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extern crate proc_macro;
use proc_macro::TokenStream;
use quote::quote;
use syn::{parse_macro_input, parse_quote, ItemFn};
#[proc_macro_attribute]
pub fn function(
_attr: TokenStream,
item: TokenStream,
) -> TokenStream {
let mut function = parse_macro_input!(item as ItemFn);
let instrumented_function_name = function.sig.ident.to_string();
let body = &function.block;
let new_body: syn::Block = parse_quote! {
{
#[cfg(feature = "profile-with-puffin")]
profiling::puffin::profile_function!();
#[cfg(feature = "profile-with-optick")]
profiling::optick::event!();
#[cfg(feature = "profile-with-tracing")]
let _fn_span = profiling::tracing::span!(tracing::Level::INFO, #instrumented_function_name);
#[cfg(feature = "profile-with-tracing")]
let _fn_span_entered = _fn_span.enter();
#[cfg(feature = "profile-with-tracy")]
let _tracy_span = profiling::tracy_client::Span::new(#instrumented_function_name, "", file!(), line!(), 0);
#[cfg(feature = "profile-with-superluminal")]
let _superluminal_guard = profiling::superluminal::SuperluminalGuard::new(#instrumented_function_name);
#body
}
};
function.block = Box::new(new_body);
(quote! {
#function
})
.into()
}