update the cfail tests

Cargo.toml

@@ -24,6 +24,7 @@ compiletest_rs = "0.3.5"
 [dev-dependencies]
 panic-abort = "0.1.1"
 panic-itm = "0.1.0"
+typenum = "1.10.0"
 
 [dev-dependencies.stm32f103xx]
 features = ["rt"]

macros/src/trans.rs

@@ -59,13 +59,13 @@ pub fn app(ctxt: &Context, app: &App) -> Tokens {
         });
 
         resources.push(quote! {
-            pub struct #name { _0: () }
+            pub struct #name { _not_send_or_sync: PhantomData<*const ()> }
 
             #[allow(dead_code)]
             #[allow(unsafe_code)]
             impl #name {
                 pub unsafe fn new() -> Self {
-                    #name { _0: () }
+                    #name { _not_send_or_sync: PhantomData }
                 }
             }
         });
@@ -75,6 +75,9 @@ pub fn app(ctxt: &Context, app: &App) -> Tokens {
         mod __resource {
             extern crate #krate;
 
+            #[allow(unused_imports)]
+            use core::marker::PhantomData;
+
             #(#resources)*
         }
     });
@@ -776,16 +779,26 @@ pub fn app(ctxt: &Context, app: &App) -> Tokens {
         .resources
         .iter()
         .map(|res| {
-            let ty = &app.resources[res].ty;
+            if ctxt.ceilings.resources()[res].is_owned() {
+                let ty = &app.resources[res].ty;
 
-            quote!(pub #res: &'static mut #ty)
+                quote!(pub #res: &'static mut #ty)
+            } else {
+                quote!(pub #res: __resource::#res)
+            }
         })
         .collect::<Vec<_>>();
 
     let res_exprs = app.idle
         .resources
         .iter()
-        .map(|res| quote!(#res: __resource::#res::get()))
+        .map(|res| {
+            if ctxt.ceilings.resources()[res].is_owned() {
+                quote!(#res: __resource::#res::get())
+            } else {
+                quote!(#res: __resource::#res::new())
+            }
+        })
         .collect::<Vec<_>>();
 
     root.push(quote! {
@@ -797,6 +810,7 @@ pub fn app(ctxt: &Context, app: &App) -> Tokens {
 
             pub struct Context {
                 pub resources: Resources,
+                pub threshold: #krate::Threshold<#krate::U0>,
             }
 
             #[allow(unsafe_code)]
@@ -804,6 +818,7 @@ pub fn app(ctxt: &Context, app: &App) -> Tokens {
                 pub unsafe fn new() -> Self {
                     Context {
                         resources: Resources::new(),
+                        threshold: #krate::Threshold::new(),
                     }
                 }
             }
@@ -829,6 +844,7 @@ pub fn app(ctxt: &Context, app: &App) -> Tokens {
     let init = &app.init.path;
     root.push(quote! {
         #[allow(unsafe_code)]
+        #[deny(const_err)]
         fn main() {
             #[allow(unused_imports)]
             use #hidden::#krate::Resource;

src/lib.rs

@@ -91,6 +91,25 @@ impl Core {
     }
 }
 
+pub fn atomic<R, P, F>(t: &mut Threshold<P>, f: F) -> R
+where
+    F: FnOnce(&mut Threshold<U255>) -> R,
+    P: Unsigned,
+{
+    unsafe {
+        debug_assert!(P::to_u8() <= 255);
+
+        if P::to_u8() < 255 {
+            interrupt::disable();
+            let r = f(&mut Threshold::new());
+            interrupt::enable();
+            r
+        } else {
+            f(&mut Threshold::new())
+        }
+    }
+}
+
 #[doc(hidden)]
 pub const unsafe fn uninitialized<T>() -> T {
     #[allow(unions_with_drop_fields)]
@@ -102,6 +121,7 @@ pub const unsafe fn uninitialized<T>() -> T {
     U { none: () }.some
 }
 
+#[doc(hidden)]
 pub unsafe fn set_pending<I>(interrupt: I)
 where
     I: Nr,

src/resource.rs

@@ -3,7 +3,8 @@ use core::marker::PhantomData;
 #[cfg(not(armv6m))]
 use cortex_m::register::basepri;
 
