[go: up one dir, main page]

aster 0.9.3

A libsyntax ast builder
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

use syntax::ast;
use syntax::codemap::DUMMY_SP;
use syntax::ptr::P;

use aster::AstBuilder;

#[test]
fn test_id() {
    let builder = AstBuilder::new();
    let path = builder.path().id("isize").build();

    assert_eq!(
        path,
        ast::Path {
            span: DUMMY_SP,
            global: false,
            segments: vec![
                ast::PathSegment {
                    identifier: builder.id("isize"),
                    parameters: ast::PathParameters::none(),
                },
            ]
        }
    );
}

#[test]
fn test_single_segment() {
    let builder = AstBuilder::new();
    let path = builder.path()
        .segment("isize").build()
        .build();

    assert_eq!(
        path,
        ast::Path {
            span: DUMMY_SP,
            global: false,
            segments: vec![
                ast::PathSegment {
                    identifier: builder.id("isize"),
                    parameters: ast::PathParameters::none(),
                },
            ]
        }
    );
}

#[test]
fn test_multiple_segments() {
    let builder = AstBuilder::new();
    let path = builder.path().global()
        .id("std")
        .id("thread")
        .id("Thread")
        .build();

    assert_eq!(
        path,
        ast::Path {
            span: DUMMY_SP,
            global: true,
            segments: vec![
                ast::PathSegment {
                    identifier: builder.id("std"),
                    parameters: ast::PathParameters::none(),
                },
                ast::PathSegment {
                    identifier: builder.id("thread"),
                    parameters: ast::PathParameters::none(),
                },
                ast::PathSegment {
                    identifier: builder.id("Thread"),
                    parameters: ast::PathParameters::none(),
                },
            ]
        }
    );
}

#[test]
fn test_option() {
    let builder = AstBuilder::new();
    let path = builder.path().global()
        .id("std")
        .id("option")
        .segment("Option")
            .with_ty(builder.ty().id("isize"))
            .build()
        .build();

    assert_eq!(
        path,
        ast::Path {
            span: DUMMY_SP,
            global: true,
            segments: vec![
                ast::PathSegment {
                    identifier: builder.id("std"),
                    parameters: ast::PathParameters::none(),
                },
                ast::PathSegment {
                    identifier: builder.id("option"),
                    parameters: ast::PathParameters::none(),
                },
                ast::PathSegment {
                    identifier: builder.id("Option"),
                    parameters: ast::AngleBracketed(ast::AngleBracketedParameterData {
                        lifetimes: vec![],
                        types: P::from_vec(vec![
                            builder.ty().isize(),
                        ]),
                        bindings: P::empty(),
                    }),
                },
            ]
        }
    );
}

#[test]
fn test_lifetimes() {
    let builder = AstBuilder::new();
    let path = builder.path()
        .segment("Foo")
            .lifetime("'a")
            .build()
        .build();

    assert_eq!(
        path,
        ast::Path {
            span: DUMMY_SP,
            global: false,
            segments: vec![
                ast::PathSegment {
                    identifier: builder.id("Foo"),
                    parameters: ast::AngleBracketed(ast::AngleBracketedParameterData {
                        lifetimes: vec![
                            builder.lifetime("'a"),
                        ],
                        types: P::empty(),
                        bindings: P::empty(),
                    }),
                },
            ]
        }
    );
}