kosame_macro 0.0.1

Macro-based Rust ORM focused on developer ergonomics
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37

use syn::parse::{Parse, ParseStream};

use crate::expr::Expr;

mod kw {
    use syn::custom_keyword;

    custom_keyword!(offset);
}

pub struct Offset {
    _offset: kw::offset,
    expr: Expr,
}

impl Offset {
    pub fn expr(&self) -> &Expr {
        &self.expr
    }

    pub fn parse_optional(input: ParseStream) -> syn::Result<Option<Self>> {
        Self::peek(input).then(|| input.parse()).transpose()
    }

    pub fn peek(input: ParseStream) -> bool {
        input.peek(kw::offset)
    }
}

impl Parse for Offset {
    fn parse(input: ParseStream) -> syn::Result<Self> {
        Ok(Self {
            _offset: input.parse()?,
            expr: input.parse()?,
        })
    }
}