Struct PreflightOverview 

pub struct PreflightOverview {

    pub serialized_size: usize,
    pub max_size: usize,
    pub base_fee_lamports: u64,
    pub priority_fee_lamports: u64,
    pub priority_fee_note: Option<String>,
    pub compute_unit_limit: Option<u64>,
    pub fee_payer: String,
    pub fee_payer_balance: Option<u64>,
    pub fee_payer_can_pay: Option<bool>,
    pub instructions: Vec<PreflightIx>,
    pub accounts: Vec<AccountRole>,
    pub compute: Vec<CuUsage>,
    pub actions: Vec<String>,
    pub warnings: Vec<String>,
}

The pre-sign overview block of a crate::SimulationReport.

Fields

serialized_size: usize

Serialized transaction size in bytes (signatures included).

max_size: usize

The network’s hard cap (1232 bytes).

base_fee_lamports: u64

Base fee: 5000 lamports per required signature.

priority_fee_lamports: u64

Priority fee from the ComputeBudget instructions, when a price is set. Computed from the requested compute-unit limit — or a defaulted one, flagged in priority_fee_note.

priority_fee_note: Option<String>

Present when the priority fee had to assume a defaulted CU limit.

compute_unit_limit: Option<u64>

The requested compute-unit limit, when one was set.

fee_payer: String

The fee payer (first required signer).

fee_payer_balance: Option<u64>

The fee payer’s live balance, when it could be fetched.

fee_payer_can_pay: Option<bool>

Whether the balance covers base + priority fees.

instructions: Vec<PreflightIx>

Top-level instructions, decoded and named.

accounts: Vec<AccountRole>

Every account with its signer/writable role (Explorer’s account table).

compute: Vec<CuUsage>

Per-program compute units, from the simulation. Populated after the simulation runs (empty until then).

actions: Vec<String>

Plain-English “what signing this does” lines.

warnings: Vec<String>

Danger flags: authority changes, delegations, closes, reassignments.

Trait Implementations

impl Clone for PreflightOverview

fn clone(&self) -> PreflightOverview

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PreflightOverview

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

Formats the value using the given formatter.

impl Serialize for PreflightOverview

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.