Function check_unresolvable_class_name

src/completion/resolver.rs:1205–1221

Check whether a raw type string refers to a class that cannot be loaded. Returns `Some(class_name)` when the type looks like a class name (not scalar, not a PHPDoc pseudo-type) but the class loader cannot find it. Returns `None` for scalars, unions, shapes, and types that resolve successfully.

(
    raw_type: &PhpType,
    class_loader: &dyn Fn(&str) -> Option<Arc<ClassInfo>>,
)

/// find it.  Returns `None` for scalars, unions, shapes, and types
/// that resolve successfully.
fn check_unresolvable_class_name(
    raw_type: &PhpType,
    class_loader: &dyn Fn(&str) -> Option<Arc<ClassInfo>>,
) -> Option<PhpType> {
    if raw_type.all_members_scalar() {
        return None;
    }

    let effective = raw_type.non_null_type().unwrap_or_else(|| raw_type.clone());
    let base = effective.base_name()?;

    if class_loader(base).is_none() {
        Some(PhpType::Named(base.to_string()))
    } else {
        None
    }
}

/// Shared variable-resolution logic extracted from the former
/// bare-`$var` branch of `resolve_target_classes`.