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Add support for comparing equality on reflective values

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Olivier 'reivilibre' 2023-10-15 17:43:09 +01:00
parent 2918260c5a
commit 678507bcbe
1 changed files with 10 additions and 0 deletions
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hornbeam_interpreter/src/engine.rs
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@ -576,6 +576,16 @@ impl<'a, O: OutputSystem + Send, LS: LocalisationSystem + Sync + Send> Interpret
match (lval, rval) {
(Value::Bool(lbool), Value::Bool(rbool)) => Ok(Value::Bool(lbool == rbool)),
(Value::Int(lint), Value::Int(rint)) => Ok(Value::Bool(lint == rint)),
(Value::Reflective(lreflect), Value::Reflective(rreflect)) => {
match lreflect.reflect_partial_eq(rreflect.as_ref()) {
Some(answer) => Ok(Value::Bool(answer)),
None => Err(InterpreterError::TypeError {
context: "Equals".to_string(),
conflict: format!("can't test reflectives {lreflect:?} and {rreflect:?} for equality: they don't support it!"),
location: loc.clone(),
})
}
},
(lother, rother) => Err(InterpreterError::TypeError {
context: "Equals".to_string(),
conflict: format!("can't test {lother:?} and {rother:?} for equality!"),