public ByTargetIndex()

in mapper/src/main/java/jetbrains/jetpad/mapper/ByTargetIndex.java [35:61]

• 23 lines of code
• 6 McCabe index (conditional complexity)

  public ByTargetIndex(MappingContext ctx) {
    for (Mapper<?, ?> mapper : ctx.getMappers()) {
      if (mapper.isFindable()) {
        myTargetToMappers.put(mapper.getTarget(), mapper);
      }
    }

    myRegistration = ctx.addListener(new MappingContextListener() {
      @Override
      public void onMapperRegistered(Mapper<?, ?> mapper) {
        if (!mapper.isFindable()) return;

        myTargetToMappers.put(mapper.getTarget(), mapper);
      }

      @Override
      public void onMapperUnregistered(Mapper<?, ?> mapper) {
        if (!mapper.isFindable()) return;

        Object target = mapper.getTarget();
        if (!myTargetToMappers.get(target).contains(mapper)) {
          throw new IllegalStateException("unregistered mapper " + mapper + " with target " + target);
        }
        myTargetToMappers.get(target).remove(mapper);
      }
    });
  }