v0.4.0

closes #32
closes #33

tests/cfail.rs

@@ -1,17 +0,0 @@
-extern crate compiletest_rs as compiletest;
-
-use std::path::PathBuf;
-
-use compiletest::common::Mode;
-use compiletest::Config;
-
-#[test]
-fn cfail() {
-    let mut config = Config::default();
-    config.mode = Mode::CompileFail;
-    config.src_base = PathBuf::from(format!("tests/cfail"));
-    config.target_rustcflags =
-        Some("-C panic=abort -L target/debug -L target/debug/deps ".to_string());
-
-    compiletest::run_tests(&config);
-}

tests/cfail/critical-section.rs

@@ -1,47 +0,0 @@
-#![deny(unsafe_code)]
-#![deny(warnings)]
-#![feature(const_fn)]
-#![no_std]
-
-extern crate cortex_m_rtfm as rtfm;
-extern crate stm32f103xx;
-
-use rtfm::{app, Resource, Threshold};
-
-app! {
-    device: stm32f103xx,
-
-    resources: {
-        static ON: bool = false;
-    },
-
-    idle: {
-        resources: [ON],
-    },
-
-    tasks: {
-        EXTI0: {
-            path: exti0,
-            priority: 1,
-            resources: [ON],
-        },
-    },
-}
-
-fn init(_p: init::Peripherals, _r: init::Resources) {}
-
-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
-    });
-
-    let state = r.ON.claim(t, |state, _t| {
-        // ERROR borrow can't escape this critical section
-        state //~ error cannot infer an appropriate lifetime
-    });
-
-    loop {}
-}
-
-fn exti0(_t: &mut Threshold, _r: EXTI0::Resources) {}

tests/cfail/duplicated-task.rs

@@ -1,27 +0,0 @@
-#![deny(unsafe_code)]
-#![deny(warnings)]
-#![no_std]
-
-extern crate cortex_m_rtfm as rtfm;
-extern crate stm32f103xx;
-
-use rtfm::app;
-
-app! {
-    //~^ error proc macro panicked
-    device: stm32f103xx,
-
-    tasks: {
-        SYS_TICK: {
-            priority: 1,
-        },
-
-        SYS_TICK: {
-            priority: 2,
-        },
-    },
-}
-
-fn init(_p: init::Peripherals) {}
-
-fn idle() -> ! {}

tests/cfail/exception-divergent.rs

@@ -0,0 +1,20 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() {}
+
+    #[exception]
+    fn SVCall() -> ! {
+        //~^ ERROR `exception` handlers must have type signature `[unsafe] fn()`
+        loop {}
+    }
+};

tests/cfail/exception-input.rs

@@ -0,0 +1,19 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() {}
+
+    #[exception]
+    fn SVCall(undef: u32) {
+        //~^ ERROR `exception` handlers must have type signature `[unsafe] fn()`
+    }
+};

tests/cfail/exception-invalid.rs

@@ -0,0 +1,19 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() {}
+
+    #[exception]
+    fn NonMaskableInt() {
+        //~^ ERROR only exceptions with configurable priority can be used as hardware tasks
+    }
+};

tests/cfail/exception-output.rs

@@ -0,0 +1,20 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() {}
+
+    #[exception]
+    fn SVCall() -> u32 {
+        //~^ ERROR `exception` handlers must have type signature `[unsafe] fn()`
+        0
+    }
+};

tests/cfail/exception-sys-tick.rs

@@ -0,0 +1,19 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() {}
+
+    #[exception]
+    fn SysTick() {
+        //~^ ERROR the `SysTick` exception can't be used because it's used by the runtime
+    }
+};

tests/cfail/exception.rs

@@ -1,26 +0,0 @@
-#![deny(unsafe_code)]
-#![deny(warnings)]
-#![no_std]
-
-extern crate cortex_m_rtfm as rtfm;
-extern crate stm32f103xx;
-
-use rtfm::app;
-
-app! { //~ error proc macro panicked
-    device: stm32f103xx,
-
-    tasks: {
-        // ERROR exceptions can't be enabled / disabled here
-        SYS_TICK: {
-            enabled: true,
-            priority: 1,
-        },
-    },
-}
-
-fn init(_p: init::Peripherals) {}
-
-fn idle() -> ! {
-    loop {}
-}

tests/cfail/idle-input.rs

@@ -0,0 +1,19 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() {}
+
+    #[idle]
+    fn idle(undef: u32) {
+        //~^ ERROR `idle` must have type signature `[unsafe] fn() -> !`
+    }
+};

tests/cfail/idle-not-divergent.rs

@@ -0,0 +1,19 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() {}
+
+    #[idle]
+    fn idle() {
+        //~^ ERROR `idle` must have type signature `[unsafe] fn() -> !`
+    }
+};

