aboutsummaryrefslogtreecommitdiff
path: root/crates/ra_hir/src/nameres/tests/macros.rs
blob: f7ca380ad175e7ec33f9f76a390d6ab865e4ce9a (plain)
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
use super::*;

#[test]
fn macro_rules_are_globally_visible() {
    let map = def_map(
        "
        //- /lib.rs
        macro_rules! structs {
            ($($i:ident),*) => {
                $(struct $i { field: u32 } )*
            }
        }
        structs!(Foo);
        mod nested;

        //- /nested.rs
        structs!(Bar, Baz);
        ",
    );
    assert_snapshot_matches!(map, @r###"
   ⋮crate
   ⋮Foo: t v
   ⋮nested: t

   ⋮crate::nested
   ⋮Bar: t v
   ⋮Baz: t v
    "###);
}

#[test]
fn macro_rules_can_define_modules() {
    let map = def_map(
        "
        //- /lib.rs
        macro_rules! m {
            ($name:ident) => { mod $name;  }
        }
        m!(n1);

        //- /n1.rs
        m!(n2)
        //- /n1/n2.rs
        struct X;
        ",
    );
    assert_snapshot_matches!(map, @r###"
   ⋮crate
   ⋮n1: t

   ⋮crate::n1
   ⋮n2: t

   ⋮crate::n1::n2
   ⋮X: t v
    "###);
}

#[test]
fn macro_rules_from_other_crates_are_visible() {
    let map = def_map_with_crate_graph(
        "
        //- /main.rs
        foo::structs!(Foo, Bar)
        mod bar;

        //- /bar.rs
        use crate::*;

        //- /lib.rs
        #[macro_export]
        macro_rules! structs {
            ($($i:ident),*) => {
                $(struct $i { field: u32 } )*
            }
        }
        ",
        crate_graph! {
            "main": ("/main.rs", ["foo"]),
            "foo": ("/lib.rs", []),
        },
    );
    assert_snapshot_matches!(map, @r###"
   ⋮crate
   ⋮Bar: t v
   ⋮Foo: t v
   ⋮bar: t

   ⋮crate::bar
   ⋮Bar: t v
   ⋮Foo: t v
   ⋮bar: t
    "###);
}