Function casper_execution_engine::core::runtime_context::validate_group_membership

pub fn validate_group_membership(
    contract_package: &ContractPackage,
    access: &EntryPointAccess,
    validator: impl Fn(&URef) -> bool
) -> Result<(), Error>

Validates an entry point access with a special validator callback.

If the passed access object is a Groups variant, then this function will return a Error::InvalidContext if there are no groups specified, as such entry point is uncallable. For each URef in every group that this access object refers to, a validator callback is called. If a validator function returns false for any of the URef in the set, an Error::InvalidContext is returned.

Otherwise, if access object is a Public variant, then the entry point is considered callable and an unit value is returned.