Package org.objectweb.asm

Examples of org.objectweb.asm.MethodVisitor.visitLabel()

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        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, classDescriptor, fieldName, propClassSignature);
        Label l1 = new Label();
        mv.visitJumpInsn(IFNONNULL, l1);
        Label l2 = new Label();
        mv.visitLabel(l2);
        mv.visitLineNumber(64, l2);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitTypeInsn(NEW, collectionImplClass);
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, collectionImplClass, "<init>", "()V");
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        mv.visitVarInsn(ALOAD, 0);
        mv.visitTypeInsn(NEW, collectionImplClass);
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, collectionImplClass, "<init>", "()V");
        mv.visitFieldInsn(PUTFIELD, classDescriptor, fieldName, propClassSignature);
        mv.visitLabel(l1);
        mv.visitLineNumber(66, l1);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, classDescriptor, fieldName, propClassSignature);
        mv.visitInsn(ARETURN);
        Label l3 = new Label();
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        mv.visitLineNumber(66, l1);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, classDescriptor, fieldName, propClassSignature);
        mv.visitInsn(ARETURN);
        Label l3 = new Label();
        mv.visitLabel(l3);
        mv.visitLocalVariable("this", classSignature, null, l0, l3, 0);
        mv.visitMaxs(3, 1);
        mv.visitEnd();
    }
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    protected void declareConstructor(ClassWriter cw, String classSignature) {
        MethodVisitor mv;
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        Label l0 = new Label();
        mv.visitLabel(l0);
        // mv.visitLineNumber(37, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
        mv.visitInsn(RETURN);
        Label l1 = new Label();
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        // mv.visitLineNumber(37, l0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
        mv.visitInsn(RETURN);
        Label l1 = new Label();
        mv.visitLabel(l1);
        mv.visitLocalVariable("this", classSignature, null, l0, l1, 0);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
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        Label notNull = new Label();
        Label isNull = new Label();
        mv.visitVarInsn(ALOAD, varSvc); // Load the service
        mv.visitJumpInsn(IFNONNULL, notNull); // If not null go to not null
        // Null branch - throw the exception
        mv.visitLabel(isNull);
        mv.visitTypeInsn(NEW, "java/lang/RuntimeException");
        mv.visitInsn(DUP);
        mv.visitLdcInsn("No service available");
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/RuntimeException", "<init>", "(Ljava/lang/String;)V");
        mv.visitInsn(ATHROW);
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        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/RuntimeException", "<init>", "(Ljava/lang/String;)V");
        mv.visitInsn(ATHROW);
        // End of the null branch

        // Not null, go one the execution
        mv.visitLabel(notNull);

        // Invoke the method on the service object.
        mv.visitVarInsn(ALOAD, varSvc);
        // Push argument on the stack.
        int i = 1; // Arguments. (non static method)
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    {
      mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
      mv.visitCode();
      Label l0 = new Label();
      mv.visitLabel(l0);
      mv.visitVarInsn(ALOAD, 0);
      mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
      mv.visitInsn(RETURN);
      Label l1 = new Label();
      mv.visitLabel(l1);
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      mv.visitLabel(l0);
      mv.visitVarInsn(ALOAD, 0);
      mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
      mv.visitInsn(RETURN);
      Label l1 = new Label();
      mv.visitLabel(l1);
      mv.visitMaxs(1, 1);
      mv.visitEnd();
    }

    {
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    {
      mv = cw.visitMethod(ACC_PUBLIC, "eval", "(Lorg/renjin/eval/Context;Lorg/renjin/eval/Environment;)Lorg/renjin/eval/SEXP;", null, null);
      mv.visitCode();
      Label l0 = new Label();
      mv.visitLabel(l0);
      mv.visitVarInsn(ALOAD, 1);
      mv.visitVarInsn(ALOAD, 2);
      Label l1 = new Label();
      mv.visitLabel(l1);
      mv.visitTypeInsn(NEW, "org/renjin/eval/DoubleVector");
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