-use typenum::{Max, Maximum, Unsigned};
+use typenum::type_operators::IsGreaterOrEqual;
+use typenum::{Max, Maximum, True, Unsigned};
 
 pub struct Threshold<N>
 where
@@ -34,11 +35,17 @@ pub unsafe trait Resource {
     #[doc(hidden)]
     unsafe fn get() -> &'static mut Self::Data;
 
-    fn borrow<'cs>(&'cs self, _t: &'cs Threshold<Self::Ceiling>) -> &'cs Self::Data {
+    fn borrow<'cs, P>(&'cs self, _t: &'cs Threshold<P>) -> &'cs Self::Data
+    where
+        P: IsGreaterOrEqual<Self::Ceiling, Output = True> + Unsigned,
+    {
         unsafe { Self::get() }
     }
 
-    fn borrow_mut<'cs>(&'cs mut self, _t: &'cs Threshold<Self::Ceiling>) -> &'cs mut Self::Data {
+    fn borrow_mut<'cs, P>(&'cs mut self, _t: &'cs Threshold<P>) -> &'cs mut Self::Data
+    where
+        P: IsGreaterOrEqual<Self::Ceiling, Output = True> + Unsigned,
+    {
         unsafe { Self::get() }
     }
 

tests/cfail/critical-section.rs

@@ -5,9 +5,10 @@
 #![no_std]
 
 extern crate cortex_m_rtfm as rtfm;
+extern crate panic_abort;
 extern crate stm32f103xx;
 
-use rtfm::{app, Resource, Threshold};
+use rtfm::{app, Resource};
 
 app! {
     device: stm32f103xx,
@@ -21,23 +22,27 @@ app! {
     },
 
     tasks: {
-        EXTI0: {
+        exti0: {
-            path: exti0,
+            interrupt: EXTI0,
-            priority: 1,
             resources: [ON],
         },
     },
 }
 
-fn init(_p: init::Peripherals, _r: init::Resources) {}
+fn init(_ctxt: init::Context) -> init::LateResources {
+    init::LateResources {}
+}
+
+fn idle(mut ctxt: idle::Context) -> ! {
+    let t = &mut ctxt.threshold;
+    let on = ctxt.resources.ON;
 
-fn idle(t: &mut Threshold, r: idle::Resources) -> ! {
     let state = rtfm::atomic(t, |t| {
         // ERROR borrow can't escape this *global* critical section
-        r.ON.borrow(t) //~ error cannot infer an appropriate lifetime
+        on.borrow(t) //~ error cannot infer an appropriate lifetime
     });
 
-    let state = r.ON.claim(t, |state, _t| {
+    let state = on.claim(t, |state, _t| {
         // ERROR borrow can't escape this critical section
         state //~ error cannot infer an appropriate lifetime
     });
@@ -45,4 +50,4 @@ fn idle(t: &mut Threshold, r: idle::Resources) -> ! {
     loop {}
 }
 
-fn exti0(_t: &mut Threshold, _r: EXTI0::Resources) {}
+fn exti0(_ctxt: exti0::Context) {}

tests/cfail/duplicated-task.rs

@@ -8,21 +8,22 @@ extern crate stm32f103xx;
 
 use rtfm::app;
 
-app! {
+app! { //~ error proc macro panicked
-    //~^ error proc macro panicked
     device: stm32f103xx,
 
     tasks: {
-        SYS_TICK: {
+        a: {
+            interrupt: EXTI0, //~ error this interrupt is already bound to another task
             priority: 1,
         },
 
-        SYS_TICK: {
+        b: {
+            interrupt: EXTI0,
             priority: 2,
         },
     },
 }
 
-fn init(_p: init::Peripherals) {}
+fn init(_ctxt: init::Context) -> init::LateResources {}
 
-fn idle() -> ! {}
+fn idle(_ctxt: idle::Context) -> ! {}

tests/cfail/exception.rs

@@ -4,24 +4,27 @@
 #![no_std]
 
 extern crate cortex_m_rtfm as rtfm;
+extern crate panic_abort;
 extern crate stm32f103xx;
 
 use rtfm::app;
 
 app! { //~ error proc macro panicked
-    device: stm32f103xx,
+    device: stm32f103xx, //~ no variant named `SYS_TICK` found for type `stm32f103xx::Interrupt`
 
     tasks: {
-        // ERROR exceptions can't be enabled / disabled here
+        sys_tick: {
-        SYS_TICK: {
+            interrupt: SYS_TICK, // ERROR can't bind to exception
-            enabled: true,
-            priority: 1,
         },
     },
 }
 
-fn init(_p: init::Peripherals) {}
+fn init(_ctxt: init::Context) -> init::LateResources {
+    init::LateResources {}
+}
 
-fn idle() -> ! {
+fn idle(_ctxt: idle::Context) -> ! {
     loop {}
 }
+
+fn sys_tick(_ctxt: sys_tick::Context) {}

tests/cfail/idle.rs

@@ -4,15 +4,18 @@
 #![no_std]
 
 extern crate cortex_m_rtfm as rtfm;
+extern crate panic_abort;
 extern crate stm32f103xx;
 
 use rtfm::app;
 
-app! { //~ error mismatched types
+app! { //~ mismatched types
     device: stm32f103xx,
 }
 
-fn init(_p: init::Peripherals) {}
+fn init(_ctxt: init::Context) -> init::LateResources {
+    init::LateResources {}
+}
 
 // ERROR `idle` must be a diverging function
-fn idle() {}
+fn idle(_ctxt: idle::Context) {}

tests/cfail/init-resource-share-idle.rs

@@ -3,6 +3,7 @@
 #![no_std]
 
 extern crate cortex_m_rtfm as rtfm;
+extern crate panic_abort;
 extern crate stm32f103xx;
 
 use rtfm::app;
@@ -24,8 +25,10 @@ app! { //~ proc macro panicked
     },
 }
 
-fn init(_p: init::Peripherals, _r: init::Resources) {}
+fn init(_ctxt: init::Context) -> init::LateResources {
+    init::LateResources {}
+}
 
-fn idle(_r: init::Resources) -> ! {
+fn idle(_ctxt: idle::Context) -> ! {
     loop {}
 }

tests/cfail/init-resource-share-task.rs

@@ -1,8 +1,10 @@
+#![deny(unsafe_code)]
 #![deny(warnings)]
 #![feature(proc_macro)]
 #![no_std]
 
 extern crate cortex_m_rtfm as rtfm;
+extern crate panic_abort;
 extern crate stm32f103xx;
 
 use rtfm::app;
@@ -19,18 +21,20 @@ app! { //~ proc macro panicked
     },
 
     tasks: {
-        SYS_TICK: {
+        exti0: {
-            path: sys_tick,
+            interrupt: EXTI0,
             resources: [BUFFER],
             //~^ error: this resource is owned by `init` and can't be shared
         },
     },
 }
 
-fn init(_p: init::Peripherals) {}
+fn init(_ctxt: init::Context) -> init::LateResources {
+    init::LateResources {}
+}
 
-fn idle() -> ! {
+fn idle(_ctxt: idle::Context) -> ! {
     loop {}
 }
 
-fn sys_tick() {}
+fn exti0(_ctxt: exti0::Context) {}

tests/cfail/init.rs

@@ -4,17 +4,19 @@
 #![no_std]
 
 extern crate cortex_m_rtfm as rtfm;
+extern crate panic_abort;
 extern crate stm32f103xx;
 
 use rtfm::app;
 
-app! { //~ error mismatched types
+app! { //~ error incorrect number of function parameters
+    //~^ note expected type `fn(init::Context) -> _ZN4init13LateResourcesE`
     device: stm32f103xx,
 }
 
 // ERROR `init` must have signature `fn (init::Peripherals)`
 fn init() {}
 
-fn idle() -> ! {
+fn idle(_ctxt: idle::Context) -> ! {
     loop {}
 }

tests/cfail/interrupt.rs

@@ -4,24 +4,27 @@
 #![no_std]
 
 extern crate cortex_m_rtfm as rtfm;
+extern crate panic_abort;
 extern crate stm32f103xx;
 
 use rtfm::app;
 
