[−][src]Crate summon
summon
A logic engine designed to magically give you what you ask for
use summon::{Tome, circle}; #[derive(Clone)] struct ConstantAcceleration(f64); #[derive(Clone)] struct InitialVelocity(f64); #[derive(Clone)] struct InitialPosition(f64); #[derive(Clone)] struct Time(f64); #[derive(Debug)] struct Distance(f64); // The tome is where all the logic and conversions are written in your code. let mut tome = Tome::new(); // You can use ether() to give types as givens. tome.ether(ConstantAcceleration(3.0)); tome.ether(InitialVelocity(5.0)); tome.ether(InitialPosition(6.0)); tome.ether(Time(4.0)); // Inscribe is used to describe a conversion between types. // Several macros are provided for convenience. // This one lets you destructure and type construct freely. tome.inscribe( circle!(ConstantAcceleration(a), InitialVelocity(v), InitialPosition(p), Time(t) => Distance(0.5 * a * t.powi(2) + v * t + p)) ); // So long as it is possible to produce the result with the given inscriptions, it will be produced. let summoned = tome.summon::<Distance>().unwrap().0; assert_eq!( 0.5 * 3.0 * 4.0f64.powi(2) + 5.0 * 4.0 + 6.0, summoned, );
Macros
circle | Use this to inscribe a transmutation between a set of input types and an output type. |
Structs
Materials | |
Tome | This is where all of the transmutation circles are inscribed. |
Traits
Transmutation | Transmutations require ingredients and produce a product. This is usually a function. |