tract_core/ops/memory/
force_eval.rs

1use crate::internal::*;
2
3#[derive(Clone, Debug, PartialEq, Eq)]
4pub struct ForceEval {
5    pub slots: Vec<usize>,
6}
7
8impl ForceEval {
9    pub fn new(slots: Vec<usize>) -> ForceEval {
10        ForceEval { slots }
11    }
12}
13
14impl Op for ForceEval {
15    fn name(&self) -> StaticName {
16        "ForceEval".into()
17    }
18
19    fn info(&self) -> TractResult<Vec<String>> {
20        Ok(vec![format!("slots: {:?}", self.slots)])
21    }
22
23    impl_op_same_as!();
24    op_as_typed_op!();
25}
26
27impl EvalOp for ForceEval {
28    fn is_stateless(&self) -> bool {
29        true
30    }
31
32    fn state(
33        &self,
34        _session: &mut SessionState,
35        _node_id: usize,
36    ) -> TractResult<Option<Box<dyn OpState>>> {
37        Ok(None)
38    }
39
40    fn eval(&self, inputs: TVec<TValue>) -> TractResult<TVec<TValue>> {
41        let max_slot_idx = self.slots.iter().copied().max().unwrap_or(0);
42        ensure!(inputs.len() > max_slot_idx, format!("Expected at least {} inputs given the slot indexes that needs to be forced eval: {:?}", max_slot_idx + 1, self.slots));
43        let outputs = inputs
44            .into_iter()
45            .enumerate()
46            .filter_map(|(idx, val)| if !self.slots.contains(&idx) { Some(val) } else { None })
47            .collect::<TVec<_>>();
48        Ok(outputs)
49    }
50}
51
52impl TypedOp for ForceEval {
53    as_op!();
54
55    fn output_facts(&self, inputs: &[&TypedFact]) -> TractResult<TVec<TypedFact>> {
56        let output_facts = inputs
57            .iter()
58            .enumerate()
59            .filter_map(
60                |(idx, fact)| {
61                    if !self.slots.contains(&idx) {
62                        Some((*fact).clone())
63                    } else {
64                        None
65                    }
66                },
67            )
68            .collect::<TVec<_>>();
69        Ok(output_facts)
70    }
71}
tract_core/ops/memory/force_eval.rs

tract_core/ops/memory/
force_eval.rs
