Java Code Examples for org.objectweb.asm.MethodVisitor#visitTableSwitchInsn()
The following examples show how to use
org.objectweb.asm.MethodVisitor#visitTableSwitchInsn() .
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Example 1
| Source File: SwitchStmt.java From maple-ir with GNU General Public License v3.0 | 6 votes |
|
@Override
public void toCode(MethodVisitor visitor, BytecodeFrontend assembler) {
if (needsSort()) {
sort();
}
int[] cases = new int[targets.size()];
Label[] labels = new Label[targets.size()];
int j = 0;
for (Entry<Integer, BasicBlock> e : targets.entrySet()) {
cases[j] = e.getKey();
labels[j++] = assembler.getLabel(e.getValue());
}
expression.toCode(visitor, assembler);
int[] cast = TypeUtils.getPrimitiveCastOpcodes(expression.getType(), Type.INT_TYPE); // widen
for (int i = 0; i < cast.length; i++) {
visitor.visitInsn(cast[i]);
}
boolean fitsIntoTable = fitsIntoTableSwitch();
if (fitsIntoTable) {
visitor.visitTableSwitchInsn(cases[0], cases[cases.length - 1], assembler.getLabel(defaultTarget), labels);
} else {
visitor.visitLookupSwitchInsn(assembler.getLabel(defaultTarget), cases, labels);
}
}
Example 2
| Source File: TableSwitchInsnNode.java From Concurnas with MIT License | 5 votes |
|
@Override
public void accept(final MethodVisitor methodVisitor) {
Label[] labelsArray = new Label[this.labels.size()];
for (int i = 0, n = labelsArray.length; i < n; ++i) {
labelsArray[i] = this.labels.get(i).getLabel();
}
methodVisitor.visitTableSwitchInsn(min, max, dflt.getLabel(), labelsArray);
acceptAnnotations(methodVisitor);
}
Example 3
| Source File: TableSwitchInsnNode.java From Cafebabe with GNU General Public License v3.0 | 5 votes |
|
@Override
public void accept(final MethodVisitor methodVisitor) {
Label[] labelsArray = new Label[this.labels.size()];
for (int i = 0, n = labelsArray.length; i < n; ++i) {
labelsArray[i] = this.labels.get(i).getLabel();
}
methodVisitor.visitTableSwitchInsn(min, max, dflt.getLabel(), labelsArray);
acceptAnnotations(methodVisitor);
}
Example 4
| Source File: TableSwitchInsnNode.java From JByteMod-Beta with GNU General Public License v2.0 | 5 votes |
|
@Override
public void accept(final MethodVisitor mv) {
Label[] labels = new Label[this.labels.size()];
for (int i = 0; i < labels.length; ++i) {
labels[i] = this.labels.get(i).getLabel();
}
mv.visitTableSwitchInsn(min, max, dflt.getLabel(), labels);
acceptAnnotations(mv);
}
Example 5
| Source File: TableSwitchInsnNode.java From JReFrameworker with MIT License | 5 votes |
|
@Override
public void accept(final MethodVisitor methodVisitor) {
Label[] labelsArray = new Label[this.labels.size()];
for (int i = 0, n = labelsArray.length; i < n; ++i) {
labelsArray[i] = this.labels.get(i).getLabel();
}
methodVisitor.visitTableSwitchInsn(min, max, dflt.getLabel(), labelsArray);
acceptAnnotations(methodVisitor);
}
Example 6
| Source File: TableSwitchInsnNode.java From JReFrameworker with MIT License | 5 votes |
|
@Override
public void accept(final MethodVisitor methodVisitor) {
Label[] labelsArray = new Label[this.labels.size()];
for (int i = 0, n = labelsArray.length; i < n; ++i) {
labelsArray[i] = this.labels.get(i).getLabel();
}
methodVisitor.visitTableSwitchInsn(min, max, dflt.getLabel(), labelsArray);
acceptAnnotations(methodVisitor);
}
Example 7
| Source File: ASMGen.java From beetl2.0 with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
public static byte[] dump() throws Exception {
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
FieldVisitor fv;
MethodVisitor mv;
AnnotationVisitor av0;
cw.visit(V1_6, ACC_PUBLIC + ACC_SUPER,
"com/beetl/performance/lab/asm/UserAsmAccessor1", null,
"java/lang/Object",
new String[] { "com/beetl/performance/lab/asm/Access" });
{
mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>",
"()V");
mv.visitInsn(RETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