-app! { //~ error no variant named `EXTI33` found for type
+app! { //~ error no variant named `EXTI33` found for type `stm32f103xx::Interrupt`
     device: stm32f103xx,
 
     tasks: {
-        EXTI33: {
+        exti33: {
-            path: exti33,
+            interrupt: EXTI33,
         },
     },
 }
 
-fn init(_p: init::Peripherals) {}
+fn init(_ctxt: init::Context) -> init::LateResources {
+    init::LateResources {}
+}
 
-fn idle() -> ! {
+fn idle(_ctxt: idle::Context) -> ! {
     loop {}
 }
 
-fn exti33() {}
+fn exti33(_ctxt: exti33::Context) {}

tests/cfail/late-resource-init.rs

@@ -4,9 +4,10 @@
 #![no_std]
 
 extern crate cortex_m_rtfm as rtfm;
+extern crate panic_abort;
 extern crate stm32f103xx;
 
-use rtfm::{app, Threshold};
+use rtfm::app;
 
 app! {
     device: stm32f103xx,
@@ -17,34 +18,32 @@ app! {
     },
 
     tasks: {
-        EXTI0: {
+        exti0: {
-            path: exti0,
+            interrupt: EXTI0,
-            priority: 1,
+            // priority: 1,
             resources: [A, LATE],
         },
 
-        EXTI1: {
+        exti1: {
-            path: exti1,
+            interrupt: EXTI1,
             priority: 2,
             resources: [A, LATE],
         },
     },
 }
 
-fn init(_p: init::Peripherals, r: init::Resources) -> init::LateResources {
+fn init(ctxt: init::Context) -> init::LateResources {
-    // Try to use a resource that's not yet initialized:
+    // Tried to use a resource that's not yet initialized:
-    r.LATE;
+    let _late = ctxt.resources.LATE;
-    //~^ error: no field `LATE`
+    //~^ error: no field `LATE` on type `init::Resources`
 
-    init::LateResources {
+    init::LateResources { LATE: 0 }
-        LATE: 0,
-    }
 }
 
-fn idle() -> ! {
+fn idle(_ctxt: idle::Context) -> ! {
     loop {}
 }
 
-fn exti0(_t: &mut Threshold, _r: EXTI0::Resources) {}
+fn exti0(_ctxt: exti0::Context) {}
 
-fn exti1(_t: &mut Threshold, _r: EXTI1::Resources) {}
+fn exti1(_ctxt: exti1::Context) {}

tests/cfail/lock.rs

@@ -5,9 +5,10 @@
 #![no_std]
 
 extern crate cortex_m_rtfm as rtfm;
+extern crate panic_abort;
 extern crate stm32f103xx;
 
-use rtfm::{app, Resource, Threshold};
+use rtfm::{app, Resource};
 
 app! {
     device: stm32f103xx,
@@ -15,54 +16,62 @@ app! {
     resources: {
         static ON: bool = false;
         static MAX: u8 = 0;
+        static OWNED: bool = false;
     },
 
     tasks: {
-        EXTI0: {
+        exti0: {
-            path: exti0,
+            interrupt: EXTI0,
-            priority: 1,
+            // priority: 1,
             resources: [MAX, ON],
         },
 
-        EXTI1: {
+        exti1: {
-            path: exti1,
+            interrupt: EXTI1,
             priority: 2,
-            resources: [ON],
+            resources: [ON, OWNED],
         },
 
-        EXTI2: {
+        exti2: {
-            path: exti2,
+            interrupt: EXTI2,
             priority: 16,
             resources: [MAX],
         },
     },
 }
 
-fn init(_p: init::Peripherals, _r: init::Resources) {}
+fn init(_ctxt: init::Context) -> init::LateResources {
+    init::LateResources {}
+}
 
-fn idle() -> ! {
+fn idle(_ctxt: idle::Context) -> ! {
     loop {}
 }
 
-fn exti0(mut t: &mut Threshold, mut r: EXTI0::Resources) {
+#[allow(non_snake_case)]
+fn exti0(mut ctxt: exti0::Context) {
+    let exti0::Resources { ON, mut MAX } = ctxt.resources;
+    let t = &mut ctxt.threshold;
+
     // ERROR need to lock to access the resource because priority < ceiling
-    if *r.ON {
+    {
-        //~^ error type `EXTI0::ON` cannot be dereferenced
+        let _on = ON.borrow(t);
+        //~^ error type mismatch resolving
     }
 
