lumesh 0.18.2

a lighting shell ⚡ bash alternative
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56

use std::{collections::HashMap, rc::Rc};

use crate::{
    Environment, Expression, RuntimeError,
    libs::{BuiltinFunc, BuiltinInfo, helper::check_args_len},
    reg_all, reg_info,
};
use std::collections::BTreeMap;

pub fn regist_all() -> HashMap<&'static str, Rc<BuiltinFunc>> {
    reg_all!({
        and,or,not
    })
}

pub fn regist_info() -> BTreeMap<&'static str, BuiltinInfo> {
    reg_info!({
        and => "logic and", "<boolean1>..."
        or => "logic or", "<boolean1>..."
        not => "logic not", "<boolean1>..."
    })
}

fn and(
    args: Vec<Expression>,
    env: &mut Environment,
    ctx: &Expression,
) -> Result<Expression, RuntimeError> {
    check_args_len("and", &args, 2.., ctx)?;
    let r = args
        .iter()
        .any(|x| !x.eval(env).is_ok_and(|y| y.is_truthy()));
    Ok(Expression::Boolean(r))
}
fn or(
    args: Vec<Expression>,
    env: &mut Environment,
    ctx: &Expression,
) -> Result<Expression, RuntimeError> {
    check_args_len("or", &args, 2.., ctx)?;
    let r = args
        .iter()
        .any(|x| x.eval(env).is_ok_and(|y| y.is_truthy()));
    Ok(Expression::Boolean(r))
}
pub fn not(
    args: Vec<Expression>,
    env: &mut Environment,
    ctx: &Expression,
) -> Result<Expression, RuntimeError> {
    check_args_len("not", &args, 2.., ctx)?;
    let r = args
        .iter()
        .any(|x| !x.eval(env).is_ok_and(|y| y.is_truthy()));
    Ok(Expression::Boolean(!r))
}