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perf(fuzz): share override function lists #16650

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perf(fuzz): share override function lists
figtracer Sep 4, 2026
b4dc0db
test(fuzz): remove override strategy test
figtracer Sep 4, 2026
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6 changes: 6 additions & 0 deletions .changelog/override-strategy-clones.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,6 @@
---
forge: patch
foundry-evm-fuzz: patch
---

Reduced allocation overhead when generating invariant call overrides for contracts with many functions.
9 changes: 8 additions & 1 deletion crates/evm/fuzz/src/strategies/invariants.rs
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Expand Up @@ -16,7 +16,14 @@ pub fn override_call_strat(
dictionary_weight: u32,
payable_value_weight: u32,
) -> impl Strategy<Value = CallDetails> + Send + Sync + 'static {
let contracts = Arc::new(contracts);
// Each generated call owns its function-selection strategy. Share the functions so
// constructing that strategy does not clone the entire target ABI on every call.
let contracts = Arc::new(
contracts
.into_iter()
.map(|(address, functions)| (address, Arc::new(functions)))
.collect::<Vec<_>>(),
);
let contracts_ref = contracts.clone();
proptest::prop_oneof![
80 => proptest::strategy::LazyJust::new(move || *target.read()),
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