66 lines
1.9 KiB
Rust
66 lines
1.9 KiB
Rust
|
#![allow(dead_code)]
|
||
|
|
use std::rc::Rc;
|
||
|
|
use super::structure::{RSsystem, RSlabel, RSset, RSprocess};
|
||
|
|
use super::transitions::unfold;
|
||
|
|
|
||
|
|
#[derive(Clone, Debug)]
|
||
|
|
pub struct TransitionsIterator<'a> {
|
||
|
|
choices_iterator: std::vec::IntoIter<(Rc<RSset<'a>>, Rc<RSprocess<'a>>)>,
|
||
|
|
system: &'a RSsystem<'a>
|
||
|
|
}
|
||
|
|
|
||
|
|
impl<'a> TransitionsIterator<'a> {
|
||
|
|
pub fn from(system: &'a RSsystem<'a>) -> Result<TransitionsIterator<'a>, String> {
|
||
|
|
match unfold(system.get_delta(), system.get_context_process()) {
|
||
|
|
Ok(o) => Ok(
|
||
|
|
TransitionsIterator {
|
||
|
|
choices_iterator: o.into_iter(),
|
||
|
|
system
|
||
|
|
}
|
||
|
|
),
|
||
|
|
Err(e) => Err(e)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
impl<'a> Iterator for TransitionsIterator<'a> {
|
||
|
|
type Item = (RSlabel<'a>, RSsystem<'a>);
|
||
|
|
|
||
|
|
fn next(&mut self) -> Option<(RSlabel<'a>, RSsystem<'a>)> {
|
||
|
|
let choice = self.choices_iterator.next()?;
|
||
|
|
let t = self.system.get_available_entities().union(choice.0.as_ref());
|
||
|
|
let (reactants, reactantsi, inihibitors, ireactants, products)
|
||
|
|
= self.system.get_reaction_rules().iter()
|
||
|
|
.fold((RSset::new(), RSset::new(), RSset::new(), RSset::new(), RSset::new()),
|
||
|
|
|acc, reaction| if reaction.enabled(&t) {
|
||
|
|
(acc.0.union(reaction.reactants()),
|
||
|
|
acc.1,
|
||
|
|
acc.2.union(reaction.inihibitors()),
|
||
|
|
acc.3,
|
||
|
|
acc.4.union(reaction.products()))
|
||
|
|
} else {
|
||
|
|
(acc.0,
|
||
|
|
acc.1.union(&reaction.inihibitors().intersection(&t)),
|
||
|
|
acc.2,
|
||
|
|
acc.3.union(&reaction.reactants().subtraction(&t)),
|
||
|
|
acc.4)
|
||
|
|
}
|
||
|
|
|
||
|
|
);
|
||
|
|
|
||
|
|
let label = RSlabel::from(self.system.get_available_entities().clone(),
|
||
|
|
(*choice.0).clone(),
|
||
|
|
t,
|
||
|
|
reactants,
|
||
|
|
reactantsi,
|
||
|
|
inihibitors,
|
||
|
|
ireactants,
|
||
|
|
products.clone());
|
||
|
|
let new_system = RSsystem::from(self.system.get_delta().clone(),
|
||
|
|
products,
|
||
|
|
(*choice.1).clone(),
|
||
|
|
self.system.get_reaction_rules().clone());
|
||
|
|
Some((label, new_system))
|
||
|
|
}
|
||
|
|
}
|