Java Code Examples for org.objectweb.asm.MethodVisitor#visitLdcInsn()
The following examples show how to use
org.objectweb.asm.MethodVisitor#visitLdcInsn() .
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Example 1
| Source File: TypeConstantAdjustmentTest.java From byte-buddy with Apache License 2.0 | 6 votes |
|
@Test
public void testInstrumentationLegacyClassOtherType() throws Exception {
ClassVisitor classVisitor = TypeConstantAdjustment.INSTANCE.wrap(mock(TypeDescription.class),
this.classVisitor,
mock(Implementation.Context.class),
mock(TypePool.class),
new FieldList.Empty<FieldDescription.InDefinedShape>(),
new MethodList.Empty<MethodDescription>(),
IGNORED,
IGNORED);
classVisitor.visit(ClassFileVersion.JAVA_V4.getMinorMajorVersion(), FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
MethodVisitor methodVisitor = classVisitor.visitMethod(FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
assertThat(methodVisitor, not(this.methodVisitor));
methodVisitor.visitLdcInsn(FOO);
verify(this.classVisitor).visit(ClassFileVersion.JAVA_V4.getMinorMajorVersion(), FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
verify(this.classVisitor).visitMethod(FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
verifyNoMoreInteractions(this.classVisitor);
verify(this.methodVisitor).visitLdcInsn(FOO);
verifyNoMoreInteractions(this.methodVisitor);
}
Example 2
| Source File: Globalizer.java From Concurnas with MIT License | 6 votes |
|
private static void addstaticFinalVars(MethodVisitor mv, ArrayList<FieldVisitorHolder> staticFinalVars, String putTo) {
for(FieldVisitorHolder sfv : staticFinalVars) {
mv.visitLabel(new Label());
mv.visitVarInsn(ALOAD, 0);
switch(sfv.desc) {
case "Ljava/lang/String;": mv.visitLdcInsn(sfv.value.toString()); break;
case "J": BytecodeGenUtils.longOpcode(mv, ((Long)sfv.value).longValue() ); break;
case "F": BytecodeGenUtils.floatOpcode(mv, ((Float)sfv.value).floatValue() ); break;
case "D": BytecodeGenUtils.doubleOpcode(mv, ((Double)sfv.value).doubleValue() ); break;
default: BytecodeGenUtils.intOpcode(mv, ((Integer)sfv.value).intValue() );
}
mv.visitFieldInsn(PUTFIELD, putTo, sfv.name, sfv.desc);
}
}
Example 3
| Source File: AdviceGenerator.java From glowroot with Apache License 2.0 | 6 votes |
|
private void addCodeForSetTransactionX(MethodVisitor mv, String templateGetterName,
String threadContextSetterName) {
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 4);
// methodMetaInternalName is non-null when transactionNameTemplate or
// transactionUserTemplate are non-empty
checkNotNull(methodMetaInternalName);
mv.visitMethodInsn(INVOKEVIRTUAL, methodMetaInternalName, templateGetterName,
"()Lorg/glowroot/agent/bytecode/api/MessageTemplate;", false);
mv.visitVarInsn(ALOAD, 1);
mv.visitVarInsn(ALOAD, 2);
mv.visitVarInsn(ALOAD, 3);
mv.visitMethodInsn(INVOKESTATIC, "org/glowroot/agent/bytecode/api/Bytecode",
"getMessageText",
"(Lorg/glowroot/agent/bytecode/api/MessageTemplate;Ljava/lang/Object;"
+ "Ljava/lang/String;[Ljava/lang/Object;)"
+ "Ljava/lang/String;",
false);
mv.visitLdcInsn(priorityForSetters);
mv.visitMethodInsn(INVOKEINTERFACE, "org/glowroot/agent/plugin/api/ThreadContext",
threadContextSetterName, "(Ljava/lang/String;I)V", true);
}
Example 4
| Source File: TileEntityRegistry.java From customstuff4 with GNU General Public License v3.0 | 6 votes |
|
