Stop importing int/float modules in libcore

8 files changed, 23 insertions, 39 deletions

diff --git a/src/libcore/benches/num/flt2dec/strategy/dragon.rs b/src/libcore/benches/num/flt2dec/strategy/dragon.rs
index 4052fec3381..4e1fd8bf753 100644
--- a/src/libcore/benches/num/flt2dec/strategy/dragon.rs
+++ b/src/libcore/benches/num/flt2dec/strategy/dragon.rs
@@ -1,6 +1,5 @@
 use super::super::*;
 use core::num::flt2dec::strategy::dragon::*;
-use std::{f64, i16};
 use test::Bencher;
 
 #[bench]
diff --git a/src/libcore/benches/num/flt2dec/strategy/grisu.rs b/src/libcore/benches/num/flt2dec/strategy/grisu.rs
index 495074747c2..77ca901a90a 100644
--- a/src/libcore/benches/num/flt2dec/strategy/grisu.rs
+++ b/src/libcore/benches/num/flt2dec/strategy/grisu.rs
@@ -1,6 +1,5 @@
 use super::super::*;
 use core::num::flt2dec::strategy::grisu::*;
-use std::{f64, i16};
 use test::Bencher;
 
 pub fn decode_finite<T: DecodableFloat>(v: T) -> Decoded {
diff --git a/src/libcore/tests/fmt/num.rs b/src/libcore/tests/fmt/num.rs
index a50c2b46a91..275a1d062ca 100644
--- a/src/libcore/tests/fmt/num.rs
+++ b/src/libcore/tests/fmt/num.rs
@@ -104,7 +104,6 @@ fn test_format_int() {
 
 #[test]
 fn test_format_int_exp_limits() {
-    use core::{i128, i16, i32, i64, i8, u128, u16, u32, u64, u8};
     assert_eq!(format!("{:e}", i8::MIN), "-1.28e2");
     assert_eq!(format!("{:e}", i8::MAX), "1.27e2");
     assert_eq!(format!("{:e}", i16::MIN), "-3.2768e4");
@@ -125,8 +124,6 @@ fn test_format_int_exp_limits() {
 
 #[test]
 fn test_format_int_exp_precision() {
-    use core::{i128, i16, i32, i64, i8};
-
     //test that float and integer match
     let big_int: u32 = 314_159_265;
     assert_eq!(format!("{:.1e}", big_int), format!("{:.1e}", f64::from(big_int)));
@@ -214,7 +211,6 @@ fn test_format_int_sign_padding() {
 
 #[test]
 fn test_format_int_twos_complement() {
-    use core::{i16, i32, i64, i8};
     assert_eq!(format!("{}", i8::MIN), "-128");
     assert_eq!(format!("{}", i16::MIN), "-32768");
     assert_eq!(format!("{}", i32::MIN), "-2147483648");
diff --git a/src/libcore/tests/iter.rs b/src/libcore/tests/iter.rs
index 98e3eeb982b..e0954a661c8 100644
--- a/src/libcore/tests/iter.rs
+++ b/src/libcore/tests/iter.rs
@@ -3,8 +3,6 @@
 use core::cell::Cell;
 use core::convert::TryFrom;
 use core::iter::*;
-use core::usize;
-use core::{i16, i8, isize};
 
 #[test]
 fn test_lt() {
@@ -2251,62 +2249,58 @@ fn test_range_inclusive_folds() {
 
 #[test]
 fn test_range_size_hint() {
-    use core::usize::MAX as UMAX;
     assert_eq!((0..0usize).size_hint(), (0, Some(0)));
     assert_eq!((0..100usize).size_hint(), (100, Some(100)));
-    assert_eq!((0..UMAX).size_hint(), (UMAX, Some(UMAX)));
+    assert_eq!((0..usize::MAX).size_hint(), (usize::MAX, Some(usize::MAX)));
 
-    let umax = u128::try_from(UMAX).unwrap();
+    let umax = u128::try_from(usize::MAX).unwrap();
     assert_eq!((0..0u128).size_hint(), (0, Some(0)));
     assert_eq!((0..100u128).size_hint(), (100, Some(100)));
-    assert_eq!((0..umax).size_hint(), (UMAX, Some(UMAX)));
-    assert_eq!((0..umax + 1).size_hint(), (UMAX, None));
+    assert_eq!((0..umax).size_hint(), (usize::MAX, Some(usize::MAX)));
+    assert_eq!((0..umax + 1).size_hint(), (usize::MAX, None));
 
-    use core::isize::{MAX as IMAX, MIN as IMIN};
     assert_eq!((0..0isize).size_hint(), (0, Some(0)));
     assert_eq!((-100..100isize).size_hint(), (200, Some(200)));
-    assert_eq!((IMIN..IMAX).size_hint(), (UMAX, Some(UMAX)));
+    assert_eq!((isize::MIN..isize::MAX).size_hint(), (usize::MAX, Some(usize::MAX)));
 
