コード例 #1
0
    public void addSetMethod(MetaBeanProperty property) throws Exception {
      MetaMethod setter = property.getSetter();
      Type paramType = Type.getType(setter.getParameterTypes()[0].getTheClass());
      Type returnType = Type.getType(setter.getReturnType());
      String setterDescriptor = Type.getMethodDescriptor(returnType, new Type[] {paramType});

      // GENERATE public void <propName>(<type> v) { <setter>(v) }
      String setMethodDescriptor = Type.getMethodDescriptor(Type.VOID_TYPE, new Type[] {paramType});
      MethodVisitor methodVisitor =
          visitor.visitMethod(
              Opcodes.ACC_PUBLIC, property.getName(), setMethodDescriptor, null, new String[0]);
      methodVisitor.visitCode();

      // GENERATE <setter>(v)

      methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
      methodVisitor.visitVarInsn(paramType.getOpcode(Opcodes.ILOAD), 1);

      methodVisitor.visitMethodInsn(
          Opcodes.INVOKEVIRTUAL,
          generatedType.getInternalName(),
          setter.getName(),
          setterDescriptor);

      // END

      methodVisitor.visitInsn(Opcodes.RETURN);
      methodVisitor.visitMaxs(0, 0);
      methodVisitor.visitEnd();
    }
コード例 #2
0
    public void addSetter(MetaBeanProperty property) throws Exception {
      MetaMethod setter = property.getSetter();

      // GENERATE public <return-type> <setter>(<type> v) { <return-type> v = super.<setter>(v);
      // <prop>Set = true; return v; }

      Type paramType = Type.getType(setter.getParameterTypes()[0].getTheClass());
      Type returnType = Type.getType(setter.getReturnType());
      String setterDescriptor = Type.getMethodDescriptor(returnType, new Type[] {paramType});
      MethodVisitor methodVisitor =
          visitor.visitMethod(
              Opcodes.ACC_PUBLIC, setter.getName(), setterDescriptor, null, new String[0]);
      methodVisitor.visitCode();

      // GENERATE super.<setter>(v)

      methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
      methodVisitor.visitVarInsn(paramType.getOpcode(Opcodes.ILOAD), 1);

      methodVisitor.visitMethodInsn(
          Opcodes.INVOKESPECIAL,
          superclassType.getInternalName(),
          setter.getName(),
          setterDescriptor);

      // END

      // GENERATE <prop>Set = true

      methodVisitor.visitVarInsn(Opcodes.ALOAD, 0);
      methodVisitor.visitLdcInsn(true);
      methodVisitor.visitFieldInsn(
          Opcodes.PUTFIELD,
          generatedType.getInternalName(),
          String.format("%sSet", property.getName()),
          Type.BOOLEAN_TYPE.getDescriptor());

      // END

      methodVisitor.visitInsn(returnType.getOpcode(Opcodes.IRETURN));
      methodVisitor.visitMaxs(0, 0);
      methodVisitor.visitEnd();
    }