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-rw-r--r--macros/src/codegen/local_resources.rs71
1 files changed, 71 insertions, 0 deletions
diff --git a/macros/src/codegen/local_resources.rs b/macros/src/codegen/local_resources.rs
new file mode 100644
index 00000000..a9ffa925
--- /dev/null
+++ b/macros/src/codegen/local_resources.rs
@@ -0,0 +1,71 @@
+use proc_macro2::TokenStream as TokenStream2;
+use quote::quote;
+use rtic_syntax::ast::App;
+
+use crate::{analyze::Analysis, check::Extra, codegen::util};
+
+/// Generates `local` variables and local resource proxies
+///
+/// I.e. the `static` variables and theirs proxies.
+pub fn codegen(
+ app: &App,
+ _analysis: &Analysis,
+ _extra: &Extra,
+) -> (
+ // mod_app -- the `static` variables behind the proxies
+ Vec<TokenStream2>,
+ // mod_resources -- the `resources` module
+ TokenStream2,
+) {
+ let mut mod_app = vec![];
+ // let mut mod_resources: _ = vec![];
+
+ // All local resources declared in the `#[local]' struct
+ for (name, res) in &app.local_resources {
+ let cfgs = &res.cfgs;
+ let ty = &res.ty;
+ let mangled_name = util::mark_internal_ident(&util::static_local_resource_ident(name));
+
+ let attrs = &res.attrs;
+ // late resources in `util::link_section_uninit`
+ let section = util::link_section_uninit();
+
+ // For future use
+ // let doc = format!(" RTIC internal: {}:{}", file!(), line!());
+ mod_app.push(quote!(
+ #[allow(non_upper_case_globals)]
+ // #[doc = #doc]
+ #[doc(hidden)]
+ #(#attrs)*
+ #(#cfgs)*
+ #section
+ static #mangled_name: rtic::RacyCell<core::mem::MaybeUninit<#ty>> = rtic::RacyCell::new(core::mem::MaybeUninit::uninit());
+ ));
+ }
+
+ // All declared `local = [NAME: TY = EXPR]` local resources
+ for (task_name, resource_name, task_local) in app.declared_local_resources() {
+ let cfgs = &task_local.cfgs;
+ let ty = &task_local.ty;
+ let expr = &task_local.expr;
+ let attrs = &task_local.attrs;
+
+ let mangled_name = util::mark_internal_ident(&util::declared_static_local_resource_ident(
+ resource_name,
+ &task_name,
+ ));
+
+ // For future use
+ // let doc = format!(" RTIC internal: {}:{}", file!(), line!());
+ mod_app.push(quote!(
+ #[allow(non_upper_case_globals)]
+ // #[doc = #doc]
+ #[doc(hidden)]
+ #(#attrs)*
+ #(#cfgs)*
+ static #mangled_name: rtic::RacyCell<#ty> = rtic::RacyCell::new(#expr);
+ ));
+ }
+
+ (mod_app, TokenStream2::new())
+}