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use proc_macro::TokenStream;
use quote::quote;
use syn::{parse_macro_input, parse_str, Block, ItemFn};
#[proc_macro_attribute]
pub fn test(_attr: TokenStream, input: TokenStream) -> TokenStream {
let mut input = parse_macro_input!(input as ItemFn);
let test_name = input.sig.ident.to_string();
input.block.stmts.insert(
0,
parse_str(&format!(
r#"
{{
#[cfg(all(target_arch = "wasm32", target_os = "unknown"))]
console_error_panic_hook::set_once();
#[cfg(all(target_arch = "wasm32", target_os = "unknown"))]
web_sys::console::debug_1(&format!("Running {{}}::{0}", module_path!()).into());
#[cfg(any(target_os = "wasi", not(target_arch = "wasm32")))]
eprintln!("Running {{}}::{0}", module_path!());
}}
"#,
test_name
))
.unwrap(),
);
let expanded = if input.sig.asyncness.is_some() {
let mut wasm_input = input.clone();
wasm_input.sig.asyncness = None;
let stmts = wasm_input.block.stmts;
let wrapper: TokenStream = quote! {
{
let result = wasm_rs_async_executor::single_threaded::run(Some(wasm_rs_async_executor::single_threaded::spawn(async { #(#stmts)* }).task()));
wasm_rs_async_executor::single_threaded::evict_all();
result
}
}
.into();
wasm_input.block = Box::new(parse_macro_input!(wrapper as Block));
quote! {
#[cfg(not(target_arch = "wasm32"))]
#[tokio::test]
#input
#[cfg(target_os = "wasi")]
#[test]
#wasm_input
#[cfg(all(target_arch = "wasm32", target_os = "unknown"))]
#[wasm_bindgen_test::wasm_bindgen_test]
#wasm_input
}
} else {
quote! {
#[cfg(any(target_os = "wasi", not(target_arch = "wasm32")))]
#[test]
#input
#[cfg(all(target_arch = "wasm32", target_os = "unknown"))]
#[wasm_bindgen_test::wasm_bindgen_test]
#input
}
};
TokenStream::from(expanded)
}