Examples of org.objectweb.asm.CodeVisitor.visitFieldInsn()

org.objectweb.asm.CodeVisitor.visitFieldInsn()
Visits a field instruction. A field instruction is an instruction that loads or stores the value of a field of an object. @param opcode the opcode of the type instruction to be visited. This opcodeis either GETSTATIC, PUTSTATIC, GETFIELD or PUTFIELD. @param owner the internal name of the field's owner class (see {@link Type#getInternalName() getInternalName}). @param name the field's name. @param desc the field's descriptor (see {@link Type Type}).

      if (!name.equals("<init>") &&
          (access & (ACC_STATIC + ACC_NATIVE + ACC_ABSTRACT)) == 0)
      {
        cv.visitVarInsn(ALOAD, 0);
        cv.visitVarInsn(ALOAD, 0);
        cv.visitFieldInsn(GETFIELD, owner, "_counter", "I");
        cv.visitInsn(ICONST_1);
        cv.visitInsn(IADD);
        cv.visitFieldInsn(PUTFIELD, owner, "_counter", "I");
        return new CounterCodeAdapter(cv);
      }

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        cv.visitVarInsn(ALOAD, 0);
        cv.visitVarInsn(ALOAD, 0);
        cv.visitFieldInsn(GETFIELD, owner, "_counter", "I");
        cv.visitInsn(ICONST_1);
        cv.visitInsn(IADD);
        cv.visitFieldInsn(PUTFIELD, owner, "_counter", "I");
        return new CounterCodeAdapter(cv);
      }
      return cv;
    }
  }

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      // generates getter method
      String gDesc = "()" + desc;
      CodeVisitor gv =
        cv.visitMethod(ACC_PRIVATE, "_get" + name, gDesc, null, null);
      gv.visitFieldInsn(GETSTATIC,
        "java/lang/System", "err", "Ljava/io/PrintStream;");
      gv.visitLdcInsn("_get" + name + " called");
      gv.visitMethodInsn(INVOKEVIRTUAL,
        "java/io/PrintStream", "println", "(Ljava/lang/String;)V");
      gv.visitVarInsn(ALOAD, 0);

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        "java/lang/System", "err", "Ljava/io/PrintStream;");
      gv.visitLdcInsn("_get" + name + " called");
      gv.visitMethodInsn(INVOKEVIRTUAL,
        "java/io/PrintStream", "println", "(Ljava/lang/String;)V");
      gv.visitVarInsn(ALOAD, 0);
      gv.visitFieldInsn(GETFIELD, owner, name, desc);
      gv.visitInsn(t.getOpcode(IRETURN));
      gv.visitMaxs(1 + size, 1);


      // generates setter method
      String sDesc = "(" + desc + ")V";

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      // generates setter method
      String sDesc = "(" + desc + ")V";
      CodeVisitor sv =
        cv.visitMethod(ACC_PRIVATE, "_set" + name, sDesc, null, null);
      sv.visitFieldInsn(GETSTATIC,
        "java/lang/System", "err", "Ljava/io/PrintStream;");
      sv.visitLdcInsn("_set" + name + " called");
      sv.visitMethodInsn(INVOKEVIRTUAL,
        "java/io/PrintStream", "println", "(Ljava/lang/String;)V");
      sv.visitVarInsn(ALOAD, 0);

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      sv.visitLdcInsn("_set" + name + " called");
      sv.visitMethodInsn(INVOKEVIRTUAL,
        "java/io/PrintStream", "println", "(Ljava/lang/String;)V");
      sv.visitVarInsn(ALOAD, 0);
      sv.visitIntInsn(t.getOpcode(ILOAD), 1);
      sv.visitFieldInsn(PUTFIELD, owner, name, desc);
      sv.visitInsn(RETURN);
      sv.visitMaxs(1 + size, 1 + size);
    }
  }

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            mv.visitVarInsn(ALOAD, 0);
            mv.visitTypeInsn(NEW, getJVMClassName(listenclass));
            mv.visitInsn(DUP);
            mv.visitMethodInsn(INVOKESPECIAL, getJVMClassName(listenclass), 
                "<init>", "()V");
            mv.visitFieldInsn(PUTFIELD, gc.xHomeJCN, LISTENER_FIELD, 
              getJVMType(listenclass));
      }          
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
    }

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              listenclass = actualcbn.listenerClassName;
            }
            // CALL THE CALLBACK METHOD INTO THE LISTENER CLASS
            //this.eventListener.myMethod(param1)
                mv.visitVarInsn(ALOAD, 0);
                mv.visitFieldInsn(GETFIELD, gc.xHomeJCN, LISTENER_FIELD, 
                     getJVMType(actualcbn.listenerClassName));
                mv.visitVarInsn(ALOAD, 2);
                mv.visitTypeInsn(CHECKCAST, gc.xJCN);
                mv.visitMethodInsn(INVOKEVIRTUAL, 
                    getJVMClassName(actualcbn.listenerClassName),

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        }
        CodeVisitor mv = cv.visitMethod(ACC_PUBLIC, "fixCe", "()V", null, null);
        // speedoFixCount++;
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(DUP);
        mv.visitFieldInsn(GETFIELD, classToWrite, FIX_FIELD_NAME, "I");
        mv.visitInsn(ICONST_1);
        mv.visitInsn(IADD);
        mv.visitFieldInsn(PUTFIELD, classToWrite, FIX_FIELD_NAME, "I");


        mv.visitInsn(RETURN);

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        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(DUP);
        mv.visitFieldInsn(GETFIELD, classToWrite, FIX_FIELD_NAME, "I");
        mv.visitInsn(ICONST_1);
        mv.visitInsn(IADD);
        mv.visitFieldInsn(PUTFIELD, classToWrite, FIX_FIELD_NAME, "I");


        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
    }

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