cairo_vm/vm/trace/
mod.rs

1pub mod trace_entry {
2    use serde::{Deserialize, Serialize};
3
4    use crate::{
5        stdlib::prelude::*,
6        types::relocatable::Relocatable,
7        vm::errors::{memory_errors::MemoryError, trace_errors::TraceError},
8    };
9
10    ///A trace entry for every instruction that was executed.
11    ///Holds the register values before the instruction was executed.
12    ///Register values for ap & fp are represented as their offsets, as their indexes will always be 1
13    #[derive(Debug, PartialEq, Eq, Deserialize, Serialize, Clone)]
14    pub struct TraceEntry {
15        pub pc: Relocatable,
16        pub ap: usize,
17        pub fp: usize,
18    }
19
20    /// A trace entry for every instruction that was executed.
21    /// Holds the register values before the instruction was executed, after going through the relocation process
22    #[derive(Debug, PartialEq, Eq, Deserialize, Serialize, Clone)]
23    pub struct RelocatedTraceEntry {
24        pub pc: usize,
25        pub ap: usize,
26        pub fp: usize,
27    }
28
29    pub fn relocate_trace_register(
30        value: Relocatable,
31        relocation_table: &[usize],
32    ) -> Result<usize, TraceError> {
33        let segment_index: usize = value.segment_index.try_into().map_err(|_| {
34            TraceError::MemoryError(MemoryError::AddressInTemporarySegment(value.segment_index))
35        })?;
36
37        if relocation_table.len() <= segment_index {
38            return Err(TraceError::NoRelocationFound);
39        }
40        Ok(relocation_table[segment_index] + value.offset)
41    }
42}
cairo_vm/vm/trace/mod.rs

cairo_vm/vm/trace/
mod.rs
