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

use crate::priv_prelude::*;

#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Hash)]
pub struct LitString {
    pub span: Span,
    pub parsed: String,
}

#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Hash)]
pub struct LitChar {
    pub span: Span,
    pub parsed: char,
}

#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Hash)]
pub struct LitInt {
    pub span: Span,
    pub parsed: BigUint,
    pub ty_opt: Option<(LitIntType, Span)>,
}

#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Hash)]
pub enum LitIntType {
    U8,
    U16,
    U32,
    U64,
    I8,
    I16,
    I32,
    I64,
}

#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Hash)]
pub struct LitBool {
    pub span: Span,
    pub kind: LitBoolType,
}

#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Hash)]
pub enum LitBoolType {
    True,
    False,
}

impl From<LitBoolType> for bool {
    fn from(item: LitBoolType) -> Self {
        match item {
            LitBoolType::True => true,
            LitBoolType::False => false,
        }
    }
}

#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Hash)]
pub enum Literal {
    String(LitString),
    Char(LitChar),
    Int(LitInt),
    Bool(LitBool),
}

impl Spanned for LitString {
    fn span(&self) -> Span {
        self.span.clone()
    }
}

impl Spanned for LitChar {
    fn span(&self) -> Span {
        self.span.clone()
    }
}

impl Spanned for LitInt {
    fn span(&self) -> Span {
        match &self.ty_opt {
            Some((_lit_int_ty, span)) => Span::join(self.span.clone(), span.clone()),
            None => self.span.clone(),
        }
    }
}

impl Spanned for LitBool {
    fn span(&self) -> Span {
        self.span.clone()
    }
}

impl Spanned for Literal {
    fn span(&self) -> Span {
        match self {
            Literal::String(lit_string) => lit_string.span(),
            Literal::Char(lit_char) => lit_char.span(),
            Literal::Int(lit_int) => lit_int.span(),
            Literal::Bool(lit_bool) => lit_bool.span(),
        }
    }
}