Templates
The zyn! macro is the core of zyn. It accepts a template and returns a zyn::TokenStream:
let tokens: zyn::TokenStream = zyn! {
pub struct {{ name }} {
@for (field in fields.iter()) {
{{ field.ident }}: {{ field.ty }},
}
}
};Everything outside {{ }} and @ directives passes through as literal tokens, just like quote!.
Syntax Overview
| Syntax | Purpose |
|---|---|
{{ expr }} | Interpolation — insert any ToTokens value |
{{ expr | pipe }} | Pipes — transform values (case conversion, formatting) |
@if / @for / @match | Control flow — conditionals, loops, pattern matching |
@element_name(props) | Element invocation — reusable template components |