tests/cfail/idle.rs

@@ -1,17 +0,0 @@
-#![deny(unsafe_code)]
-#![deny(warnings)]
-#![no_std]
-
-extern crate cortex_m_rtfm as rtfm;
-extern crate stm32f103xx;
-
-use rtfm::app;
-
-app! { //~ error mismatched types
-    device: stm32f103xx,
-}
-
-fn init(_p: init::Peripherals) {}
-
-// ERROR `idle` must be a diverging function
-fn idle() {}

tests/cfail/init-divergent.rs

@@ -0,0 +1,17 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() -> ! {
+        //~^ ERROR `init` must have type signature `[unsafe] fn()`
+        loop {}
+    }
+};

tests/cfail/init-input.rs

@@ -0,0 +1,16 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init(undef: u32) {
+        //~^ ERROR `init` must have type signature `[unsafe] fn()`
+    }
+};

tests/cfail/init-not-send.rs

@@ -0,0 +1,30 @@
+//! This is equivalent to the `late-not-send` cfail test
+
+#![feature(extern_crate_item_prelude)] // ???
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use core::marker::PhantomData;
+
+use rtfm::app;
+
+pub struct NotSend {
+    _0: PhantomData<*const ()>,
+}
+
+#[app(device = lm3s6965)] //~ ERROR `*const ()` cannot be sent between threads safely
+const APP: () = {
+    static mut X: Option<NotSend> = None;
+
+    #[init(resources = [X])]
+    fn init() {
+        *resources.X = Some(NotSend { _0: PhantomData })
+    }
+
+    #[interrupt(resources = [X])]
+    fn UART0() {}
+};

tests/cfail/init-output.rs

@@ -0,0 +1,17 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() -> u32 {
+        //~^ ERROR `init` must have type signature `[unsafe] fn()`
+        0
+    }
+};

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

@@ -1,30 +0,0 @@
-#![deny(warnings)]
-#![no_std]
-
-extern crate cortex_m_rtfm as rtfm;
-extern crate stm32f103xx;
-
-use rtfm::app;
-
-app! { //~ proc macro panicked
-    device: stm32f103xx,
-
-    resources: {
-        static BUFFER: [u8; 16] = [0; 16];
-    },
-
-    init: {
-        resources: [BUFFER],
-    },
-
-    idle: {
-        resources: [BUFFER],
-        //~^ error: this resource is owned by `init` and can't be shared
-    },
-}
-
-fn init(_p: init::Peripherals, _r: init::Resources) {}
-
-fn idle(_r: init::Resources) -> ! {
-    loop {}
-}

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

@@ -1,35 +0,0 @@
-#![deny(warnings)]
-#![no_std]
-
-extern crate cortex_m_rtfm as rtfm;
-extern crate stm32f103xx;
-
-use rtfm::app;
-
-app! { //~ proc macro panicked
-    device: stm32f103xx,
-
-    resources: {
-        static BUFFER: [u8; 16] = [0; 16];
-    },
-
-    init: {
-        resources: [BUFFER],
-    },
-
-    tasks: {
-        SYS_TICK: {
-            path: sys_tick,
-            resources: [BUFFER],
-            //~^ error: this resource is owned by `init` and can't be shared
-        },
-    },
-}
-
-fn init(_p: init::Peripherals) {}
-
-fn idle() -> ! {
-    loop {}
-}
-
-fn sys_tick() {}

tests/cfail/init.rs

@@ -1,19 +0,0 @@
-#![deny(unsafe_code)]
-#![deny(warnings)]
-#![no_std]
-
-extern crate cortex_m_rtfm as rtfm;
-extern crate stm32f103xx;
-
-use rtfm::app;
-
-app! { //~ error mismatched types
-    device: stm32f103xx,
-}
-
-// ERROR `init` must have signature `fn (init::Peripherals)`
-fn init() {}
-
-fn idle() -> ! {
-    loop {}
-}

tests/cfail/insufficient-free-interrupts.rs

@@ -0,0 +1,17 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)] //~ ERROR 1 free interrupt (`extern { .. }`) is required
+const APP: () = {
+    #[init]
+    fn init() {}
+
+    #[task]
+    fn foo() {}
+};

tests/cfail/interrupt-divergent.rs

@@ -0,0 +1,20 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() {}
+
+    #[interrupt]
+    fn UART0() -> ! {
+        //~^ ERROR `interrupt` handlers must have type signature `[unsafe] fn()`
+        loop {}
+    }
+};

tests/cfail/interrupt-input.rs

@@ -0,0 +1,19 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() {}
+
+    #[interrupt]
+    fn UART0(undef: u32) {
+        //~^ ERROR `interrupt` handlers must have type signature `[unsafe] fn()`
+    }
+};

