cgp_component_macro_lib/derive_component/
entry.rs

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
use std::collections::BTreeMap;

use syn::parse::{Parse, ParseStream};
use syn::punctuated::Punctuated;
use syn::token::{Colon, Comma};
use syn::{Ident, Type};

pub struct Entry {
    pub key: Ident,
    pub value: Type,
}

impl Parse for Entry {
    fn parse(input: ParseStream) -> syn::Result<Self> {
        let key = input.parse()?;
        let _colon: Colon = input.parse()?;
        let value = input.parse()?;

        Ok(Entry { key, value })
    }
}

pub struct Entries {
    pub entries: BTreeMap<Ident, Type>,
}

impl Parse for Entries {
    fn parse(input: ParseStream) -> syn::Result<Self> {
        let entry_list: Punctuated<Entry, Comma> = Punctuated::parse_terminated(input)?;

        let entries =
            BTreeMap::from_iter(entry_list.into_iter().map(|entry| (entry.key, entry.value)));

        Ok(Entries { entries })
    }
}