syn_solidity/expr/
binary.rs

1use crate::{utils::ParseNested, Expr, Spanned};
2use proc_macro2::Span;
3use syn::{
4    parse::{Parse, ParseStream},
5    Result,
6};
7
8/// A binary operation: `a + b`, `a += b`.
9#[derive(Clone, Debug)]
10pub struct ExprBinary {
11    pub left: Box<Expr>,
12    pub op: BinOp,
13    pub right: Box<Expr>,
14}
15
16impl ParseNested for ExprBinary {
17    fn parse_nested(expr: Box<Expr>, input: ParseStream<'_>) -> Result<Self> {
18        Ok(Self { left: expr, op: input.parse()?, right: input.parse()? })
19    }
20}
21
22derive_parse!(ExprBinary);
23
24impl Spanned for ExprBinary {
25    fn span(&self) -> Span {
26        let span = self.left.span();
27        span.join(self.right.span()).unwrap_or(span)
28    }
29
30    fn set_span(&mut self, span: Span) {
31        self.left.set_span(span);
32        self.right.set_span(span);
33    }
34}
35
36op_enum! {
37    /// A binary operator: `+`, `+=`, `&`.
38    pub enum BinOp {
39        Le(<=),
40        Ge(>=),
41        Eq(==),
42        Neq(!=),
43        Or(||),
44        And(&&),
45
46        Assign(=),
47        AddAssign(+=),
48        SubAssign(-=),
49        MulAssign(*=),
50        DivAssign(/=),
51        RemAssign(%=),
52        BitAndAssign(&=),
53        BitOrAssign(|=),
54        BitXorAssign(^=),
55        SarAssign(>>>=) peek3,
56        ShlAssign(<<=),
57        ShrAssign(>>=),
58
59        Sar(>>>) peek3,
60        Shr(>>),
61        Shl(<<),
62        BitAnd(&),
63        BitOr(|),
64        BitXor(^),
65
66        Lt(<),
67        Gt(>),
68
69        Add(+),
70        Sub(-),
71        Pow(**) peek2,
72        Mul(*),
73        Div(/),
74        Rem(%),
75    }
76}
syn_solidity/expr/binary.rs

syn_solidity/expr/
binary.rs
