Add rtic-timer (timerqueue + monotonic) and rtic-monotonics (systick-monotonic)

rtic/macros/src/syntax/parse/resource.rs

@@ -0,0 +1,55 @@
+use proc_macro2::Span;
+use syn::{parse, Field, Visibility};
+
+use crate::syntax::parse::util::FilterAttrs;
+use crate::syntax::{
+    ast::{LocalResource, SharedResource, SharedResourceProperties},
+    parse::util,
+};
+
+impl SharedResource {
+    pub(crate) fn parse(item: &Field, span: Span) -> parse::Result<Self> {
+        if item.vis != Visibility::Inherited {
+            return Err(parse::Error::new(
+                span,
+                "this field must have inherited / private visibility",
+            ));
+        }
+
+        let FilterAttrs {
+            cfgs,
+            mut attrs,
+            docs,
+        } = util::filter_attributes(item.attrs.clone());
+
+        let lock_free = util::extract_lock_free(&mut attrs)?;
+
+        Ok(SharedResource {
+            cfgs,
+            attrs,
+            docs,
+            ty: Box::new(item.ty.clone()),
+            properties: SharedResourceProperties { lock_free },
+        })
+    }
+}
+
+impl LocalResource {
+    pub(crate) fn parse(item: &Field, span: Span) -> parse::Result<Self> {
+        if item.vis != Visibility::Inherited {
+            return Err(parse::Error::new(
+                span,
+                "this field must have inherited / private visibility",
+            ));
+        }
+
+        let FilterAttrs { cfgs, attrs, docs } = util::filter_attributes(item.attrs.clone());
+
+        Ok(LocalResource {
+            cfgs,
+            attrs,
+            docs,
+            ty: Box::new(item.ty.clone()),
+        })
+    }
+}