private static byte[] generateClass(Class<? extends TileEntity> baseClass, String className, String contentId)
{
ClassWriter cw = new ClassWriter(0);
cw.visit(V1_7, ACC_PUBLIC + ACC_SUPER, className, null, Type.getInternalName(baseClass), null);
// Constructor
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
mv.visitVarInsn(ALOAD, 0);
mv.visitLdcInsn(contentId);
mv.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(baseClass), "<init>", "(Ljava/lang/String;)V", false);
mv.visitInsn(RETURN);
mv.visitMaxs(2, 1);
mv.visitEnd();
return cw.toByteArray();
}
Example 5
| Source File: WriterHelper.java From sumk with Apache License 2.0 | 6 votes |
|
public static void visitInt(MethodVisitor mv, int num) {
if (num == -1) {
mv.visitInsn(ICONST_M1);
return;
}
if (num >= 0 && num <= 5) {
mv.visitInsn(ICONST_0 + num);
return;
}
if (num <= Byte.MAX_VALUE && num >= Byte.MIN_VALUE) {
mv.visitIntInsn(BIPUSH, num);
return;
}
if (num <= Short.MAX_VALUE && num >= Short.MIN_VALUE) {
mv.visitIntInsn(SIPUSH, num);
return;
}
mv.visitLdcInsn(num);
}
Example 6
| Source File: CodeEmitter.java From yql-plus with Apache License 2.0 | 5 votes |
|
public void emitStringSwitch(Map<String, Label> labels, Label defaultCase, boolean caseInsensitive) {
MethodVisitor mv = getMethodVisitor();
if (caseInsensitive) {
mv.visitFieldInsn(GETSTATIC, "java/util/Locale", "ENGLISH", "Ljava/util/Locale;");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "toUpperCase", "(Ljava/util/Locale;)Ljava/lang/String;", false);
}
mv.visitInsn(DUP);
AssignableValue tmp = allocate(String.class);
tmp.write(BaseTypeAdapter.STRING).generate(this);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "hashCode", "()I", false);
Multimap<Integer, SwitchLabel> keys = ArrayListMultimap.create();
for (Map.Entry<String, Label> e : labels.entrySet()) {
String name = e.getKey();
if (caseInsensitive) {
name = name.toUpperCase(Locale.ENGLISH);
}
keys.put(name.hashCode(), new SwitchLabel(name, e.getValue()));
}
List<Integer> codes = Lists.newArrayList(keys.keySet());
Collections.sort(codes);
int[] k = new int[codes.size()];
Label[] kl = new Label[codes.size()];
for (int i = 0; i < k.length; ++i) {
k[i] = codes.get(i);
kl[i] = new Label();
}
mv.visitLookupSwitchInsn(defaultCase, k, kl);
for (int i = 0; i < k.length; ++i) {
mv.visitLabel(kl[i]);
for (SwitchLabel switchLabel : keys.get(k[i])) {
mv.visitLdcInsn(switchLabel.name);
tmp.read().generate(this);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "equals", "(Ljava/lang/Object;)Z", false);
mv.visitJumpInsn(IFNE, switchLabel.label);
}
mv.visitJumpInsn(GOTO, defaultCase);
}
}
Example 7
| Source File: RegisterAutomaticSubscribers.java From patchwork-patcher with GNU Lesser General Public License v3.0 | 5 votes |
|
@Override
public void accept(MethodVisitor method) {
for (Map.Entry<String, EventBusSubscriber> entry : subscribers) {
String baseName = entry.getKey();
EventBusSubscriber subscriber = entry.getValue();
// TODO: Check targetModId
if (!subscriber.isClient() || !subscriber.isServer()) {
if (System.getProperty("patchwork:ignore_sided_annotations", "false").equals("true")) {
Patchwork.LOGGER.warn("Sided @EventBusSubscriber annotations are not supported yet, applying " + subscriber + " from " + baseName + " without sides.");
} else {
Patchwork.LOGGER.error("Sided @EventBusSubscriber annotations are not supported yet, skipping: " + subscriber + " attached to: " + baseName);