     // OK need to lock to access the resource
-    if r.ON.claim(&mut t, |on, _| *on) {}
+    if ON.claim(t, |on, _| *on) {}
 
     // OK can claim a resource with maximum ceiling
-    r.MAX.claim_mut(&mut t, |max, _| *max += 1);
+    MAX.claim_mut(t, |max, _| *max += 1);
 }
 
-fn exti1(mut t: &mut Threshold, r: EXTI1::Resources) {
+#[allow(non_snake_case)]
-    // OK to directly access the resource because priority == ceiling
+fn exti1(ctxt: exti1::Context) {
-    if *r.ON {}
+    let exti1::Resources { OWNED, .. } = ctxt.resources;
 
-    // though the resource can still be claimed -- the claim is a no-op
+    // OK to directly access the resource because this task is the only owner
-    if r.ON.claim(&mut t, |on, _| *on) {}
+    if *OWNED {}
 }
 
-fn exti2(_t: &mut Threshold, _r: EXTI2::Resources) {}
+fn exti2(_ctxt: exti2::Context) {}

tests/cfail/peripheral-alias.rs

@@ -1,28 +0,0 @@
-#![deny(unsafe_code)]
-#![deny(warnings)]
-#![feature(proc_macro)]
-#![no_std]
-
-extern crate cortex_m_rtfm as rtfm;
-extern crate stm32f103xx;
-
-use rtfm::app;
-
-app! { //~ error proc macro panicked
-    device: stm32f103xx,
-
-    tasks: {
-        EXTI0: {
-            enabled: true,
-            priority: 1,
-            // ERROR peripheral appears twice in this list
-            resources: [GPIOA, GPIOA],
-        },
-    },
-}
-
-fn init(_p: init::Peripherals) {}
-
-fn idle() -> ! {
-    loop {}
-}

tests/cfail/priority-too-high.rs

@@ -1,30 +1,30 @@
-#![deny(unsafe_code)]
-#![deny(warnings)]
 #![feature(proc_macro)]
 #![no_std]
 
 extern crate cortex_m_rtfm as rtfm;
+extern crate panic_abort;
 extern crate stm32f103xx;
 
 use rtfm::app;
 
 app! { //~ error attempt to subtract with overflow
-    //~^ error constant evaluation error
     device: stm32f103xx,
 
     tasks: {
-        SYS_TICK: {
+        exti0: {
-            path: sys_tick,
+            interrupt: EXTI0,
             // ERROR priority must be in the range [1, 16]
             priority: 17,
         },
     },
 }
 
-fn init(_p: init::Peripherals) {}
+fn init(_ctxt: init::Context) -> init::LateResources {
+    init::LateResources {}
+}
 
-fn idle() -> ! {
+fn idle(_ctxt: idle::Context) -> ! {
     loop {}
 }
 
-fn sys_tick() {}
+fn exti0(_ctxt: exti0::Context) {}

tests/cfail/priority-too-low.rs

@@ -4,27 +4,26 @@
 #![no_std]
 
 extern crate cortex_m_rtfm as rtfm;
+extern crate panic_abort;
 extern crate stm32f103xx;
 
 use rtfm::app;
 
-app! { //~ error attempt to subtract with overflow
+app! {
-    //~^ error constant evaluation error
     device: stm32f103xx,
 
     tasks: {
-        SYS_TICK: {
+        exti0: {
-            path: sys_tick,
+            interrupt: EXTI0,
-            // ERROR priority must be in the range [1, 16]
+            priority: 0, //~ error this value is outside the valid range of `(1, 255)`
-            priority: 0,
         },
     },
 }
 
-fn init(_p: init::Peripherals) {}
+fn init(_ctxt: init::Context) -> init::LateResources {}
 
