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

org.objectweb.asm.MethodVisitor.visitInsn()
Visits a zero operand instruction. @param opcode the opcode of the instruction to be visited. This opcode iseither NOP, ACONST_NULL, ICONST_M1, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, LCONST_0, LCONST_1, FCONST_0, FCONST_1, FCONST_2, DCONST_0, DCONST_1, IALOAD, LALOAD, FALOAD, DALOAD, AALOAD, BALOAD, CALOAD, SALOAD, IASTORE, LASTORE, FASTORE, DASTORE, AASTORE, BASTORE, CASTORE, SASTORE, POP, POP2, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, SWAP, IADD, LADD, FADD, DADD, ISUB, LSUB, FSUB, DSUB, IMUL, LMUL, FMUL, DMUL, IDIV, LDIV, FDIV, DDIV, IREM, LREM, FREM, DREM, INEG, LNEG, FNEG, DNEG, ISHL, LSHL, ISHR, LSHR, IUSHR, LUSHR, IAND, LAND, IOR, LOR, IXOR, LXOR, I2L, I2F, I2D, L2I, L2F, L2D, F2I, F2L, F2D, D2I, D2L, D2F, I2B, I2C, I2S, LCMP, FCMPL, FCMPG, DCMPL, DCMPG, IRETURN, LRETURN, FRETURN, DRETURN, ARETURN, RETURN, ARRAYLENGTH, ATHROW, MONITORENTER, or MONITOREXIT.

        "(I)I", tmv);
    mv.visitCode();
    mv.visitVarInsn(ILOAD, 1);
    mv.visitInsn(ICONST_0);
    mv.visitInsn(IADD);
    mv.visitInsn(IRETURN);
    mv.visitMaxs(2, 2);
    mv.visitEnd();
  }


  public void testError() {

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        "(I)LC;", tmv);
    mv.visitCode();
    mv.visitVarInsn(ILOAD, 1);
    mv.visitVarInsn(ISTORE, 1);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitInsn(ARETURN);
    mv.visitMaxs(1, 2);
    try {
      mv.visitEnd();
      fail();
    } catch (RuntimeException e) {

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    if (mv != 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 = cv.visitMethod(ACC_PUBLIC, "m", "()V", null, null);
    if (mv != null) {

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    if (mv != null) {
      mv.visitCode();
      mv.visitLdcInsn(new Long(100));
      mv.visitMethodInsn(INVOKESTATIC, "java/lang/Thread", "sleep",
          "(J)V");
      mv.visitInsn(RETURN);
      mv.visitMaxs(3, 1);
      mv.visitEnd();
    }
    cv.visitEnd();
  }

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      if (!isPresent) {
        MethodVisitor mv = cn.visitMethod(ACC_PUBLIC, "getThis",
            "()Ljava/lang/Object;", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
      }
    }
    super.transform(cn);

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    if (mv != null) {
      mv.visitCode();
      mv.visitVarInsn(ALOAD, 0);
      mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>",
          "()V");
      mv.visitInsn(RETURN);
      mv.visitMaxs(1, 1);
      mv.visitEnd();
    }


    Iterator<Map.Entry<String, Type>> i = fields.entrySet().iterator();

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    if (!isMethodPresent && !isInterface) {
      MethodVisitor mv = cv.visitMethod(ACC_PUBLIC, "getThis",
          "()Ljava/lang/Object;", null, null);
      mv.visitCode();
      mv.visitVarInsn(ALOAD, 0);
      mv.visitInsn(ARETURN);
      mv.visitMaxs(1, 1);
      mv.visitEnd();
    }
    cv.visitEnd();
  }

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    mv = cv.visitMethod(ACC_PUBLIC, "getF", "()I", null, null);
    if (mv != null) {
      mv.visitCode();
      mv.visitVarInsn(ALOAD, 0);
      mv.visitFieldInsn(GETFIELD, "pkg/Bean", "f", "I");
      mv.visitInsn(IRETURN);
      mv.visitMaxs(1, 1);
      mv.visitEnd();
    }
    mv = cv.visitMethod(ACC_PUBLIC, "setF", "(I)V", null, null);
    if (mv != null) {

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    if (mv != null) {
      mv.visitCode();
      mv.visitVarInsn(ALOAD, 0);
      mv.visitVarInsn(ILOAD, 1);
      mv.visitFieldInsn(PUTFIELD, "pkg/Bean", "f", "I");
      mv.visitInsn(RETURN);
      mv.visitMaxs(2, 2);
      mv.visitEnd();
    }
    mv = cv.visitMethod(ACC_PUBLIC, "checkAndSetF", "(I)V", null, null);
    if (mv != null) {

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      Label end = new Label();
      mv.visitJumpInsn(GOTO, end);
      mv.visitLabel(label);
      mv.visitFrame(F_SAME, 0, null, 0, null);
      mv.visitTypeInsn(NEW, "java/lang/IllegalArgumentException");
      mv.visitInsn(DUP);
      mv.visitMethodInsn(INVOKESPECIAL,
          "java/lang/IllegalArgumentException", "<init>", "()V");
      mv.visitInsn(ATHROW);
      mv.visitLabel(end);
      mv.visitFrame(F_SAME, 0, null, 0, null);

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