continue;
}
}
if (subscriber.getBus() == EventBusSubscriber.Bus.MOD) {
method.visitMethodInsn(Opcodes.INVOKESTATIC, "net/minecraftforge/fml/javafmlmod/FMLJavaModLoadingContext", "get", "()Lnet/minecraftforge/fml/javafmlmod/FMLJavaModLoadingContext;", false);
method.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "net/minecraftforge/fml/javafmlmod/FMLJavaModLoadingContext", "getModEventBus", "()Lnet/minecraftforge/eventbus/api/IEventBus;", false);
} else {
method.visitFieldInsn(Opcodes.GETSTATIC, "net/minecraftforge/common/MinecraftForge", "EVENT_BUS", "Lnet/minecraftforge/eventbus/api/IEventBus;");
}
method.visitLdcInsn(Type.getObjectType(baseName));
method.visitMethodInsn(Opcodes.INVOKEINTERFACE, "net/minecraftforge/eventbus/api/IEventBus", "register", "(Ljava/lang/Object;)V", true);
}
method.visitInsn(Opcodes.RETURN);
method.visitMaxs(2, 0);
method.visitEnd();
}
Example 8
| Source File: BeansAccessBuilder.java From json-smart-v2 with Apache License 2.0 | 5 votes |
|
/**
* add Throws statement with int param 2
*/
private void throwExIntParam(MethodVisitor mv, Class<?> exCls) {
String exSig = Type.getInternalName(exCls);
mv.visitTypeInsn(NEW, exSig);
mv.visitInsn(DUP);
mv.visitLdcInsn("mapping " + this.className + " failed to map field:");
mv.visitVarInsn(ILOAD, 2);
mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "toString", "(I)Ljava/lang/String;");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "concat", "(Ljava/lang/String;)Ljava/lang/String;");
mv.visitMethodInsn(INVOKESPECIAL, exSig, "<init>", "(Ljava/lang/String;)V");
mv.visitInsn(ATHROW);
}
Example 9
| Source File: LdcTransformUnit.java From authlib-agent with MIT License | 5 votes |
|
@Override
public ClassVisitor transform(ClassWriter writer) {
return new LdcClassVisitor(writer) {
@Override
void checked(MethodVisitor mv) {
mv.visitLdcInsn(replacement);
}
};
}
Example 10
| Source File: ConstantExpr.java From maple-ir with GNU General Public License v3.0 | 5 votes |
|
private void packInt(MethodVisitor visitor, int value) {
if (value >= -1 && value <= 5) {
visitor.visitInsn(Opcodes.ICONST_M1 + (value + 1));
} else if (value >= Byte.MIN_VALUE && value <= Byte.MAX_VALUE) {
visitor.visitIntInsn(Opcodes.BIPUSH, value);
} else if (value >= Short.MIN_VALUE && value <= Short.MAX_VALUE) {
visitor.visitIntInsn(Opcodes.SIPUSH, value);
} else {
visitor.visitLdcInsn(value);
}
}
Example 11
| Source File: BytecodeHelper.java From groovy with Apache License 2.0 | 5 votes |
|
/**
* Visits a class literal. If the type of the classnode is a primitive type,
* the generated bytecode will be a GETSTATIC Integer.TYPE.
* If the classnode is not a primitive type, we will generate a LDC instruction.
*/
public static void visitClassLiteral(MethodVisitor mv, ClassNode classNode) {
if (ClassHelper.isPrimitiveType(classNode)) {
mv.visitFieldInsn(
GETSTATIC,
getClassInternalName(ClassHelper.getWrapper(classNode)),
"TYPE",
"Ljava/lang/Class;");
} else {
mv.visitLdcInsn(org.objectweb.asm.Type.getType(getTypeDescription(classNode)));
}
}
Example 12
| Source File: VariableReference.java From bistoury with GNU General Public License v3.0 | 5 votes |
|
@Override
public void generateCode(MethodVisitor mv, CodeFlow cf) {
if (this.name.equals(ROOT)) {
mv.visitVarInsn(ALOAD,1);
}
else {
mv.visitVarInsn(ALOAD, 2);
mv.visitLdcInsn(name);