-fn idle() -> ! {
+fn idle(_ctxt: idle::Context) -> ! {
     loop {}
 }
 
-fn sys_tick() {}
+fn exti0(_ctxt: exti0::Context) {}

tests/cfail/resource-alias.rs

@@ -4,6 +4,7 @@
 #![no_std]
 
 extern crate cortex_m_rtfm as rtfm;
+extern crate panic_abort;
 extern crate stm32f103xx;
 
 use rtfm::app;
@@ -12,21 +13,23 @@ app! { //~ error proc macro panicked
     device: stm32f103xx,
 
     resources: {
-        // resource `MAX` listed twice
+        static MAX: u8 = 0;
-        MAX: u8 = 0;
+        static MAX: u16 = 0; //~ error this resource name appears more than once in this list
-        MAX: u16 = 0;
     },
 
     tasks: {
-        EXTI0: {
+        exti0: {
-            enabled: true,
+            interrupt: EXTI0,
-            priority: 1,
+            resources: [
+                MAX,
+                MAX, //~ error this resource name appears more than once in this list
+            ],
         },
     },
 }
 
-fn init(_p: init::Peripherals) {}
+fn init(_ctxt: init::Context) -> init::LateResources {}
 
-fn idle() -> ! {
+fn idle(_ctxt: idle::Context) -> ! {
     loop {}
 }

tests/cfail/resource-not-send-sync.rs

@@ -1,13 +1,13 @@
 #![deny(unsafe_code)]
 #![deny(warnings)]
-#![feature(const_fn)]
 #![feature(proc_macro)]
 #![no_std]
 
 extern crate cortex_m_rtfm as rtfm;
+extern crate panic_abort;
 extern crate stm32f103xx;
 
-use rtfm::{app, Threshold};
+use rtfm::app;
 
 app! {
     device: stm32f103xx,
@@ -17,38 +17,47 @@ app! {
     },
 
     tasks: {
-        EXTI0: {
+        exti0: {
-            path: exti0,
+            interrupt: EXTI0,
-            priority: 1,
+            // priority: 1,
             resources: [SHARED],
         },
 
-        EXTI1: {
+        exti1: {
-            path: exti1,
+            interrupt: EXTI1,
             priority: 2,
             resources: [SHARED],
         },
     },
 }
 
-fn init(_p: init::Peripherals, _r: init::Resources) {}
+fn init(_ctxt: init::Context) -> init::LateResources {
+    init::LateResources {}
+}
 
-fn idle() -> ! {
+fn idle(_ctxt: idle::Context) -> ! {
     loop {}
 }
 
-fn is_send<T>(_: &T) where T: Send {}
+fn is_send<T>(_: &T)
-fn is_sync<T>(_: &T) where T: Sync {}
+where
+    T: Send,
+{
+}
+fn is_sync<T>(_: &T)
+where
+    T: Sync,
+{
+}
 
-fn exti0(_t: &mut Threshold, r: EXTI0::Resources) {
+fn exti0(ctxt: exti0::Context) {
     // ERROR resource proxies can't be shared between tasks
-    is_sync(&r.SHARED);
+    is_sync(&ctxt.resources.SHARED);
     //~^ error `*const ()` cannot be shared between threads safely
 
     // ERROR resource proxies are not `Send`able across tasks
-    is_send(&r.SHARED);
+    is_send(&ctxt.resources.SHARED);
     //~^ error the trait bound `*const (): core::marker::Send` is not satisfied
 }
 
-fn exti1(_t: &mut Threshold, _r: EXTI1::Resources) {
+fn exti1(_ctxt: exti1::Context) {}
-}

tests/cfail/token-outlive.rs

@@ -1,13 +1,13 @@
 #![deny(unsafe_code)]
 #![deny(warnings)]
-#![feature(const_fn)]
 #![feature(proc_macro)]
 #![no_std]
 
 extern crate cortex_m_rtfm as rtfm;
+extern crate panic_abort;
 extern crate stm32f103xx;
 
-use rtfm::{app, Resource, Threshold};
+use rtfm::{app, Resource};
 
 app! {
     device: stm32f103xx,
@@ -17,30 +17,33 @@ app! {
     },
 
     tasks: {
-        EXTI0: {
+        exti0: {
-            path: exti0,
+            interrupt: EXTI0,
-            priority: 1,
+            // priority: 1,
             resources: [STATE],
         },
 
-        EXTI1: {
+        exti1: {
-            path: exti1,
+            interrupt: EXTI1,
             priority: 2,
             resources: [STATE],
         },
     },
 }
 