tests/cfail/interrupt-output.rs

@@ -0,0 +1,20 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() {}
+
+    #[interrupt]
+    fn UART0() -> u32 {
+        //~^ ERROR `interrupt` handlers must have type signature `[unsafe] fn()`
+        0
+    }
+};

tests/cfail/interrupt.rs

@@ -1,26 +0,0 @@
-#![deny(unsafe_code)]
-#![deny(warnings)]
-#![no_std]
-
-extern crate cortex_m_rtfm as rtfm;
-extern crate stm32f103xx;
-
-use rtfm::app;
-
-app! { //~ error no variant named `EXTI33` found for type
-    device: stm32f103xx,
-
-    tasks: {
-        EXTI33: {
-            path: exti33,
-        },
-    },
-}
-
-fn init(_p: init::Peripherals) {}
-
-fn idle() -> ! {
-    loop {}
-}
-
-fn exti33() {}

tests/cfail/late-assigned-to-init.rs

@@ -0,0 +1,16 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    static mut X: u32 = ();
+
+    #[init(resources = [X])] //~ ERROR late resources can NOT be assigned to `init`
+    fn init() {}
+};

tests/cfail/late-not-send.rs

@@ -0,0 +1,31 @@
+//! `init` has a static priority of `0`. Initializing resources from it is equivalent to sending a
+//! message to the task that will own the resource
+
+#![feature(extern_crate_item_prelude)] // ???
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use core::marker::PhantomData;
+
+use rtfm::app;
+
+struct NotSend {
+    _0: PhantomData<*const ()>,
+}
+
+#[app(device = lm3s6965)] //~ ERROR `*const ()` cannot be sent between threads safely
+const APP: () = {
+    static mut X: NotSend = ();
+
+    #[init]
+    fn init() {
+        X = NotSend { _0: PhantomData };
+    }
+
+    #[interrupt(resources = [X])]
+    fn UART0() {}
+};

tests/cfail/late-resource-init.rs

@@ -1,49 +0,0 @@
-#![deny(unsafe_code)]
-#![deny(warnings)]
-#![no_std]
-
-extern crate cortex_m_rtfm as rtfm;
-extern crate stm32f103xx;
-
-use rtfm::{app, Threshold};
-
-app! {
-    device: stm32f103xx,
-
-    resources: {
-        static A: u8 = 0;
-        static LATE: u8;
-    },
-
-    tasks: {
-        EXTI0: {
-            path: exti0,
-            priority: 1,
-            resources: [A, LATE],
-        },
-
-        EXTI1: {
-            path: exti1,
-            priority: 2,
-            resources: [A, LATE],
-        },
-    },
-}
-
-fn init(_p: init::Peripherals, r: init::Resources) -> init::LateResources {
-    // Try to use a resource that's not yet initialized:
-    r.LATE;
-    //~^ error: no field `LATE`
-
-    init::LateResources {
-        LATE: 0,
-    }
-}
-
-fn idle() -> ! {
-    loop {}
-}
-
-fn exti0(_t: &mut Threshold, _r: EXTI0::Resources) {}
-
-fn exti1(_t: &mut Threshold, _r: EXTI1::Resources) {}

tests/cfail/late-uninit.rs

@@ -0,0 +1,16 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    static mut X: u32 = (); //~ ERROR late resources MUST be initialized at the end of `init`
+
+    #[init]
+    fn init() {}
+};

tests/cfail/lock.rs

@@ -1,67 +0,0 @@
-#![deny(unsafe_code)]
-#![deny(warnings)]
-#![feature(const_fn)]
-#![no_std]
-
-extern crate cortex_m_rtfm as rtfm;
-extern crate stm32f103xx;
-
-use rtfm::{app, Resource, Threshold};
-
-app! {
-    device: stm32f103xx,
-
-    resources: {
-        static ON: bool = false;
-        static MAX: u8 = 0;
-    },
-
-    tasks: {
-        EXTI0: {
-            path: exti0,
-            priority: 1,
-            resources: [MAX, ON],
-        },
-
-        EXTI1: {
-            path: exti1,
-            priority: 2,
-            resources: [ON],
-        },
-
-        EXTI2: {
-            path: exti2,
-            priority: 16,
-            resources: [MAX],
-        },
-    },
-}
-
-fn init(_p: init::Peripherals, _r: init::Resources) {}
-
-fn idle() -> ! {
-    loop {}
-}
-
-fn exti0(mut t: &mut Threshold, mut r: EXTI0::Resources) {
-    // ERROR need to lock to access the resource because priority < ceiling
-    if *r.ON {
-        //~^ error type `EXTI0::ON` cannot be dereferenced
-    }
-
-    // OK need to lock to access the resource
-    if r.ON.claim(&mut t, |on, _| *on) {}
-
-    // OK can claim a resource with maximum ceiling
-    r.MAX.claim_mut(&mut t, |max, _| *max += 1);
-}
-
-fn exti1(mut t: &mut Threshold, r: EXTI1::Resources) {
-    // OK to directly access the resource because priority == ceiling
-    if *r.ON {}
-
-    // though the resource can still be claimed -- the claim is a no-op
-    if r.ON.claim(&mut t, |on, _| *on) {}
-}
-
-fn exti2(_t: &mut Threshold, _r: EXTI2::Resources) {}

