Struct CallSimulationResult 

#[non_exhaustive]
pub struct CallSimulationResult {
    pub status: SimStatus,
    pub gas_used: u64,
    pub token_deltas: HashMap<Address, I256>,
    pub logs: Vec<Log>,
    pub access_list: AccessList,
    pub output: Bytes,
}

Outcome of a simulated call: status, return data, gas used, and the touched access list. #[non_exhaustive] — construct via the simulation APIs and match with a wildcard arm.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

status: SimStatus

Whether the call succeeded, reverted, or halted.

gas_used: u64

Gas consumed by the (successful) call.

token_deltas: HashMap<Address, I256>

Net change in owner’s balance per tracked token, as a signed I256 (post - pre): positive means the call increased the balance, negative means it decreased it. Tokens not seen by the call may be absent or zero.

logs: Vec<Log>

Logs emitted by the call (in emission order).

access_list: AccessList

EIP-2930 access list of all accounts and storage slots touched during simulation. Extracted from the EVM journaled state after execution.

output: Bytes

Raw return data of the call.

Success carries the returned bytes, Revert the revert payload, and Halt an empty slice. This makes a corrected view-call result observable: when a re-run reads a changed slot, the new return value differs here even if both runs succeed.

Trait Implementations

impl Clone for CallSimulationResult

fn clone(&self) -> CallSimulationResult

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CallSimulationResult

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.