}
{
mv = cw.visitMethod(
ACC_PUBLIC,
"get",
"(Ljava/lang/Object;I)Ljava/lang/Object;",
null,
new String[] { "com/beetl/performance/lab/asm/ASMCastException" });
mv.visitCode();
Label l0 = new Label();
Label l1 = new Label();
Label l2 = new Label();
mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");
mv.visitInsn(ACONST_NULL);
mv.visitVarInsn(ASTORE, 3);
mv.visitLabel(l0);
mv.visitVarInsn(ALOAD, 1);
mv.visitTypeInsn(CHECKCAST, "com/beetl/performance/lab/User");
mv.visitVarInsn(ASTORE, 3);
mv.visitLabel(l1);
Label l3 = new Label();
mv.visitJumpInsn(GOTO, l3);
mv.visitLabel(l2);
mv.visitFrame(Opcodes.F_FULL, 4, new Object[] {
"com/beetl/performance/lab/asm/UserAsmAccessor",
"java/lang/Object", Opcodes.INTEGER,
"com/beetl/performance/lab/User" }, 1,
new Object[] { "java/lang/Exception" });
mv.visitVarInsn(ASTORE, 4);
mv.visitTypeInsn(NEW,
"com/beetl/performance/lab/asm/ASMCastException");
mv.visitInsn(DUP);
mv.visitMethodInsn(INVOKESPECIAL,
"com/beetl/performance/lab/asm/ASMCastException", "<init>",
"()V");
mv.visitInsn(ATHROW);
mv.visitLabel(l3);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
mv.visitVarInsn(ILOAD, 2);
Label l4 = new Label();
Label l5 = new Label();
Label l6 = new Label();
mv.visitTableSwitchInsn(1, 2, l6, new Label[] { l4, l5 });
mv.visitLabel(l4);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 3);
mv.visitMethodInsn(INVOKEVIRTUAL, "com/beetl/performance/lab/User",
"getName", "()Ljava/lang/String;");
mv.visitInsn(ARETURN);
mv.visitLabel(l5);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 3);
mv.visitMethodInsn(INVOKEVIRTUAL, "com/beetl/performance/lab/User",
"getId", "()I");
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "valueOf",
"(I)Ljava/lang/Integer;");
mv.visitInsn(ARETURN);
mv.visitLabel(l6);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
mv.visitTypeInsn(NEW, "java/lang/RuntimeException");
mv.visitInsn(DUP);
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/RuntimeException",
"<init>", "()V");
mv.visitInsn(ATHROW);
mv.visitMaxs(2, 5);
mv.visitEnd();
}
cw.visitEnd();
return cw.toByteArray();
}
Example 8
| Source File: ASMGen.java From beetl2.0 with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
public static byte[] dump() throws Exception {
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
FieldVisitor fv;
MethodVisitor mv;
AnnotationVisitor av0;
cw.visit(V1_6, ACC_PUBLIC + ACC_SUPER,
"com/beetl/performance/lab/asm/UserAsmAccessor1", null,
"java/lang/Object",
new String[] { "com/beetl/performance/lab/asm/Access" });
{
mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>",
"()V");
mv.visitInsn(RETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
}
{
mv = cw.visitMethod(
ACC_PUBLIC,
"get",
"(Ljava/lang/Object;I)Ljava/lang/Object;",
null,
new String[] { "com/beetl/performance/lab/asm/ASMCastException" });
mv.visitCode();
Label l0 = new Label();
Label l1 = new Label();
Label l2 = new Label();
mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");
mv.visitInsn(ACONST_NULL);
mv.visitVarInsn(ASTORE, 3);
mv.visitLabel(l0);
mv.visitVarInsn(ALOAD, 1);
mv.visitTypeInsn(CHECKCAST, "com/beetl/performance/lab/User");
mv.visitVarInsn(ASTORE, 3);
mv.visitLabel(l1);
Label l3 = new Label();
mv.visitJumpInsn(GOTO, l3);
mv.visitLabel(l2);
mv.visitFrame(Opcodes.F_FULL, 4, new Object[] {
"com/beetl/performance/lab/asm/UserAsmAccessor",
"java/lang/Object", Opcodes.INTEGER,
"com/beetl/performance/lab/User" }, 1,
new Object[] { "java/lang/Exception" });
mv.visitVarInsn(ASTORE, 4);
mv.visitTypeInsn(NEW,
"com/beetl/performance/lab/asm/ASMCastException");
mv.visitInsn(DUP);
mv.visitMethodInsn(INVOKESPECIAL,
"com/beetl/performance/lab/asm/ASMCastException", "<init>",
"()V");
mv.visitInsn(ATHROW);
mv.visitLabel(l3);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
mv.visitVarInsn(ILOAD, 2);
Label l4 = new Label();