mv.visitMethodInsn(INVOKEINTERFACE, "org/springframework/expression/EvaluationContext", "lookupVariable", "(Ljava/lang/String;)Ljava/lang/Object;",true);
}
CodeFlow.insertCheckCast(mv,this.exitTypeDescriptor);
cf.pushDescriptor(this.exitTypeDescriptor);
}
Example 13
| Source File: AsmClassGenerator.java From groovy with Apache License 2.0 | 4 votes |
|
@Override
public void visitVariableExpression(final VariableExpression expression) {
final String variableName = expression.getName();
if (expression.isThisExpression()) {
// "this" in static context is Class instance
if (controller.isStaticMethod() || controller.getCompileStack().isInSpecialConstructorCall()
|| (!controller.getCompileStack().isImplicitThis() && controller.isStaticContext())) {
ClassNode thisType = controller.getClassNode();
if (controller.isInGeneratedFunction()) {
do { thisType = thisType.getOuterClass();
} while (ClassHelper.isGeneratedFunction(thisType));
}
classX(thisType).visit(this);
} else {
loadThis(expression);
}
return;
}
if (expression.isSuperExpression()) {
// "super" in static context is Class instance
if (controller.isStaticMethod()) {
ClassNode superType = controller.getClassNode().getSuperClass();
classX(superType).visit(this);
} else {
loadThis(expression);
}
return;
}
BytecodeVariable variable = controller.getCompileStack().getVariable(variableName, false);
if (variable != null) {
controller.getOperandStack().loadOrStoreVariable(variable, expression.isUseReferenceDirectly());
} else if (passingParams && controller.isInScriptBody()) {
MethodVisitor mv = controller.getMethodVisitor();
mv.visitTypeInsn(NEW, "org/codehaus/groovy/runtime/ScriptReference");
mv.visitInsn(DUP);
loadThisOrOwner();
mv.visitLdcInsn(variableName);
mv.visitMethodInsn(INVOKESPECIAL, "org/codehaus/groovy/runtime/ScriptReference", "<init>", "(Lgroovy/lang/Script;Ljava/lang/String;)V", false);
} else {
PropertyExpression pexp = thisPropX(true, variableName);
pexp.getObjectExpression().setSourcePosition(expression);
pexp.getProperty().setSourcePosition(expression);
pexp.visit(this);
}
if (!controller.getCompileStack().isLHS()) {
controller.getAssertionWriter().record(expression);
}
}
Example 14
| Source File: IntegerConstant.java From byte-buddy with Apache License 2.0 | 4 votes |
|
/**
* {@inheritDoc}
*/
public Size apply(MethodVisitor methodVisitor, Implementation.Context implementationContext) {
methodVisitor.visitLdcInsn(value);
return SIZE;
}
Example 15
| Source File: ReactivePanacheMongoEntityEnhancer.java From quarkus with Apache License 2.0 | 4 votes |
|
@Override
protected void injectModel(MethodVisitor mv) {
mv.visitLdcInsn(thisClass);
}
Example 16
| Source File: PushLongConst.java From turin-programming-language with Apache License 2.0 | 4 votes |
|
@Override
public void operate(MethodVisitor mv) {
mv.visitLdcInsn(value);
}
Example 17
| Source File: ProxyChannelFactory.java From JCTools with Apache License 2.0 | 4 votes |
|
private static void implementConstructor(ClassVisitor classVisitor,
Class<? extends ProxyChannelRingBuffer> parentType,
String generatedName,
int primitiveMessageSize,
int referenceMessageSize) {
MethodVisitor methodVisitor = classVisitor.visitMethod(Opcodes.ACC_PUBLIC,
"<init>",
methodDescriptor(void.class,
int.class,
WaitStrategy.class),
null,
null);
methodVisitor.visitCode();
LocalsHelper locals = LocalsHelper.forInstanceMethod();
