yevm_core/
state.rs

1use serde::{Deserialize, Serialize};
2use yevm_misc::buf::Buf;
3
4use crate::{Acc, Head, Int, chain::Fetched, trace::Event};
5
6#[derive(Clone, Debug, Default, PartialEq, Eq, Deserialize, Serialize)]
7pub struct Account {
8    pub value: Int,
9    pub nonce: Int,
10    pub code: (Buf, Int),
11}
12
13pub trait State {
14    fn get(&mut self, acc: &Acc, key: &Int) -> Option<(Int, Int)>;
15    fn put(&mut self, acc: &Acc, key: &Int, val: Int) -> Option<Int>;
16    fn init(&mut self, acc: &Acc, key: &Int, val: Int);
17
18    fn tget(&mut self, acc: &Acc, key: &Int) -> Option<Int>;
19    fn tput(&mut self, acc: Acc, key: Int, val: Int) -> Option<Int>;
20
21    fn inc_nonce(&mut self, acc: &Acc, nonce: Int) -> Int;
22    fn set_value(&mut self, acc: &Acc, value: Int) -> Int;
23    fn set_code(&mut self, acc: &Acc, code: Buf, hash: Int) -> Int;
24    fn set_auth(&mut self, src: &Acc, dst: &Acc);
25
26    fn merge(&mut self, acc: &Acc, chain: Account);
27
28    fn balance(&mut self, acc: &Acc) -> Option<Int>;
29    fn nonce(&mut self, acc: &Acc) -> Option<Int>;
30    fn code(&mut self, acc: &Acc) -> Option<(Buf, Int)>;
31    fn acc(&mut self, acc: &Acc) -> Option<Account>;
32
33    fn is_cold_acc(&self, acc: &Acc) -> bool;
34    fn is_cold_key(&self, acc: &Acc, key: &Int) -> bool;
35
36    fn warm_acc(&mut self, acc: &Acc) -> bool;
37    fn warm_key(&mut self, acc: &Acc, key: &Int) -> bool;
38
39    fn create(&mut self, acc: Acc, info: Account);
40    fn destroy(&mut self, acc: &Acc);
41
42    fn hash(&mut self, number: u64, hash: Int);
43    fn log(&mut self, data: Buf, topics: Vec<Int>);
44
45    fn head(&self, number: u64) -> Option<Head>;
46    fn auth(&self, acc: &Acc) -> Option<Acc>;
47    fn created(&self) -> Vec<Acc>;
48    fn destroyed(&self) -> Vec<Acc>;
49    fn apply(&mut self);
50
51    fn get_depth(&mut self) -> usize {
52        0
53    }
54    fn set_depth(&mut self, _depth: usize) {}
55    fn emit(&mut self, event: Event) -> usize;
56
57    fn save_fetched(&mut self, _fetched: Fetched) {}
58    fn next_fetched(&mut self) -> Option<Fetched> {
59        None
60    }
61    fn prefetched(&mut self, _: Vec<Fetched>) {}
62    fn is_offline(&self) -> bool {
63        false
64    }
65
66    fn reset(&mut self) {}
67
68    /// Take a state checkpoint; returns an opaque ID that can be passed to `revert_to`.
69    fn checkpoint(&mut self) -> usize {
70        0
71    }
72    /// Revert all state mutations since the given checkpoint.
73    fn revert_to(&mut self, _checkpoint: usize) {}
74
75    fn set_chain_id(&mut self, _id: u64) {}
76    fn get_chain_id(&self) -> u64 {
77        0
78    }
79
80    fn is_tracing(&self) -> bool {
81        true
82    }
83}
yevm_core/state.rs

yevm_core/
state.rs