Label l5 = new Label();
Label l6 = new Label();
mv.visitTableSwitchInsn(1, 2, l6, new Label[] { l4, l5 });
mv.visitLabel(l4);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 3);
mv.visitMethodInsn(INVOKEVIRTUAL, "com/beetl/performance/lab/User",
"getName", "()Ljava/lang/String;");
mv.visitInsn(ARETURN);
mv.visitLabel(l5);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 3);
mv.visitMethodInsn(INVOKEVIRTUAL, "com/beetl/performance/lab/User",
"getId", "()I");
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "valueOf",
"(I)Ljava/lang/Integer;");
mv.visitInsn(ARETURN);
mv.visitLabel(l6);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
mv.visitTypeInsn(NEW, "java/lang/RuntimeException");
mv.visitInsn(DUP);
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/RuntimeException",
"<init>", "()V");
mv.visitInsn(ATHROW);
mv.visitMaxs(2, 5);
mv.visitEnd();
}
cw.visitEnd();
return cw.toByteArray();
}
Example 9
| Source File: BlockSpaceTransform.java From OpenModsLib with MIT License | 4 votes |
|
private static void createTransformMethod(MethodVisitor mv, boolean invert) {
// 0 - this (unused)
// 1 - orientation
// 2,3 - x
// 4,5 - y
// 6,7 - z
mv.visitCode();
mv.visitVarInsn(Opcodes.ALOAD, 1);
final String enumType = Type.getInternalName(Enum.class);
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, enumType, "ordinal", Type.getMethodDescriptor(Type.INT_TYPE), false);
final Orientation[] orientations = Orientation.values();
final Label defaultLabel = new Label();
final Label[] targets = new Label[orientations.length];
for (int i = 0; i < orientations.length; i++)
targets[i] = new Label();
mv.visitTableSwitchInsn(0, orientations.length - 1, defaultLabel, targets);
{
mv.visitLabel(defaultLabel);
final String excType = Type.getInternalName(IllegalArgumentException.class);
final Type stringType = Type.getType(String.class);
mv.visitTypeInsn(Opcodes.NEW, excType);
mv.visitInsn(Opcodes.DUP);
mv.visitVarInsn(Opcodes.ALOAD, 1);
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(Object.class), "toString", Type.getMethodDescriptor(stringType), false);
mv.visitMethodInsn(Opcodes.INVOKESPECIAL, excType, "<init>", Type.getMethodDescriptor(Type.VOID_TYPE, stringType), false);
mv.visitInsn(Opcodes.ATHROW);
}
{
final String createVectorDesc = Type.getMethodDescriptor(Type.getType(Vec3d.class), Type.DOUBLE_TYPE, Type.DOUBLE_TYPE, Type.DOUBLE_TYPE);
final String selfType = Type.getInternalName(BlockSpaceTransform.class);
for (int i = 0; i < orientations.length; i++) {
mv.visitLabel(targets[i]);
final Orientation orientation = orientations[i];
final Matrix3f mat = orientation.getLocalToWorldMatrix();
if (invert) mat.invert();
createRowVectorMultiplication(mv, mat.m00, mat.m01, mat.m02);
createRowVectorMultiplication(mv, mat.m10, mat.m11, mat.m12);
createRowVectorMultiplication(mv, mat.m20, mat.m21, mat.m22);
mv.visitMethodInsn(Opcodes.INVOKESTATIC, selfType, "createVector", createVectorDesc, false);
mv.visitInsn(Opcodes.ARETURN);
}
}
mv.visitMaxs(0, 0);
mv.visitEnd();
}
Example 10
| Source File: FieldAccess.java From reflectasm with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
static private void insertGetPrimitive (ClassWriter cw, String classNameInternal, ArrayList<Field> fields,
Type primitiveType) {
int maxStack = 6;
final String getterMethodName;
final String typeNameInternal = primitiveType.getDescriptor();
final int returnValueInstruction;
switch (primitiveType.getSort()) {
case Type.BOOLEAN:
getterMethodName = "getBoolean";
returnValueInstruction = IRETURN;
break;
case Type.BYTE:
getterMethodName = "getByte";
returnValueInstruction = IRETURN;
break;
case Type.CHAR:
getterMethodName = "getChar";
returnValueInstruction = IRETURN;
break;
case Type.SHORT:
getterMethodName = "getShort";
returnValueInstruction = IRETURN;
break;
case Type.INT:
getterMethodName = "getInt";
