Struct Contract 

pub struct Contract<Request, Response> {
    pub name: &'static str,
    pub mode: &'static str,
    pub id: u64,
    pub request: Limits,
    pub response: Limits,
    /* private fields */
}

A handler’s types and explicit frame settings, without a registry or transport.

Prefer the attribute’s contract = NAME output to a separately maintained declaration. Native schemas do not prove target-specific type-layout parity; the consumer still owns final artifact admission.

Fields

name: &'static str

IC method name.

mode: &'static str

IC mode: query, composite_query, or update.

id: u64

Native frame method identity.

request: Limits

Request limits, including the 11-byte frame header.

response: Limits

Response limits, including the 11-byte frame header.

Implementations

impl<Request, Response> Contract<Request, Response>

pub fn admit_request(&self)

Check frame size, identity and direction before copying the full ingress. Run as a Platform guard; payload validation still occurs during decoding.