xwrust/
macros.rs

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//! XWOS RUST：宏
//! ========
//!

#[allow(unused_macros)]
macro_rules! xwos_struct {
    (
        $(#[$attr:meta])*
        pub struct $name:ident {
            $($field:tt)*
        }
    ) => (
        #[repr(C)]
        #[cfg_attr(target_pointer_width = "32", repr(align(8)))]
        #[cfg_attr(target_pointer_width = "64", repr(align(16)))]
        $(#[$attr])*
        pub struct $name {
            $($field)*
        }
    );

    (
        $(#[$attr:meta])*
        pub(crate) struct $name:ident {
            $($field:tt)*
        }
    ) => (
        #[repr(C)]
        #[cfg_attr(target_pointer_width = "32", repr(align(8)))]
        #[cfg_attr(target_pointer_width = "64", repr(align(16)))]
        $(#[$attr])*
        pub(crate) struct $name {
            $($field)*
        }
    );

    (
        $(#[$attr:meta])*
        struct $name:ident {
            $($field:tt)*
        }
    ) => (
        #[repr(C)]
        #[cfg_attr(target_pointer_width = "32", repr(align(8)))]
        #[cfg_attr(target_pointer_width = "64", repr(align(16)))]
        $(#[$attr])*
        struct $name {
            $($field)*
        }
    );
}

/// 生成GPIO PIN掩码的宏
///
/// # 示例
///
/// ```rust
/// let pinmsk: XwSq = pin!(0, 1, 2, 3); // 0b1111
/// ```
///
#[macro_export]
macro_rules! pin {
    ($($pos:expr),*) => ($((1 << $pos) | )* 0)
}

/// 生成位掩码的宏
///
/// # 示例
///
/// ```rust
/// let pinmsk: XwSq = bit!(0, 1, 2, 3); // 0b1111
/// ```
///
#[macro_export]
macro_rules! bit {
    ($($pos:expr),*) => ($((1 << $pos) | )* 0)
}