syn_solidity/item/
struct.rs

1use crate::{FieldList, SolIdent, Spanned, Type};
2use proc_macro2::Span;
3use std::{
4    fmt,
5    hash::{Hash, Hasher},
6};
7use syn::{
8    braced,
9    parse::{Parse, ParseStream},
10    token::Brace,
11    Attribute, Result, Token,
12};
13
14/// A struct definition: `struct Foo { uint256 bar; }`.
15///
16/// Solidity reference:
17/// <https://docs.soliditylang.org/en/latest/grammar.html#a4.SolidityParser.structDefinition>
18#[derive(Clone)]
19pub struct ItemStruct {
20    pub attrs: Vec<Attribute>,
21    pub struct_token: Token![struct],
22    pub name: SolIdent,
23    pub brace_token: Brace,
24    pub fields: FieldList,
25}
26
27impl PartialEq for ItemStruct {
28    fn eq(&self, other: &Self) -> bool {
29        self.name == other.name && self.fields == other.fields
30    }
31}
32
33impl Eq for ItemStruct {}
34
35impl Hash for ItemStruct {
36    fn hash<H: Hasher>(&self, state: &mut H) {
37        self.name.hash(state);
38        self.fields.hash(state);
39    }
40}
41
42impl fmt::Display for ItemStruct {
43    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
44        write!(f, "struct {} {{ {} }}", self.name, self.fields)
45    }
46}
47
48impl fmt::Debug for ItemStruct {
49    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
50        f.debug_struct("ItemStruct")
51            .field("attrs", &self.attrs)
52            .field("name", &self.name)
53            .field("fields", &self.fields)
54            .finish()
55    }
56}
57
58impl Parse for ItemStruct {
59    fn parse(input: ParseStream<'_>) -> Result<Self> {
60        let content;
61        Ok(Self {
62            attrs: input.call(Attribute::parse_outer)?,
63            struct_token: input.parse()?,
64            name: input.parse()?,
65            brace_token: braced!(content in input),
66            fields: content.parse()?,
67        })
68    }
69}
70
71impl Spanned for ItemStruct {
72    fn span(&self) -> Span {
73        self.name.span()
74    }
75
76    fn set_span(&mut self, span: Span) {
77        self.struct_token = Token![struct](span);
78        self.name.set_span(span);
79        self.brace_token = Brace(span);
80    }
81}
82
83impl ItemStruct {
84    pub fn as_type(&self) -> Type {
85        let mut ty = Type::Tuple(self.fields.types().cloned().collect());
86        ty.set_span(self.span());
87        ty
88    }
89}
syn_solidity/item/struct.rs

syn_solidity/item/
struct.rs
