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So, I have the following code, and it no longer compiles after a recent nightly. This issue appears to be inference-related. This is the error I'm suddenly getting:
markov/src/lib.rs:78:13: 78:27 error: unable to infer enough type information to locate the impl of the trait `core::cmp::Eq` for the type `_`; type annotations required
markov/src/lib.rs:78 self.map[p[0]].add(p[1].clone());
^~~~~~~~~~~~~~
Here's the code, the line with *** is the one that does not compile.:
impl<T:Eq + Hash>Chain<T>{// ...pubfnfeed(&mutself,tokens:Vec<T>) -> &mutChain<T>{if tokens.len() == 0{returnself}letmut toks = Vec::new();
toks.push(self.start.clone());
toks.extend(tokens.into_iter().map(|token| {let rc = Rc::new(token);if !self.map.contains_key(&rc){self.map.insert(rc.clone(),HashMap::new());}
rc
}));
toks.push(self.end.clone());for p in toks.windows(2){self.map[p[0]].add(p[1].clone());// *** does not compile}self}// ...}impl<T:Eq + Hash>States<T>forHashMap<Rc<T>,uint>{fnadd(&mutself,token:Rc<T>){matchself.entry(token){Occupied(mut e) => *e.get_mut() += 1,Vacant(e) => { e.set(1);},}}// ...}
If more context is needed, the full code can be seen here.
The text was updated successfully, but these errors were encountered:
So, I have the following code, and it no longer compiles after a recent nightly. This issue appears to be inference-related. This is the error I'm suddenly getting:
Here's the code, the line with *** is the one that does not compile.:
If more context is needed, the full code can be seen here.
The text was updated successfully, but these errors were encountered: