Examples with FieldVisitor org.objectweb.asm.FieldVisitor used on opensource projects

Example 26 with FieldVisitor

use of org.objectweb.asm.FieldVisitor in project qi4j-sdk by Qi4j.

the class TransientClassLoader method generateClass.

public static byte[] generateClass(String name, Class baseClass) throws ClassNotFoundException {
    String classSlash = name.replace('.', '/');
    String baseClassSlash = getInternalName(baseClass);
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    FieldVisitor fv;
    MethodVisitor mv;
    AnnotationVisitor av0;
    // Class definition start
    cw.visit(jdkVersion, ACC_PUBLIC + ACC_SUPER, classSlash, null, baseClassSlash, null);
    // Composite reference
    {
        fv = cw.visitField(ACC_PUBLIC, "_instance", "Lorg/qi4j/api/composite/CompositeInvoker;", null, null);
        fv.visitEnd();
    }
    // Static Method references
    {
        int idx = 1;
        for (Method method : baseClass.getMethods()) {
            if (isOverloaded(method, baseClass)) {
                fv = cw.visitField(ACC_PRIVATE + ACC_STATIC, "m" + idx++, "Ljava/lang/reflect/Method;", null, null);
                fv.visitEnd();
            }
        }
    }
    // Constructors
    for (Constructor constructor : baseClass.getDeclaredConstructors()) {
        if (Modifier.isPublic(constructor.getModifiers()) || Modifier.isProtected(constructor.getModifiers())) {
            String desc = org.objectweb.asm.commons.Method.getMethod(constructor).getDescriptor();
            mv = cw.visitMethod(ACC_PUBLIC, "<init>", desc, null, null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            int idx = 1;
            for (Class aClass : constructor.getParameterTypes()) {
                // TODO Handle other types than objects (?)
                mv.visitVarInsn(ALOAD, idx++);
            }
            mv.visitMethodInsn(INVOKESPECIAL, baseClassSlash, "<init>", desc);
            mv.visitInsn(RETURN);
            mv.visitMaxs(idx, idx);
            mv.visitEnd();
        }
    }
    // Overloaded and unimplemented methods
    Method[] methods = baseClass.getMethods();
    int idx = 0;
    List<Label> exceptionLabels = new ArrayList<Label>();
    for (Method method : methods) {
        if (isOverloaded(method, baseClass)) {
            idx++;
            String methodName = method.getName();
            String desc = org.objectweb.asm.commons.Method.getMethod(method).getDescriptor();
            String[] exceptions = null;
            {
                mv = cw.visitMethod(ACC_PUBLIC, methodName, desc, null, exceptions);
                if (isInternalQi4jMethod(method, baseClass)) {
                    // generate a NoOp method...
                    mv.visitInsn(RETURN);
                } else {
                    // Use this if return type is void
                    Label endLabel = null;
                    if (method.getExceptionTypes().length > 0) {
                        exceptions = new String[method.getExceptionTypes().length];
                        for (int i = 0; i < method.getExceptionTypes().length; i++) {
                            Class<?> aClass = method.getExceptionTypes()[i];
                            exceptions[i] = getInternalName(aClass);
                        }
                    }
                    mv.visitCode();
                    Label l0 = new Label();
                    Label l1 = new Label();
                    exceptionLabels.clear();
                    for (Class<?> declaredException : method.getExceptionTypes()) {
                        Label ld = new Label();
                        mv.visitTryCatchBlock(l0, l1, ld, getInternalName(declaredException));
                        // Reuse this further down for the catch
                        exceptionLabels.add(ld);
                    }
                    Label lruntime = new Label();
                    mv.visitTryCatchBlock(l0, l1, lruntime, "java/lang/RuntimeException");
                    Label lerror = new Label();
                    mv.visitTryCatchBlock(l0, l1, lerror, "java/lang/Throwable");
                    mv.visitLabel(l0);
                    mv.visitVarInsn(ALOAD, 0);
                    mv.visitFieldInsn(GETFIELD, classSlash, "_instance", "Lorg/qi4j/api/composite/CompositeInvoker;");
                    mv.visitFieldInsn(GETSTATIC, classSlash, "m" + idx, "Ljava/lang/reflect/Method;");
                    int paramCount = method.getParameterTypes().length;
                    int stackIdx = 0;
                    if (paramCount == 0) {
                        // Send in null as parameter
                        mv.visitInsn(ACONST_NULL);
                    } else {
                        insn(mv, paramCount);
                        mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
                        int pidx = 0;
                        for (Class<?> aClass : method.getParameterTypes()) {
                            mv.visitInsn(DUP);
                            insn(mv, pidx++);
                            stackIdx = wrapParameter(mv, aClass, stackIdx + 1);
                            mv.visitInsn(AASTORE);
                        }
                    }
                    // Call method
