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aj.org.objectweb.asm.commons.AnalyzerAdapter Maven / Gradle / Ivy
AspectJ tools most notably contains the AspectJ compiler (AJC). AJC applies aspects to Java classes during
compilation, fully replacing Javac for plain Java classes and also compiling native AspectJ or annotation-based
@AspectJ syntax. Furthermore, AJC can weave aspects into existing class files in a post-compile binary weaving step.
This library is a superset of AspectJ weaver and hence also of AspectJ runtime.
// 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 aj.org.objectweb.asm.commons;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import aj.org.objectweb.asm.ConstantDynamic;
import aj.org.objectweb.asm.Handle;
import aj.org.objectweb.asm.Label;
import aj.org.objectweb.asm.MethodVisitor;
import aj.org.objectweb.asm.Opcodes;
import aj.org.objectweb.asm.Type;
/**
* A {@link MethodVisitor} that keeps track of stack map frame changes between {@link
* #visitFrame(int, int, Object[], int, Object[])} calls. This adapter must be used with the {@link
* aj.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 {
/**
* The local variable slots for the 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, see {@link
* Type#getInternalName()}), and uninitialized types by Label objects (this label designates the
* NEW instruction that created this uninitialized value). This field is {@literal null} for
* unreachable instructions.
*/
public List locals;
/**
* The operand stack slots for the 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, see {@link
* Type#getInternalName()}), and uninitialized types by Label objects (this label designates the
* NEW instruction that created this uninitialized value). This field is {@literal null} for
* unreachable instructions.
*/
public List stack;
/** The labels that designate the next instruction to be visited. May be {@literal null}. */
private List labels;
/**
* The uninitialized types in the current execution frame. This map associates internal names to
* Label objects (see {@link Type#getInternalName()}). 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;
/**
* Constructs 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 descriptor the method's descriptor (see {@link Type}).
* @param methodVisitor the method visitor to which this adapter delegates calls. May be {@literal
* null}.
* @throws IllegalStateException If a subclass calls this constructor.
*/
public AnalyzerAdapter(
final String owner,
final int access,
final String name,
final String descriptor,
final MethodVisitor methodVisitor) {
this(/* latest api = */ Opcodes.ASM9, owner, access, name, descriptor, methodVisitor);
if (getClass() != AnalyzerAdapter.class) {
throw new IllegalStateException();
}
}
/**
* Constructs a new {@link AnalyzerAdapter}.
*
* @param api the ASM API version implemented by this visitor. Must be one of the {@code
* ASM}x values in {@link Opcodes}.
* @param owner the owner's class name.
* @param access the method's access flags (see {@link Opcodes}).
* @param name the method's name.
* @param descriptor the method's descriptor (see {@link Type}).
* @param methodVisitor the method visitor to which this adapter delegates calls. May be {@literal
* null}.
*/
protected AnalyzerAdapter(
final int api,
final String owner,
final int access,
final String name,
final String descriptor,
final MethodVisitor methodVisitor) {
super(api, methodVisitor);
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);
}
}
for (Type argumentType : Type.getArgumentTypes(descriptor)) {
switch (argumentType.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(argumentType.getDescriptor());
break;
case Type.OBJECT:
locals.add(argumentType.getInternalName());
break;
default:
throw new AssertionError();
}
}
maxLocals = locals.size();
}
@Override
public void visitFrame(
final int type,
final int numLocal,
final Object[] local,
final int numStack,
final Object[] stack) {
if (type != Opcodes.F_NEW) { // Uncompressed frame.