returnValueInstruction = IRETURN;
break;
case Type.FLOAT:
getterMethodName = "getFloat";
returnValueInstruction = FRETURN;
break;
case Type.LONG:
getterMethodName = "getLong";
returnValueInstruction = LRETURN;
break;
case Type.DOUBLE:
getterMethodName = "getDouble";
returnValueInstruction = DRETURN;
break;
default:
getterMethodName = "get";
returnValueInstruction = ARETURN;
break;
}
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, getterMethodName, "(Ljava/lang/Object;I)" + typeNameInternal, null, null);
mv.visitCode();
mv.visitVarInsn(ILOAD, 2);
if (!fields.isEmpty()) {
maxStack--;
Label[] labels = new Label[fields.size()];
Label labelForInvalidTypes = new Label();
boolean hasAnyBadTypeLabel = false;
for (int i = 0, n = labels.length; i < n; i++) {
if (Type.getType(fields.get(i).getType()).equals(primitiveType))
labels[i] = new Label();
else {
labels[i] = labelForInvalidTypes;
hasAnyBadTypeLabel = true;
}
}
Label defaultLabel = new Label();
mv.visitTableSwitchInsn(0, labels.length - 1, defaultLabel, labels);
for (int i = 0, n = labels.length; i < n; i++) {
Field field = fields.get(i);
if (!labels[i].equals(labelForInvalidTypes)) {
mv.visitLabel(labels[i]);
mv.visitFrame(F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 1);
mv.visitTypeInsn(CHECKCAST, classNameInternal);
mv.visitFieldInsn(GETFIELD, field.getDeclaringClass().getName().replace('.', '/'), field.getName(),
typeNameInternal);
mv.visitInsn(returnValueInstruction);
}
}
// Rest of fields: different type
if (hasAnyBadTypeLabel) {
mv.visitLabel(labelForInvalidTypes);
mv.visitFrame(F_SAME, 0, null, 0, null);
insertThrowExceptionForFieldType(mv, primitiveType.getClassName());
}
// Default: field not found
mv.visitLabel(defaultLabel);
mv.visitFrame(F_SAME, 0, null, 0, null);
}
mv = insertThrowExceptionForFieldNotFound(mv);
mv.visitMaxs(maxStack, 3);
mv.visitEnd();
}
Example 11
| Source File: FieldAccess.java From reflectasm with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
static private void insertSetPrimitive (ClassWriter cw, String classNameInternal, ArrayList<Field> fields,
Type primitiveType) {
int maxStack = 6;
int maxLocals = 4; // See correction below for LLOAD and DLOAD
final String setterMethodName;
final String typeNameInternal = primitiveType.getDescriptor();
final int loadValueInstruction;
switch (primitiveType.getSort()) {
case Type.BOOLEAN:
setterMethodName = "setBoolean";
loadValueInstruction = ILOAD;
break;
case Type.BYTE:
setterMethodName = "setByte";
loadValueInstruction = ILOAD;
break;
case Type.CHAR:
setterMethodName = "setChar";
loadValueInstruction = ILOAD;
break;
case Type.SHORT:
setterMethodName = "setShort";
loadValueInstruction = ILOAD;
break;
case Type.INT:
setterMethodName = "setInt";
loadValueInstruction = ILOAD;
break;
case Type.FLOAT:
setterMethodName = "setFloat";
loadValueInstruction = FLOAD;
break;
case Type.LONG:
setterMethodName = "setLong";
loadValueInstruction = LLOAD;
maxLocals++; // (LLOAD and DLOAD actually load two slots)
break;
case Type.DOUBLE:
setterMethodName = "setDouble";
loadValueInstruction = DLOAD;
maxLocals++; // (LLOAD and DLOAD actually load two slots)
break;
default:
setterMethodName = "set";
loadValueInstruction = ALOAD;
break;
}
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, setterMethodName, "(Ljava/lang/Object;I" + typeNameInternal + ")V", null,
null);
mv.visitCode();
mv.visitVarInsn(ILOAD, 2);
if (!fields.isEmpty()) {
maxStack--;
Label[] labels = new Label[fields.size()];
Label labelForInvalidTypes = new Label();
boolean hasAnyBadTypeLabel = false;
for (int i = 0, n = labels.length; i < n; i++) {
if (Type.getType(fields.get(i).getType()).equals(primitiveType))
labels[i] = new Label();
else {
labels[i] = labelForInvalidTypes;
hasAnyBadTypeLabel = true;
}
}
Label defaultLabel = new Label();
mv.visitTableSwitchInsn(0, labels.length - 1, defaultLabel, labels);