tests/cfail/needs-send.rs

@@ -0,0 +1,30 @@
+#![feature(extern_crate_item_prelude)] // ???
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use core::marker::PhantomData;
+
+use rtfm::app;
+
+pub struct NotSend {
+    _0: PhantomData<*const ()>,
+}
+
+unsafe impl Sync for NotSend {}
+
+#[app(device = lm3s6965)] //~ ERROR cannot be sent between threads safely
+const APP: () = {
+    #[init(spawn = [foo])]
+    fn init() {}
+
+    #[task]
+    fn foo(_x: NotSend) {}
+
+    extern "C" {
+        fn UART0();
+    }
+};

tests/cfail/needs-sync.rs

@@ -0,0 +1,36 @@
+#![feature(extern_crate_item_prelude)] // ???
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use core::marker::PhantomData;
+
+use rtfm::app;
+
+pub struct NotSync {
+    _0: PhantomData<*const ()>,
+}
+
+unsafe impl Send for NotSync {}
+
+#[app(device = lm3s6965)] //~ ERROR cannot be shared between threads safely
+const APP: () = {
+    static X: NotSync = NotSync { _0: PhantomData };
+
+    #[init(spawn = [foo])]
+    fn init() {}
+
+    #[task(priority = 1, resources = [X])]
+    fn foo() {}
+
+    #[task(priority = 2, resources = [X])]
+    fn bar() {}
+
+    extern "C" {
+        fn UART0();
+        fn UART1();
+    }
+};

tests/cfail/peripheral-alias.rs

@@ -1,27 +0,0 @@
-#![deny(unsafe_code)]
-#![deny(warnings)]
-#![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 +0,0 @@
-#![deny(unsafe_code)]
-#![deny(warnings)]
-#![no_std]
-
-extern crate cortex_m_rtfm as rtfm;
-extern crate stm32f103xx;
-
-use rtfm::app;
-
-app! { //~ error referenced constant has errors
-    //~^ error could not evaluate constant
-    //~| error constant evaluation error
-    device: stm32f103xx,
-
-    tasks: {
-        SYS_TICK: {
-            path: sys_tick,
-            // ERROR priority must be in the range [1, 16]
-            priority: 17,
-        },
-    },
-}
-
-fn init(_p: init::Peripherals) {}
-
-fn idle() -> ! {
-    loop {}
-}
-
-fn sys_tick() {}

tests/cfail/priority-too-low.rs

@@ -1,30 +0,0 @@
-#![deny(unsafe_code)]
-#![deny(warnings)]
-#![no_std]
-
-extern crate cortex_m_rtfm as rtfm;
-extern crate stm32f103xx;
-
-use rtfm::app;
-
-app! { //~ error referenced constant has errors
-    //~^ error could not evaluate constant
-    //~| error constant evaluation error
-    device: stm32f103xx,
-
-    tasks: {
-        SYS_TICK: {
-            path: sys_tick,
-            // ERROR priority must be in the range [1, 16]
-            priority: 0,
-        },
-    },
-}
-
-fn init(_p: init::Peripherals) {}
-
-fn idle() -> ! {
-    loop {}
-}
-
-fn sys_tick() {}

tests/cfail/resource-alias.rs

@@ -1,31 +0,0 @@
-#![deny(unsafe_code)]
-#![deny(warnings)]
-#![no_std]
-
-extern crate cortex_m_rtfm as rtfm;
-extern crate stm32f103xx;
-
-use rtfm::app;
-
-app! { //~ error proc macro panicked
-    device: stm32f103xx,
-
-    resources: {
-        // resource `MAX` listed twice
-        MAX: u8 = 0;
-        MAX: u16 = 0;
-    },
-
-    tasks: {
-        EXTI0: {
-            enabled: true,
-            priority: 1,
-        },
-    },
-}
-
-fn init(_p: init::Peripherals) {}
-
-fn idle() -> ! {
-    loop {}
-}

tests/cfail/resource-not-declared.rs

@@ -0,0 +1,14 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init(resources = [X])] //~ ERROR this resource has NOT been declared
+    fn init() {}
+};