                    mv.visitMethodInsn(INVOKEINTERFACE, "org/qi4j/api/composite/CompositeInvoker", "invokeComposite", "(Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;");
                    // Return value
                    if (!method.getReturnType().equals(Void.TYPE)) {
                        unwrapResult(mv, method.getReturnType(), l1);
                    } else {
                        mv.visitInsn(POP);
                        mv.visitLabel(l1);
                        endLabel = new Label();
                        mv.visitJumpInsn(GOTO, endLabel);
                    }
                    // Increase stack to beyond method args
                    stackIdx++;
                    // Declared exceptions
                    int exceptionIdx = 0;
                    for (Class<?> aClass : method.getExceptionTypes()) {
                        mv.visitLabel(exceptionLabels.get(exceptionIdx++));
                        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { getInternalName(aClass) });
                        mv.visitVarInsn(ASTORE, stackIdx);
                        mv.visitVarInsn(ALOAD, stackIdx);
                        mv.visitInsn(ATHROW);
                    }
                    // RuntimeException and Error catch-all
                    mv.visitLabel(lruntime);
                    mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/RuntimeException" });
                    mv.visitVarInsn(ASTORE, stackIdx);
                    mv.visitVarInsn(ALOAD, stackIdx);
                    mv.visitInsn(ATHROW);
                    mv.visitLabel(lerror);
                    mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/Throwable" });
                    mv.visitVarInsn(ASTORE, stackIdx);
                    mv.visitVarInsn(ALOAD, stackIdx);
                    mv.visitTypeInsn(CHECKCAST, "java/lang/Error");
                    mv.visitInsn(ATHROW);
                    // Return type = void
                    if (endLabel != null) {
                        mv.visitLabel(endLabel);
                        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
                        mv.visitInsn(RETURN);
                    }
                    mv.visitMaxs(0, 0);
                    mv.visitEnd();
                }
            }
            if (!Modifier.isAbstract(method.getModifiers())) {
                // Add method with _ as prefix
                mv = cw.visitMethod(ACC_PUBLIC, "_" + method.getName(), desc, null, exceptions);
                mv.visitCode();
                mv.visitVarInsn(ALOAD, 0);
                // Parameters
                int stackIdx = 1;
                for (Class<?> aClass : method.getParameterTypes()) {
                    stackIdx = loadParameter(mv, aClass, stackIdx) + 1;
                }
                // Call method
                mv.visitMethodInsn(INVOKESPECIAL, baseClassSlash, method.getName(), desc);
                // Return value
                if (!method.getReturnType().equals(Void.TYPE)) {
                    returnResult(mv, method.getReturnType());
                } else {
                    mv.visitInsn(RETURN);
                }
                mv.visitMaxs(1, 1);
                mv.visitEnd();
            }
        }
    }
    // Class initializer
    {
        mv = cw.visitMethod(ACC_STATIC, "<clinit>", "()V", null, null);
        mv.visitCode();
        Label l0 = new Label();
        Label l1 = new Label();
        Label l2 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, "java/lang/NoSuchMethodException");
        mv.visitLabel(l0);
        // Lookup methods and store in static variables
        int midx = 0;
        for (Method method : methods) {
            if (isOverloaded(method, baseClass)) {
                method.setAccessible(true);
                Class methodClass;
                methodClass = method.getDeclaringClass();
                midx++;
                mv.visitLdcInsn(Type.getType(methodClass));
                mv.visitLdcInsn(method.getName());
                insn(mv, method.getParameterTypes().length);
                mv.visitTypeInsn(ANEWARRAY, "java/lang/Class");
                int pidx = 0;
                for (Class<?> aClass : method.getParameterTypes()) {
                    mv.visitInsn(DUP);
                    insn(mv, pidx++);
                    type(mv, aClass);
                    mv.visitInsn(AASTORE);
                }
                mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getMethod", "(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;");
                mv.visitFieldInsn(PUTSTATIC, classSlash, "m" + midx, "Ljava/lang/reflect/Method;");
            }
        }
        mv.visitLabel(l1);
        Label l3 = new Label();
        mv.visitJumpInsn(GOTO, l3);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/NoSuchMethodException" });
        mv.visitVarInsn(ASTORE, 0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/NoSuchMethodException", "printStackTrace", "()V");
        mv.visitLabel(l3);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitInsn(RETURN);
        mv.visitMaxs(6, 1);
        mv.visitEnd();
    }
    cw.visitEnd();
    return cw.toByteArray();
}

