py-rs 0.1.1

generate python bindings from rust types
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

#![allow(dead_code)]

#[cfg(feature = "serde-compat")]
use serde::Deserialize;
use py_rs::PY;

#[derive(PY)]
#[cfg_attr(feature = "serde-compat", derive(Deserialize))]
#[cfg_attr(feature = "serde-compat", serde(tag = "kind", content = "d"))]
#[cfg_attr(not(feature = "serde-compat"), py(tag = "kind", content = "d"))]
#[py(export, export_to = "union_serde/")]
enum SimpleEnum {
    A,
    B,
}

#[derive(PY)]
#[cfg_attr(feature = "serde-compat", derive(Deserialize))]
#[cfg_attr(feature = "serde-compat", serde(tag = "kind", content = "data"))]
#[cfg_attr(not(feature = "serde-compat"), py(tag = "kind", content = "data"))]
#[py(export, export_to = "union_serde/")]
enum ComplexEnum {
    A,
    B { foo: String, bar: f64 },
    W(SimpleEnum),
    F { nested: SimpleEnum },
    T(i32, SimpleEnum),
}

#[derive(PY)]
#[cfg_attr(feature = "serde-compat", derive(Deserialize))]
#[cfg_attr(feature = "serde-compat", serde(untagged))]
#[cfg_attr(not(feature = "serde-compat"), py(untagged))]
#[py(export, export_to = "union_serde/")]
enum Untagged {
    Foo(String),
    Bar(i32),
    None,
}

#[test]
fn test_serde_enum() {
    assert_eq!(
        SimpleEnum::decl(),
        r#"type SimpleEnum = { "kind": "A" } | { "kind": "B" };"#
    );
    assert_eq!(
        ComplexEnum::decl(),
        r#"type ComplexEnum = { "kind": "A" } | { "kind": "B", "data": { foo: string, bar: number, } } | { "kind": "W", "data": SimpleEnum } | { "kind": "F", "data": { nested: SimpleEnum, } } | { "kind": "T", "data": [number, SimpleEnum] };"#
    );

    assert_eq!(
        Untagged::decl(),
        r#"type Untagged = string | number | null;"#
    )
}