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storage_types.rs
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storage_types.rs
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/// Macro to duplicate code a per-storage type basis. The given code is duplicated in new modules
/// named for each storage type. A type alias, `V`, is generated that code can use for the type.
/// `@...` match arms are considered private.
///
/// * `$attr`: Module attributes. Generally used to set documentation comments for storage type
/// modules generated by the macro.
/// * `$T`: Types to generate a module for. Accepts all underlying storage types along with a number
/// of different categories:
/// * `All`: `usize`, `u8`, `u16`, `u32`, `u64`, `isize`, `i8`, `i16`, `i32`, `i64`, `BigInt`,
/// `BigUint`, `Rational`, `Rational32`, `Rational64`, `BigRational`, `f32`, and `f64`.
/// * `PrimInt`: `usize`, `u8`, `u16`, `u32`, `u64`, `isize`, `i8`, `i16`, `i32`, `i64`.
/// * `Ratio`: `Rational`, `Rational32`, `Rational64`, and `BigRational`.
/// * `Float`: `f32` and `f64`.
/// * `Signed`: `isize`, `i8`, `i16`, `i32`, `i64`, `BigInt`, `Rational`, `Rational32`,
/// `Rational64`, `BigRational`, `f32`, and `f64`.
/// * `Unsigned`: `usize`, `u8`, `u16`, `u32`, `u64`, and `BigUint`.
/// * `$tt`: Code to place into each storage type module.
///
#[cfg_attr(all(feature = "f32", feature = "f64"), doc = " ```rust")]
//#[cfg_attr(rustfmt, rustfmt_skip)]
#[cfg_attr(
not(all(feature = "f32", feature = "f64")),
doc = " ```rust,ignore"
)]
/// #[macro_use]
/// extern crate uom;
///
/// fn main() {
/// f32::do_work(1.234_f32);
/// f64::do_work(1.234_f64);
/// }
///
/// storage_types! {
/// /// Type modules.
/// pub types: Float;
///
/// pub fn do_work(_v: V) {}
/// }
/// ```
#[macro_export]
macro_rules! storage_types {
($(#[$attr:meta])* types: $($T:ident),+; $($tt:tt)*) => {
storage_types!(@types ($(#[$attr])*) @mod $($T),+; ($($tt)*));
};
($(#[$attr:meta])* pub types: $($T:ident),+; $($tt:tt)*) => {
storage_types!(@types ($(#[$attr])*) @pub_mod $($T),+; ($($tt)*));
};
(@types $attr:tt @$M:ident $($T:ident),+; $tt:tt) => {
$(storage_types!(@type $attr @$M $T $tt);)+
};
(@type ($(#[$attr:meta])*) @$M:ident usize ($($tt:tt)*)) => {
storage_type_usize!(($(#[$attr])*) @$M ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident u8 ($($tt:tt)*)) => {
storage_type_u8!(($(#[$attr])*) @$M ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident u16 ($($tt:tt)*)) => {
storage_type_u16!(($(#[$attr])*) @$M ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident u32 ($($tt:tt)*)) => {
storage_type_u32!(($(#[$attr])*) @$M ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident u64 ($($tt:tt)*)) => {
storage_type_u64!(($(#[$attr])*) @$M ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident isize ($($tt:tt)*)) => {
storage_type_isize!(($(#[$attr])*) @$M ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident i8 ($($tt:tt)*)) => {
storage_type_i8!(($(#[$attr])*) @$M ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident i16 ($($tt:tt)*)) => {
storage_type_i16!(($(#[$attr])*) @$M ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident i32 ($($tt:tt)*)) => {
storage_type_i32!(($(#[$attr])*) @$M ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident i64 ($($tt:tt)*)) => {
storage_type_i64!(($(#[$attr])*) @$M ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident BigInt ($($tt:tt)*)) => {
storage_type_bigint!(($(#[$attr])*) @$M ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident BigUint ($($tt:tt)*)) => {
storage_type_biguint!(($(#[$attr])*) @$M ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident Rational ($($tt:tt)*)) => {
storage_type_rational!(($(#[$attr])*) @$M ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident Rational32 ($($tt:tt)*)) => {
storage_type_rational32!(($(#[$attr])*) @$M ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident Rational64 ($($tt:tt)*)) => {
storage_type_rational64!(($(#[$attr])*) @$M ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident BigRational ($($tt:tt)*)) => {
storage_type_bigrational!(($(#[$attr])*) @$M ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident f32 ($($tt:tt)*)) => {
storage_type_f32!(($(#[$attr])*) @$M ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident f64 ($($tt:tt)*)) => {
storage_type_f64!(($(#[$attr])*) @$M ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident All ($($tt:tt)*)) => {