-fn init(_p: init::Peripherals, _r: init::Resources) {}
+fn init(_ctxt: init::Context) -> init::LateResources {
+    init::LateResources {}
+}
 
-fn idle() -> ! {
+fn idle(_ctxt: idle::Context) -> ! {
     loop {}
 }
 
-fn exti0(mut t: &mut Threshold, r: EXTI0::Resources) {
+fn exti0(ctxt: exti0::Context) {
     // ERROR token should not outlive the critical section
-    let t = r.STATE.claim(&mut t, |_state, t| t);
+    let t = &mut ctxt.threshold;
+    let t = ctxt.resources.STATE.claim(t, |_state, t| t);
     //~^ error cannot infer an appropriate lifetime
 }
 
-fn exti1(_t: &mut Threshold, _r: EXTI1::Resources) {}
+fn exti1(_ctxt: exti1::Context) {}

tests/cfail/token-transfer.rs

@@ -5,15 +5,18 @@
 #![no_std]
 
 extern crate cortex_m_rtfm as rtfm;
+extern crate panic_abort;
 extern crate stm32f103xx;
+extern crate typenum;
 
 use rtfm::{app, Threshold};
+use typenum::consts::U1;
 
 app! { //~ error bound `*const (): core::marker::Send` is not satisfied
     device: stm32f103xx,
 
     resources: {
-        static TOKEN: Option<Threshold> = None;
+        static TOKEN: Option<Threshold<U1>> = None;
     },
 
     idle: {
@@ -21,17 +24,17 @@ app! { //~ error bound `*const (): core::marker::Send` is not satisfied
     },
 
     tasks: {
-        EXTI0: {
+        exti0: {
-            path: exti0,
+            interrupt: EXTI0,
             resources: [TOKEN],
         },
     }
 }
 
-fn init(_p: init::Peripherals, _r: init::Resources) {}
+fn init(_ctxt: init::Context) {}
 
-fn idle(_t: &mut Threshold, _r: idle::Resources) -> ! {
+fn idle(_ctxt: idle::Context) -> ! {
     loop {}
 }
 
-fn exti0(_t: &mut Threshold, _r: EXTI0::Resources) {}
+fn exti0(_ctxt: exti0::Context) {}

tests/cfail/wrong-threshold.rs

@@ -4,9 +4,10 @@
 #![no_std]
 
 extern crate cortex_m_rtfm as rtfm;
+extern crate panic_abort;
 extern crate stm32f103xx;
 
-use rtfm::{app, Resource, Threshold};
+use rtfm::{app, Resource};
 
 app! {
     device: stm32f103xx,
@@ -17,32 +18,37 @@ app! {
     },
 
     tasks: {
-        EXTI0: {
+        exti0: {
-            path: exti0,
+            interrupt: EXTI0,
-            priority: 1,
+            // priority: 1,
             resources: [A, B],
         },
 
-        EXTI1: {
+        exti1: {
-            path: exti1,
+            interrupt: EXTI1,
             priority: 2,
             resources: [A, B],
         },
     },
 }
 
-fn init(_p: init::Peripherals, _r: init::Resources) {}
+fn init(_ctxt: init::Context) -> init::LateResources {
+    init::LateResources {}
+}
 
-fn idle() -> ! {
+fn idle(_ctxt: idle::Context) -> ! {
     loop {}
 }
 
-fn exti0(mut ot: &mut Threshold, r: EXTI0::Resources) {
+fn exti0(mut ctxt: exti0::Context) {
-    r.A.claim(&mut ot, |_a, mut _it| {
+    let ot = &mut ctxt.threshold;
-        //~^ error cannot borrow `ot` as mutable more than once at a time
+    let exti0::Resources { A, B } = ctxt.resources;
+
+    A.claim(ot, |_a, _it| {
+        //~^ error closure requires unique access to `ot` but `*ot` is already borrowed
         // ERROR must use inner token `it` instead of the outer one (`ot`)
-        r.B.claim(&mut ot, |_b, _| {})
+        B.claim(ot, |_b, _| {})
     });
 }
 
-fn exti1(_t: &mut Threshold, _r: EXTI1::Resources) {}
+fn exti1(_ctxt: exti1::Context) {}