Example 27 with FieldVisitor

use of org.objectweb.asm.FieldVisitor in project qi4j-sdk by Qi4j.

the class ASMTest method generateClass.

// This is the code generated from the manual stub
private static byte[] generateClass() {
    ClassWriter cw = new ClassWriter(0);
    FieldVisitor fv;
    MethodVisitor mv;
    AnnotationVisitor av0;
    cw.visit(V1_6, ACC_PUBLIC + ACC_SUPER, "org/qi4j/satisfiedBy/SomeMixin_Stub", null, "org/qi4j/satisfiedBy/SomeMixin", null);
    {
        fv = cw.visitField(ACC_PUBLIC, "_instance", "Lorg/qi4j/spi/composite/CompositeInvoker;", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE + ACC_STATIC, "m1", "Ljava/lang/reflect/Method;", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE + ACC_STATIC, "m2", "Ljava/lang/reflect/Method;", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE + ACC_STATIC, "m3", "Ljava/lang/reflect/Method;", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE + ACC_STATIC, "m4", "Ljava/lang/reflect/Method;", null, null);
        fv.visitEnd();
    }
    {
        fv = cw.visitField(ACC_PRIVATE + ACC_STATIC, "m5", "Ljava/lang/reflect/Method;", null, null);
        fv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "org/qi4j/satisfiedBy/SomeMixin", "<init>", "()V");
        mv.visitInsn(RETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(Ljava/lang/String;)V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKESPECIAL, "org/qi4j/satisfiedBy/SomeMixin", "<init>", "(Ljava/lang/String;)V");
        mv.visitInsn(RETURN);
        mv.visitMaxs(2, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "other", "()Ljava/lang/String;", null, null);
        mv.visitCode();
        Label l0 = new Label();
        Label l1 = new Label();
        Label l2 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Throwable");
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "org/qi4j/satisfiedBy/SomeMixin_Stub", "_instance", "Lorg/qi4j/spi/composite/CompositeInvoker;");
        mv.visitFieldInsn(GETSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m1", "Ljava/lang/reflect/Method;");
        mv.visitInsn(ACONST_NULL);
        mv.visitMethodInsn(INVOKEINTERFACE, "org/qi4j/spi/composite/CompositeInvoker", "invokeComposite", "(Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;");
        mv.visitTypeInsn(CHECKCAST, "java/lang/String");
        mv.visitLabel(l1);
        mv.visitInsn(ARETURN);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/Throwable" });
        mv.visitVarInsn(ASTORE, 1);
        mv.visitTypeInsn(NEW, "java/lang/reflect/UndeclaredThrowableException");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/reflect/UndeclaredThrowableException", "<init>", "(Ljava/lang/Throwable;)V");
        mv.visitInsn(ATHROW);
        mv.visitMaxs(3, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "foo", "(Ljava/lang/String;I)Ljava/lang/String;", null, new String[] { "java/lang/IllegalArgumentException" });
        mv.visitCode();
        Label l0 = new Label();
        Label l1 = new Label();
        Label l2 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, "java/lang/IllegalArgumentException");
        Label l3 = new Label();
        mv.visitTryCatchBlock(l0, l1, l3, "java/lang/Throwable");
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "org/qi4j/satisfiedBy/SomeMixin_Stub", "_instance", "Lorg/qi4j/spi/composite/CompositeInvoker;");
        mv.visitFieldInsn(GETSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m2", "Ljava/lang/reflect/Method;");
        mv.visitInsn(ICONST_2);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_1);
        mv.visitVarInsn(ILOAD, 2);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "valueOf", "(I)Ljava/lang/Integer;");
        mv.visitInsn(AASTORE);
        mv.visitMethodInsn(INVOKEINTERFACE, "org/qi4j/spi/composite/CompositeInvoker", "invokeComposite", "(Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;");
        mv.visitTypeInsn(CHECKCAST, "java/lang/String");
        mv.visitLabel(l1);
        mv.visitInsn(ARETURN);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/IllegalArgumentException" });
        mv.visitVarInsn(ASTORE, 3);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitInsn(ATHROW);
        mv.visitLabel(l3);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/Throwable" });
        mv.visitVarInsn(ASTORE, 3);
        mv.visitTypeInsn(NEW, "java/lang/reflect/UndeclaredThrowableException");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 3);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/reflect/UndeclaredThrowableException", "<init>", "(Ljava/lang/Throwable;)V");
        mv.visitInsn(ATHROW);
        mv.visitMaxs(6, 4);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "bar", "(DZFCIJSBLjava/lang/Double;[Ljava/lang/Object;[I)V", null, null);
        mv.visitCode();
        Label l0 = new Label();
        Label l1 = new Label();
        Label l2 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Throwable");
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "org/qi4j/satisfiedBy/SomeMixin_Stub", "_instance", "Lorg/qi4j/spi/composite/CompositeInvoker;");
        mv.visitFieldInsn(GETSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m3", "Ljava/lang/reflect/Method;");
        mv.visitIntInsn(BIPUSH, 11);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_0);
        mv.visitVarInsn(DLOAD, 1);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Double", "valueOf", "(D)Ljava/lang/Double;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_1);