for (int i = 0, n = labels.length; i < n; i++) {
if (!labels[i].equals(labelForInvalidTypes)) {
Field field = fields.get(i);
mv.visitLabel(labels[i]);
mv.visitFrame(F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 1);
mv.visitTypeInsn(CHECKCAST, classNameInternal);
mv.visitVarInsn(loadValueInstruction, 3);
mv.visitFieldInsn(PUTFIELD, field.getDeclaringClass().getName().replace('.', '/'), field.getName(),
typeNameInternal);
mv.visitInsn(RETURN);
}
}
// Rest of fields: different type
if (hasAnyBadTypeLabel) {
mv.visitLabel(labelForInvalidTypes);
mv.visitFrame(F_SAME, 0, null, 0, null);
insertThrowExceptionForFieldType(mv, primitiveType.getClassName());
}
// Default: field not found
mv.visitLabel(defaultLabel);
mv.visitFrame(F_SAME, 0, null, 0, null);
}
mv = insertThrowExceptionForFieldNotFound(mv);
mv.visitMaxs(maxStack, maxLocals);
mv.visitEnd();
}
Example 12
| Source File: FieldAccess.java From reflectasm with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
static private void insertGetString (ClassWriter cw, String classNameInternal, ArrayList<Field> fields) {
int maxStack = 6;
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "getString", "(Ljava/lang/Object;I)Ljava/lang/String;", null, null);
mv.visitCode();
mv.visitVarInsn(ILOAD, 2);
if (!fields.isEmpty()) {
maxStack--;
Label[] labels = new Label[fields.size()];
Label labelForInvalidTypes = new Label();
boolean hasAnyBadTypeLabel = false;
for (int i = 0, n = labels.length; i < n; i++) {
if (fields.get(i).getType().equals(String.class))
labels[i] = new Label();
else {
labels[i] = labelForInvalidTypes;
hasAnyBadTypeLabel = true;
}
}
Label defaultLabel = new Label();
mv.visitTableSwitchInsn(0, labels.length - 1, defaultLabel, labels);
for (int i = 0, n = labels.length; i < n; i++) {
if (!labels[i].equals(labelForInvalidTypes)) {
Field field = fields.get(i);
mv.visitLabel(labels[i]);
mv.visitFrame(F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 1);
mv.visitTypeInsn(CHECKCAST, classNameInternal);
mv.visitFieldInsn(GETFIELD, field.getDeclaringClass().getName().replace('.', '/'), field.getName(),
"Ljava/lang/String;");
mv.visitInsn(ARETURN);
}
}
// Rest of fields: different type
if (hasAnyBadTypeLabel) {
mv.visitLabel(labelForInvalidTypes);
mv.visitFrame(F_SAME, 0, null, 0, null);
insertThrowExceptionForFieldType(mv, "String");
}
// Default: field not found
mv.visitLabel(defaultLabel);
mv.visitFrame(F_SAME, 0, null, 0, null);
}
insertThrowExceptionForFieldNotFound(mv);
mv.visitMaxs(maxStack, 3);
mv.visitEnd();
}
Example 13
| Source File: FieldAccess.java From reflectasm with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
static private void insertGetObject (ClassWriter cw, String classNameInternal, ArrayList<Field> fields) {
int maxStack = 6;
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "get", "(Ljava/lang/Object;I)Ljava/lang/Object;", null, null);
mv.visitCode();
mv.visitVarInsn(ILOAD, 2);
if (!fields.isEmpty()) {
maxStack--;
Label[] labels = new Label[fields.size()];
for (int i = 0, n = labels.length; i < n; i++)
labels[i] = new Label();
Label defaultLabel = new Label();
mv.visitTableSwitchInsn(0, labels.length - 1, defaultLabel, labels);
for (int i = 0, n = labels.length; i < n; i++) {
Field field = fields.get(i);
mv.visitLabel(labels[i]);
mv.visitFrame(F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 1);
mv.visitTypeInsn(CHECKCAST, classNameInternal);
mv.visitFieldInsn(GETFIELD, field.getDeclaringClass().getName().replace('.', '/'), field.getName(),
Type.getDescriptor(field.getType()));
Type fieldType = Type.getType(field.getType());
switch (fieldType.getSort()) {
case Type.BOOLEAN:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Boolean", "valueOf", "(Z)Ljava/lang/Boolean;");
break;
case Type.BYTE:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Byte", "valueOf", "(B)Ljava/lang/Byte;");
