[go: up one dir, main page]

aster 0.1.10

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

#![feature(rustc_private)]

extern crate aster;
extern crate syntax;

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

use aster::AstBuilder;

#[test]
fn test_no_args_return_isize() {
    let builder = AstBuilder::new();
    let fn_decl = builder.fn_decl().return_().isize();

    assert_eq!(
        fn_decl,
        P(ast::FnDecl {
            inputs: vec![],
            output: ast::Return(builder.ty().isize()),
            variadic: false,
        })
    );
}

#[test]
fn test_args_return_isize() {
    let builder = AstBuilder::new();
    let fn_decl = builder.fn_decl()
        .arg("x").ty().isize()
        .arg("y").ty().isize()
        .return_().isize();

    assert_eq!(
        fn_decl,
        P(ast::FnDecl {
            inputs: vec![
                ast::Arg {
                    ty: builder.ty().isize(),
                    pat: builder.pat().id("x"),
                    id: ast::DUMMY_NODE_ID,
                },
                ast::Arg {
                    ty: builder.ty().isize(),
                    pat: builder.pat().id("y"),
                    id: ast::DUMMY_NODE_ID,
                },
            ],
            output: ast::Return(builder.ty().isize()),
            variadic: false,
        })
    );
}

#[test]
fn test_no_return() {
    let builder = AstBuilder::new();
    let fn_decl = builder.fn_decl().no_return();

    assert_eq!(
        fn_decl,
        P(ast::FnDecl {
            inputs: vec![],
            output: ast::NoReturn(DUMMY_SP),
            variadic: false,
        })
    );
}

#[test]
fn test_default_return() {
    let builder = AstBuilder::new();
    let fn_decl = builder.fn_decl().default_return();

    assert_eq!(
        fn_decl,
        P(ast::FnDecl {
            inputs: vec![],
            output: ast::DefaultReturn(DUMMY_SP),
            variadic: false,
        })
    );
}