throw new IllegalArgumentException(
"AnalyzerAdapter only accepts expanded frames (see ClassReader.EXPAND_FRAMES)");
}
super.visitFrame(type, numLocal, local, numStack, stack);
if (this.locals != null) {
this.locals.clear();
this.stack.clear();
} else {
this.locals = new ArrayList<>();
this.stack = new ArrayList<>();
}
visitFrameTypes(numLocal, local, this.locals);
visitFrameTypes(numStack, stack, this.stack);
maxLocals = Math.max(maxLocals, this.locals.size());
maxStack = Math.max(maxStack, this.stack.size());
}
private static void visitFrameTypes(
final int numTypes, final Object[] frameTypes, final List result) {
for (int i = 0; i < numTypes; ++i) {
Object frameType = frameTypes[i];
result.add(frameType);
if (frameType == Opcodes.LONG || frameType == Opcodes.DOUBLE) {
result.add(Opcodes.TOP);
}
}
}
@Override
public void visitInsn(final int opcode) {
super.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) {
super.visitIntInsn(opcode, operand);
execute(opcode, operand, null);
}
@Override
public void visitVarInsn(final int opcode, final int varIndex) {
super.visitVarInsn(opcode, varIndex);
boolean isLongOrDouble =
opcode == Opcodes.LLOAD
|| opcode == Opcodes.DLOAD
|| opcode == Opcodes.LSTORE
|| opcode == Opcodes.DSTORE;
maxLocals = Math.max(maxLocals, varIndex + (isLongOrDouble ? 2 : 1));
execute(opcode, varIndex, null);
}
@Override
public void visitTypeInsn(final int opcode, final String type) {
if (opcode == Opcodes.NEW) {
if (labels == null) {
Label label = new Label();
labels = new ArrayList<>(3);
labels.add(label);
if (mv != null) {
mv.visitLabel(label);
}
}
for (Label label : labels) {
uninitializedTypes.put(label, type);
}
}
super.visitTypeInsn(opcode, type);
execute(opcode, 0, type);
}
@Override
public void visitFieldInsn(
final int opcode, final String owner, final String name, final String descriptor) {
super.visitFieldInsn(opcode, owner, name, descriptor);
execute(opcode, 0, descriptor);
}
@Override
public void visitMethodInsn(
final int opcodeAndSource,
final String owner,
final String name,
final String descriptor,
final boolean isInterface) {
if (api < Opcodes.ASM5 && (opcodeAndSource & Opcodes.SOURCE_DEPRECATED) == 0) {
// Redirect the call to the deprecated version of this method.
super.visitMethodInsn(opcodeAndSource, owner, name, descriptor, isInterface);
return;
}
super.visitMethodInsn(opcodeAndSource, owner, name, descriptor, isInterface);
int opcode = opcodeAndSource & ~Opcodes.SOURCE_MASK;
if (this.locals == null) {
labels = null;
return;
}
pop(descriptor);
if (opcode != Opcodes.INVOKESTATIC) {
Object value = pop();
if (opcode == Opcodes.INVOKESPECIAL && name.equals("")) {
Object initializedValue;
if (value == Opcodes.UNINITIALIZED_THIS) {
initializedValue = this.owner;
} else {
initializedValue = owner;
}
for (int i = 0; i < locals.size(); ++i) {
if (locals.get(i) == value) {
locals.set(i, initializedValue);
}
}
for (int i = 0; i < stack.size(); ++i) {
if (stack.get(i) == value) {
stack.set(i, initializedValue);
}
}
}
}
pushDescriptor(descriptor);
labels = null;
}
@Override
public void visitInvokeDynamicInsn(
final String name,
final String descriptor,
final Handle bootstrapMethodHandle,
final Object... bootstrapMethodArguments) {
super.visitInvokeDynamicInsn(name, descriptor, bootstrapMethodHandle, bootstrapMethodArguments);
if (this.locals == null) {
labels = null;
return;
}
pop(descriptor);
pushDescriptor(descriptor);
labels = null;
}
@Override
public void visitJumpInsn(final int opcode, final Label label) {
super.visitJumpInsn(opcode, label);
execute(opcode, 0, null);
