Struct extendr_api::wrapper::Symbol

pub struct Symbol<'a>(pub &'a str);

Wrapper for creating symbols.

use extendr_api::prelude::*;
test! {
    let symbol = r!(Symbol("xyz"));
    assert_eq!(symbol.as_symbol(), Some(Symbol("xyz")));
    assert!(symbol.is_symbol());
}

Note that creating a symbol from a string is expensive and so you may want to cache them.

Trait Implementations

impl<'a> Clone for Symbol<'a>

fn clone(&self) -> Symbol<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Symbol<'a>

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

Formats the value using the given formatter.

impl<'a> From<&'a str> for Symbol<'a>

Allow you to skip the Symbol() in some cases.

fn from(val: &'a str) -> Self

Performs the conversion.

impl<'a> From<Symbol<'a>> for Robj

fn from(name: Symbol<'_>) -> Self

Make a symbol object.

impl<'a> FromRobj<'a> for Symbol<'a>

fn from_robj(robj: &'a Robj) -> Result<Self, &'static str>

impl<'a> PartialEq<Symbol<'a>> for Symbol<'a>

fn eq(&self, other: &Symbol<'a>) -> bool

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

fn ne(&self, other: &Symbol<'a>) -> bool

This method tests for !=.

impl<'a> StructuralPartialEq for Symbol<'a>