int localIndexOfCapacity = locals.newLocal(int.class);
int localIndexOfWaitStrategy = locals.newLocal(WaitStrategy.class);
methodVisitor.visitVarInsn(Opcodes.ALOAD, LOCALS_INDEX_THIS);
methodVisitor.visitVarInsn(Opcodes.ILOAD, localIndexOfCapacity);
methodVisitor.visitLdcInsn(primitiveMessageSize);
methodVisitor.visitLdcInsn(referenceMessageSize);
methodVisitor.visitMethodInsn(Opcodes.INVOKESPECIAL,
Type.getInternalName(parentType),
"<init>",
methodDescriptor(void.class,
int.class,
int.class,
int.class),
false);
methodVisitor.visitVarInsn(Opcodes.ALOAD, LOCALS_INDEX_THIS);
methodVisitor.visitVarInsn(Opcodes.ALOAD, localIndexOfWaitStrategy);
methodVisitor.visitFieldInsn(Opcodes.PUTFIELD, generatedName, "waitStrategy", Type.getDescriptor(WaitStrategy.class));
methodVisitor.visitInsn(Opcodes.RETURN);
methodVisitor.visitMaxs(-1, -1);
methodVisitor.visitEnd();
}
Example 18
| Source File: TestEnumForJavacDump.java From AVM with MIT License | 4 votes |
|
public static byte[] generateBytecode() {
ClassWriter classWriter = new ClassWriter(0);
FieldVisitor fieldVisitor;
MethodVisitor methodVisitor;
classWriter.visit(V10, ACC_PUBLIC | ACC_FINAL | ACC_SUPER | ACC_ENUM, PACKAGE_NAME_INTERNAL + "/TestEnumForValues", "Ljava/lang/Enum<L" + PACKAGE_NAME_INTERNAL + "/TestEnumForValues;>;", "java/lang/Enum", null);
{
fieldVisitor = classWriter.visitField(ACC_PUBLIC | ACC_FINAL | ACC_STATIC | ACC_ENUM, "TEST", "L" + PACKAGE_NAME_INTERNAL + "/TestEnumForValues;", null, null);
fieldVisitor.visitEnd();
}
{
fieldVisitor = classWriter.visitField(ACC_PRIVATE | ACC_FINAL | ACC_STATIC | ACC_SYNTHETIC, "$VALUES", "[L" + PACKAGE_NAME_INTERNAL + "/TestEnumForValues;", null, null);
fieldVisitor.visitEnd();
}
{
methodVisitor = classWriter.visitMethod(ACC_PUBLIC | ACC_STATIC, "values", "()[L" + PACKAGE_NAME_INTERNAL + "/TestEnumForValues;", null, null);
methodVisitor.visitCode();
methodVisitor.visitFieldInsn(GETSTATIC, PACKAGE_NAME_INTERNAL + "/TestEnumForValues", "$VALUES", "[L" + PACKAGE_NAME_INTERNAL + "/TestEnumForValues;");
methodVisitor.visitMethodInsn(INVOKEVIRTUAL, "[L" + PACKAGE_NAME_INTERNAL + "/TestEnumForValues;", "clone", "()Ljava/lang/Object;", false);
methodVisitor.visitTypeInsn(CHECKCAST, "[L" + PACKAGE_NAME_INTERNAL + "/TestEnumForValues;");
methodVisitor.visitInsn(ARETURN);
methodVisitor.visitMaxs(1, 0);
methodVisitor.visitEnd();
}
{
methodVisitor = classWriter.visitMethod(ACC_PUBLIC | ACC_STATIC, "valueOf", "(Ljava/lang/String;)L" + PACKAGE_NAME_INTERNAL + "/TestEnumForValues;", null, null);
methodVisitor.visitCode();
methodVisitor.visitLdcInsn(Type.getType("L" + PACKAGE_NAME_INTERNAL + "/TestEnumForValues;"));
methodVisitor.visitVarInsn(ALOAD, 0);
methodVisitor.visitMethodInsn(INVOKESTATIC, "java/lang/Enum", "valueOf", "(Ljava/lang/Class;Ljava/lang/String;)Ljava/lang/Enum;", false);
methodVisitor.visitTypeInsn(CHECKCAST, PACKAGE_NAME_INTERNAL + "/TestEnumForValues");
methodVisitor.visitInsn(ARETURN);
methodVisitor.visitMaxs(2, 1);
methodVisitor.visitEnd();
}
{
methodVisitor = classWriter.visitMethod(ACC_PRIVATE, "<init>", "(Ljava/lang/String;I)V", "()V", null);
methodVisitor.visitCode();
methodVisitor.visitVarInsn(ALOAD, 0);
methodVisitor.visitVarInsn(ALOAD, 1);
methodVisitor.visitVarInsn(ILOAD, 2);
methodVisitor.visitMethodInsn(INVOKESPECIAL, "java/lang/Enum", "<init>", "(Ljava/lang/String;I)V", false);
methodVisitor.visitInsn(RETURN);
methodVisitor.visitMaxs(3, 3);