        mv.visitVarInsn(ILOAD, 3);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Boolean", "valueOf", "(Z)Ljava/lang/Boolean;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_2);
        mv.visitVarInsn(FLOAD, 4);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Float", "valueOf", "(F)Ljava/lang/Float;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_3);
        mv.visitVarInsn(ILOAD, 5);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Character", "valueOf", "(C)Ljava/lang/Character;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_4);
        mv.visitVarInsn(ILOAD, 6);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "valueOf", "(I)Ljava/lang/Integer;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_5);
        mv.visitVarInsn(LLOAD, 7);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Long", "valueOf", "(J)Ljava/lang/Long;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 6);
        mv.visitVarInsn(ILOAD, 9);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Short", "valueOf", "(S)Ljava/lang/Short;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 7);
        mv.visitVarInsn(ILOAD, 10);
        mv.visitMethodInsn(INVOKESTATIC, "java/lang/Byte", "valueOf", "(B)Ljava/lang/Byte;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 8);
        mv.visitVarInsn(ALOAD, 11);
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 9);
        mv.visitVarInsn(ALOAD, 12);
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 10);
        mv.visitVarInsn(ALOAD, 13);
        mv.visitInsn(AASTORE);
        mv.visitMethodInsn(INVOKEINTERFACE, "org/qi4j/spi/composite/CompositeInvoker", "invokeComposite", "(Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;");
        mv.visitInsn(POP);
        mv.visitLabel(l1);
        Label l3 = new Label();
        mv.visitJumpInsn(GOTO, l3);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/Throwable" });
        mv.visitVarInsn(ASTORE, 14);
        mv.visitTypeInsn(NEW, "java/lang/reflect/UndeclaredThrowableException");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 14);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/reflect/UndeclaredThrowableException", "<init>", "(Ljava/lang/Throwable;)V");
        mv.visitInsn(ATHROW);
        mv.visitLabel(l3);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitInsn(RETURN);
        mv.visitMaxs(7, 15);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "multiEx", "(Ljava/lang/String;)V", null, new String[] { "org/qi4j/satisfiedBy/Exception1", "org/qi4j/satisfiedBy/Exception2" });
        mv.visitCode();
        Label l0 = new Label();
        Label l1 = new Label();
        Label l2 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, "org/qi4j/satisfiedBy/Exception1");
        Label l3 = new Label();
        mv.visitTryCatchBlock(l0, l1, l3, "org/qi4j/satisfiedBy/Exception2");
        Label l4 = new Label();
        mv.visitTryCatchBlock(l0, l1, l4, "java/lang/Throwable");
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "org/qi4j/satisfiedBy/SomeMixin_Stub", "_instance", "Lorg/qi4j/spi/composite/CompositeInvoker;");
        mv.visitFieldInsn(GETSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m4", "Ljava/lang/reflect/Method;");
        mv.visitInsn(ICONST_1);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_0);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitInsn(AASTORE);
        mv.visitMethodInsn(INVOKEINTERFACE, "org/qi4j/spi/composite/CompositeInvoker", "invokeComposite", "(Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;");
        mv.visitInsn(POP);
        mv.visitLabel(l1);
        Label l5 = new Label();
        mv.visitJumpInsn(GOTO, l5);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "org/qi4j/satisfiedBy/Exception1" });
        mv.visitVarInsn(ASTORE, 2);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitInsn(ATHROW);
        mv.visitLabel(l3);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "org/qi4j/satisfiedBy/Exception2" });
        mv.visitVarInsn(ASTORE, 2);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitInsn(ATHROW);
        mv.visitLabel(l4);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/Throwable" });
        mv.visitVarInsn(ASTORE, 2);
        mv.visitTypeInsn(NEW, "java/lang/reflect/UndeclaredThrowableException");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 2);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/reflect/UndeclaredThrowableException", "<init>", "(Ljava/lang/Throwable;)V");
        mv.visitInsn(ATHROW);
        mv.visitLabel(l5);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitInsn(RETURN);
        mv.visitMaxs(6, 3);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "unwrapResult", "()I", null, null);
        mv.visitCode();
        Label l0 = new Label();
        Label l1 = new Label();
        Label l2 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Throwable");
        mv.visitLabel(l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "org/qi4j/satisfiedBy/SomeMixin_Stub", "_instance", "Lorg/qi4j/spi/composite/CompositeInvoker;");
        mv.visitFieldInsn(GETSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m5", "Ljava/lang/reflect/Method;");
        mv.visitInsn(ACONST_NULL);
        mv.visitMethodInsn(INVOKEINTERFACE, "org/qi4j/spi/composite/CompositeInvoker", "invokeComposite", "(Ljava/lang/reflect/Method;[Ljava/lang/Object;)Ljava/lang/Object;");
        mv.visitTypeInsn(CHECKCAST, "java/lang/Integer");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Integer", "intValue", "()I");
        mv.visitLabel(l1);
