macro_rules! from {
(
$other_type:expr,
link_type: $link_type:expr,
validation_package: || $package_creator:expr,
validation: | $validation_data:ident : hdk::LinkValidationData | $link_validation:expr
) => { ... };
}
The from
macro is a helper for creating ValidatingEntryType
definitions
for use within the entry macro.
It is a convenience wrapper around link! that has all the
same properties except for the direction which gets set to LinkDirection::From
.