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

@@ -1,53 +0,0 @@
-#![deny(unsafe_code)]
-#![deny(warnings)]
-#![feature(const_fn)]
-#![no_std]
-
-extern crate cortex_m_rtfm as rtfm;
-extern crate stm32f103xx;
-
-use rtfm::{app, Threshold};
-
-app! {
-    device: stm32f103xx,
-
-    resources: {
-        static SHARED: bool = false;
-    },
-
-    tasks: {
-        EXTI0: {
-            path: exti0,
-            priority: 1,
-            resources: [SHARED],
-        },
-
-        EXTI1: {
-            path: exti1,
-            priority: 2,
-            resources: [SHARED],
-        },
-    },
-}
-
-fn init(_p: init::Peripherals, _r: init::Resources) {}
-
-fn idle() -> ! {
-    loop {}
-}
-
-fn is_send<T>(_: &T) where T: Send {}
-fn is_sync<T>(_: &T) where T: Sync {}
-
-fn exti0(_t: &mut Threshold, r: EXTI0::Resources) {
-    // ERROR resource proxies can't be shared between tasks
-    is_sync(&r.SHARED);
-    //~^ error `*const ()` cannot be shared between threads safely
-
-    // ERROR resource proxies are not `Send`able across tasks
-    is_send(&r.SHARED);
-    //~^ error `*const ()` cannot be sent between threads safely
-}
-
-fn exti1(_t: &mut Threshold, _r: EXTI1::Resources) {
-}

tests/cfail/resource-pub.rs

@@ -0,0 +1,17 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    pub static mut X: u32 = 0;
+    //~^ ERROR resources must have inherited / private visibility
+
+    #[init]
+    fn init() {}
+};

tests/cfail/task-divergent.rs

@@ -0,0 +1,24 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() {}
+
+    #[task]
+    fn foo() -> ! {
+        //~^ ERROR `task` handlers must have type signature `[unsafe] fn(..)`
+        loop {}
+    }
+
+    extern "C" {
+        fn UART0();
+    }
+};

tests/cfail/task-idle.rs

@@ -0,0 +1,23 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() {}
+
+    #[task]
+    fn idle() {
+        //~^ ERROR `task` handlers can NOT be named `idle`, `init` or `resources`
+    }
+
+    extern "C" {
+        fn UART0();
+    }
+};

tests/cfail/task-not-declared.rs

@@ -0,0 +1,14 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init(spawn = [X])] //~ ERROR this task has NOT been declared
+    fn init() {}
+};

tests/cfail/token-outlive.rs

@@ -1,45 +0,0 @@
-#![deny(unsafe_code)]
-#![deny(warnings)]
-#![feature(const_fn)]
-#![no_std]
-
-extern crate cortex_m_rtfm as rtfm;
-extern crate stm32f103xx;
-
-use rtfm::{app, Resource, Threshold};
-
-app! {
-    device: stm32f103xx,
-
-    resources: {
-        static STATE: bool = false;
-    },
-
-    tasks: {
-        EXTI0: {
-            path: exti0,
-            priority: 1,
-            resources: [STATE],
-        },
-
-        EXTI1: {
-            path: exti1,
-            priority: 2,
-            resources: [STATE],
-        },
-    },
-}
-
-fn init(_p: init::Peripherals, _r: init::Resources) {}
-
-fn idle() -> ! {
-    loop {}
-}
-
-fn exti0(mut t: &mut Threshold, r: EXTI0::Resources) {
-    // ERROR token should not outlive the critical section
-    let t = r.STATE.claim(&mut t, |_state, t| t);
-    //~^ error cannot infer an appropriate lifetime
-}
-
-fn exti1(_t: &mut Threshold, _r: EXTI1::Resources) {}

tests/cfail/token-transfer.rs

@@ -1,36 +0,0 @@
-#![deny(unsafe_code)]
-#![deny(warnings)]
-#![feature(const_fn)]
-#![no_std]
-
-extern crate cortex_m_rtfm as rtfm;
-extern crate stm32f103xx;
-
-use rtfm::{app, Threshold};
-
-app! { //~ error `*const ()` cannot be sent between threads safely
-    device: stm32f103xx,
-
-    resources: {
-        static TOKEN: Option<Threshold> = None;
-    },
-
-    idle: {
-        resources: [TOKEN],
-    },
-
-    tasks: {
-        EXTI0: {
-            path: exti0,
-            resources: [TOKEN],
-        },
-    }
-}
-
-fn init(_p: init::Peripherals, _r: init::Resources) {}
-
-fn idle(_t: &mut Threshold, _r: idle::Resources) -> ! {
-    loop {}
-}
-
-fn exti0(_t: &mut Threshold, _r: EXTI0::Resources) {}

