Trait HasProsaicSchema 

pub trait HasProsaicSchema {
    const PROSAIC_SCHEMA: &'static [(&'static str, ValueType)];
}

Compile-time schema for a context type.

Deriving #[derive(IntoContext)] automatically implements this trait using the field names and Rust types of the struct. Hand-written impls are also supported for types that need ValueType::Entity slots or other mappings the derive does not produce.

The PROSAIC_SCHEMA constant is queryable at const evaluation time, so the prosaic_template! macro can emit per-slot assertions against it using prosaic_common::schema_lookup and prosaic_common::types_compatible.

Required Associated Constants

const PROSAIC_SCHEMA: &'static [(&'static str, ValueType)]

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors