wander 0.5.0

The Wander scripting language.
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
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123

// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

use wander::parser::Element;
use wander::{run, NoHostType, WanderValue};

use crate::utilities::{introspect_str, parse_str};
use wander::interpreter::Expression;
use wander::preludes::common;
use wander::translation::translate;

#[path = "utilities.rs"]
mod utilities;

#[test]
fn parse_pipe_value_to_name() {
    let res = introspect_str("false | not");
    let expected = Element::Grouping(vec![
        Element::Grouping(vec![Element::Boolean(false)]),
        Element::Pipe,
        Element::Grouping(vec![Element::Name("not".to_owned())]),
    ]);
    assert_eq!(res.element, expected);
    let expected = Expression::Application(vec![
        Expression::Name("not".to_owned()),
        Expression::Boolean(false),
    ]);
    assert_eq!(res.expression, expected);
}

#[test]
fn parse_pipe_value_to_application() {
    let res = parse_str("false | Bool.and true");
    let expected = Element::Grouping(vec![
        Element::Grouping(vec![Element::Boolean(false)]),
        Element::Pipe,
        Element::Grouping(vec![
            Element::Name("Bool.and".to_owned()),
            Element::Boolean(true),
        ]),
    ]);
    assert_eq!(res, expected);
    let res = translate(res).unwrap();
    let expected = Expression::Application(vec![
        Expression::Name("Bool.and".to_owned()),
        Expression::Boolean(true),
        Expression::Boolean(false),
    ]);
    assert_eq!(res, expected);
}

#[test]
fn parse_pipe_application_to_application() {
    let res = parse_str("Bool.not false | Bool.and true");
    let expected = Element::Grouping(vec![
        Element::Grouping(vec![
            Element::Name("Bool.not".to_owned()),
            Element::Boolean(false),
        ]),
        Element::Pipe,
        Element::Grouping(vec![
            Element::Name("Bool.and".to_owned()),
            Element::Boolean(true),
        ]),
    ]);
    assert_eq!(res, expected);
    let res = translate(res).unwrap();
    let expected = Expression::Application(vec![
        Expression::Name("Bool.and".to_owned()),
        Expression::Boolean(true),
        Expression::Application(vec![
            Expression::Name("Bool.not".to_owned()),
            Expression::Boolean(false),
        ]),
    ]);
    assert_eq!(res, expected);
}

#[test]
fn run_pipe_value_to_name() {
    let res = run("false | Bool.not", &mut common::<NoHostType>());
    let expected = Ok(WanderValue::Bool(true));
    assert_eq!(res, expected);
}

#[test]
fn run_pipe_value_to_application() {
    let res = run("false | Bool.and true", &mut common::<NoHostType>());
    let expected = Ok(WanderValue::Bool(false));
    assert_eq!(res, expected);
}

#[test]
fn run_pipe_application_to_application() {
    let res = run(
        "Bool.not false | Bool.and true",
        &mut common::<NoHostType>(),
    );
    let expected = Ok(WanderValue::Bool(true));
    assert_eq!(res, expected);
}

#[test]
fn run_multiple_pipes() {
    let res = run(
        "Bool.not false | Bool.and true | Bool.not",
        &mut common::<NoHostType>(),
    );
    let expected = Ok(WanderValue::Bool(false));
    assert_eq!(res, expected);
}

#[test]
#[ignore]
fn run_pipe_in_let_expression() {
    let res = run(
        "let in true | Bool.not end",
        &mut common::<NoHostType>(),
    );
    let expected = Ok(WanderValue::Bool(false));
    assert_eq!(res, expected);
}