if (opcode == Opcodes.GOTO) {
this.locals = null;
this.stack = null;
}
}
@Override
public void visitLabel(final Label label) {
super.visitLabel(label);
if (labels == null) {
labels = new ArrayList<>(3);
}
labels.add(label);
}
@Override
public void visitLdcInsn(final Object value) {
super.visitLdcInsn(value);
if (this.locals == null) {
labels = null;
return;
}
if (value instanceof Integer) {
push(Opcodes.INTEGER);
} else if (value instanceof Long) {
push(Opcodes.LONG);
push(Opcodes.TOP);
} else if (value instanceof Float) {
push(Opcodes.FLOAT);
} else if (value instanceof Double) {
push(Opcodes.DOUBLE);
push(Opcodes.TOP);
} else if (value instanceof String) {
push("java/lang/String");
} else if (value instanceof Type) {
int sort = ((Type) value).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 (value instanceof Handle) {
push("java/lang/invoke/MethodHandle");
} else if (value instanceof ConstantDynamic) {
pushDescriptor(((ConstantDynamic) value).getDescriptor());
} else {
throw new IllegalArgumentException();
}
labels = null;
}
@Override
public void visitIincInsn(final int varIndex, final int increment) {
super.visitIincInsn(varIndex, increment);
maxLocals = Math.max(maxLocals, varIndex + 1);
execute(Opcodes.IINC, varIndex, null);
}
@Override
public void visitTableSwitchInsn(
final int min, final int max, final Label dflt, final Label... labels) {
super.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) {
super.visitLookupSwitchInsn(dflt, keys, labels);
execute(Opcodes.LOOKUPSWITCH, 0, null);
this.locals = null;
this.stack = null;
}
@Override
public void visitMultiANewArrayInsn(final String descriptor, final int numDimensions) {
super.visitMultiANewArrayInsn(descriptor, numDimensions);
execute(Opcodes.MULTIANEWARRAY, numDimensions, descriptor);
}
@Override
public void visitLocalVariable(
final String name,
final String descriptor,
final String signature,
final Label start,
final Label end,
final int index) {
char firstDescriptorChar = descriptor.charAt(0);
maxLocals =
Math.max(
maxLocals, index + (firstDescriptorChar == 'J' || firstDescriptorChar == 'D' ? 2 : 1));
super.visitLocalVariable(name, descriptor, signature, start, end, index);
}
@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 + 1);
return local < locals.size() ? locals.get(local) : Opcodes.TOP;
}
private void set(final int local, final Object type) {
maxLocals = Math.max(maxLocals, local + 1);
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 pushDescriptor(final String fieldOrMethodDescriptor) {
String descriptor =
fieldOrMethodDescriptor.charAt(0) == '('
? Type.getReturnType(fieldOrMethodDescriptor).getDescriptor()
: fieldOrMethodDescriptor;
switch (descriptor.charAt(0)) {
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 '[':
push(descriptor);
break;
case 'L':
push(descriptor.substring(1, descriptor.length() - 1));
break;
default:
throw new AssertionError();
}
}
private Object pop() {
return stack.remove(stack.size() - 1);
}
private void pop(final int numSlots) {
int size = stack.size();
int end = size - numSlots;
for (int i = size - 1; i >= end; --i) {
stack.remove(i);
}
}
private void pop(final String descriptor) {
char firstDescriptorChar = descriptor.charAt(0);
if (firstDescriptorChar == '(') {
int numSlots = 0;
Type[] types = Type.getArgumentTypes(descriptor);
for (Type type : types) {
numSlots += type.getSize();
}
pop(numSlots);
} else if (firstDescriptorChar == 'J' || firstDescriptorChar == 'D') {
pop(2);
} else {
pop(1);
}
}
private void execute(final int opcode, final int intArg, final String stringArg) {
