Liquidity.Party/tycho-protocol-sdk
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

fix: update get_block_storage_changes to correctly emit previous value (#280)

Browse Source 
Before this commit we were using the latest `ContractSlot` for both previous and new value. This is not correct because if the value changed twice we would have the middle value emitted as "previous". For example if a value was changed like this in a single transaction 1 -> 10 -> 2 we would have `new_value=2` and `previous_values=10` while the previous value was actually 1.

Co-authored-by: zizou <111426680+flopell@users.noreply.github.com>
This commit is contained in:
Zizou
2025-09-25 17:41:07 +02:00
committed by GitHub
parent 486bd0c9e9
commit 12369c3981
3 changed files with 27 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
substreams/Cargo.lock generated
View File

@@ -250,7 +250,7 @@ dependencies = [
"num-bigint", "num-bigint",
"substreams", "substreams",
"substreams-ethereum", "substreams-ethereum",
"tycho-substreams 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)", "tycho-substreams 0.5.0",
] ]
[[package]] [[package]]
@@ -1758,22 +1758,6 @@ dependencies = [
"substreams-ethereum", "substreams-ethereum",
] ]
[[package]]
name = "tycho-substreams"
version = "0.5.0"
dependencies = [
"ethabi 18.0.0",
"hex",
"itertools 0.12.1",
"num-bigint",
"prost 0.11.9",
"rstest",
"serde",
"serde_json",
"substreams",
"substreams-ethereum",
]
[[package]] [[package]]
name = "tycho-substreams" name = "tycho-substreams"
version = "0.5.0" version = "0.5.0"
@@ -1791,6 +1775,22 @@ dependencies = [
"substreams-ethereum", "substreams-ethereum",
] ]
[[package]]
name = "tycho-substreams"
version = "0.5.1"
dependencies = [
"ethabi 18.0.0",
"hex",
"itertools 0.12.1",
"num-bigint",
"prost 0.11.9",
"rstest",
"serde",
"serde_json",
"substreams",
"substreams-ethereum",
]
[[package]] [[package]]
name = "typenum" name = "typenum"
version = "1.17.0" version = "1.17.0"

2
substreams/crates/tycho-substreams/Cargo.toml
View File

@@ -1,6 +1,6 @@
[package] [package]
name = "tycho-substreams" name = "tycho-substreams"
version = "0.5.0" version = "0.5.1"
edition = "2021" edition = "2021"
description = "Tycho substreams development kit, contains tycho-indexer block changes model and helper functions for common indexing tasks." description = "Tycho substreams development kit, contains tycho-indexer block changes model and helper functions for common indexing tasks."
repository = "https://github.com/propeller-heads/tycho-protocol-sdk/tree/main/substreams/crates/tycho-substreams" repository = "https://github.com/propeller-heads/tycho-protocol-sdk/tree/main/substreams/crates/tycho-substreams"

14
substreams/crates/tycho-substreams/src/block_storage.rs
View File

@@ -54,14 +54,18 @@ pub fn get_block_storage_changes(block: &eth::v2::Block) -> Vec<TransactionStora
// Collect latest change per slot // Collect latest change per slot
let mut latest_changes: HashMap<Vec<u8>, ContractSlot> = HashMap::new(); let mut latest_changes: HashMap<Vec<u8>, ContractSlot> = HashMap::new();
for change in changes { for change in changes {
latest_changes.insert( latest_changes
change.key.clone(), .entry(change.key.clone())
ContractSlot { .and_modify(|slot| {
// Only update the latest value, previous value stays the first seen
// one.
slot.value = change.new_value.clone();
})
.or_insert(ContractSlot {
slot: change.key, slot: change.key,
value: change.new_value, value: change.new_value,
previous_value: change.old_value, previous_value: change.old_value,
}, });
);
} }
StorageChanges { address, slots: latest_changes.into_values().collect() } StorageChanges { address, slots: latest_changes.into_values().collect() }