break;
case Type.CHAR:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Character", "valueOf", "(C)Ljava/lang/Character;");
break;
case Type.SHORT:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Short", "valueOf", "(S)Ljava/lang/Short;");
break;
case Type.INT:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "valueOf", "(I)Ljava/lang/Integer;");
break;
case Type.FLOAT:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Float", "valueOf", "(F)Ljava/lang/Float;");
break;
case Type.LONG:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Long", "valueOf", "(J)Ljava/lang/Long;");
break;
case Type.DOUBLE:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Double", "valueOf", "(D)Ljava/lang/Double;");
break;
}
mv.visitInsn(ARETURN);
}
mv.visitLabel(defaultLabel);
mv.visitFrame(F_SAME, 0, null, 0, null);
}
insertThrowExceptionForFieldNotFound(mv);
mv.visitMaxs(maxStack, 3);
mv.visitEnd();
}
Example 14
| Source File: FieldAccess.java From reflectasm with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
static private void insertSetObject (ClassWriter cw, String classNameInternal, ArrayList<Field> fields) {
int maxStack = 6;
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "set", "(Ljava/lang/Object;ILjava/lang/Object;)V", null, null);
mv.visitCode();
mv.visitVarInsn(ILOAD, 2);
if (!fields.isEmpty()) {
maxStack--;
Label[] labels = new Label[fields.size()];
for (int i = 0, n = labels.length; i < n; i++)
labels[i] = new Label();
Label defaultLabel = new Label();
mv.visitTableSwitchInsn(0, labels.length - 1, defaultLabel, labels);
for (int i = 0, n = labels.length; i < n; i++) {
Field field = fields.get(i);
Type fieldType = Type.getType(field.getType());
mv.visitLabel(labels[i]);
mv.visitFrame(F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 1);
mv.visitTypeInsn(CHECKCAST, classNameInternal);
mv.visitVarInsn(ALOAD, 3);
switch (fieldType.getSort()) {
case Type.BOOLEAN:
mv.visitTypeInsn(CHECKCAST, "java/lang/Boolean");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Boolean", "booleanValue", "()Z");
break;
case Type.BYTE:
mv.visitTypeInsn(CHECKCAST, "java/lang/Byte");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Byte", "byteValue", "()B");
break;
case Type.CHAR:
mv.visitTypeInsn(CHECKCAST, "java/lang/Character");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Character", "charValue", "()C");
break;
case Type.SHORT:
mv.visitTypeInsn(CHECKCAST, "java/lang/Short");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Short", "shortValue", "()S");
break;
case Type.INT:
mv.visitTypeInsn(CHECKCAST, "java/lang/Integer");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Integer", "intValue", "()I");
break;
case Type.FLOAT:
mv.visitTypeInsn(CHECKCAST, "java/lang/Float");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Float", "floatValue", "()F");
break;
case Type.LONG:
mv.visitTypeInsn(CHECKCAST, "java/lang/Long");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Long", "longValue", "()J");
break;
case Type.DOUBLE:
mv.visitTypeInsn(CHECKCAST, "java/lang/Double");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Double", "doubleValue", "()D");
break;
case Type.ARRAY:
mv.visitTypeInsn(CHECKCAST, fieldType.getDescriptor());
break;
case Type.OBJECT:
mv.visitTypeInsn(CHECKCAST, fieldType.getInternalName());
break;
}
mv.visitFieldInsn(PUTFIELD, field.getDeclaringClass().getName().replace('.', '/'), field.getName(),
fieldType.getDescriptor());
mv.visitInsn(RETURN);
}
mv.visitLabel(defaultLabel);
mv.visitFrame(F_SAME, 0, null, 0, null);
}
mv = insertThrowExceptionForFieldNotFound(mv);
mv.visitMaxs(maxStack, 4);
mv.visitEnd();
}
Example 15
| Source File: AsmClassAccess.java From jadira with Apache License 2.0 | 4 votes |
|
private static void enhanceForGetValuePrimitive(ClassVisitor cw, String accessClassNm, String clazzNm, Field[] fields, Type type) {
