aboutsummaryrefslogtreecommitdiff
path: root/derive/src/lib.rs
blob: dc6e9feab4ef3fad38fe6bd5086ec7de786438f4 (plain)
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
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
use syn;

mod from;
mod network;
mod sync;
mod setters;

#[proc_macro_derive(NetworkList, attributes(network))]
pub fn network_list(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
    network::network_list(input)
}

#[proc_macro_derive(NetworkMap, attributes(network, quassel))]
pub fn network_map(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
    network::network_map(input)
}

#[proc_macro_derive(From, attributes(from))]
pub fn from(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
    from::from(input)
}

#[proc_macro_derive(Setters, attributes(quassel))]
pub fn setters(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
    setters::setters(input)
}

#[proc_macro]
pub fn sync(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
    sync::sync(input)
}

use darling::FromField;

#[derive(Debug, FromField)]
#[darling(attributes(quassel))]
struct QuasselField {
    ident: Option<syn::Ident>,
    ty: syn::Type,

    #[darling(default)]
    name: String,
}

impl QuasselField {
    pub fn parse(input: &syn::DeriveInput) -> Vec<QuasselField> {
        match &input.data {
            syn::Data::Struct(data) => match &data.fields {
                syn::Fields::Named(fields) => fields
                    .named
                    .iter()
                    .map(|field| QuasselField::from_field(field).expect("Could not parse quassel field"))
                    .collect(),
                _ => panic!("quassel: not a named field"),
            },
            _ => panic!("quassel: not a Struct"),
        }
    }
}