Trait extendr_api::robj::Types

source · [−]

pub trait Types: GetSexp {
    fn rtype(&self) -> Rtype { ... }
    fn as_any(&self) -> Rany<'_> { ... }
}

Provided methods

source

fn rtype(&self) -> Rtype

Get the type of an R object.

use extendr_api::prelude::*;
test! {
    assert_eq!(r!(NULL).rtype(), Rtype::Null);
    assert_eq!(sym!(xyz).rtype(), Rtype::Symbol);
    assert_eq!(r!(Pairlist::from_pairs(vec![("a", r!(1))])).rtype(), Rtype::Pairlist);
    assert_eq!(R!("function() {}")?.rtype(), Rtype::Function);
    assert_eq!(Environment::new_with_parent(global_env()).rtype(), Rtype::Environment);
    assert_eq!(lang!("+", 1, 2).rtype(), Rtype::Language);
    assert_eq!(r!(Primitive::from_string("if")).rtype(), Rtype::Special);
    assert_eq!(r!(Primitive::from_string("+")).rtype(), Rtype::Builtin);
    assert_eq!(r!(Rstr::from_string("hello")).rtype(), Rtype::Rstr);
    assert_eq!(r!(TRUE).rtype(), Rtype::Logicals);
    assert_eq!(r!(1).rtype(), Rtype::Integers);
    assert_eq!(r!(1.0).rtype(), Rtype::Doubles);
    assert_eq!(r!("1").rtype(), Rtype::Strings);
    assert_eq!(r!(List::from_values(&[1, 2])).rtype(), Rtype::List);
    assert_eq!(parse("x + y")?.rtype(), Rtype::Expressions);
    assert_eq!(r!(Raw::from_bytes(&[1_u8, 2, 3])).rtype(), Rtype::Raw);
}