Method Compute

tensorflow/core/kernels/variable_ops.cc:165–174

      : OpKernel(context) {}

  void Compute(OpKernelContext* context) override {
    // Get a mutable input tensor of the Ref input.
    const Tensor& input_tensor = context->mutable_input(0, false);
    Tensor* output = nullptr;
    OP_REQUIRES_OK(context,
                   context->allocate_output(0, TensorShape({}), &output));
    auto output_tensor = output->tensor<bool, 0>();
    bool result = input_tensor.IsInitialized();
    output_tensor() = result;
  }
};

REGISTER_KERNEL_BUILDER(Name("Variable").Device(DEVICE_CPU), VariableOp);