String methodName;
final String typeNm = type.getDescriptor();
final int instruction;
switch (type.getSort()) {
case Type.BOOLEAN:
methodName = "getBooleanValue";
instruction = IRETURN;
break;
case Type.BYTE:
methodName = "getByteValue";
instruction = IRETURN;
break;
case Type.CHAR:
methodName = "getCharValue";
instruction = IRETURN;
break;
case Type.SHORT:
methodName = "getShortValue";
instruction = IRETURN;
break;
case Type.INT:
methodName = "getIntValue";
instruction = IRETURN;
break;
case Type.FLOAT:
methodName = "getFloatValue";
instruction = FRETURN;
break;
case Type.LONG:
methodName = "getLongValue";
instruction = LRETURN;
break;
case Type.DOUBLE:
methodName = "getDoubleValue";
instruction = DRETURN;
break;
default:
methodName = "getValue";
instruction = ARETURN;
break;
}
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, methodName, "(Ljava/lang/Object;Ljava/lang/String;)" + typeNm, null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, accessClassNm, "fieldNames", "[Ljava/lang/String;");
mv.visitVarInsn(ALOAD, 2);
mv.visitMethodInsn(INVOKESTATIC, "java/util/Arrays", "binarySearch", "([Ljava/lang/Object;Ljava/lang/Object;)I");
mv.visitVarInsn(ISTORE, 3);
mv.visitVarInsn(ILOAD, 3);
final int maxStack;
if (fields.length > 0) {
maxStack = 5;
Label[] labels = constructLabels(fields);
Label defaultLabel = new Label();
mv.visitTableSwitchInsn(0, labels.length - 1, defaultLabel, labels);
for (int i = 0, n = labels.length; i < n; i++) {
Field field = fields[i];
mv.visitLabel(labels[i]);
mv.visitFrame(F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 1);
mv.visitTypeInsn(CHECKCAST, clazzNm);
mv.visitFieldInsn(GETFIELD, clazzNm, field.getName(), typeNm);
mv.visitInsn(instruction);
}
mv.visitLabel(defaultLabel);
mv.visitFrame(F_SAME, 0, null, 0, null);
} else {
maxStack = 6;
}
enhanceForThrowingException(mv, IllegalArgumentException.class, "Field was not found", "Ljava/lang/Object;", ALOAD, 2);
mv.visitMaxs(maxStack, 4);
mv.visitEnd();
}
Example 16
| Source File: AsmClassAccess.java From jadira with Apache License 2.0 | 4 votes |
|
private static void enhanceForPutValueObject(ClassVisitor cw, String accessClassNm, String clazzNm, Field[] fields) {
int maxStack = 6;
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "putValue", "(Ljava/lang/Object;Ljava/lang/String;Ljava/lang/Object;)V", null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, accessClassNm, "fieldNames", "[Ljava/lang/String;");
mv.visitVarInsn(ALOAD, 2);
mv.visitMethodInsn(INVOKESTATIC, "java/util/Arrays", "binarySearch", "([Ljava/lang/Object;Ljava/lang/Object;)I");
mv.visitVarInsn(ISTORE, 4);
mv.visitVarInsn(ILOAD, 4);
if (fields.length > 0) {
maxStack = 5;
Label[] labels = constructLabels(fields);
Label defaultLabel = new Label();
mv.visitTableSwitchInsn(0, labels.length - 1, defaultLabel, labels);
for (int i = 0, n = labels.length; i < n; i++) {
Field field = fields[i];
mv.visitLabel(labels[i]);
mv.visitFrame(F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 1);
mv.visitTypeInsn(CHECKCAST, clazzNm);
mv.visitVarInsn(ALOAD, 3);
Type fieldType = Type.getType(field.getType());
switch (fieldType.getSort()) {
case Type.BOOLEAN:
mv.visitTypeInsn(CHECKCAST, "java/lang/Boolean");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Boolean", "booleanValue", "()Z");
break;
case Type.BYTE:
mv.visitTypeInsn(CHECKCAST, "java/lang/Byte");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Byte", "byteValue", "()B");
break;
case Type.CHAR:
mv.visitTypeInsn(CHECKCAST, "java/lang/Character");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Character", "charValue", "()C");
break;
case Type.SHORT:
mv.visitTypeInsn(CHECKCAST, "java/lang/Short");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Short", "shortValue", "()S");
break;
case Type.INT:
mv.visitTypeInsn(CHECKCAST, "java/lang/Integer");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Integer", "intValue", "()I");
