Method process

test/anyflow/test_processor.cpp:430–433

  };
  struct F3 : public GraphProcessor {
    virtual int process() noexcept override {
      *x.emit() = *a;
      return 0;
    }
    ANYFLOW_INTERFACE(ANYFLOW_DEPEND_DATA(int32_t, a)
                          ANYFLOW_EMIT_DATA(int32_t, x))
  };