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Support iterating over reflective lists

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Olivier 'reivilibre' 2023-08-07 22:23:47 +01:00
parent cdba03c5d7
commit 1a1dc740e8
1 changed files with 26 additions and 0 deletions
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26
hornbeam_interpreter/src/engine.rs
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@ -203,6 +203,32 @@ impl<'a, O: OutputSystem + Send, LS: LocalisationSystem + Sync + Send> Interpret
self.scopes[scope_idx].variables.remove(binding as &str);
}
}
Value::Reflective(reflective) => match reflective.reflect_ref() {
ReflectRef::List(list) => {
if list.is_empty() {
self.run_steps(scope_idx, empty_steps).await?;
} else {
for idx in 0..list.len() {
// TODO(performance) I'd like to remove this clone!
// Can possibly do so with a Yoke or something...
let val = list.get(idx).expect("checked iter").clone_value();
self.scopes[scope_idx].variables.insert(
String::from(binding as &str),
Value::from_reflect(val),
);
self.run_steps(scope_idx, body_steps).await?;
}
self.scopes[scope_idx].variables.remove(binding as &str);
}
}
other => {
return Err(InterpreterError::TypeError {
context: "For".to_string(),
conflict: format!("not iterable reflective: {reflective:?}."),
location: step.locator.clone(),
});
}
},
// TODO string?
// TODO map (with k,v binding)?
other => {