typed_html_macros/
lib.rs

1#![recursion_limit = "128"]
2#![cfg_attr(can_show_location_of_runtime_parse_error, feature(proc_macro_span))]
3
4extern crate proc_macro;
5
6use proc_macro::TokenStream;
7use proc_macro_hack::proc_macro_hack;
8
9mod config;
10mod declare;
11mod error;
12mod html;
13mod ident;
14mod lexer;
15mod map;
16mod parser;
17mod span;
18
19/// Construct a DOM tree.
20///
21/// See the crate documentation for [`typed_html`][typed_html].
22///
23/// [typed_html]: ../typed_html/index.html
24#[proc_macro_hack]
25pub fn html(input: TokenStream) -> TokenStream {
26    let stream = lexer::unroll_stream(input.into(), false);
27    let result = html::expand_html(&stream);
28    TokenStream::from(match result {
29        Err(err) => error::parse_error(&stream, &err),
30        Ok((node, ty)) => match node.into_token_stream(&ty) {
31            Err(err) => err,
32            Ok(success) => success,
33        },
34    })
35}
36
37/// Construct a Dodrio node.
38///
39/// See the crate documentation for [`typed_html`][typed_html].
40///
41/// [typed_html]: ../typed_html/index.html
42#[cfg(feature = "dodrio")]
43#[proc_macro_hack]
44pub fn dodrio(input: TokenStream) -> TokenStream {
45    let stream = lexer::unroll_stream(input.into(), false);
46    let result = html::expand_dodrio(&stream);
47    TokenStream::from(match result {
48        Err(err) => error::parse_error(&stream, &err),
49        Ok((bump, node)) => match node.into_dodrio_token_stream(&bump, false) {
50            Err(err) => err,
51            // Ok(success) => {println!("{}", success); panic!()},
52            Ok(success) => success,
53        },
54    })
55}
56
57/// This macro is used by `typed_html` internally to generate types and
58/// implementations for HTML elements.
59#[proc_macro]
60pub fn declare_elements(input: TokenStream) -> TokenStream {
61    let stream = lexer::keywordise(lexer::unroll_stream(input.into(), true));
62    let result = declare::expand_declare(&stream);
63    TokenStream::from(match result {
64        Err(err) => error::parse_error(&stream, &err),
65        Ok(decls) => {
66            let mut out = proc_macro2::TokenStream::new();
67            for decl in decls {
68                out.extend(decl.into_token_stream());
69            }
70            out
71        }
72    })
73}
typed_html_macros/lib.rs

typed_html_macros/
lib.rs