storage_types!(@type ($(#[$attr])*) @$M usize ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M u8 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M u16 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M u32 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M u64 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M isize ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M i8 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M i16 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M i32 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M i64 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M BigInt ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M BigUint ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M Rational ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M Rational32 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M Rational64 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M BigRational ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M f32 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M f64 ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident PrimInt ($($tt:tt)*)) => {
storage_types!(@type ($(#[$attr])*) @$M usize ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M u8 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M u16 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M u32 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M u64 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M isize ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M i8 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M i16 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M i32 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M i64 ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident Ratio ($($tt:tt)*)) => {
storage_types!(@type ($(#[$attr])*) @$M Rational ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M Rational32 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M Rational64 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M BigRational ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident Float ($($tt:tt)*)) => {
storage_types!(@type ($(#[$attr])*) @$M f32 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M f64 ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident Signed ($($tt:tt)*)) => {
storage_types!(@type ($(#[$attr])*) @$M isize ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M i8 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M i16 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M i32 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M i64 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M BigInt ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M Rational ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M Rational32 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M Rational64 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M BigRational ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M f32 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M f64 ($($tt)*));
};
(@type ($(#[$attr:meta])*) @$M:ident Unsigned ($($tt:tt)*)) => {
storage_types!(@type ($(#[$attr])*) @$M usize ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M u8 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M u16 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M u32 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M u64 ($($tt)*));
storage_types!(@type ($(#[$attr])*) @$M BigUint ($($tt)*));
};
(@mod ($(#[$attr:meta])*) $M:ident, $V:ty; ($($tt:tt)*)) => {
$(#[$attr])*
mod $M {
/// Storage type.
#[allow(dead_code)]
pub type V = $V;
$($tt)*
}
};
(@pub_mod ($(#[$attr:meta])*) $M:ident, $V:ty; ($($tt:tt)*)) => {
$(#[$attr])*
pub mod $M {
/// Storage type.
#[allow(dead_code)]
pub type V = $V;
$($tt)*
}
};
($($tt:tt)*) => {
storage_types! {
types: All;
$($tt)*
}
};
}
macro_rules! storage_type_types {
($($macro_name:ident!($feature:tt, $name:ident, $($type:tt)+);)+) => {
$(#[macro_export]
#[doc(hidden)]
#[cfg(feature = $feature)]
macro_rules! $macro_name {
($attr:tt @$M:ident $tt:tt) => {
storage_types!(@$M $attr $name, $($type)+; $tt);
};
}
#[macro_export]
#[doc(hidden)]
#[cfg(not(feature = $feature))]
macro_rules! $macro_name {
($attr:tt @$M:ident $tt:tt) => {
};
})+
};
}
storage_type_types! {
storage_type_usize!("usize", usize, usize);
storage_type_u8!("u8", u8, u8);
storage_type_u16!("u16", u16, u16);
storage_type_u32!("u32", u32, u32);
storage_type_u64!("u64", u64, u64);
storage_type_isize!("isize", isize, isize);
storage_type_i8!("i8", i8, i8);
storage_type_i16!("i16", i16, i16);
storage_type_i32!("i32", i32, i32);
storage_type_i64!("i64", i64, i64);
storage_type_bigint!("bigint", bigint, $crate::num::BigInt);
storage_type_biguint!("biguint", biguint, $crate::num::BigUint);
storage_type_rational!("rational", rational, $crate::num::Rational);
storage_type_rational32!("rational32", rational32, $crate::num::rational::Rational32);
storage_type_rational64!("rational64", rational64, $crate::num::rational::Rational64);
storage_type_bigrational!("bigrational", bigrational, $crate::num::BigRational);
storage_type_f32!("f32", f32, f32);
storage_type_f64!("f64", f64, f64);
}