if (opcode == Opcodes.JSR || opcode == Opcodes.RET) {
throw new IllegalArgumentException("JSR/RET are not supported");
}
if (this.locals == null) {
labels = null;
return;
}
Object value1;
Object value2;
Object value3;
Object 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(intArg));
break;
case Opcodes.LLOAD:
case Opcodes.DLOAD:
push(get(intArg));
push(Opcodes.TOP);
break;
case Opcodes.LALOAD:
case Opcodes.D2L:
pop(2);
push(Opcodes.LONG);
push(Opcodes.TOP);
break;
case Opcodes.DALOAD:
case Opcodes.L2D:
pop(2);
push(Opcodes.DOUBLE);
push(Opcodes.TOP);
break;
case Opcodes.AALOAD:
pop(1);
value1 = pop();
if (value1 instanceof String) {
pushDescriptor(((String) value1).substring(1));
} else if (value1 == Opcodes.NULL) {
push(value1);
} else {
push("java/lang/Object");
}
break;
case Opcodes.ISTORE:
case Opcodes.FSTORE:
case Opcodes.ASTORE:
value1 = pop();
set(intArg, value1);
if (intArg > 0) {
value2 = get(intArg - 1);
if (value2 == Opcodes.LONG || value2 == Opcodes.DOUBLE) {
set(intArg - 1, Opcodes.TOP);
}
}
break;
case Opcodes.LSTORE:
case Opcodes.DSTORE:
pop(1);
value1 = pop();
set(intArg, value1);
set(intArg + 1, Opcodes.TOP);
if (intArg > 0) {
value2 = get(intArg - 1);
if (value2 == Opcodes.LONG || value2 == Opcodes.DOUBLE) {
set(intArg - 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:
value1 = pop();
push(value1);
push(value1);
break;
case Opcodes.DUP_X1:
value1 = pop();
value2 = pop();
push(value1);
push(value2);
push(value1);
break;
case Opcodes.DUP_X2:
value1 = pop();
value2 = pop();
value3 = pop();
push(value1);
push(value3);
push(value2);
push(value1);
break;
case Opcodes.DUP2:
value1 = pop();
value2 = pop();
push(value2);
push(value1);
push(value2);
push(value1);
break;
case Opcodes.DUP2_X1:
value1 = pop();
value2 = pop();
value3 = pop();
push(value2);
push(value1);
push(value3);
push(value2);
push(value1);
break;
case Opcodes.DUP2_X2:
value1 = pop();
value2 = pop();
value3 = pop();
t4 = pop();
push(value2);
push(value1);
push(t4);
push(value3);
push(value2);
push(value1);
break;
case Opcodes.SWAP:
value1 = pop();
value2 = pop();
push(value1);
push(value2);
break;
case Opcodes.IALOAD:
case Opcodes.BALOAD:
case Opcodes.CALOAD:
case Opcodes.SALOAD:
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.FALOAD:
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(intArg, 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.GETSTATIC:
pushDescriptor(stringArg);
break;
case Opcodes.PUTSTATIC:
pop(stringArg);
break;
case Opcodes.GETFIELD:
pop(1);
pushDescriptor(stringArg);
break;
case Opcodes.PUTFIELD:
pop(stringArg);
pop();
break;
case Opcodes.NEW:
push(labels.get(0));
break;
case Opcodes.NEWARRAY:
pop();
switch (intArg) {
case Opcodes.T_BOOLEAN:
pushDescriptor("[Z");
break;
case Opcodes.T_CHAR:
pushDescriptor("[C");
break;
case Opcodes.T_BYTE:
pushDescriptor("[B");
break;
case Opcodes.T_SHORT:
pushDescriptor("[S");
break;
case Opcodes.T_INT:
pushDescriptor("[I");
break;
case Opcodes.T_FLOAT:
pushDescriptor("[F");
break;
case Opcodes.T_DOUBLE:
pushDescriptor("[D");
break;
case Opcodes.T_LONG:
pushDescriptor("[J");
break;
default:
throw new IllegalArgumentException("Invalid array type " + intArg);
}
break;
case Opcodes.ANEWARRAY:
pop();
pushDescriptor("[" + Type.getObjectType(stringArg));
break;
case Opcodes.CHECKCAST:
pop();
pushDescriptor(Type.getObjectType(stringArg).getDescriptor());
break;
case Opcodes.MULTIANEWARRAY:
pop(intArg);
pushDescriptor(stringArg);
break;
default:
throw new IllegalArgumentException("Invalid opcode " + opcode);
}
labels = null;
}
}
