(maxLocals, local);
while (local >= locals.size()) {
locals.add(Opcodes.TOP);
}
locals.set(local, type);
}
private void push(final Object type) {
stack.add(type);
maxStack = Math.max(maxStack, stack.size());
}
private void pushDesc(final String desc) {
int index = desc.charAt(0) == '(' ? desc.indexOf(')') + 1 : 0;
switch (desc.charAt(index)) {
case 'V':
return;
case 'Z':
case 'C':
case 'B':
case 'S':
case 'I':
push(Opcodes.INTEGER);
return;
case 'F':
push(Opcodes.FLOAT);
return;
case 'J':
push(Opcodes.LONG);
push(Opcodes.TOP);
return;
case 'D':
push(Opcodes.DOUBLE);
push(Opcodes.TOP);
return;
case '[':
if (index == 0) {
push(desc);
} else {
push(desc.substring(index, desc.length()));
}
break;
// case 'L':
default:
if (index == 0) {
push(desc.substring(1, desc.length() - 1));
} else {
push(desc.substring(index + 1, desc.length() - 1));
}
}
}
private Object pop() {
return stack.remove(stack.size() - 1);
}
private void pop(final int n) {
int size = stack.size();
int end = size - n;
for (int i = size - 1; i >= end; --i) {
stack.remove(i);
}
}
private void pop(final String desc) {
char c = desc.charAt(0);
if (c == '(') {
int n = 0;
Type[] types = Type.getArgumentTypes(desc);
for (int i = 0; i < types.length; ++i) {
n += types[i].getSize();
}
pop(n);
} else if (c == 'J' || c == 'D') {
pop(2);
} else {
pop(1);
}
}
private void execute(final int opcode, final int iarg, final String sarg) {
if (this.locals == null) {
labels = null;
return;
}
Object t1, t2, t3, t4;
switch (opcode) {
case Opcodes.NOP:
case Opcodes.INEG:
case Opcodes.LNEG:
case Opcodes.FNEG:
case Opcodes.DNEG:
case Opcodes.I2B:
case Opcodes.I2C:
case Opcodes.I2S:
case Opcodes.GOTO:
case Opcodes.RETURN:
break;
case Opcodes.ACONST_NULL:
push(Opcodes.NULL);
break;
case Opcodes.ICONST_M1:
case Opcodes.ICONST_0:
case Opcodes.ICONST_1:
case Opcodes.ICONST_2:
case Opcodes.ICONST_3:
case Opcodes.ICONST_4:
case Opcodes.ICONST_5:
case Opcodes.BIPUSH:
case Opcodes.SIPUSH:
push(Opcodes.INTEGER);
break;
case Opcodes.LCONST_0:
case Opcodes.LCONST_1:
push(Opcodes.LONG);
push(Opcodes.TOP);
break;
case Opcodes.FCONST_0:
case Opcodes.FCONST_1:
case Opcodes.FCONST_2:
push(Opcodes.FLOAT);
break;
case Opcodes.DCONST_0:
case Opcodes.DCONST_1:
push(Opcodes.DOUBLE);
push(Opcodes.TOP);
break;
case Opcodes.ILOAD:
case Opcodes.FLOAD:
case Opcodes.ALOAD:
push(get(iarg));
break;
case Opcodes.LLOAD:
case Opcodes.DLOAD:
push(get(iarg));
push(Opcodes.TOP);
break;
case Opcodes.IALOAD:
case Opcodes.BALOAD:
case Opcodes.CALOAD:
case Opcodes.SALOAD:
pop(2);
push(Opcodes.INTEGER);
break;
case Opcodes.LALOAD:
case Opcodes.D2L:
pop(2);
push(Opcodes.LONG);
push(Opcodes.TOP);
break;
case Opcodes.FALOAD:
pop(2);
push(Opcodes.FLOAT);
break;
case Opcodes.DALOAD:
case Opcodes.L2D:
pop(2);
push(Opcodes.DOUBLE);
push(Opcodes.TOP);
break;
case Opcodes.AALOAD:
pop(1);
t1 = pop();
if (t1 instanceof String) {
pushDesc(((String) t1).substring(1));
} else {
push("java/lang/Object");
}
break;
case Opcodes.ISTORE:
case Opcodes.FSTORE:
case Opcodes.ASTORE:
t1 = pop();
set(iarg, t1);
if (iarg > 0) {
t2 = get(iarg - 1);
if (t2 == Opcodes.LONG || t2 == Opcodes.DOUBLE) {
set(iarg - 1, Opcodes.TOP);
}
}
break;
case Opcodes.LSTORE:
case Opcodes.DSTORE:
pop(1);
t1 = pop();
set(iarg, t1);
set(iarg + 1, Opcodes.TOP);
if (iarg > 0) {
t2 = get(iarg - 1);
if (t2 == Opcodes.LONG || t2 == Opcodes.DOUBLE) {
set(iarg - 1, Opcodes.TOP);
}
}
break;
case Opcodes.IASTORE:
case Opcodes.BASTORE:
case Opcodes.CASTORE:
case Opcodes.SASTORE:
case Opcodes.FASTORE:
case Opcodes.AASTORE:
pop(3);
break;
case Opcodes.LASTORE:
case Opcodes.DASTORE:
pop(4);
break;
case Opcodes.POP:
case Opcodes.IFEQ:
case Opcodes.IFNE:
case Opcodes.IFLT:
case Opcodes.IFGE:
