Method resolve_mro

crates/vm/src/builtins/type.rs:561–575

(bases: &[PyRef<Self>])

    }

    fn resolve_mro(bases: &[PyRef<Self>]) -> Result<Vec<PyTypeRef>, String> {
        // Check for duplicates in bases.
        let mut unique_bases = HashSet::new();
        for base in bases {
            if !unique_bases.insert(base.get_id()) {
                return Err(format!("duplicate base class {}", base.name()));
            }
        }

        let mros = bases
            .iter()
            .map(|base| base.mro_map_collect(|t| t.to_owned()))
            .collect();
        linearise_mro(mros)
    }

    /// Inherit SEQUENCE and MAPPING flags from base classes
    /// Check all bases in order and inherit the first SEQUENCE or MAPPING flag found