icydb-model 0.217.0

IcyDB application-model authoring, validation, and code generation
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

use crate::prelude::*;

///
/// Enum
///

#[derive(Clone, Debug, Serialize)]
pub struct Enum {
    def: Def,
    name: &'static str,
    variants: &'static [EnumVariant],
    ty: Type,
}

impl Enum {
    #[must_use]
    pub const fn new(
        def: Def,
        name: &'static str,
        variants: &'static [EnumVariant],
        ty: Type,
    ) -> Self {
        Self {
            def,
            name,
            variants,
            ty,
        }
    }

    #[must_use]
    pub const fn def(&self) -> &Def {
        &self.def
    }

    /// Borrow the current declared enum type name.
    #[must_use]
    pub const fn name(&self) -> &'static str {
        self.name
    }

    #[must_use]
    pub const fn variants(&self) -> &'static [EnumVariant] {
        self.variants
    }

    #[must_use]
    pub const fn ty(&self) -> &Type {
        &self.ty
    }
}

impl MacroNode for Enum {
    fn as_any(&self) -> &dyn std::any::Any {
        self
    }
}

impl ValidateNode for Enum {
    fn validate(&self) -> Result<(), ErrorTree> {
        let mut errs = ErrorTree::new();
        validate_source_name(
            &mut errs,
            "enum type",
            self.name(),
            icydb_schema::TypeSourceKey::try_new,
        );
        let mut seen = std::collections::BTreeSet::new();
        for variant in self.variants() {
            if !seen.insert(variant.name()) {
                err!(errs, "duplicate enum variant name '{}'", variant.name(),);
            }
        }
        errs.result()
    }
}

impl VisitableNode for Enum {
    fn route_key(&self) -> String {
        self.def().path()
    }

    fn drive<V: Visitor>(&self, v: &mut V) {
        self.def().accept(v);
        for node in self.variants() {
            node.accept(v);
        }
        self.ty().accept(v);
    }
}

///
/// EnumVariant
///

#[derive(Clone, Debug, Serialize)]
pub struct EnumVariant {
    name: &'static str,

    #[serde(skip_serializing_if = "Option::is_none")]
    value: Option<Value>,
}

impl EnumVariant {
    #[must_use]
    pub const fn new(name: &'static str, value: Option<Value>) -> Self {
        Self { name, value }
    }

    /// Borrow the current declared variant name.
    #[must_use]
    pub const fn name(&self) -> &'static str {
        self.name
    }

    #[must_use]
    pub const fn value(&self) -> Option<&Value> {
        self.value.as_ref()
    }
}

impl ValidateNode for EnumVariant {
    fn validate(&self) -> Result<(), ErrorTree> {
        let mut errs = ErrorTree::new();
        validate_source_name(
            &mut errs,
            "enum variant",
            self.name(),
            icydb_schema::TypeSourceKey::try_new,
        );
        errs.result()
    }
}

impl VisitableNode for EnumVariant {
    fn drive<V: Visitor>(&self, v: &mut V) {
        if let Some(node) = self.value() {
            node.accept(v);
        }
    }
}