syn_solidity/stmt/
while.rs

1use crate::{Expr, Spanned, Stmt};
2use proc_macro2::Span;
3use std::fmt;
4use syn::{
5    parse::{Parse, ParseStream},
6    token::Paren,
7    Result, Token,
8};
9
10/// A while statement: `while (i < 42) { ... }`.
11///
12/// <https://docs.soliditylang.org/en/latest/grammar.html#a4.SolidityParser.whileStatement>
13#[derive(Clone)]
14pub struct StmtWhile {
15    pub while_token: Token![while],
16    pub paren_token: Paren,
17    pub cond: Expr,
18    pub body: Box<Stmt>,
19}
20
21impl fmt::Debug for StmtWhile {
22    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
23        f.debug_struct("StmtWhile").field("cond", &self.cond).field("body", &self.body).finish()
24    }
25}
26
27impl Parse for StmtWhile {
28    fn parse(input: ParseStream<'_>) -> Result<Self> {
29        let content;
30        Ok(Self {
31            while_token: input.parse()?,
32            paren_token: syn::parenthesized!(content in input),
33            cond: content.parse()?,
34            body: input.parse()?,
35        })
36    }
37}
38
39impl Spanned for StmtWhile {
40    fn span(&self) -> Span {
41        let span = self.while_token.span;
42        span.join(self.body.span()).unwrap_or(span)
43    }
44
45    fn set_span(&mut self, span: Span) {
46        self.while_token.span = span;
47        self.body.set_span(span);
48    }
49}
syn_solidity/stmt/while.rs

syn_solidity/stmt/
while.rs
