kiki 7.0.0

A minimalist parser generator for Rust.
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

#[derive(Clone, Debug)]
pub struct File {
    pub items: Vec<FileItem>,
}

#[derive(Clone, Debug)]
pub enum FileItem {
    Start(Ident),
    Struct(Struct),
    Enum(Enum),
    Terminal(TerminalEnum),
}

#[derive(Clone, Debug)]
pub struct Struct {
    pub attributes: Vec<Attribute>,
    pub name: Ident,
    pub fieldset: Fieldset,
}

#[derive(Clone, Debug)]
pub struct Enum {
    pub attributes: Vec<Attribute>,
    pub name: Ident,
    pub variants: Vec<EnumVariant>,
}

#[derive(Clone, Debug)]
pub struct TerminalEnum {
    pub attributes: Vec<Attribute>,
    pub name: Ident,
    pub variants: Vec<TerminalEnumVariant>,
}

pub use crate::data::token::Attribute;

#[derive(Clone, Debug)]
pub enum Fieldset {
    Empty,
    Named(NamedFieldset),
    Tuple(TupleFieldset),
}

impl Fieldset {
    pub fn len(&self) -> usize {
        match self {
            Fieldset::Empty => 0,
            Fieldset::Named(named) => named.fields.len(),
            Fieldset::Tuple(tuple) => tuple.fields.len(),
        }
    }

    pub fn is_empty(&self) -> bool {
        self.len() == 0
    }

    pub fn get_symbol_ident(&self, i: usize) -> &IdentOrTerminalIdent {
        match self {
            Fieldset::Empty => panic!("Called Fieldset::get_symbol_ident on Fieldset::Empty"),
            Fieldset::Named(named) => &named.fields[i].symbol,
            Fieldset::Tuple(tuple) => tuple.fields[i].symbol(),
        }
    }
}

#[derive(Clone, Debug)]
pub struct NamedFieldset {
    pub fields: Vec<NamedField>,
}

impl NamedFieldset {
    pub fn has_used_field(&self) -> bool {
        self.fields.iter().any(NamedField::is_used)
    }
}
#[derive(Clone, Debug)]
pub struct NamedField {
    pub name: IdentOrUnderscore,
    pub symbol: IdentOrTerminalIdent,
}

impl NamedField {
    pub fn is_used(&self) -> bool {
        match self.name {
            IdentOrUnderscore::Ident(_) => true,
            IdentOrUnderscore::Underscore(_) => false,
        }
    }
}

#[derive(Clone, Debug)]
pub struct TupleFieldset {
    pub fields: Vec<TupleField>,
}

impl TupleFieldset {
    pub fn has_used_field(&self) -> bool {
        self.fields.iter().any(TupleField::is_used)
    }
}

#[derive(Clone, Debug)]
pub enum TupleField {
    Used(IdentOrTerminalIdent),
    Skipped(IdentOrTerminalIdent),
}

impl TupleField {
    pub fn is_used(&self) -> bool {
        match self {
            TupleField::Used(_) => true,
            TupleField::Skipped(_) => false,
        }
    }
}

impl TupleField {
    pub fn symbol(&self) -> &IdentOrTerminalIdent {
        match self {
            TupleField::Used(symbol) => symbol,
            TupleField::Skipped(symbol) => symbol,
        }
    }
}

#[derive(Clone, Debug)]
pub struct EnumVariant {
    pub name: Ident,
    pub fieldset: Fieldset,
}

#[derive(Clone, Debug)]
pub struct TerminalEnumVariant {
    pub name: TerminalIdent,
    pub type_: Type,
}

#[derive(Clone, Debug)]
pub enum Type {
    Unit,
    Path(Vec<Ident>),
    Complex(Box<ComplexType>),
}

#[derive(Clone, Debug)]
pub struct ComplexType {
    pub callee: Vec<Ident>,
    pub args: Vec<Type>,
}

pub use crate::data::cst::{Ident, IdentOrTerminalIdent, IdentOrUnderscore, TerminalIdent, Token};