break;
case Type.FLOAT:
mv.visitTypeInsn(CHECKCAST, "java/lang/Float");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Float", "floatValue", "()F");
break;
case Type.LONG:
mv.visitTypeInsn(CHECKCAST, "java/lang/Long");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Long", "longValue", "()J");
break;
case Type.DOUBLE:
mv.visitTypeInsn(CHECKCAST, "java/lang/Double");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Double", "doubleValue", "()D");
break;
case Type.ARRAY:
mv.visitTypeInsn(CHECKCAST, fieldType.getDescriptor());
break;
case Type.OBJECT:
mv.visitTypeInsn(CHECKCAST, fieldType.getInternalName());
break;
}
mv.visitFieldInsn(PUTFIELD, clazzNm, field.getName(), fieldType.getDescriptor());
mv.visitInsn(RETURN);
}
mv.visitLabel(defaultLabel);
mv.visitFrame(F_SAME, 0, null, 0, null);
} else {
maxStack = 6;
}
enhanceForThrowingException(mv, IllegalArgumentException.class, "Field was not found", "Ljava/lang/Object;", ALOAD, 2);
mv.visitMaxs(maxStack, 5);
mv.visitEnd();
}
Example 17
| Source File: AsmClassAccess.java From jadira with Apache License 2.0 | 4 votes |
|
private static void enhanceForGetValueObject(ClassVisitor cw, String accessClassNm, String clazzNm, Field[] fields) {
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "getValue", "(Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/Object;", null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, accessClassNm, "fieldNames", "[Ljava/lang/String;");
mv.visitVarInsn(ALOAD, 2);
mv.visitMethodInsn(INVOKESTATIC, "java/util/Arrays", "binarySearch", "([Ljava/lang/Object;Ljava/lang/Object;)I");
mv.visitVarInsn(ISTORE, 3);
mv.visitVarInsn(ILOAD, 3);
final int maxStack;
if (fields.length > 0) {
maxStack = 5;
Label[] labels = constructLabels(fields);
Label defaultLabel = new Label();
mv.visitTableSwitchInsn(0, labels.length - 1, defaultLabel, labels);
for (int i = 0, n = labels.length; i < n; i++) {
Field field = fields[i];
mv.visitLabel(labels[i]);
mv.visitFrame(F_SAME, 0, null, 0, null);
mv.visitVarInsn(ALOAD, 1);
mv.visitTypeInsn(CHECKCAST, clazzNm);
mv.visitFieldInsn(GETFIELD, clazzNm, field.getName(), Type.getDescriptor(field.getType()));
Type fieldType = Type.getType(field.getType());
switch (fieldType.getSort()) {
case Type.BOOLEAN:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Boolean", "valueOf", "(Z)Ljava/lang/Boolean;");
break;
case Type.BYTE:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Byte", "valueOf", "(B)Ljava/lang/Byte;");
break;
case Type.CHAR:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Character", "valueOf", "(C)Ljava/lang/Character;");
break;
case Type.SHORT:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Short", "valueOf", "(S)Ljava/lang/Short;");
break;
case Type.INT:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "valueOf", "(I)Ljava/lang/Integer;");
break;
case Type.FLOAT:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Float", "valueOf", "(F)Ljava/lang/Float;");
break;
case Type.LONG:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Long", "valueOf", "(J)Ljava/lang/Long;");
break;
case Type.DOUBLE:
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Double", "valueOf", "(D)Ljava/lang/Double;");
break;
}
mv.visitInsn(ARETURN);
}
mv.visitLabel(defaultLabel);
mv.visitFrame(F_SAME, 0, null, 0, null);
} else {
maxStack = 6;
}
enhanceForThrowingException(mv, IllegalArgumentException.class, "Field was not found", "Ljava/lang/Object;", ALOAD, 2);
mv.visitMaxs(maxStack, 4);
mv.visitEnd();
}
Example 18
| Source File: TableSwitch.java From OSRS-Deobfuscator with BSD 2-Clause "Simplified" License | 4 votes |
|
@Override
public void accept(MethodVisitor visitor)
{
visitor.visitTableSwitchInsn(low, high, defi.getLabel(),
branchi.stream().map(l -> l.getLabel()).toArray(org.objectweb.asm.Label[]::new));
}
