Method repr

crates/vm/src/stdlib/_collections.rs:562–585

(zelf: &Py<Self>, vm: &VirtualMachine)

    impl Representable for PyDeque {
        #[inline]
        fn repr(zelf: &Py<Self>, vm: &VirtualMachine) -> PyResult<PyRef<PyStr>> {
            let deque = zelf.borrow_deque().clone();
            let class = zelf.class();
            let class_name = class.name();
            let closing_part = zelf
                .maxlen
                .map(|maxlen| format!("], maxlen={maxlen}"))
                .unwrap_or_else(|| "]".to_owned());

            if zelf.__len__() == 0 {
                return Ok(vm.ctx.new_str(format!("{class_name}([{closing_part})")));
            }
            if let Some(_guard) = ReprGuard::enter(vm, zelf.as_object()) {
                Ok(vm.ctx.new_str(collection_repr(
                    Some(&class_name),
                    "[",
                    &closing_part,
                    deque.iter(),
                    vm,
                )?))
            } else {
                Ok(vm.ctx.intern_str("[...]").to_owned())
            }
        }

        fn repr_str(_zelf: &Py<Self>, _vm: &VirtualMachine) -> PyResult<String> {
            unreachable!("repr() is overridden directly")