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    Expr(Box<Expr>),
34}
35
36impl Spanned for Ty {
37    fn span(&self) -> Span {
38        match self {
39            Ty::Path(path_type) => path_type.span(),
40            Ty::Tuple(tuple_type) => tuple_type.span(),
41            Ty::Array(array_type) => array_type.span(),
42            Ty::StringSlice(str_token) => str_token.span(),
43            Ty::StringArray { str_token, length } => Span::join(str_token.span(), &length.span()),
44            Ty::Infer { underscore_token } => underscore_token.span(),
45            Ty::Ptr { ptr_token, ty } => Span::join(ptr_token.span(), &ty.span()),
46            Ty::Slice { slice_token, ty } => {
47                let span = slice_token
48                    .as_ref()
49                    .map(|s| Span::join(s.span(), &ty.span()));
50                span.unwrap_or_else(|| ty.span())
51            }
52            Ty::Ref {
53                ampersand_token,
54                mut_token: _,
55                ty,
56            } => Span::join(ampersand_token.span(), &ty.span()),
57            Ty::Never { bang_token } => bang_token.span(),
58            Ty::Expr(expr) => expr.span(),
59        }
60    }
61}
62
63impl Ty {
64    pub fn name_span(&self) -> Option<Span> {
65        if let Ty::Path(path_type) = self {
66            Some(path_type.last_segment().name.span())
67        } else {
68            None
69        }
70    }
71}
72
73#[derive(Clone, Debug, Serialize)]
74pub enum TyTupleDescriptor {
75    Nil,
76    Cons {
77        head: Box<Ty>,
78        comma_token: CommaToken,
79        tail: Punctuated<Ty, CommaToken>,
80    },
81}
82
83impl TyTupleDescriptor {
84    pub fn to_tys(self) -> Vec<Ty> {
85        match self {
86            TyTupleDescriptor::Nil => vec![],
87            TyTupleDescriptor::Cons { head, tail, .. } => {
88                let mut tys = vec![*head];
89                for ty in tail.into_iter() {
90                    tys.push(ty);
91                }
92                tys
93            }
94        }
95    }
96}
97
98#[derive(Clone, Debug, Serialize)]
99pub struct TyArrayDescriptor {
100    pub ty: Box<Ty>,
101    pub semicolon_token: SemicolonToken,
102    pub length: Box<Expr>,
103}
sway_ast/ty/mod.rs

sway_ast/ty/
mod.rs
