Macro cynic::impl_input_type

macro_rules! impl_input_type {
    ($type : ty, $type_lock : path) => { ... };
}

Defines common InputType impls for a given type & type lock.

The InputType trait is used to allow conversions while enforcing type safety on the various input types (scalars, input objects & enums) when they appear in input position. For example an optional field will have an InputType definition that allows for non Option values to be passed.

These impls can’t be defined generically as there’s a lot of them and we quickly run into clashing impls. This macro defines specific impls for each type, working around this.

Users usually shouldn’t need to call this, as it’s called by other macros.