diff options
Diffstat (limited to 'macros/src/lib.rs')
| -rw-r--r-- | macros/src/lib.rs | 78 |
1 files changed, 37 insertions, 41 deletions
diff --git a/macros/src/lib.rs b/macros/src/lib.rs index bef5dcc1..039c19a7 100644 --- a/macros/src/lib.rs +++ b/macros/src/lib.rs @@ -19,11 +19,9 @@ mod analyze; mod check; mod trans; -/// The `app!` macro, a macro used to specify the tasks and resources of a -/// RTFM application. +/// The `app!` macro, a macro used to specify the tasks and resources of a RTFM application. /// -/// The contents of this macro uses a `key: value` syntax. All the possible keys -/// are shown below: +/// The contents of this macro uses a `key: value` syntax. All the possible keys are shown below: /// /// ``` text /// app! { @@ -41,14 +39,13 @@ mod trans; /// /// # `device` /// -/// The value of this key is a Rust path, like `foo::bar::baz`, that must point to -/// a *device crate*, a crate generated using `svd2rust`. +/// The value of this key is a Rust path, like `foo::bar::baz`, that must point to a *device crate*, +/// a crate generated using `svd2rust`. /// /// # `resources` /// -/// This key is optional. Its value is a list of `static` variables. These -/// variables are the data that can be safely accessed, modified and shared by -/// tasks. +/// This key is optional. Its value is a list of `static` variables. These variables are the data +/// that can be safely accessed, modified and shared by tasks. /// /// ``` text /// resources: { @@ -56,15 +53,18 @@ mod trans; /// static B: i32 = 0; /// static C: [u8; 16] = [0; 16]; /// static D: Thing = Thing::new(..); +/// static E: Thing; /// } /// ``` /// +/// The initial value of a resource can be omitted. This means that the resource will be runtime +/// initialized. +/// /// If this key is omitted its value defaults to an empty list. /// /// # `init` /// -/// This key is optional. Its value is a set of key values. All the possible -/// keys are shown below: +/// This key is optional. Its value is a set of key values. All the possible keys are shown below: /// /// ``` text /// init: { @@ -74,15 +74,14 @@ mod trans; /// /// ## `init.path` /// -/// This key is optional. Its value is a Rust path, like `foo::bar::baz`, that -/// points to the initialization function. +/// This key is optional. Its value is a Rust path, like `foo::bar::baz`, that points to the +/// initialization function. /// /// If the key is omitted its value defaults to `init`. /// /// # `idle` /// -/// This key is optional. Its value is a set of key values. All the possible -/// keys are shown below: +/// This key is optional. Its value is a set of key values. All the possible keys are shown below: /// /// ``` text /// idle: { @@ -93,25 +92,24 @@ mod trans; /// /// ## `idle.path` /// -/// This key is optional. Its value is a Rust path, like `foo::bar::baz`, that -/// points to the idle loop function. +/// This key is optional. Its value is a Rust path, like `foo::bar::baz`, that points to the idle +/// loop function. /// /// If the key is omitted its value defaults to `idle`. /// /// ## `idle.resources` /// -/// This key is optional. Its value is a list of resources the `idle` loop has -/// access to. The resources in this list can refer to the resources listed in -/// the top `resources` key. If the name doesn't match one of the resources -/// listed in the top `resources` key the resource is assumed to be a -/// peripheral. +/// This key is optional. Its value is a list of resources the `idle` loop has access to. The +/// resources in this list can refer to the resources listed in the top `resources` key. If the name +/// doesn't match one of the resources /// listed in the top `resources` key the resource is assumed +/// to be a peripheral. /// /// If omitted its value defaults to an empty list. /// /// # `tasks` /// -/// This key is optional. Its value is a list of tasks. Each task itself is a -/// set of key value pair. The full syntax is shown below: +/// This key is optional. Its value is a list of tasks. Each task itself is a set of key value pair. +/// The full syntax is shown below: /// /// ``` text /// tasks: { @@ -128,39 +126,37 @@ mod trans; /// /// ## `tasks.$TASK` /// -/// The key must be either a Cortex-M exception or a device specific interrupt. -/// `PENDSV`, `SVCALL`, `SYS_TICK` are considered as exceptions. All other names -/// are assumed to be interrupts. +/// The key must be either a Cortex-M exception or a device specific interrupt. `PENDSV`, `SVCALL`, +/// `SYS_TICK` are considered as exceptions. All other names are assumed to be interrupts. /// /// ## `tasks.$TASK.enabled` /// -/// This key is optional for interrupts and forbidden for exceptions. Its value -/// must be a boolean and indicates whether the interrupt will be enabled -/// (`true`) or disabled (`false`) after `init` ends and before `idle` starts. +/// This key is optional for interrupts and forbidden for exceptions. Its value must be a boolean +/// and indicates whether the interrupt will be enabled (`true`) or disabled (`false`) after `init` +/// ends and before `idle` starts. /// /// If this key is omitted its value defaults to `true`. /// /// ## `tasks.$TASK.path` /// -/// The value of this key is a Rust path, like `foo::bar::baz`, that points to -/// the handler of this task. +/// The value of this key is a Rust path, like `foo::bar::baz`, that points to the handler of this +/// task. /// /// ## `tasks.$TASK.priority` /// -/// This key is optional. Its value is an integer with type `u8` that specifies -/// the priority of this task. The minimum valid priority is 1. The maximum -/// valid priority depends on the number of the NVIC priority bits the device -/// has; if the device has 4 priority bits the maximum allowed value would be -/// 16. +/// This key is optional. Its value is an integer with type `u8` that specifies the priority of this +/// task. The minimum valid priority is 1. The maximum valid priority depends on the number of the +/// NVIC priority bits the device has; if the device has 4 priority bits the maximum allowed value +/// would be 16. /// /// If this key is omitted its value defaults to `1`. /// /// ## `tasks.$TASK.resources` /// -/// This key is optional. Its value is a list of resources this task has access -/// to. The resources in this list can refer to the resources listed in the top -/// `resources` key. If the name doesn't match one of the resources listed in -/// the top `resources` key the resource is assumed to be a peripheral. +/// This key is optional. Its value is a list of resources this task has access to. The resources in +/// this list can refer to the resources listed in the top `resources` key. If the name doesn't +/// match one of the resources listed in the top `resources` key the resource is assumed to be a +/// peripheral. /// /// If omitted its value defaults to an empty list. #[proc_macro] |