tasm_lib/verifier/vm_proof_iter/
shared.rs

1use crate::data_type::DataType;
2use crate::data_type::StructType;
3
4pub fn vm_proof_iter_type() -> StructType {
5    let name = "VmProofIter".to_string();
6    let current_item_pointer = ("current_item_pointer".to_string(), DataType::Bfe);
7    let current_item_count = ("current_item_count".to_string(), DataType::U32);
8    let total_item_count = ("total_item_count".to_string(), DataType::U32);
9    let proof_start_pointer = ("proof_start_pointer".to_string(), DataType::Bfe);
10    let proof_length = ("proof_length".to_string(), DataType::U32);
11
12    let fields = vec![
13        current_item_count,
14        total_item_count,
15        proof_start_pointer,
16        proof_length,
17        current_item_pointer,
18    ];
19
20    StructType { name, fields }
21}
22
23#[cfg(test)]
24pub(super) mod vm_proof_iter_struct {
25    use triton_vm::prelude::*;
26    use triton_vm::proof::Proof;
27    use triton_vm::proof_stream::ProofStream;
28
29    use crate::prelude::TasmObject;
30
31    /// Represent Triton VM's knowledge about a proof.
32    #[derive(Debug, Clone, Copy, Eq, PartialEq, BFieldCodec, TasmObject)]
33    pub(crate) struct VmProofIter {
34        pub(crate) current_item_count: u32,
35        pub(crate) total_item_count: u32,
36        pub(crate) proof_start_pointer: BFieldElement,
37        pub(crate) proof_length: u32,
38        pub(crate) current_item_pointer: BFieldElement,
39    }
40
41    impl VmProofIter {
42        pub(crate) fn new(proof_pointer: BFieldElement, proof: &Proof) -> Self {
43            let proof_length = proof.0.len() + 1;
44            let proof_stream: ProofStream = proof.try_into().unwrap();
45            VmProofIter {
46                current_item_count: 0,
47                total_item_count: proof_stream.items.len().try_into().unwrap(),
48                proof_start_pointer: proof_pointer,
49                proof_length: proof_length.try_into().unwrap(),
50
51                // uses highly specific knowledge of `BFieldCodec`
52                current_item_pointer: proof_pointer + bfe!(4),
53            }
54        }
55    }
56}
tasm_lib/verifier/vm_proof_iter/shared.rs

tasm_lib/verifier/vm_proof_iter/
shared.rs