tests/cfail/used-free-interrupt.rs

@@ -0,0 +1,21 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() {}
+
+    #[interrupt]
+    fn UART0() {} //~ ERROR free interrupts (`extern { .. }`) can't be used as interrupt handlers
+
+    extern "C" {
+        fn UART0();
+    }
+};

tests/cfail/wrong-threshold.rs

@@ -1,47 +0,0 @@
-#![deny(unsafe_code)]
-#![deny(warnings)]
-#![no_std]
-
-extern crate cortex_m_rtfm as rtfm;
-extern crate stm32f103xx;
-
-use rtfm::{app, Resource, Threshold};
-
-app! {
-    device: stm32f103xx,
-
-    resources: {
-        static A: u8 = 0;
-        static B: u8 = 0;
-    },
-
-    tasks: {
-        EXTI0: {
-            path: exti0,
-            priority: 1,
-            resources: [A, B],
-        },
-
-        EXTI1: {
-            path: exti1,
-            priority: 2,
-            resources: [A, B],
-        },
-    },
-}
-
-fn init(_p: init::Peripherals, _r: init::Resources) {}
-
-fn idle() -> ! {
-    loop {}
-}
-
-fn exti0(mut ot: &mut Threshold, r: EXTI0::Resources) {
-    r.A.claim(&mut ot, |_a, mut _it| {
-        //~^ error cannot borrow `ot` as mutable more than once at a time
-        // ERROR must use inner token `it` instead of the outer one (`ot`)
-        r.B.claim(&mut ot, |_b, _| {})
-    });
-}
-
-fn exti1(_t: &mut Threshold, _r: EXTI1::Resources) {}

tests/compiletest.rs

@@ -0,0 +1,59 @@
+use std::{fs, path::PathBuf, process::Command};
+
+use compiletest_rs::{common::Mode, Config};
+use tempdir::TempDir;
+
+#[test]
+fn cfail() {
+    let mut config = Config::default();
+
+    config.mode = Mode::CompileFail;
+    config.src_base = PathBuf::from("tests/cfail");
+    config.link_deps();
+
+    // remove duplicate and trailing `-L` flags
+    let mut s = String::new();
+    if let Some(flags) = config.target_rustcflags.as_mut() {
+        let mut iter = flags.split_whitespace().peekable();
+
+        while let Some(flag) = iter.next() {
+            if flag == "-L" && (iter.peek() == Some(&"-L") || iter.peek() == None) {
+                iter.next();
+                continue;
+            }
+
+            s += flag;
+            s += " ";
+        }
+
+        // path to proc-macro crate
+        s += "-L target/debug/deps ";
+
+        // avoid "error: language item required, but not found: `eh_personality`"
+        s += "-C panic=abort ";
+    }
+
+    let td = TempDir::new("rtfm").unwrap();
+    for f in fs::read_dir("tests/cpass").unwrap() {
+        let f = f.unwrap().path();
+        let name = f.file_stem().unwrap().to_str().unwrap();
+
+        assert!(
+            Command::new("rustc")
+                .args(s.split_whitespace())
+                .arg(f.display().to_string())
+                .arg("-o")
+                .arg(td.path().join(name).display().to_string())
+                .arg("-C")
+                .arg("linker=true")
+                .status()
+                .unwrap()
+                .success()
+        );
+    }
+
+    config.target_rustcflags = Some(s);
+    config.clean_rmeta();
+
+    compiletest_rs::run_tests(&config);
+}

tests/cpass/late-not-send.rs

@@ -0,0 +1,33 @@
+#![feature(extern_crate_item_prelude)] // ???
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use core::marker::PhantomData;
+
+use rtfm::app;
+
+pub struct NotSend {
+    _0: PhantomData<*const ()>,
+}
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    static mut X: NotSend = ();
+    static mut Y: Option<NotSend> = None;
+
+    #[init(resources = [Y])]
+    fn init() {
+        *resources.Y = Some(NotSend { _0: PhantomData });
+
+        X = NotSend { _0: PhantomData };
+    }
+
+    #[idle(resources = [X, Y])]
+    fn idle() -> ! {
+        loop {}
+    }
+};

tests/cpass/late-resource.rs

@@ -0,0 +1,22 @@
+//! Runtime initialized resources
+#![feature(extern_crate_item_prelude)] // ???
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    static mut X: u32 = ();
+    static Y: u32 = ();
+
+    #[init]
+    fn init() {
+        X = 0;
+        Y = 1;
+    }
+};

