sway_ast/ty/
mod.rs

1use crate::priv_prelude::*;
2
3#[allow(clippy::large_enum_variant)]
4#[derive(Clone, Debug, Serialize)]
5pub enum Ty {
6    Path(PathType),
7    Tuple(Parens<TyTupleDescriptor>),
8    Array(SquareBrackets<TyArrayDescriptor>),
9    StringSlice(StrToken),
10    StringArray {
11        str_token: StrToken,
12        length: SquareBrackets<Box<Expr>>,
13    },
14    Infer {
15        underscore_token: UnderscoreToken,
16    },
17    Ptr {
18        ptr_token: PtrToken,
19        ty: SquareBrackets<Box<Ty>>,
20    },
21    Slice {
22        slice_token: Option<SliceToken>,
23        ty: SquareBrackets<Box<Ty>>,
24    },
25    Ref {
26        ampersand_token: AmpersandToken,
27        mut_token: Option<MutToken>,
28        ty: Box<Ty>,
29    },
30    Never {
31        bang_token: BangToken,
32    },
33}
34
35impl Spanned for Ty {
36    fn span(&self) -> Span {
37        match self {
38            Ty::Path(path_type) => path_type.span(),
39            Ty::Tuple(tuple_type) => tuple_type.span(),
40            Ty::Array(array_type) => array_type.span(),
41            Ty::StringSlice(str_token) => str_token.span(),
42            Ty::StringArray { str_token, length } => Span::join(str_token.span(), &length.span()),
43            Ty::Infer { underscore_token } => underscore_token.span(),
44            Ty::Ptr { ptr_token, ty } => Span::join(ptr_token.span(), &ty.span()),
45            Ty::Slice { slice_token, ty } => {
46                let span = slice_token
47                    .as_ref()
48                    .map(|s| Span::join(s.span(), &ty.span()));
49                span.unwrap_or_else(|| ty.span())
50            }
51            Ty::Ref {
52                ampersand_token,
53                mut_token: _,
54                ty,
55            } => Span::join(ampersand_token.span(), &ty.span()),
56            Ty::Never { bang_token } => bang_token.span(),
57        }
58    }
59}
60
61impl Ty {
62    pub fn name_span(&self) -> Option<Span> {
63        if let Ty::Path(path_type) = self {
64            Some(path_type.last_segment().name.span())
65        } else {
66            None
67        }
68    }
69}
70
71#[derive(Clone, Debug, Serialize)]
72pub enum TyTupleDescriptor {
73    Nil,
74    Cons {
75        head: Box<Ty>,
76        comma_token: CommaToken,
77        tail: Punctuated<Ty, CommaToken>,
78    },
79}
80
81impl TyTupleDescriptor {
82    pub fn to_tys(self) -> Vec<Ty> {
83        match self {
84            TyTupleDescriptor::Nil => vec![],
85            TyTupleDescriptor::Cons { head, tail, .. } => {
86                let mut tys = vec![*head];
87                for ty in tail.into_iter() {
88                    tys.push(ty);
89                }
90                tys
91            }
92        }
93    }
94}
95
96#[derive(Clone, Debug, Serialize)]
97pub struct TyArrayDescriptor {
98    pub ty: Box<Ty>,
99    pub semicolon_token: SemicolonToken,
100    pub length: Box<Expr>,
101}
sway_ast/ty/mod.rs

sway_ast/ty/
mod.rs