methodVisitor.visitEnd();
}
{
methodVisitor = classWriter.visitMethod(ACC_STATIC, "<clinit>", "()V", null, null);
methodVisitor.visitCode();
methodVisitor.visitTypeInsn(NEW, PACKAGE_NAME_INTERNAL + "/TestEnumForValues");
methodVisitor.visitInsn(DUP);
methodVisitor.visitLdcInsn("TEST");
methodVisitor.visitInsn(ICONST_0);
methodVisitor.visitMethodInsn(INVOKESPECIAL, PACKAGE_NAME_INTERNAL + "/TestEnumForValues", "<init>", "(Ljava/lang/String;I)V", false);
methodVisitor.visitFieldInsn(PUTSTATIC, PACKAGE_NAME_INTERNAL + "/TestEnumForValues", "TEST", "L" + PACKAGE_NAME_INTERNAL + "/TestEnumForValues;");
methodVisitor.visitInsn(ICONST_1);
methodVisitor.visitTypeInsn(ANEWARRAY, PACKAGE_NAME_INTERNAL + "/TestEnumForValues");
methodVisitor.visitInsn(DUP);
methodVisitor.visitInsn(ICONST_0);
methodVisitor.visitFieldInsn(GETSTATIC, PACKAGE_NAME_INTERNAL + "/TestEnumForValues", "TEST", "L" + PACKAGE_NAME_INTERNAL + "/TestEnumForValues;");
methodVisitor.visitInsn(AASTORE);
methodVisitor.visitFieldInsn(PUTSTATIC, PACKAGE_NAME_INTERNAL + "/TestEnumForValues", "$VALUES", "[L" + PACKAGE_NAME_INTERNAL + "/TestEnumForValues;");
methodVisitor.visitInsn(RETURN);
methodVisitor.visitMaxs(4, 0);
methodVisitor.visitEnd();
}
classWriter.visitEnd();
return classWriter.toByteArray();
}
Example 19
| Source File: AsmTest.java From atlas with Apache License 2.0 | 4 votes |
|
@Test
public void test() throws Throwable {
ClassReader cr = new ClassReader(Config.class.getName());
ClassWriter cw = new ClassWriter(cr, ClassWriter.COMPUTE_MAXS);
ClassVisitor cv = new MethodChangeClassAdapter(cw);
cr.accept(cv, Opcodes.ASM5);
//Add a new method
MethodVisitor mw = cw.visitMethod(ACC_PUBLIC + ACC_STATIC,
"add",
"([Ljava/lang/String;)V",
null,
null);
// pushes the 'out' field (of type PrintStream) of the System class
mw.visitFieldInsn(GETSTATIC,
"java/lang/System",
"out",
"Ljava/io/PrintStream;");
// pushes the "Hello World!" String constant
mw.visitLdcInsn("this is add method print!");
// invokes the 'println' method (defined in the PrintStream class)
mw.visitMethodInsn(INVOKEVIRTUAL,
"java/io/PrintStream",
"println",
"(Ljava/lang/String;)V");
mw.visitInsn(RETURN);
// this code uses a maximum of two stack elements and two local
// variables
mw.visitMaxs(0, 0);
mw.visitEnd();
//Type.getDescriptor(AdviceFlowOuterHolder.class)
FieldVisitor fv = cw.visitField(ACC_PUBLIC + ACC_STATIC + ACC_FINAL,
"age",
Type.INT_TYPE.toString(),
null,
1);
fv.visitEnd();
FieldVisitor fv2 = cw.visitField(ACC_PUBLIC + ACC_STATIC + ACC_FINAL,
"name2",
Type.getDescriptor(String.class),
null,
"name2");
fv2.visitEnd();
ModifyClassVisiter cv2 = new ModifyClassVisiter(Opcodes.ASM5);
cv2.addRemoveField("name");
cr.accept(cv2, Opcodes.ASM5);
FieldVisitor fv3 = cw.visitField(ACC_PUBLIC + ACC_STATIC + ACC_FINAL,
"name",
Type.getDescriptor(String.class),
null,
"name");
fv3.visitEnd();
byte[] code = cw.toByteArray();
File file = new File("Config.class");
System.out.println(file.getAbsolutePath());
FileOutputStream fos = new FileOutputStream(file);
fos.write(code);
fos.close();
}
Example 20
| Source File: ASMConstants.java From The-5zig-Mod with MIT License | 4 votes |
|
public static void addSystemOut(MethodVisitor mv, String message) {
mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
mv.visitLdcInsn(message);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V", false);
}
