derive_jinja_renderer/
lib.rs

1mod all_events;
2mod context;
3mod event;
4
5use all_events::generate_all_events_fn;
6use context::generate_render_context_trait;
7use darling::{FromDeriveInput, FromField, FromVariant};
8use event::generate_event_trait;
9use proc_macro::TokenStream;
10use syn::{parse_macro_input, DeriveInput, Ident};
11
12#[derive(Debug, FromDeriveInput)]
13#[darling(attributes(template))]
14struct TemplateOptions {
15    ident: Ident,
16    generics: syn::Generics,
17    name: String,
18    #[darling(default)]
19    mime: Option<String>,
20}
21
22#[derive(Debug, FromDeriveInput)]
23#[darling(attributes(event), forward_attrs(template))]
24struct EventOptions {
25    ident: Ident,
26    generics: syn::Generics,
27    #[darling(default)]
28    name: String,
29    #[darling(default)]
30    receivers: String,
31    #[darling(default = "default_target")]
32    target: String,
33    #[darling(default = "default_swap")]
34    swap: String,
35    #[darling(default = "default_id_field")]
36    id_field: String,
37    #[darling(default = "default_id_prefix")]
38    id_prefix: String,
39    data: darling::ast::Data<EnumData, FieldData>,
40    attrs: Vec<syn::Attribute>,
41}
42
43#[derive(Debug, FromDeriveInput)]
44struct AllEventsOptions {
45    ident: Ident,
46    generics: syn::Generics,
47    vis: syn::Visibility,
48    data: darling::ast::Data<EnumData, darling::util::Ignored>,
49}
50
51#[derive(Debug, FromField)]
52struct FieldData {
53    ident: Option<syn::Ident>,
54    ty: syn::Type,
55}
56
57#[derive(Debug, FromVariant)]
58struct EnumData {
59    ident: syn::Ident,
60    fields: darling::ast::Fields<FieldData>,
61}
62
63#[proc_macro_derive(Template, attributes(template))]
64pub fn derive_template(input: TokenStream) -> TokenStream {
65    let input = parse_macro_input!(input as DeriveInput);
66    let options = TemplateOptions::from_derive_input(&input).expect("failed to parse input");
67    generate_render_context_trait(options).into()
68}
69
70#[proc_macro_derive(Event, attributes(event))]
71pub fn derive_event(input: TokenStream) -> TokenStream {
72    let input = parse_macro_input!(input as DeriveInput);
73    let options = EventOptions::from_derive_input(&input).expect("failed to parse input");
74    generate_event_trait(options).into()
75}
76
77#[proc_macro_derive(AllEvents)]
78pub fn derive_all_events(input: TokenStream) -> TokenStream {
79    let input = parse_macro_input!(input as DeriveInput);
80    let options = AllEventsOptions::from_derive_input(&input).expect("failed to parse input");
81    generate_all_events_fn(options).into()
82}
83
84fn default_swap() -> String {
85    "innerHTML".to_string()
86}
87
88fn default_target() -> String {
89    "dynamic".to_string()
90}
91
92fn default_id_field() -> String {
93    "id".to_string()
94}
95
96fn default_id_prefix() -> String {
97    "#id-".to_string()
98}
derive_jinja_renderer/lib.rs

derive_jinja_renderer/
lib.rs
