diff options
Diffstat (limited to 'macros/src/codegen/local_resources_struct.rs')
| -rw-r--r-- | macros/src/codegen/local_resources_struct.rs | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/macros/src/codegen/local_resources_struct.rs b/macros/src/codegen/local_resources_struct.rs deleted file mode 100644 index 74bdbf8..0000000 --- a/macros/src/codegen/local_resources_struct.rs +++ /dev/null @@ -1,111 +0,0 @@ -use proc_macro2::TokenStream as TokenStream2; -use quote::quote; -use rtic_syntax::{ - ast::{App, TaskLocal}, - Context, -}; - -use crate::codegen::util; - -/// Generates local resources structs -pub fn codegen(ctxt: Context, needs_lt: &mut bool, app: &App) -> (TokenStream2, TokenStream2) { - let mut lt = None; - - let resources = match ctxt { - Context::Init => &app.init.args.local_resources, - Context::Idle => &app.idle.as_ref().unwrap().args.local_resources, - Context::HardwareTask(name) => &app.hardware_tasks[name].args.local_resources, - Context::SoftwareTask(name) => &app.software_tasks[name].args.local_resources, - }; - - let task_name = util::get_task_name(ctxt, app); - - let mut fields = vec![]; - let mut values = vec![]; - let mut has_cfgs = false; - - for (name, task_local) in resources { - let (cfgs, ty, is_declared) = match task_local { - TaskLocal::External => { - let r = app.local_resources.get(name).expect("UNREACHABLE"); - (&r.cfgs, &r.ty, false) - } - TaskLocal::Declared(r) => (&r.cfgs, &r.ty, true), - _ => unreachable!(), - }; - - has_cfgs |= !cfgs.is_empty(); - - let lt = if ctxt.runs_once() { - quote!('static) - } else { - lt = Some(quote!('a)); - quote!('a) - }; - - let mangled_name = if matches!(task_local, TaskLocal::External) { - util::static_local_resource_ident(name) - } else { - util::declared_static_local_resource_ident(name, &task_name) - }; - - let local_resource_doc = format!(" Local resource `{name}`"); - fields.push(quote!( - #[doc = #local_resource_doc] - #(#cfgs)* - pub #name: &#lt mut #ty - )); - - let expr = if is_declared { - // If the local resources is already initialized, we only need to access its value and - // not go through an `MaybeUninit` - quote!(&mut *#mangled_name.get_mut()) - } else { - quote!(&mut *(&mut *#mangled_name.get_mut()).as_mut_ptr()) - }; - - values.push(quote!( - #(#cfgs)* - #name: #expr - )); - } - - if lt.is_some() { - *needs_lt = true; - - // The struct could end up empty due to `cfg`s leading to an error due to `'a` being unused - if has_cfgs { - fields.push(quote!( - #[doc(hidden)] - pub __marker__: core::marker::PhantomData<&'a ()> - )); - - values.push(quote!(__marker__: core::marker::PhantomData)); - } - } - - let doc = format!(" Local resources `{}` has access to", ctxt.ident(app)); - let ident = util::local_resources_ident(ctxt, app); - let item = quote!( - #[allow(non_snake_case)] - #[allow(non_camel_case_types)] - #[doc = #doc] - pub struct #ident<#lt> { - #(#fields,)* - } - ); - - let constructor = quote!( - impl<#lt> #ident<#lt> { - #[inline(always)] - #[doc(hidden)] - pub unsafe fn new() -> Self { - #ident { - #(#values,)* - } - } - } - ); - - (item, constructor) -} |
