Use edition 2018 (fixes #138)

along with minor changes:
- bump minimum rustc version to 1.31
- tidy doc comments

Thanks WildCryptoFox for previous work!

Author: jerry73204

.travis.yml

@@ -3,7 +3,7 @@ rust:
   - stable
   - beta
   - nightly
-  - 1.22.0
+  - 1.31.0
 cache: cargo
 os:
   - linux

Cargo.toml

@@ -12,6 +12,7 @@
   license = "MIT/Apache-2.0"
   description = "Typenum is a Rust library for type-level numbers evaluated at compile time. It currently supports bits, unsigned integers, and signed integers. It also provides a type-level array of type-level numbers, but its implementation is incomplete."
   categories = ["no-std"]
+  edition = "2018"
 
 [lib]
   name = "typenum"

build/main.rs

@@ -151,11 +151,11 @@ We also define the aliases `False` and `True` for `B0` and `B1`, respectively.
 */
 #[allow(missing_docs)]
 pub mod consts {{
-    use uint::{{UInt, UTerm}};
-    use int::{{PInt, NInt}};
+    use crate::uint::{{UInt, UTerm}};
+    use crate::int::{{PInt, NInt}};
 
-    pub use bit::{{B0, B1}};
-    pub use int::Z0;
+    pub use crate::bit::{{B0, B1}};
+    pub use crate::int::Z0;
 
     pub type True = B1;
     pub type False = B0;

src/bit.rs

@@ -10,11 +10,10 @@
 //! - From `typenum`: `Same` and `Cmp`.
 //!
 
+use crate::{private::InternalMarker, Cmp, Equal, Greater, Less, NonZero, PowerOfTwo};
 use core::ops::{BitAnd, BitOr, BitXor, Not};
-use private::InternalMarker;
-use {Cmp, Equal, Greater, Less, NonZero, PowerOfTwo};
 
-pub use marker_traits::Bit;
+pub use crate::marker_traits::Bit;
 
 /// The type-level bit 0.
 #[derive(Eq, PartialEq, Ord, PartialOrd, Clone, Copy, Hash, Debug, Default)]
@@ -248,7 +247,7 @@ impl Cmp<B1> for B1 {
     }
 }
 
-use Min;
+use crate::Min;
 impl Min<B0> for B0 {
     type Output = B0;
     #[inline]
@@ -278,7 +277,7 @@ impl Min<B1> for B1 {
     }
 }
 
-use Max;
+use crate::Max;
 impl Max<B0> for B0 {
     type Output = B0;
     #[inline]

src/int.rs

@@ -25,19 +25,17 @@
 //! assert_eq!(<N3 as Div<P2>>::Output::to_i32(), -1);
 //! assert_eq!(<N3 as Rem<P2>>::Output::to_i32(), -1);
 //! ```
-//!
 
+pub use crate::marker_traits::Integer;
+use crate::{
+    bit::{Bit, B0, B1},
+    consts::{N1, P1, U0, U1},
+    private::{Internal, InternalMarker, PrivateDivInt, PrivateIntegerAdd, PrivateRem},
+    uint::{UInt, Unsigned},
+    Cmp, Equal, Greater, Less, NonZero, Pow, PowerOfTwo,
+};
 use core::ops::{Add, Div, Mul, Neg, Rem, Sub};
 
-use bit::{Bit, B0, B1};
-use consts::{N1, P1, U0, U1};
-use private::{Internal, InternalMarker};
-use private::{PrivateDivInt, PrivateIntegerAdd, PrivateRem};
-use uint::{UInt, Unsigned};
-use {Cmp, Equal, Greater, Less, NonZero, Pow, PowerOfTwo};
-
-pub use marker_traits::Integer;
-
 /// Type-level signed integers with positive sign.
 #[derive(Eq, PartialEq, Ord, PartialOrd, Clone, Copy, Hash, Debug, Default)]
 pub struct PInt<U: Unsigned + NonZero> {
@@ -610,7 +608,7 @@ impl_int_div!(NInt, NInt, PInt);
 // ---------------------------------------------------------------------------------------
 // PartialDiv
 
