decouples meals generation

planner/src/solver.rs

@@ -1,7 +1,11 @@
+//! # Solver
+//!
+//! Provides `Variables`, `Domain` structs and `solve_all` function.
 use std::fmt;
 use std::clone::Clone;
 use std::collections::HashMap;
 
+/// An assignments map of variables
 pub type Variables<'a, V> = HashMap<String, Option<&'a V>>;
 
 enum Assignment<'a, V> {
@@ -10,6 +14,7 @@ enum Assignment<'a, V> {
 }
 
 
+/// The domain of values that can be assigned to variables
 #[derive(Clone)]
 pub struct Domain<V> {
     values: Vec<V>