        mv.visitInsn(IRETURN);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/Throwable" });
        mv.visitVarInsn(ASTORE, 1);
        mv.visitTypeInsn(NEW, "java/lang/reflect/UndeclaredThrowableException");
        mv.visitInsn(DUP);
        mv.visitVarInsn(ALOAD, 1);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/reflect/UndeclaredThrowableException", "<init>", "(Ljava/lang/Throwable;)V");
        mv.visitInsn(ATHROW);
        mv.visitMaxs(3, 2);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_STATIC, "<clinit>", "()V", null, null);
        mv.visitCode();
        Label l0 = new Label();
        Label l1 = new Label();
        Label l2 = new Label();
        mv.visitTryCatchBlock(l0, l1, l2, "java/lang/NoSuchMethodException");
        mv.visitLabel(l0);
        mv.visitLdcInsn(Type.getType("Lorg/qi4j/satisfiedBy/Other;"));
        mv.visitLdcInsn("other");
        mv.visitInsn(ICONST_0);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/Class");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getMethod", "(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;");
        mv.visitFieldInsn(PUTSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m1", "Ljava/lang/reflect/Method;");
        mv.visitLdcInsn(Type.getType("Lorg/qi4j/satisfiedBy/Other;"));
        mv.visitLdcInsn("foo");
        mv.visitInsn(ICONST_2);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/Class");
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_0);
        mv.visitLdcInsn(Type.getType("Ljava/lang/String;"));
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_1);
        mv.visitFieldInsn(GETSTATIC, "java/lang/Integer", "TYPE", "Ljava/lang/Class;");
        mv.visitInsn(AASTORE);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getMethod", "(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;");
        mv.visitFieldInsn(PUTSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m2", "Ljava/lang/reflect/Method;");
        mv.visitLdcInsn(Type.getType("Lorg/qi4j/satisfiedBy/Other;"));
        mv.visitLdcInsn("bar");
        mv.visitIntInsn(BIPUSH, 11);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/Class");
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_0);
        mv.visitFieldInsn(GETSTATIC, "java/lang/Double", "TYPE", "Ljava/lang/Class;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_1);
        mv.visitFieldInsn(GETSTATIC, "java/lang/Boolean", "TYPE", "Ljava/lang/Class;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_2);
        mv.visitFieldInsn(GETSTATIC, "java/lang/Float", "TYPE", "Ljava/lang/Class;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_3);
        mv.visitFieldInsn(GETSTATIC, "java/lang/Character", "TYPE", "Ljava/lang/Class;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_4);
        mv.visitFieldInsn(GETSTATIC, "java/lang/Integer", "TYPE", "Ljava/lang/Class;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_5);
        mv.visitFieldInsn(GETSTATIC, "java/lang/Long", "TYPE", "Ljava/lang/Class;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 6);
        mv.visitFieldInsn(GETSTATIC, "java/lang/Short", "TYPE", "Ljava/lang/Class;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 7);
        mv.visitFieldInsn(GETSTATIC, "java/lang/Byte", "TYPE", "Ljava/lang/Class;");
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 8);
        mv.visitLdcInsn(Type.getType("Ljava/lang/Double;"));
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 9);
        mv.visitLdcInsn(Type.getType("[Ljava/lang/Object;"));
        mv.visitInsn(AASTORE);
        mv.visitInsn(DUP);
        mv.visitIntInsn(BIPUSH, 10);
        mv.visitLdcInsn(Type.getType("[I"));
        mv.visitInsn(AASTORE);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getMethod", "(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;");
        mv.visitFieldInsn(PUTSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m3", "Ljava/lang/reflect/Method;");
        mv.visitLdcInsn(Type.getType("Lorg/qi4j/satisfiedBy/Other;"));
        mv.visitLdcInsn("multiEx");
        mv.visitInsn(ICONST_1);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/Class");
        mv.visitInsn(DUP);
        mv.visitInsn(ICONST_0);
        mv.visitLdcInsn(Type.getType("Ljava/lang/String;"));
        mv.visitInsn(AASTORE);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getMethod", "(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;");
        mv.visitFieldInsn(PUTSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m4", "Ljava/lang/reflect/Method;");
        mv.visitLdcInsn(Type.getType("Lorg/qi4j/satisfiedBy/Other;"));
        mv.visitLdcInsn("unwrapResult");
        mv.visitInsn(ICONST_0);
        mv.visitTypeInsn(ANEWARRAY, "java/lang/Class");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getMethod", "(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;");
        mv.visitFieldInsn(PUTSTATIC, "org/qi4j/satisfiedBy/SomeMixin_Stub", "m5", "Ljava/lang/reflect/Method;");
        mv.visitLabel(l1);
        Label l3 = new Label();
        mv.visitJumpInsn(GOTO, l3);
        mv.visitLabel(l2);
        mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] { "java/lang/NoSuchMethodException" });
        mv.visitVarInsn(ASTORE, 0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/NoSuchMethodException", "printStackTrace", "()V");
        mv.visitLabel(l3);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitInsn(RETURN);
        mv.visitMaxs(6, 1);
        mv.visitEnd();
    }
    cw.visitEnd();
    return cw.toByteArray();
}

