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authorGravatar Emil Fresk <emil.fresk@gmail.com> 2021-07-05 21:40:01 +0200
committerGravatar Emil Fresk <emil.fresk@gmail.com> 2021-07-05 21:40:01 +0200
commit3f85cb5caf1ae930e6551e139978ceec859a2348 (patch)
tree8c29ac6fa1095f33cf984d2565e2e7bea9504566 /macros/src/codegen/resources_struct.rs
parent13dc3992e616d817e38c167c4b47db816855f18b (diff)
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Started work
Diffstat (limited to 'macros/src/codegen/resources_struct.rs')
-rw-r--r--macros/src/codegen/resources_struct.rs141
1 files changed, 0 insertions, 141 deletions
diff --git a/macros/src/codegen/resources_struct.rs b/macros/src/codegen/resources_struct.rs
deleted file mode 100644
index 6fe4678a..00000000
--- a/macros/src/codegen/resources_struct.rs
+++ /dev/null
@@ -1,141 +0,0 @@
-use proc_macro2::TokenStream as TokenStream2;
-use quote::quote;
-use rtic_syntax::{ast::App, Context};
-
-use crate::codegen::util;
-
-pub fn codegen(ctxt: Context, needs_lt: &mut bool, app: &App) -> (TokenStream2, TokenStream2) {
- let mut lt = None;
-
- let resources = match ctxt {
- Context::Init => &app.inits.first().unwrap().args.resources,
- Context::Idle => &app.idles.first().unwrap().args.resources,
- Context::HardwareTask(name) => &app.hardware_tasks[name].args.resources,
- Context::SoftwareTask(name) => &app.software_tasks[name].args.resources,
- };
-
- let mut fields = vec![];
- let mut values = vec![];
- let mut has_cfgs = false;
-
- for (name, access) in resources {
- let (res, expr) = app.resource(name).expect("UNREACHABLE");
-
- let cfgs = &res.cfgs;
- has_cfgs |= !cfgs.is_empty();
-
- // access hold if the resource is [x] (exclusive) or [&x] (shared)
- let mut_ = if access.is_exclusive() {
- Some(quote!(mut))
- } else {
- None
- };
- let ty = &res.ty;
- let mangled_name = util::mark_internal_ident(&name);
-
- // let ownership = &analysis.ownerships[name];
- let r_prop = &res.properties;
-
- if !r_prop.task_local && !r_prop.lock_free {
- if access.is_shared() {
- lt = Some(quote!('a));
-
- fields.push(quote!(
- #(#cfgs)*
- pub #name: &'a #ty
- ));
- } else {
- // Resource proxy
- lt = Some(quote!('a));
-
- fields.push(quote!(
- #(#cfgs)*
- pub #name: resources::#name<'a>
- ));
-
- values.push(quote!(
- #(#cfgs)*
- #name: resources::#name::new(priority)
-
- ));
-
- // continue as the value has been filled,
- continue;
- }
- } else {
- let lt = if ctxt.runs_once() {
- quote!('static)
- } else {
- lt = Some(quote!('a));
- quote!('a)
- };
-
- fields.push(quote!(
- #(#cfgs)*
- pub #name: &#lt #mut_ #ty
- ));
- }
-
- let is_late = expr.is_none();
- if is_late {
- let expr = if access.is_exclusive() {
- quote!(&mut *#mangled_name.get_mut_unchecked().as_mut_ptr())
- } else {
- quote!(&*#mangled_name.get_unchecked().as_ptr())
- };
-
- values.push(quote!(
- #(#cfgs)*
- #name: #expr
- ));
- } else {
- values.push(quote!(
- #(#cfgs)*
- #name: #mangled_name.get_mut_unchecked()
- ));
- }
- }
-
- 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!("Resources `{}` has access to", ctxt.ident(app));
- let ident = util::resources_ident(ctxt, app);
- let ident = util::mark_internal_ident(&ident);
- let item = quote!(
- #[allow(non_snake_case)]
- #[doc = #doc]
- pub struct #ident<#lt> {
- #(#fields,)*
- }
- );
-
- let arg = if ctxt.is_init() {
- None
- } else {
- Some(quote!(priority: &#lt rtic::export::Priority))
- };
- let constructor = quote!(
- impl<#lt> #ident<#lt> {
- #[inline(always)]
- pub unsafe fn new(#arg) -> Self {
- #ident {
- #(#values,)*
- }
- }
- }
- );
-
- (item, constructor)
-}