tests/cpass/peripheral.rs

@@ -0,0 +1,19 @@
+//! Core and device peripherals
+#![feature(extern_crate_item_prelude)] // ???
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() {
+        let _: rtfm::Peripherals = core;
+        let _: lm3s6965::Peripherals = device;
+    }
+};

tests/cpass/resource.rs

@@ -0,0 +1,80 @@
+//! Check code generation of resources
+
+#![feature(extern_crate_item_prelude)] // ???
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    static mut O1: u32 = 0; // init
+    static mut O2: u32 = 0; // idle
+    static mut O3: u32 = 0; // EXTI0
+    static O4: u32 = 0; // idle
+    static O5: u32 = 0; // EXTI1
+    static O6: u32 = 0; // init
+
+    static mut S1: u32 = 0; // idle & EXTI0
+    static mut S2: u32 = 0; // EXTI0 & EXTI1
+    static S3: u32 = 0;
+
+    #[init(resources = [O1, O4, O5, O6, S3])]
+    fn init() {
+        // owned by `init` == `&'static mut`
+        let _: &'static mut u32 = resources.O1;
+
+        // owned by `init` == `&'static` if read-only
+        let _: &'static u32 = resources.O6;
+
+        // `init` has exclusive access to all resources
+        let _: &mut u32 = resources.O4;
+        let _: &mut u32 = resources.O5;
+        let _: &mut u32 = resources.S3;
+    }
+
+    #[idle(resources = [O2, O4, S1, S3])]
+    fn idle() -> ! {
+        // owned by `idle` == `&'static mut`
+        let _: &'static mut u32 = resources.O2;
+
+        // owned by `idle` == `&'static` if read-only
+        let _: &'static u32 = resources.O4;
+
+        // shared with `idle` == `Mutex`
+        resources.S1.lock(|_| {});
+
+        // `&` if read-only
+        let _: &u32 = resources.S3;
+
+        loop {}
+    }
+
+    #[interrupt(resources = [O3, S1, S2, S3])]
+    fn UART0() {
+        // owned by interrupt == `&mut`
+        let _: &mut u32 = resources.O3;
+
+        // no `Mutex` when access from highest priority task
+        let _: &mut u32 = resources.S1;
+
+        // no `Mutex` when co-owned by cooperative (same priority) tasks
+        let _: &mut u32 = resources.S2;
+
+        // `&` if read-only
+        let _: &u32 = resources.S3;
+    }
+
+    #[interrupt(resources = [S2, O5])]
+    fn UART1() {
+        // owned by interrupt == `&` if read-only
+        let _: &u32 = resources.O5;
+
+        // no `Mutex` when co-owned by cooperative (same priority) tasks
+        let _: &mut u32 = resources.S2;
+    }
+};

tests/cpass/schedule.rs

@@ -0,0 +1,59 @@
+#![feature(extern_crate_item_prelude)] // ???
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::{app, Instant};
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init(schedule = [foo, bar, baz])]
+    fn init() {
+        let _: Result<(), ()> = schedule.foo(start + 10.cycles());
+        let _: Result<(), u32> = schedule.bar(start + 20.cycles(), 0);
+        let _: Result<(), (u32, u32)> = schedule.baz(start + 30.cycles(), 0, 1);
+    }
+
+    #[idle(schedule = [foo, bar, baz])]
+    fn idle() -> ! {
+        let _: Result<(), ()> = schedule.foo(Instant::now() + 40.cycles());
+        let _: Result<(), u32> = schedule.bar(Instant::now() + 50.cycles(), 0);
+        let _: Result<(), (u32, u32)> = schedule.baz(Instant::now() + 60.cycles(), 0, 1);
+
+        loop {}
+    }
+
+    #[exception(schedule = [foo, bar, baz])]
+    fn SVCall() {
+        let _: Result<(), ()> = schedule.foo(start + 70.cycles());
+        let _: Result<(), u32> = schedule.bar(start + 80.cycles(), 0);
+        let _: Result<(), (u32, u32)> = schedule.baz(start + 90.cycles(), 0, 1);
+    }
+
+    #[interrupt(schedule = [foo, bar, baz])]
+    fn UART0() {
+        let _: Result<(), ()> = schedule.foo(start + 100.cycles());
+        let _: Result<(), u32> = schedule.bar(start + 110.cycles(), 0);
+        let _: Result<(), (u32, u32)> = schedule.baz(start + 120.cycles(), 0, 1);
+    }
+
+    #[task(schedule = [foo, bar, baz])]
+    fn foo() {
+        let _: Result<(), ()> = schedule.foo(scheduled + 130.cycles());
+        let _: Result<(), u32> = schedule.bar(scheduled + 140.cycles(), 0);
+        let _: Result<(), (u32, u32)> = schedule.baz(scheduled + 150.cycles(), 0, 1);
+    }
+
+    #[task]
+    fn bar(_x: u32) {}
+
+    #[task]
+    fn baz(_x: u32, _y: u32) {}
+
+    extern "C" {
+        fn UART1();
+    }
+};

