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use super::scalar::Rint;
use super::*;
use std::iter::FromIterator;
#[derive(PartialEq, Clone)]
pub struct Integers {
pub(crate) robj: Robj,
}
crate::wrapper::macros::gen_vector_wrapper_impl!(
vector_type: Integers,
scalar_type: Rint,
primitive_type: i32,
r_prefix: INTEGER,
SEXP: INTSXP,
doc_name: integer,
altrep_constructor: make_altinteger_from_iterator,
);
impl Integers {
pub fn get_region(&self, index: usize, dest: &mut [Rint]) -> usize {
unsafe {
let ptr: *mut i32 = dest.as_mut_ptr() as *mut i32;
INTEGER_GET_REGION(self.get(), index as R_xlen_t, dest.len() as R_xlen_t, ptr) as usize
}
}
pub fn is_sorted(&self) -> Rbool {
unsafe { INTEGER_IS_SORTED(self.get()).into() }
}
pub fn no_na(&self) -> Rbool {
unsafe { INTEGER_NO_NA(self.get()).into() }
}
}
#[cfg(test)]
mod tests {
use crate::prelude::*;
#[test]
fn from_iterator() {
test! {
let vec : Integers = (0..3).map(|i| i.into()).collect();
assert_eq!(vec, Integers::from_values([0, 1, 2]));
}
}
#[test]
fn iter_mut() {
test! {
let mut vec = Integers::from_values(0..3);
vec.iter_mut().for_each(|v| *v += 1);
assert_eq!(vec, Integers::from_values(1..4));
}
}
#[test]
fn iter() {
test! {
let vec = Integers::from_values(0..3);
assert_eq!(vec.iter().sum::<Rint>(), 3);
}
}
#[test]
fn from_values_short() {
test! {
let vec = Integers::from_values((0..3).map(|i| 2-i));
assert_eq!(vec.is_altrep(), false);
assert_eq!(r!(vec.clone()), r!([2, 1, 0]));
assert_eq!(vec.elt(1), 1);
let mut dest = [0.into(); 2];
vec.get_region(1, &mut dest);
assert_eq!(dest, [1, 0]);
}
}
#[test]
fn from_values_altrep() {
test! {
let vec = Integers::from_values_altrep(0..1000000000);
assert_eq!(vec.is_altrep(), true);
assert_eq!(vec.elt(12345678), 12345678);
let mut dest = [0.into(); 2];
vec.get_region(12345678, &mut dest);
assert_eq!(dest, [12345678, 12345679]);
}
}
#[test]
fn new() {
test! {
let vec = Integers::new(10);
assert_eq!(vec.is_integer(), true);
assert_eq!(vec.len(), 10);
}
}
}
impl Integers {
pub fn set_elt(&mut self, index: usize, val: Rint) {
unsafe {
SET_INTEGER_ELT(self.get(), index as R_xlen_t, val.inner());
}
}
}
impl Deref for Integers {
type Target = [Rint];
fn deref(&self) -> &Self::Target {
unsafe {
let ptr = DATAPTR_RO(self.get()) as *const Rint;
std::slice::from_raw_parts(ptr, self.len())
}
}
}
impl DerefMut for Integers {
fn deref_mut(&mut self) -> &mut Self::Target {
unsafe {
let ptr = DATAPTR(self.get()) as *mut Rint;
std::slice::from_raw_parts_mut(ptr, self.len())
}
}
}
impl std::fmt::Debug for Integers {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
if self.len() == 1 {
write!(f, "{:?}", self.elt(0))
} else {
f.debug_list().entries(self.iter()).finish()
}
}
}