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|
use proc_macro2::TokenStream as TokenStream2;
use quote::quote;
use rtic_syntax::{ast::App, Context};
use syn::Ident;
use crate::{analyze::Analysis, check::Extra, codegen::util};
pub fn codegen(
spawner: Context,
name: &Ident,
app: &App,
analysis: &Analysis,
extra: &Extra,
) -> TokenStream2 {
let spawnee = &app.software_tasks[name];
let priority = spawnee.args.priority;
let write_instant = if app.uses_schedule() {
let instants = util::instants_ident(name);
Some(quote!(
#instants.get_unchecked_mut(usize::from(index)).as_mut_ptr().write(instant);
))
} else {
None
};
let t = util::spawn_t_ident(priority);
let fq = util::fq_ident(name);
let rq = util::rq_ident(priority);
let (dequeue, enqueue) = if spawner.is_init() {
(
quote!(#fq.dequeue()),
quote!(#rq.enqueue_unchecked((#t::#name, index));),
)
} else {
(
quote!((#fq { priority }.lock(|fq| fq.split().1.dequeue()))),
quote!((#rq { priority }.lock(|rq| {
rq.split().0.enqueue_unchecked((#t::#name, index))
}));),
)
};
let device = extra.device;
let enum_ = util::interrupt_ident();
let interrupt = &analysis.interrupts.get(&priority);
let pend = {quote!(
rtic::pend(#device::#enum_::#interrupt);
)
};
let (_, tupled, _, _) = util::regroup_inputs(&spawnee.inputs);
let inputs = util::inputs_ident(name);
quote!(
unsafe {
use rtic::Mutex as _;
let input = #tupled;
if let Some(index) = #dequeue {
#inputs.get_unchecked_mut(usize::from(index)).as_mut_ptr().write(input);
#write_instant
#enqueue
#pend
Ok(())
} else {
Err(input)
}
}
)
}
|
