use tensor_rs::tensor::Tensor;
use super::{OpTrait, OpHandle};

pub struct Det {
    handle: OpHandle,
}
impl Det {
    pub fn new() -> Det {
        Det {
            handle: OpHandle::new(),
        }
    }
    fn get_handle(&self) -> &OpHandle {
        &self.handle
    }
    fn get_handle_mut(&mut self) -> &mut OpHandle {
        &mut self.handle
    }
}
impl OpTrait for Det {
     
    fn get_name(&self) -> String {
        "det".to_string()
    }
    fn get_input_size(&self) -> usize {
        1
    }
    fn get_output_size(&self) -> usize {
        1
    }
    fn apply(&self, input: &[Tensor], output: &[Tensor]) {
        output[0].swap(&input[0].det().expect("det() does not get a result."));
    }
    fn grad(&self, input: &[Tensor], output_grad: &[Tensor], input_grad: &[Tensor]) {
        unimplemented!();
    }
    fn get_values(&self) -> Vec<Tensor> {
        Vec::new()
    }
    fn get_grads(&self) -> Vec<Tensor> {
        Vec::new()
    }
    fn set_values(&self, _v: &[Tensor]) {
    }
}