PolicyGatedSigner

Defined in: src/signer/types.ts:155

A signer that signs an EIP-3009 PaymentIntent iff owner policy approves it, with a first-class, type-visible EnforcementLevel.

E is covariant (it appears only in the readonly enforcement output position), so PolicyGatedSigner<"advisory"> is not assignable to PolicyGatedSigner<NonBypassableEnforcement> — the basis of the type-gate.

Example

import { createLocalPolicyGatedSigner } from "kawasekit/signer";
import { requireNonBypassable } from "kawasekit/signer";

const local = createLocalPolicyGatedSigner({ account, policy, asset, acknowledgeAdvisory: true });
// local: PolicyGatedSigner<"advisory">

// A bounded flow demands non-bypassable enforcement:
// requireNonBypassable(local); // ✗ compile error — "advisory" not assignable

const result = await local.sign(intent);
if (result.ok) {
  // result.signature is a valid EIP-3009 authorization
} else {
  console.warn(`payment refused: ${result.rejection.reason}`);
}