-use {PartialDiv, Quot};
+use crate::{PartialDiv, Quot};
 
 impl<M, N> PartialDiv<N> for M
 where
@@ -888,7 +886,7 @@ where
 
 // ---------------------------------------------------------------------------------------
 // Gcd
-use {Gcd, Gcf};
+use crate::{Gcd, Gcf};
 
 impl Gcd<Z0> for Z0 {
     type Output = Z0;
@@ -960,7 +958,7 @@ where
 
 // ---------------------------------------------------------------------------------------
 // Min
-use {Max, Maximum, Min, Minimum};
+use crate::{Max, Maximum, Min, Minimum};
 
 impl Min<Z0> for Z0 {
     type Output = Z0;
@@ -1179,8 +1177,7 @@ where
 
 #[cfg(test)]
 mod tests {
-    use consts::*;
-    use Integer;
+    use crate::{consts::*, Integer};
 
     #[test]
     fn to_ix_min() {

src/lib.rs

@@ -86,15 +86,16 @@ pub mod uint;
 
 pub mod array;
 
-pub use consts::*;
-pub use generated::consts;
-pub use marker_traits::*;
-pub use operator_aliases::*;
-pub use type_operators::*;
-
-pub use array::{ATerm, TArr};
-pub use int::{NInt, PInt};
-pub use uint::{UInt, UTerm};
+pub use crate::{
+    array::{ATerm, TArr},
+    consts::*,
+    generated::consts,
+    int::{NInt, PInt},
+    marker_traits::*,
+    operator_aliases::*,
+    type_operators::*,
+    uint::{UInt, UTerm},
+};
 
 /// A potential output from `Cmp`, this is the type equivalent to the enum variant
 /// `core::cmp::Ordering::Greater`.

src/operator_aliases.rs

@@ -7,22 +7,22 @@
 //!
 //! ```rust
 //! # #[macro_use] extern crate typenum;
-//! # fn main() {
 //! use std::ops::Mul;
 //! use typenum::{Prod, P5, P7};
 //!
 //! type X = <P7 as Mul<P5>>::Output;
 //! type Y = Prod<P7, P5>;
 //!
 //! assert_type_eq!(X, Y);
-//! # }
 //! ```
 //!
 //!
 
 // Aliases!!!
+use crate::type_operators::{
+    Abs, Cmp, Gcd, Len, Logarithm2, Max, Min, PartialDiv, Pow, SquareRoot,
+};
 use core::ops::{Add, BitAnd, BitOr, BitXor, Div, Mul, Neg, Rem, Shl, Shr, Sub};
-use type_operators::{Abs, Cmp, Gcd, Len, Logarithm2, Max, Min, PartialDiv, Pow, SquareRoot};
 
 /// Alias for the associated type of `BitAnd`: `And<A, B> = <A as BitAnd<B>>::Output`
 pub type And<A, B> = <A as BitAnd<B>>::Output;
@@ -64,12 +64,12 @@ pub type Exp<A, B> = <A as Pow<B>>::Output;
 pub type Gcf<A, B> = <A as Gcd<B>>::Output;
 
 /// Alias to make it easy to add 1: `Add1<A> = <A as Add<B1>>::Output`
-pub type Add1<A> = <A as Add<::bit::B1>>::Output;
+pub type Add1<A> = <A as Add<crate::bit::B1>>::Output;
 /// Alias to make it easy to subtract 1: `Sub1<A> = <A as Sub<B1>>::Output`
-pub type Sub1<A> = <A as Sub<::bit::B1>>::Output;
+pub type Sub1<A> = <A as Sub<crate::bit::B1>>::Output;
 
 /// Alias to make it easy to multiply by 2. `Double<A> = Shleft<A, B1>`
-pub type Double<A> = Shleft<A, ::bit::B1>;
+pub type Double<A> = Shleft<A, crate::bit::B1>;
 
 /// Alias to make it easy to square. `Square<A> = <A as Mul<A>>::Output`
 pub type Square<A> = <A as Mul>::Output;
@@ -91,7 +91,9 @@ pub type Minimum<A, B> = <A as Min<B>>::Output;
 /// Alias for the associated type of `Max`: `Maximum<A, B> = <A as Max<B>>::Output`
 pub type Maximum<A, B> = <A as Max<B>>::Output;
 
-use type_operators::{IsEqual, IsGreater, IsGreaterOrEqual, IsLess, IsLessOrEqual, IsNotEqual};
+use crate::type_operators::{
+    IsEqual, IsGreater, IsGreaterOrEqual, IsLess, IsLessOrEqual, IsNotEqual,
+};
 /// Alias for the associated type of `IsLess`: `Le<A, B> = <A as IsLess<B>>::Output`
 pub type Le<A, B> = <A as IsLess<B>>::Output;
 /// Alias for the associated type of `IsEqual`: `Eq<A, B> = <A as IsEqual<B>>::Output`