agdb 0.12.10

Agnesoft Graph Database
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
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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176

use crate::api_def::Generic;
use crate::api_def::NamedType;
use crate::api_def::Type;
use crate::api_def::expression_def::Expression;

pub struct Function {
    pub name: &'static str,
    pub generics: &'static [Generic],
    pub args: &'static [NamedType],
    pub ret: Option<fn() -> Type>,
    pub async_fn: bool,
    pub expressions: &'static [Expression],
}

#[cfg(test)]
mod tests {
    use crate::api_def::TypeDefinition;

    #[test]
    fn simple_function() {
        #[derive(agdb::TypeDef)]
        struct StructWithFunction;

        #[agdb::impl_def()]
        #[allow(dead_code)]
        impl StructWithFunction {
            fn example_function() {}
        }

        let functions = StructWithFunction::type_def().functions();

        assert_eq!(functions.len(), 1);
        assert_eq!(functions[0].name, "example_function");
        assert!(functions[0].generics.is_empty());
        assert!(functions[0].args.is_empty());
        assert!(functions[0].ret.is_none());
        assert!(functions[0].expressions.is_empty());
    }

    #[test]
    fn function_with_args_and_return() {
        #[derive(agdb::TypeDef)]
        struct StructWithFunctionArgs;

        #[agdb::impl_def()]
        #[allow(dead_code)]
        impl StructWithFunctionArgs {
            fn add(a: i32, b: i32) -> i32 {
                a + b
            }
        }

        let functions = StructWithFunctionArgs::type_def().functions();

        assert_eq!(functions.len(), 1);
        let func = &functions[0];
        assert_eq!(func.name, "add");
        assert_eq!(func.args.len(), 2);
        assert_eq!(func.args[0].name, "a");
        assert_eq!((func.args[0].ty.unwrap())().name(), "i32");
        assert_eq!(func.args[1].name, "b");
        assert_eq!((func.args[1].ty.unwrap())().name(), "i32");
        assert!(func.ret.is_some());
    }

    #[test]
    fn function_with_generics() {
        #[derive(agdb::TypeDef)]
        struct StructWithGenericFunction;

        #[agdb::impl_def()]
        #[allow(dead_code)]
        impl StructWithGenericFunction {
            fn identity<T>(value: T) -> T {
                value
            }
        }

        let functions = StructWithGenericFunction::type_def().functions();

        assert_eq!(functions.len(), 1);
        let func = &functions[0];
        assert_eq!(func.name, "identity");
        assert_eq!(func.generics.len(), 1);
        assert_eq!(func.generics[0].name, "T");
        assert_eq!(func.args.len(), 1);
        assert_eq!(func.args[0].name, "value");
        assert_eq!((func.args[0].ty.unwrap())().name(), "T");
        assert!(func.ret.is_some());
    }

    #[test]
    fn impl_with_generics() {
        #[derive(agdb::TypeDef)]
        #[allow(dead_code)]
        struct StructWithGenericImpl<T> {
            value: T,
        }

        #[agdb::impl_def()]
        #[allow(dead_code)]
        impl<T> StructWithGenericImpl<T> {
            fn generic_method(value: T) -> T {
                value
            }
        }

        let functions = StructWithGenericImpl::<i32>::type_def().functions();

        assert_eq!(functions.len(), 1);
        let func = &functions[0];
        assert_eq!(func.name, "generic_method");
        assert_eq!(func.generics.len(), 0);
        assert_eq!(func.args.len(), 1);
        assert_eq!(func.args[0].name, "value");
        assert_eq!((func.args[0].ty.unwrap())().name(), "T");
        assert!(func.ret.is_some());
    }

    #[test]
    fn impl_with_generics_and_bounds() {
        trait Debuggable {}

        impl Debuggable for i32 {}

        #[derive(agdb::TypeDef)]
        #[allow(dead_code)]
        struct StructWithBoundedGenericImpl<T: Debuggable> {
            value: T,
        }

        #[agdb::impl_def()]
        #[allow(dead_code)]
        impl<T> StructWithBoundedGenericImpl<T>
        where
            T: Debuggable,
        {
            fn debug_value(value: T) -> T {
                value
            }
        }

        let functions = StructWithBoundedGenericImpl::<i32>::type_def().functions();

        assert_eq!(functions.len(), 1);
        let func = &functions[0];
        assert_eq!(func.name, "debug_value");
        assert_eq!(func.generics.len(), 0);
        assert_eq!(func.args.len(), 1);
        assert_eq!(func.args[0].name, "value");
        assert_eq!((func.args[0].ty.unwrap())().name(), "T");
        assert!(func.ret.is_some());
    }

    #[test]
    fn async_function() {
        #[derive(agdb::TypeDef)]
        struct StructWithAsync;

        #[agdb::impl_def()]
        #[allow(dead_code)]
        impl StructWithAsync {
            async fn async_function() {}
        }

        let functions = StructWithAsync::type_def().functions();

        assert_eq!(functions.len(), 1);
        assert_eq!(functions[0].name, "async_function");
        assert!(functions[0].generics.is_empty());
        assert!(functions[0].args.is_empty());
        assert!(functions[0].ret.is_none());
        assert!(functions[0].async_fn);
        assert!(functions[0].expressions.is_empty());
    }
}