pagetop/helpers/pagetop-macros/src/lib.rs

54 lines
1.4 KiB
Rust

mod smart_default;
use proc_macro::TokenStream;
use quote::quote;
use syn::{parse_macro_input, DeriveInput};
#[proc_macro_derive(AutoDefault, attributes(default))]
pub fn derive_auto_default(input: TokenStream) -> TokenStream {
let input = parse_macro_input!(input as DeriveInput);
match smart_default::body_impl::impl_my_derive(&input) {
Ok(output) => output.into(),
Err(error) => error.to_compile_error().into(),
}
}
/// Marks async main function as the `PageTop` entry-point.
///
/// # Examples
/// ```
/// #[pagetop::main]
/// async fn main() {
/// async { println!("Hello world"); }.await
/// }
/// ```
#[proc_macro_attribute]
pub fn main(_: TokenStream, item: TokenStream) -> TokenStream {
let mut output: TokenStream = (quote! {
#[::pagetop::service::rt::main(system = "::pagetop::service::rt::System")]
})
.into();
output.extend(item);
output
}
/// Marks async test functions to use the `PageTop` entry-point.
///
/// # Examples
/// ```
/// #[pagetop::test]
/// async fn test() {
/// assert_eq!(async { "Hello world" }.await, "Hello world");
/// }
/// ```
#[proc_macro_attribute]
pub fn test(_: TokenStream, item: TokenStream) -> TokenStream {
let mut output: TokenStream = (quote! {
#[::pagetop::service::rt::test(system = "::pagetop::service::rt::System")]
})
.into();
output.extend(item);
output
}