Struct extendr_api::scalar::Rbool

pub struct Rbool(_);

Rbool is a wrapper for i32 in the context of an R’s logical vector.

Rbool can have a value of 0, 1 or i32::MIN.

The value i32::MIN is used as “NA”.

Rbool has the same footprint as an i32 value allowing us to use it in zero copy slices.

Implementations

impl Rbool

pub fn inner(&self) -> i32

Get underlying value.

pub const fn true_value() -> Rbool

Return a true Rbool.

pub const fn false_value() -> Rbool

Return a false Rbool.

pub const fn na_value() -> Rbool

Return a NA Rbool.

pub fn is_true(&self) -> bool

Return true if this triboolean is true but not NA.

pub fn is_false(&self) -> bool

Return true if this triboolean is false but not NA.

pub fn to_bool(&self) -> bool

Convert this Rbool to a bool. Note NA will be true.

pub fn from_bool(val: bool) -> Self

Convert this construct a Rbool from a rust boolean.

Trait Implementations

impl<'a> AsTypedSlice<'a, Rbool> for Robjwhere Self: 'a,

fn as_typed_slice(&self) -> Option<&'a [Rbool]>

fn as_typed_slice_mut(&mut self) -> Option<&'a mut [Rbool]>

impl CanBeNA for Rbool

use extendr_api::prelude::*;
test! {
    assert!((<Rbool>::na()).is_na());
}

fn is_na(&self) -> bool

Return true is the is a NA value.

fn na() -> Self

Construct a NA.

impl Clone for Rbool

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Rbool

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Debug format.

impl Default for Rbool

use extendr_api::prelude::*;
test! {
    assert_eq!(<Rbool>::default(), <bool>::default());
}

fn default() -> Self

Returns the “default value” for a type.

impl From<&i32> for Rbool

fn from(v: &i32) -> Self

Converts to this type from the input type.

impl From<Option<&i32>> for Rbool

fn from(v: Option<&i32>) -> Self

Converts to this type from the input type.

impl From<Option<bool>> for Rbool

fn from(v: Option<bool>) -> Self

Converts to this type from the input type.

impl From<Option<i32>> for Rbool

fn from(v: Option<i32>) -> Self

Converts to this type from the input type.

impl From<Rbool> for Option<bool>

fn from(v: Rbool) -> Self

Converts to this type from the input type.

impl From<bool> for Rbool

fn from(v: bool) -> Self

Converts to this type from the input type.

impl From<i32> for Rbool

fn from(v: i32) -> Self

Converts to this type from the input type.

impl FromIterator<Rbool> for Logicals

fn from_iter<T: IntoIterator<Item = Rbool>>(iter: T) -> Self

A more generalised iterator collector for small vectors. Generates a non-ALTREP vector.

impl Not for Rbool

type Output = Rbool

The resulting type after applying the ! operator.

fn not(self) -> Self::Output

Performs the unary ! operation.

impl PartialEq<Rbool> for Rbool

use extendr_api::prelude::*;
test! {
    assert!(<Rbool>::default().eq(&<Rbool>::default()));
    assert!(!<Rbool>::na().eq(&<Rbool>::na()));
}

fn eq(&self, other: &Rbool) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<bool> for &Rbool

use extendr_api::prelude::*;
test! {
    assert!(<Rbool>::default().eq(&<bool>::default()));
}

fn eq(&self, other: &bool) -> bool

NA always fails.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<bool> for Rbool

use extendr_api::prelude::*;
test! {
    assert!(<Rbool>::default().eq(&<bool>::default()));
}

fn eq(&self, other: &bool) -> bool

NA always fails.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl ToVectorValue for &Rbool

fn sexptype() -> SEXPTYPE

fn to_logical(&self) -> i32where Self: Sized,

fn to_real(&self) -> f64where Self: Sized,

fn to_complex(&self) -> Rcomplexwhere Self: Sized,

fn to_integer(&self) -> i32where Self: Sized,

fn to_raw(&self) -> u8where Self: Sized,

fn to_sexp(&self) -> SEXPwhere Self: Sized,

impl ToVectorValue for Rbool

fn sexptype() -> SEXPTYPE

fn to_logical(&self) -> i32where Self: Sized,

fn to_real(&self) -> f64where Self: Sized,

fn to_complex(&self) -> Rcomplexwhere Self: Sized,

fn to_integer(&self) -> i32where Self: Sized,

fn to_raw(&self) -> u8where Self: Sized,

fn to_sexp(&self) -> SEXPwhere Self: Sized,

impl TryFrom<&Robj> for Rbool

fn try_from(robj: &Robj) -> Result<Self>

Convert an LGLSXP object into a Rbool (tri-state boolean). Use value.is_na() to detect NA values.

type Error = Error

The type returned in the event of a conversion error.

impl TryFrom<Robj> for Rbool

type Error = Error

The type returned in the event of a conversion error.

fn try_from(robj: Robj) -> Result<Self>

Performs the conversion.

impl Copy for Rbool