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|
use proc_macro2::TokenStream as TokenStream2;
use quote::quote;
use rtic_syntax::{ast::App, Context};
use crate::{
analyze::Analysis,
check::Extra,
codegen::{local_resources_struct, module, shared_resources_struct},
};
/// Generates support code for `#[idle]` functions
pub fn codegen(
app: &App,
analysis: &Analysis,
extra: &Extra,
) -> (
// mod_app_idle -- the `${idle}Resources` constructor
Option<TokenStream2>,
// root_idle -- items that must be placed in the root of the crate:
// - the `${idle}Locals` struct
// - the `${idle}Resources` struct
// - the `${idle}` module, which contains types like `${idle}::Context`
Vec<TokenStream2>,
// user_idle
Option<TokenStream2>,
// call_idle
TokenStream2,
) {
if let Some(idle) = &app.idle {
let mut needs_lt = false;
let mut mod_app = None;
let mut root_idle = vec![];
let name = &idle.name;
if !idle.args.shared_resources.is_empty() {
let (item, constructor) = shared_resources_struct::codegen(Context::Idle, &mut needs_lt, app);
root_idle.push(item);
mod_app = Some(constructor);
}
// TODO: Fix locals
// if !idle.locals.is_empty() {
// let (locals, pat) = locals::codegen(Context::Idle, &idle.locals, app);
// locals_new = Some(quote!(#name::Locals::new()));
// locals_pat = Some(pat);
// root_idle.push(locals);
// }
root_idle.push(module::codegen(
Context::Idle,
needs_lt,
app,
analysis,
extra,
));
let attrs = &idle.attrs;
let context = &idle.context;
let stmts = &idle.stmts;
let user_idle = Some(quote!(
#(#attrs)*
#[allow(non_snake_case)]
fn #name(#context: #name::Context) -> ! {
use rtic::Mutex as _;
use rtic::mutex_prelude::*;
#(#stmts)*
}
));
let call_idle = quote!(#name(
#name::Context::new(&rtic::export::Priority::new(0))
));
(mod_app, root_idle, user_idle, call_idle)
} else {
(
None,
vec![],
None,
quote!(loop {
rtic::export::wfi()
}),
)
}
}
|