Example 28 with FieldVisitor

use of org.objectweb.asm.FieldVisitor in project LogisticsPipes by RS485.

the class LogisticsWrapperHandler method getWrappedProxy.

@SuppressWarnings("unchecked")
public static <T> T getWrappedProxy(String modId, Class<T> interfaze, Class<? extends T> proxyClazz, T dummyProxy, Class<?>... wrapperInterfaces) throws SecurityException, IllegalArgumentException, IllegalAccessException, InstantiationException, InvocationTargetException, NoSuchMethodException {
    String proxyName = interfaze.getSimpleName().substring(1);
    if (!proxyName.endsWith("Proxy")) {
        throw new RuntimeException("UnuportedProxyName: " + proxyName);
    }
    proxyName = proxyName.substring(0, proxyName.length() - 5);
    String className = "logisticspipes/asm/wrapper/generated/" + proxyName + "ProxyWrapper";
    boolean ignoreModLoaded = false;
    if (modId.startsWith("!")) {
        ignoreModLoaded = true;
        modId = modId.substring(1);
    }
    List<Class<?>> wrapperInterfacesList = Arrays.asList(wrapperInterfaces);
    Class<?> clazz;
    synchronized (lookupMap) {
        clazz = LogisticsWrapperHandler.lookupMap.get(className);
        if (clazz == null) {
            String fieldName = interfaze.getName().replace('.', '/');
            // String classFile = interfaze.getSimpleName().substring(1) + "Wrapper.java";
            ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
            cw.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC + Opcodes.ACC_SUPER, className, null, "logisticspipes/asm/wrapper/AbstractWrapper", new String[] { fieldName });
            cw.visitSource(".LP|ASM.dynamic", null);
            {
                FieldVisitor fv = cw.visitField(Opcodes.ACC_PRIVATE, "proxy", "L" + fieldName + ";", null, null);
                fv.visitEnd();
            }
            {
                FieldVisitor fv = cw.visitField(Opcodes.ACC_PRIVATE + Opcodes.ACC_FINAL, "dummyProxy", "L" + fieldName + ";", null, null);
                fv.visitEnd();
            }
            {
                MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "(L" + fieldName + ";L" + fieldName + ";)V", null, null);
                mv.visitCode();
                Label l0 = new Label();
                mv.visitLabel(l0);
                mv.visitLineNumber(11, l0);
                mv.visitVarInsn(Opcodes.ALOAD, 0);
                mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "logisticspipes/asm/wrapper/AbstractWrapper", "<init>", "()V");
                Label l1 = new Label();
                mv.visitLabel(l1);
                mv.visitLineNumber(12, l1);
                mv.visitVarInsn(Opcodes.ALOAD, 0);
                mv.visitVarInsn(Opcodes.ALOAD, 1);
                mv.visitFieldInsn(Opcodes.PUTFIELD, className, "dummyProxy", "L" + fieldName + ";");
                Label l2 = new Label();
                mv.visitLabel(l2);
                mv.visitLineNumber(13, l2);
                mv.visitVarInsn(Opcodes.ALOAD, 0);
                mv.visitVarInsn(Opcodes.ALOAD, 2);
                mv.visitFieldInsn(Opcodes.PUTFIELD, className, "proxy", "L" + fieldName + ";");
                Label l3 = new Label();
                mv.visitLabel(l3);
                mv.visitLineNumber(14, l3);
                mv.visitInsn(Opcodes.RETURN);
                Label l4 = new Label();
                mv.visitLabel(l4);
                mv.visitLocalVariable("this", "L" + className + ";", null, l0, l4, 0);
                mv.visitLocalVariable("dProxy", "L" + fieldName + ";", null, l0, l4, 1);
                mv.visitLocalVariable("iProxy", "L" + fieldName + ";", null, l0, l4, 2);
                mv.visitMaxs(2, 3);
                mv.visitEnd();
            }
            int lineAddition = 100;
            for (Method method : interfaze.getMethods()) {
                LogisticsWrapperHandler.addProxyMethod(cw, method, fieldName, className, lineAddition, !wrapperInterfacesList.contains(method.getReturnType()));
                lineAddition += 10;
            }
            LogisticsWrapperHandler.addGetName(cw, className, proxyName);
            LogisticsWrapperHandler.addGetTypeName(cw, className, "Proxy");
            cw.visitEnd();
            String lookfor = className.replace('/', '.');
            byte[] bytes = cw.toByteArray();
            if (LogisticsPipes.isDEBUG()) {
                if (LogisticsWrapperHandler.DUMP) {
                    LogisticsWrapperHandler.saveGeneratedClass(bytes, lookfor, "LP_WRAPPER_CLASSES");
                }
                ClassReader cr = new ClassReader(bytes);
                org.objectweb.asm.util.CheckClassAdapter.verify(cr, Launch.classLoader, false, new PrintWriter(System.err));
            }
            try {
                clazz = LogisticsWrapperHandler.loadClass(bytes, lookfor);
            } catch (LinkageError e) {
                try {
                    if (e.getMessage().contains("attempted") && e.getMessage().contains("duplicate class definition")) {
                        Class<?> prev = Class.forName(className);
                        System.err.println(e.getMessage());
                        System.err.printf("Already loaded: %s%n", prev);
                        String resourcePath = className.replace('.', '/').concat(".class");
                        URL classResource = Launch.classLoader.findResource(resourcePath);
                        if (classResource != null) {
                            String path = classResource.getPath();
                            System.err.println("Class source: " + path);
                        } else {
                            System.err.println("Class source: Null");
                        }
                    }
                } catch (Exception e2) {
                    e2.printStackTrace();
                }
                throw e;
            }
            LogisticsWrapperHandler.lookupMap.put(className, clazz);
        }
    }
    T proxy = null;
    Throwable e = null;
    if ((ModStatusHelper.areModsLoaded(modId) || ignoreModLoaded) && proxyClazz != null) {
        try {
            proxy = proxyClazz.newInstance();
        } catch (Exception e1) {
            if (e1 instanceof VersionNotSupportedException) {
                throw (VersionNotSupportedException) e1;
            }
            if (!(e1 instanceof DontLoadProxy)) {
                e1.printStackTrace();
                e = e1;
            }
        } catch (NoClassDefFoundError e1) {
            if (!ignoreModLoaded) {
                e1.printStackTrace();
                e = e1;
            }
        }
    }
    T instance = (T) clazz.getConstructor(new Class<?>[] { interfaze, interfaze }).newInstance(dummyProxy, proxy);
    if (proxy != null) {
        LogisticsPipes.log.info("Loaded " + proxyName + "Proxy");
    } else {
        LogisticsPipes.log.info("Loaded " + proxyName + " DummyProxy");
        if (e != null) {
            ((AbstractWrapper) instance).setState(WrapperState.Exception);
            ((AbstractWrapper) instance).setReason(e);
        } else {
            ((AbstractWrapper) instance).setState(WrapperState.ModMissing);
        }
    }
    ((AbstractWrapper) instance).setModId(modId);
    ((AbstractWrapper) instance).setWrapperInterfaces(Collections.unmodifiableList(wrapperInterfacesList));
    LogisticsWrapperHandler.wrapperController.add((AbstractWrapper) instance);
    return instance;
}

Example 29 with FieldVisitor

use of org.objectweb.asm.FieldVisitor in project LogisticsPipes by RS485.

the class LogisticsClassTransformer method addAddInfoPart.

private byte[] addAddInfoPart(byte[] bytes, String className) {
    final ClassReader reader = new ClassReader(bytes);
    final ClassNode node = new ClassNode();
    reader.accept(node, 0);
    node.interfaces.add("logisticspipes/asm/addinfo/IAddInfoProvider");
    {
        FieldVisitor fv = node.visitField(Opcodes.ACC_PRIVATE, "logisticsPipesAdditionalInformation", "Ljava/util/ArrayList;", "Ljava/util/ArrayList<Llogisticspipes/asm/addinfo/IAddInfo;>;", null);
        fv.visitEnd();
    }
    MethodVisitor mv;
    {
        mv = node.visitMethod(Opcodes.ACC_PUBLIC, "getLogisticsPipesAddInfo", "(Ljava/lang/Class;)Llogisticspipes/asm/addinfo/IAddInfo;", "<T::Llogisticspipes/asm/addinfo/IAddInfo;>(Ljava/lang/Class<TT;>;)TT;", null);
        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(11, l0);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, className, "logisticsPipesAdditionalInformation", "Ljava/util/ArrayList;");
        Label l1 = new Label();
        mv.visitJumpInsn(Opcodes.IFNONNULL, l1);
        Label l2 = new Label();
        mv.visitLabel(l2);
        mv.visitLineNumber(12, l2);
        mv.visitInsn(Opcodes.ACONST_NULL);
        mv.visitInsn(Opcodes.ARETURN);
        mv.visitLabel(l1);
        mv.visitLineNumber(14, l1);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, className, "logisticsPipesAdditionalInformation", "Ljava/util/ArrayList;");
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/ArrayList", "iterator", "()Ljava/util/Iterator;", false);
        mv.visitVarInsn(Opcodes.ASTORE, 2);
        Label l3 = new Label();
        mv.visitLabel(l3);
        mv.visitFrame(Opcodes.F_APPEND, 1, new Object[] { "java/util/Iterator" }, 0, null);
        mv.visitVarInsn(Opcodes.ALOAD, 2);
        mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Iterator", "hasNext", "()Z", true);
        Label l4 = new Label();
        mv.visitJumpInsn(Opcodes.IFEQ, l4);
        mv.visitVarInsn(Opcodes.ALOAD, 2);
        mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, "java/util/Iterator", "next", "()Ljava/lang/Object;", true);
        mv.visitTypeInsn(Opcodes.CHECKCAST, "logisticspipes/asm/addinfo/IAddInfo");
        mv.visitVarInsn(Opcodes.ASTORE, 3);
        Label l5 = new Label();
        mv.visitLabel(l5);
        mv.visitLineNumber(15, l5);
        mv.visitVarInsn(Opcodes.ALOAD, 3);
        Label l6 = new Label();
        mv.visitJumpInsn(Opcodes.IFNONNULL, l6);
        mv.visitJumpInsn(Opcodes.GOTO, l3);
        mv.visitLabel(l6);
        mv.visitLineNumber(16, l6);
        mv.visitFrame(Opcodes.F_APPEND, 1, new Object[] { "logisticspipes/asm/addinfo/IAddInfo" }, 0, null);
        mv.visitVarInsn(Opcodes.ALOAD, 3);
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Object", "getClass", "()Ljava/lang/Class;", false);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        Label l7 = new Label();
        mv.visitJumpInsn(Opcodes.IF_ACMPNE, l7);
        Label l8 = new Label();
        mv.visitLabel(l8);
        mv.visitLineNumber(17, l8);
        mv.visitVarInsn(Opcodes.ALOAD, 3);
        mv.visitInsn(Opcodes.ARETURN);
        mv.visitLabel(l7);
        mv.visitLineNumber(19, l7);
        mv.visitFrame(Opcodes.F_CHOP, 1, null, 0, null);
        mv.visitJumpInsn(Opcodes.GOTO, l3);
        mv.visitLabel(l4);
        mv.visitLineNumber(20, l4);
        mv.visitFrame(Opcodes.F_CHOP, 1, null, 0, null);
        mv.visitInsn(Opcodes.ACONST_NULL);
        mv.visitInsn(Opcodes.ARETURN);
        Label l9 = new Label();
        mv.visitLabel(l9);
        mv.visitLocalVariable("info", "Llogisticspipes/asm/addinfo/IAddInfo;", null, l5, l7, 3);
        mv.visitLocalVariable("this", "L" + className + ";", null, l0, l9, 0);
        mv.visitLocalVariable("clazz", "Ljava/lang/Class;", "Ljava/lang/Class<TT;>;", l0, l9, 1);
        mv.visitMaxs(2, 4);
        mv.visitEnd();
    }
    {
        mv = node.visitMethod(Opcodes.ACC_PUBLIC, "setLogisticsPipesAddInfo", "(Llogisticspipes/asm/addinfo/IAddInfo;)V", null, null);
        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        mv.visitLineNumber(25, l0);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, className, "logisticsPipesAdditionalInformation", "Ljava/util/ArrayList;");
        Label l1 = new Label();
        mv.visitJumpInsn(Opcodes.IFNONNULL, l1);
        Label l2 = new Label();
        mv.visitLabel(l2);
        mv.visitLineNumber(26, l2);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitTypeInsn(Opcodes.NEW, "java/util/ArrayList");
        mv.visitInsn(Opcodes.DUP);
        mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/util/ArrayList", "<init>", "()V", false);
        mv.visitFieldInsn(Opcodes.PUTFIELD, className, "logisticsPipesAdditionalInformation", "Ljava/util/ArrayList;");
        mv.visitLabel(l1);
        mv.visitLineNumber(28, l1);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitInsn(Opcodes.ICONST_0);
        mv.visitVarInsn(Opcodes.ISTORE, 2);
        Label l3 = new Label();
        mv.visitLabel(l3);
        mv.visitFrame(Opcodes.F_APPEND, 1, new Object[] { Opcodes.INTEGER }, 0, null);
        mv.visitVarInsn(Opcodes.ILOAD, 2);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, className, "logisticsPipesAdditionalInformation", "Ljava/util/ArrayList;");
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/ArrayList", "size", "()I", false);
        Label l4 = new Label();
        mv.visitJumpInsn(Opcodes.IF_ICMPGE, l4);
        Label l5 = new Label();
        mv.visitLabel(l5);
        mv.visitLineNumber(29, l5);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, className, "logisticsPipesAdditionalInformation", "Ljava/util/ArrayList;");
        mv.visitVarInsn(Opcodes.ILOAD, 2);
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/ArrayList", "get", "(I)Ljava/lang/Object;", false);
        Label l6 = new Label();
        mv.visitJumpInsn(Opcodes.IFNONNULL, l6);
        Label l7 = new Label();
        mv.visitJumpInsn(Opcodes.GOTO, l7);
        mv.visitLabel(l6);
        mv.visitLineNumber(30, l6);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, className, "logisticsPipesAdditionalInformation", "Ljava/util/ArrayList;");
        mv.visitVarInsn(Opcodes.ILOAD, 2);
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/ArrayList", "get", "(I)Ljava/lang/Object;", false);
        mv.visitTypeInsn(Opcodes.CHECKCAST, "logisticspipes/asm/addinfo/IAddInfo");
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Object", "getClass", "()Ljava/lang/Class;", false);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Object", "getClass", "()Ljava/lang/Class;", false);
        mv.visitJumpInsn(Opcodes.IF_ACMPNE, l7);
        Label l8 = new Label();
        mv.visitLabel(l8);
        mv.visitLineNumber(31, l8);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, className, "logisticsPipesAdditionalInformation", "Ljava/util/ArrayList;");
        mv.visitVarInsn(Opcodes.ILOAD, 2);
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/ArrayList", "set", "(ILjava/lang/Object;)Ljava/lang/Object;", false);
        mv.visitInsn(Opcodes.POP);
        Label l9 = new Label();
        mv.visitLabel(l9);
        mv.visitLineNumber(32, l9);
        mv.visitInsn(Opcodes.RETURN);
        mv.visitLabel(l7);
        mv.visitLineNumber(28, l7);
        mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
        mv.visitIincInsn(2, 1);
        mv.visitJumpInsn(Opcodes.GOTO, l3);
        mv.visitLabel(l4);
        mv.visitLineNumber(35, l4);
        mv.visitFrame(Opcodes.F_CHOP, 1, null, 0, null);
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, className, "logisticsPipesAdditionalInformation", "Ljava/util/ArrayList;");
        mv.visitVarInsn(Opcodes.ALOAD, 1);
        mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/util/ArrayList", "add", "(Ljava/lang/Object;)Z", false);
        mv.visitInsn(Opcodes.POP);
        Label l10 = new Label();
        mv.visitLabel(l10);
        mv.visitLineNumber(36, l10);
        mv.visitInsn(Opcodes.RETURN);
        Label l11 = new Label();
        mv.visitLabel(l11);
        mv.visitLocalVariable("i", "I", null, l3, l4, 2);
        mv.visitLocalVariable("this", "L" + className + ";", null, l0, l11, 0);
        mv.visitLocalVariable("info", "Llogisticspipes/asm/addinfo/IAddInfo;", null, l0, l11, 1);
        mv.visitMaxs(3, 3);
        mv.visitEnd();
    }
    ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_MAXS);
    node.accept(writer);
    return writer.toByteArray();
}

Example 30 with FieldVisitor

use of org.objectweb.asm.FieldVisitor in project atlas by alibaba.

the class AsmFieldEditor method rewriteBytes.

private static byte[] rewriteBytes(List<Field> fields, ClassReader cr) {
    ClassWriter cw = new ClassWriter(cr, ClassWriter.COMPUTE_MAXS);
    ModifyClassVisiter modifyClassVisiter = new ModifyClassVisiter(Opcodes.ASM5, cw);
    for (Field field : fields) {
        modifyClassVisiter.addRemoveField(field.name);
    }
    cr.accept(modifyClassVisiter, Opcodes.ASM5);
    for (Field field : fields) {
        FieldVisitor fv = cw.visitField(field.flag, field.name, Type.getDescriptor(field.value.getClass()), null, field.value);
        fv.visitEnd();
    }
    return cw.toByteArray();
}