tests/cpass/singleton.rs

@@ -0,0 +1,67 @@
+#![feature(extern_crate_item_prelude)] // ???
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate owned_singleton;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[Singleton]
+    static mut O1: u32 = 0;
+    #[Singleton]
+    static mut O2: u32 = 0;
+    #[Singleton]
+    static mut O3: u32 = 0;
+    #[Singleton]
+    static O4: u32 = 0;
+    #[Singleton]
+    static O5: u32 = 0;
+    #[Singleton]
+    static O6: u32 = 0;
+
+    #[Singleton]
+    static mut S1: u32 = 0;
+    #[Singleton]
+    static mut S2: u32 = 0;
+
+    #[init(resources = [O1, O2, O3, O4, O5, O6, S1, S2])]
+    fn init() {
+        let _: O1 = resources.O1;
+        let _: &mut O2 = resources.O2;
+        let _: &mut O3 = resources.O3;
+        let _: O4 = resources.O4;
+        let _: &mut O5 = resources.O5;
+        let _: &mut O6 = resources.O6;
+
+        let _: &mut S1 = resources.S1;
+        let _: &mut S2 = resources.S2;
+    }
+
+    #[idle(resources = [O2, O5])]
+    fn idle() -> ! {
+        let _: O2 = resources.O2;
+        let _: O5 = resources.O5;
+
+        loop {}
+    }
+
+    #[interrupt(resources = [O3, O6, S1, S2])]
+    fn UART0() {
+        let _: &mut O3 = resources.O3;
+        let _: &O6 = resources.O6;
+
+        let _: &mut S1 = resources.S1;
+        let _: &S2 = resources.S2;
+    }
+
+    #[interrupt(resources = [S1, S2])]
+    fn UART1() {
+        let _: &mut S1 = resources.S1;
+        let _: &S2 = resources.S2;
+    }
+};

tests/cpass/spawn.rs

@@ -0,0 +1,60 @@
+//! Check code generation of `spawn`
+#![feature(extern_crate_item_prelude)] // ???
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init(spawn = [foo, bar, baz])]
+    fn init() {
+        let _: Result<(), ()> = spawn.foo();
+        let _: Result<(), u32> = spawn.bar(0);
+        let _: Result<(), (u32, u32)> = spawn.baz(0, 1);
+    }
+
+    #[idle(spawn = [foo, bar, baz])]
+    fn idle() -> ! {
+        let _: Result<(), ()> = spawn.foo();
+        let _: Result<(), u32> = spawn.bar(0);
+        let _: Result<(), (u32, u32)> = spawn.baz(0, 1);
+
+        loop {}
+    }
+
+    #[exception(spawn = [foo, bar, baz])]
+    fn SVCall() {
+        let _: Result<(), ()> = spawn.foo();
+        let _: Result<(), u32> = spawn.bar(0);
+        let _: Result<(), (u32, u32)> = spawn.baz(0, 1);
+    }
+
+    #[interrupt(spawn = [foo, bar, baz])]
+    fn UART0() {
+        let _: Result<(), ()> = spawn.foo();
+        let _: Result<(), u32> = spawn.bar(0);
+        let _: Result<(), (u32, u32)> = spawn.baz(0, 1);
+    }
+
+    #[task(spawn = [foo, bar, baz])]
+    fn foo() {
+        let _: Result<(), ()> = spawn.foo();
+        let _: Result<(), u32> = spawn.bar(0);
+        let _: Result<(), (u32, u32)> = spawn.baz(0, 1);
+    }
+
+    #[task]
+    fn bar(_x: u32) {}
+
+    #[task]
+    fn baz(_x: u32, _y: u32) {}
+
+    extern "C" {
+        fn UART1();
+    }
+};

tests/cpass/unsafe.rs

@@ -0,0 +1,46 @@
+//! Check code generation of `unsafe` `init` / `idle` / `exception` / `interrupt` / `task`
+#![feature(extern_crate_item_prelude)] // ???
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+unsafe fn foo() {}
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    unsafe fn init() {
+        foo();
+    }
+
+    #[idle]
+    unsafe fn idle() -> ! {
+        foo();
+
+        loop {}
+    }
+
+    #[exception]
+    unsafe fn SVCall() {
+        foo();
+    }
+
+    #[interrupt]
+    unsafe fn UART0() {
+        foo();
+    }
+
+    #[task]
+    unsafe fn bar() {
+        foo();
+    }
+
+    extern "C" {
+        fn UART1();
+    }
+};