Signature
Description
Updates the policy ID assigned to policyScope. Takes effect immediately for the next operation that consults this slot. Emits PolicyUpdated.
Parameters
Reverts
AccessControlUnauthorizedAccount when the caller does not hold DEFAULT_ADMIN_ROLE.UnsupportedPolicyType when policyScope is not recognized by this token.PolicyNotFound when newPolicyId is not a built-in sentinel and does not exist in the registry.
Access control
DEFAULT_ADMIN_ROLE gates this call. Factory initCalls bypass the role gate during creation.
Policy interaction
Reads or writes a token policy-scope pointer into the PolicyRegistry. The newPolicyId may reference a simple policy (ALLOWLIST or BLOCKLIST) or a composite policy (UNION or INTERSECT). B20 treats the value as an opaque uint64 and delegates all authorization logic to the PolicyRegistry.
Before storing a composite policy ID, call policyExists(policyId) on the PolicyRegistry. An invalid INTERSECT ID with no children returns true for every account, behaving like ALWAYS_ALLOW.
Example
