emmylua_code_analysis 0.22.0

A library for analyzing lua code.
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

#[cfg(test)]
mod test {
    use crate::{DiagnosticCode, VirtualWorkspace};

    #[test]
    fn test_1() {
        let mut ws = VirtualWorkspace::new();
        ws.def(
            r#"
        ---@return any ...
        ---@return integer offset
        local function unpack() end
        a, b, c, d = unpack()
        "#,
        );

        assert_eq!(ws.expr_ty("a"), ws.ty("any"));
        assert_eq!(ws.expr_ty("b"), ws.ty("integer"));
        assert_eq!(ws.expr_ty("c"), ws.ty("nil"));
        assert_eq!(ws.expr_ty("d"), ws.ty("nil"));
    }

    #[test]
    fn test_2() {
        let mut ws = VirtualWorkspace::new();
        ws.def(
            r#"
        ---@return integer offset
        ---@return any ...
        local function unpack() end
        a, b, c, d = unpack()
        "#,
        );

        assert_eq!(ws.expr_ty("a"), ws.ty("integer"));
        assert_eq!(ws.expr_ty("b"), ws.ty("any"));
        assert_eq!(ws.expr_ty("c"), ws.ty("any"));
        assert_eq!(ws.expr_ty("d"), ws.ty("any"));
    }

    #[test]
    fn test_3() {
        let mut ws = VirtualWorkspace::new();
        assert!(ws.check_code_for(
            DiagnosticCode::ParamTypeMismatch,
            r#"
                ---@return any ...
                ---@return integer offset
                local function unpack() end

                ---@param a nil|integer|'l'|'L'
                local function test(a) end
                local len = unpack()
                test(len)
        "#,
        ));
    }
}