1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
use tetsy_trie_db::TrieFactory;
use vaptrie::Layout;
use account_db::Factory as AccountFactory;
use vvm::{Factory as VvmFactory};
use tetsy_vm::{Exec, ActionParams, VersionedSchedule, Schedule};
use vapcore_wasm::WasmInterpreter;
const WASM_MAGIC_NUMBER: &'static [u8; 4] = b"\0asm";
#[derive(Default, Clone)]
pub struct VmFactory {
vvm: VvmFactory,
}
impl VmFactory {
pub fn create(&self, params: ActionParams, schedule: &Schedule, depth: usize) -> Option<Box<dyn Exec>> {
if params.code_version.is_zero() {
Some(if schedule.wasm.is_some() && schedule.versions.is_empty() && params.code.as_ref().map_or(false, |code| code.len() > 4 && &code[0..4] == WASM_MAGIC_NUMBER) {
Box::new(WasmInterpreter::new(params))
} else {
self.vvm.create(params, schedule, depth)
})
} else {
let version_config = schedule.versions.get(¶ms.code_version);
match version_config {
Some(VersionedSchedule::TWasm) => {
Some(Box::new(WasmInterpreter::new(params)))
},
None => None,
}
}
}
pub fn new(cache_size: usize) -> Self {
VmFactory { vvm: VvmFactory::new(cache_size) }
}
}
impl From<VvmFactory> for VmFactory {
fn from(vvm: VvmFactory) -> Self {
VmFactory { vvm }
}
}
#[derive(Default, Clone)]
pub struct Factories {
pub vm: VmFactory,
pub trie: TrieFactory<Layout>,
pub accountdb: AccountFactory,
}