rama_http/protocols/html/
either_impls.rs

1//! [`IntoHtml`] impls for [`rama_core::combinators::Either`] and friends,
2//! so that `if`/`if let`/`match` branches with differing concrete types
3//! can still be returned from a template. The macros in
4//! `rama-http-macros` desugar `if`/`else if`/`else` chains into nested
5//! `Either*` values.
6
7use super::core::IntoHtml;
8
9macro_rules! impl_into_html_either {
10    ($id:ident, $($param:ident),+ $(,)?) => {
11        impl<$($param,)+> IntoHtml for ::rama_core::combinators::$id<$($param,)+>
12        where
13            $($param: IntoHtml,)+
14        {
15            #[inline]
16            fn into_html(self) -> impl IntoHtml {
17                match self {
18                    $(
19                        Self::$param(value) => ::rama_core::combinators::$id::$param(value.into_html()),
20                    )+
21                }
22            }
23
24            #[inline]
25            fn escape_and_write(self, buf: &mut String) {
26                match self {
27                    $( Self::$param(value) => value.escape_and_write(buf), )+
28                }
29            }
30
31            #[inline]
32            fn size_hint(&self) -> usize {
33                match self {
34                    $( Self::$param(value) => value.size_hint(), )+
35                }
36            }
37        }
38    };
39}
40
41::rama_core::combinators::impl_either!(impl_into_html_either);
rama_http/protocols/html/either_impls.rs

rama_http/protocols/html/
either_impls.rs
