Macro handlebars::handlebars_helper [−][src]
macro_rules! handlebars_helper { ($struct_name:ident: |$($name:ident: $tpe:tt),*| $body:expr ) => { ... }; (@as_json_value $x:ident, object) => { ... }; (@as_json_value $x:ident, array) => { ... }; (@as_json_value $x:ident, str) => { ... }; (@as_json_value $x:ident, i64) => { ... }; (@as_json_value $x:ident, u64) => { ... }; (@as_json_value $x:ident, f64) => { ... }; (@as_json_value $x:ident, bool) => { ... }; (@as_json_value $x:ident, null) => { ... }; }
Macro that allows you to quickly define a handlebars helper by passing a name and a closure.
Examples
#[macro_use] extern crate handlebars; #[macro_use] extern crate serde_json; handlebars_helper!(is_above_10: |x: u64| x > 10); let mut handlebars = handlebars::Handlebars::new(); handlebars.register_helper("is-above-10", Box::new(is_above_10)); let result = handlebars .render_template("{{#if (is-above-10 12)}}great!{{else}}okay{{/if}}", &json!({})) .unwrap(); assert_eq!(&result, "great!");