case Opcodes.IFGT:
case Opcodes.IFLE:
case Opcodes.IRETURN:
case Opcodes.FRETURN:
case Opcodes.ARETURN:
case Opcodes.TABLESWITCH:
case Opcodes.LOOKUPSWITCH:
case Opcodes.ATHROW:
case Opcodes.MONITORENTER:
case Opcodes.MONITOREXIT:
case Opcodes.IFNULL:
case Opcodes.IFNONNULL:
pop(1);
break;
case Opcodes.POP2:
case Opcodes.IF_ICMPEQ:
case Opcodes.IF_ICMPNE:
case Opcodes.IF_ICMPLT:
case Opcodes.IF_ICMPGE:
case Opcodes.IF_ICMPGT:
case Opcodes.IF_ICMPLE:
case Opcodes.IF_ACMPEQ:
case Opcodes.IF_ACMPNE:
case Opcodes.LRETURN:
case Opcodes.DRETURN:
pop(2);
break;
case Opcodes.DUP:
t1 = pop();
push(t1);
push(t1);
break;
case Opcodes.DUP_X1:
t1 = pop();
t2 = pop();
push(t1);
push(t2);
push(t1);
break;
case Opcodes.DUP_X2:
t1 = pop();
t2 = pop();
t3 = pop();
push(t1);
push(t3);
push(t2);
push(t1);
break;
case Opcodes.DUP2:
t1 = pop();
t2 = pop();
push(t2);
push(t1);
push(t2);
push(t1);
break;
case Opcodes.DUP2_X1:
t1 = pop();
t2 = pop();
t3 = pop();
push(t2);
push(t1);
push(t3);
push(t2);
push(t1);
break;
case Opcodes.DUP2_X2:
t1 = pop();
t2 = pop();
t3 = pop();
t4 = pop();
push(t2);
push(t1);
push(t4);
push(t3);
push(t2);
push(t1);
break;
case Opcodes.SWAP:
t1 = pop();
t2 = pop();
push(t1);
push(t2);
break;
case Opcodes.IADD:
case Opcodes.ISUB:
case Opcodes.IMUL:
case Opcodes.IDIV:
case Opcodes.IREM:
case Opcodes.IAND:
case Opcodes.IOR:
case Opcodes.IXOR:
case Opcodes.ISHL:
case Opcodes.ISHR:
case Opcodes.IUSHR:
case Opcodes.L2I:
case Opcodes.D2I:
case Opcodes.FCMPL:
case Opcodes.FCMPG:
pop(2);
push(Opcodes.INTEGER);
break;
case Opcodes.LADD:
case Opcodes.LSUB:
case Opcodes.LMUL:
case Opcodes.LDIV:
case Opcodes.LREM:
case Opcodes.LAND:
case Opcodes.LOR:
case Opcodes.LXOR:
pop(4);
push(Opcodes.LONG);
push(Opcodes.TOP);
break;
case Opcodes.FADD:
case Opcodes.FSUB:
case Opcodes.FMUL:
case Opcodes.FDIV:
case Opcodes.FREM:
case Opcodes.L2F:
case Opcodes.D2F:
pop(2);
push(Opcodes.FLOAT);
break;
case Opcodes.DADD:
case Opcodes.DSUB:
case Opcodes.DMUL:
case Opcodes.DDIV:
case Opcodes.DREM:
pop(4);
push(Opcodes.DOUBLE);
push(Opcodes.TOP);
break;
case Opcodes.LSHL:
case Opcodes.LSHR:
case Opcodes.LUSHR:
pop(3);
push(Opcodes.LONG);
push(Opcodes.TOP);
break;
case Opcodes.IINC:
set(iarg, Opcodes.INTEGER);
break;
case Opcodes.I2L:
case Opcodes.F2L:
pop(1);
push(Opcodes.LONG);
push(Opcodes.TOP);
break;
case Opcodes.I2F:
pop(1);
push(Opcodes.FLOAT);
break;
case Opcodes.I2D:
case Opcodes.F2D:
pop(1);
push(Opcodes.DOUBLE);
push(Opcodes.TOP);
break;
case Opcodes.F2I:
case Opcodes.ARRAYLENGTH:
case Opcodes.INSTANCEOF:
pop(1);
push(Opcodes.INTEGER);
break;
case Opcodes.LCMP:
case Opcodes.DCMPL:
case Opcodes.DCMPG:
pop(4);
push(Opcodes.INTEGER);
break;
case Opcodes.JSR:
case Opcodes.RET:
throw new RuntimeException("JSR/RET are not supported");
case Opcodes.GETSTATIC:
pushDesc(sarg);
break;
case Opcodes.PUTSTATIC:
pop(sarg);
break;
case Opcodes.GETFIELD:
pop(1);
pushDesc(sarg);
break;
case Opcodes.PUTFIELD:
pop(sarg);
pop();
break;
case Opcodes.NEW:
push(labels.get(0));
break;
case Opcodes.NEWARRAY:
pop();
switch (iarg) {
case Opcodes.T_BOOLEAN:
pushDesc("[Z");
break;
case Opcodes.T_CHAR:
pushDesc("[C");
break;
case Opcodes.T_BYTE:
pushDesc("[B");
break;
case Opcodes.T_SHORT:
pushDesc("[S");
break;
case Opcodes.T_INT:
pushDesc("[I");
break;
case Opcodes.T_FLOAT:
pushDesc("[F");
break;
case Opcodes.T_DOUBLE:
pushDesc("[D");
break;
// case Opcodes.T_LONG:
default:
pushDesc("[J");
break;
}
break;
case Opcodes.ANEWARRAY:
pop();
pushDesc("[" + Type.getObjectType(sarg));
break;
case Opcodes.CHECKCAST:
pop();
pushDesc(Type.getObjectType(sarg).getDescriptor());
break;
// case Opcodes.MULTIANEWARRAY:
default:
pop(iarg);
pushDesc(sarg);
break;
}
labels = null;
}
}
