pipa-js 0.1.1

A fast, minimal ES2023 JavaScript runtime built in Rust.
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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199

use pipa::{JSRuntime, eval};

#[test]
fn test_array_creation() {
    let mut runtime = JSRuntime::new();
    let mut ctx = runtime.new_context();

    assert!(eval(&mut ctx, "var arr = [1, 2, 3]").is_ok());
    assert!(eval(&mut ctx, "var empty = []").is_ok());
    assert!(eval(&mut ctx, "var arr = new Array(5)").is_ok());
}

#[test]
fn test_array_push() {
    let mut runtime = JSRuntime::new();
    let mut ctx = runtime.new_context();

    assert!(eval(&mut ctx, "var arr = [1]; arr.push(2)").is_ok());
}

#[test]
fn test_array_concat() {
    let mut runtime = JSRuntime::new();
    let mut ctx = runtime.new_context();

    assert!(eval(&mut ctx, "[1, 2].concat([3, 4])").is_ok());
}

#[test]
fn test_array_index_of() {
    let mut runtime = JSRuntime::new();
    let mut ctx = runtime.new_context();

    assert!(eval(&mut ctx, "[1, 2, 3].indexOf(2)").is_ok());
}

#[test]
fn test_array_length() {
    let mut runtime = JSRuntime::new();
    let mut ctx = runtime.new_context();

    assert!(eval(&mut ctx, "[1, 2, 3].length").is_ok());
    assert!(
        eval(
            &mut ctx,
            "if ([1, 2, 3].length !== 3) { throw new Error('array length mismatch'); }"
        )
        .is_ok()
    );
}

#[test]
fn test_array_slice() {
    let mut runtime = JSRuntime::new();
    let mut ctx = runtime.new_context();

    assert!(eval(&mut ctx, "[1, 2, 3, 4].slice(1, 3)").is_ok());
}

#[test]
fn test_array_push_pop() {
    let mut runtime = JSRuntime::new();
    let mut ctx = runtime.new_context();

    let result = eval(&mut ctx, "var arr = [1, 2]; arr.push(3); arr.length");
    assert!(result.is_ok());
}

#[test]
fn test_array_includes() {
    let mut runtime = JSRuntime::new();
    let mut ctx = runtime.new_context();

    assert!(eval(&mut ctx, "[1, 2, 3].includes(2)").is_ok());
    assert!(eval(&mut ctx, "[1, 2, 3].includes(5)").is_ok());
}

#[test]
fn test_array_for_each() {
    let mut runtime = JSRuntime::new();
    let mut ctx = runtime.new_context();

    let result = eval(
        &mut ctx,
        "var sum = 0; [1, 2, 3].forEach(function(x) { sum = sum + x; }); if (sum !== 6) { throw new Error('forEach sum mismatch'); }",
    );
    if let Err(ref e) = result {
        println!("DEBUG ERROR: {}", e);
    }
    assert!(result.is_ok());
}

#[test]
fn test_array_map() {
    let mut runtime = JSRuntime::new();
    let mut ctx = runtime.new_context();

    assert!(eval(
        &mut ctx,
        "var arr = [1, 2, 3].map(function(x) { return x * 2; }); if (arr.length !== 3 || arr[0] !== 2 || arr[1] !== 4 || arr[2] !== 6) { throw new Error('map result mismatch'); }",
    )
    .is_ok());
}

#[test]
fn test_array_filter() {
    let mut runtime = JSRuntime::new();
    let mut ctx = runtime.new_context();

    assert!(eval(
        &mut ctx,
        "var arr = [1, 2, 3, 4, 5].filter(function(x) { return x > 2; }); if (arr.length !== 3 || arr[0] !== 3 || arr[1] !== 4 || arr[2] !== 5) { throw new Error('filter result mismatch'); }",
    )
    .is_ok());
}

#[test]
fn test_array_reduce() {
    let mut runtime = JSRuntime::new();
    let mut ctx = runtime.new_context();

    assert!(eval(
        &mut ctx,
        "var a = [1, 2, 3, 4].reduce(function(acc, x) { return acc + x; }, 0); var b = [1, 2, 3].reduce(function(acc, x) { return acc + x; }); if (a !== 10 || b !== 6) { throw new Error('reduce result mismatch'); }",
    )
    .is_ok());
}

#[test]
fn test_array_map_chain() {
    let mut runtime = JSRuntime::new();
    let mut ctx = runtime.new_context();

    let result = eval(
        &mut ctx,
        "[1, 2, 3].map(function(x) { return x * 2; }).map(function(x) { return x + 1; });",
    );
    assert!(result.is_ok());
}

#[test]
fn test_array_every() {
    let mut runtime = JSRuntime::new();
    let mut ctx = runtime.new_context();

    assert!(eval(
        &mut ctx,
        "var a = [2, 4, 6].every(function(x) { return x % 2 == 0; }); var b = [2, 5, 6].every(function(x) { return x % 2 == 0; }); var c = [].every(function(x) { return false; }); if (a !== true || b !== false || c !== true) { throw new Error('every result mismatch'); }",
    )
    .is_ok());
}

#[test]
fn test_array_some() {
    let mut runtime = JSRuntime::new();
    let mut ctx = runtime.new_context();

    assert!(eval(
        &mut ctx,
        "var a = [1, 4, 5].some(function(x) { return x % 2 == 1; }); var b = [2, 4, 6].some(function(x) { return x % 2 == 1; }); var c = [].some(function(x) { return true; }); if (a !== true || b !== false || c !== false) { throw new Error('some result mismatch'); }",
    )
    .is_ok());
}

#[test]
fn test_array_find() {
    let mut runtime = JSRuntime::new();
    let mut ctx = runtime.new_context();

    assert!(eval(
        &mut ctx,
        "var a = [1, 3, 5, 7].find(function(x) { return x > 4; }); var b = [1, 2, 3].find(function(x) { return x > 10; }); var c = [].find(function(x) { return true; }); if (a !== 5 || b !== undefined || c !== undefined) { throw new Error('find result mismatch'); }",
    )
    .is_ok());
}

#[test]
fn test_array_find_index() {
    let mut runtime = JSRuntime::new();
    let mut ctx = runtime.new_context();

    assert!(eval(
        &mut ctx,
        "var a = [1, 3, 5, 7].findIndex(function(x) { return x > 4; }); var b = [1, 2, 3].findIndex(function(x) { return x > 10; }); var c = [].findIndex(function(x) { return true; }); if (a !== 2 || b !== -1 || c !== -1) { throw new Error('findIndex result mismatch'); }",
    )
    .is_ok());
}

#[test]
fn test_array_reduce_right() {
    let mut runtime = JSRuntime::new();
    let mut ctx = runtime.new_context();

    assert!(eval(
        &mut ctx,
        "var a = [1, 2, 3, 4].reduceRight(function(acc, x) { return acc + x; }, 0); var b = [1, 2, 3].reduceRight(function(acc, x) { return acc - x; }); var c = [[1,2],[3,4],[5,6]].reduceRight(function(acc, x) { return acc.concat(x); }, []); if (a !== 10 || b !== 0 || c.length !== 6 || c[0] !== 5 || c[5] !== 2) { throw new Error('reduceRight result mismatch'); }",
    )
    .is_ok());
}