-    let imin = i128::try_from(IMIN).unwrap();
-    let imax = i128::try_from(IMAX).unwrap();
+    let imin = i128::try_from(isize::MIN).unwrap();
+    let imax = i128::try_from(isize::MAX).unwrap();
     assert_eq!((0..0i128).size_hint(), (0, Some(0)));
     assert_eq!((-100..100i128).size_hint(), (200, Some(200)));
-    assert_eq!((imin..imax).size_hint(), (UMAX, Some(UMAX)));
-    assert_eq!((imin..imax + 1).size_hint(), (UMAX, None));
+    assert_eq!((imin..imax).size_hint(), (usize::MAX, Some(usize::MAX)));
+    assert_eq!((imin..imax + 1).size_hint(), (usize::MAX, None));
 }
 
 #[test]
 fn test_range_inclusive_size_hint() {
-    use core::usize::MAX as UMAX;
     assert_eq!((1..=0usize).size_hint(), (0, Some(0)));
     assert_eq!((0..=0usize).size_hint(), (1, Some(1)));
     assert_eq!((0..=100usize).size_hint(), (101, Some(101)));
-    assert_eq!((0..=UMAX - 1).size_hint(), (UMAX, Some(UMAX)));
-    assert_eq!((0..=UMAX).size_hint(), (UMAX, None));
+    assert_eq!((0..=usize::MAX - 1).size_hint(), (usize::MAX, Some(usize::MAX)));
+    assert_eq!((0..=usize::MAX).size_hint(), (usize::MAX, None));
 
-    let umax = u128::try_from(UMAX).unwrap();
+    let umax = u128::try_from(usize::MAX).unwrap();
     assert_eq!((1..=0u128).size_hint(), (0, Some(0)));
     assert_eq!((0..=0u128).size_hint(), (1, Some(1)));
     assert_eq!((0..=100u128).size_hint(), (101, Some(101)));
-    assert_eq!((0..=umax - 1).size_hint(), (UMAX, Some(UMAX)));
-    assert_eq!((0..=umax).size_hint(), (UMAX, None));
-    assert_eq!((0..=umax + 1).size_hint(), (UMAX, None));
+    assert_eq!((0..=umax - 1).size_hint(), (usize::MAX, Some(usize::MAX)));
+    assert_eq!((0..=umax).size_hint(), (usize::MAX, None));
+    assert_eq!((0..=umax + 1).size_hint(), (usize::MAX, None));
 
-    use core::isize::{MAX as IMAX, MIN as IMIN};
     assert_eq!((0..=-1isize).size_hint(), (0, Some(0)));
     assert_eq!((0..=0isize).size_hint(), (1, Some(1)));
     assert_eq!((-100..=100isize).size_hint(), (201, Some(201)));
-    assert_eq!((IMIN..=IMAX - 1).size_hint(), (UMAX, Some(UMAX)));
-    assert_eq!((IMIN..=IMAX).size_hint(), (UMAX, None));
+    assert_eq!((isize::MIN..=isize::MAX - 1).size_hint(), (usize::MAX, Some(usize::MAX)));
+    assert_eq!((isize::MIN..=isize::MAX).size_hint(), (usize::MAX, None));
 
-    let imin = i128::try_from(IMIN).unwrap();
-    let imax = i128::try_from(IMAX).unwrap();
+    let imin = i128::try_from(isize::MIN).unwrap();
+    let imax = i128::try_from(isize::MAX).unwrap();
     assert_eq!((0..=-1i128).size_hint(), (0, Some(0)));
     assert_eq!((0..=0i128).size_hint(), (1, Some(1)));
     assert_eq!((-100..=100i128).size_hint(), (201, Some(201)));
-    assert_eq!((imin..=imax - 1).size_hint(), (UMAX, Some(UMAX)));
-    assert_eq!((imin..=imax).size_hint(), (UMAX, None));
-    assert_eq!((imin..=imax + 1).size_hint(), (UMAX, None));
+    assert_eq!((imin..=imax - 1).size_hint(), (usize::MAX, Some(usize::MAX)));
+    assert_eq!((imin..=imax).size_hint(), (usize::MAX, None));
+    assert_eq!((imin..=imax + 1).size_hint(), (usize::MAX, None));
 }
 
 #[test]
diff --git a/src/libcore/tests/num/dec2flt/mod.rs b/src/libcore/tests/num/dec2flt/mod.rs
index a1fa5556ae5..1c172f49c27 100644
--- a/src/libcore/tests/num/dec2flt/mod.rs
+++ b/src/libcore/tests/num/dec2flt/mod.rs
@@ -1,7 +1,5 @@
 #![allow(overflowing_literals)]
 
-use std::{f32, f64, i64};
-
 mod parse;
 mod rawfp;
 
diff --git a/src/libcore/tests/num/flt2dec/mod.rs b/src/libcore/tests/num/flt2dec/mod.rs
index e945d9c4a54..ae892e3b0bf 100644
--- a/src/libcore/tests/num/flt2dec/mod.rs
+++ b/src/libcore/tests/num/flt2dec/mod.rs
@@ -1,4 +1,4 @@
-use std::{f32, f64, fmt, i16, str};
+use std::{fmt, str};
 
 use core::num::flt2dec::{decode, DecodableFloat, Decoded, FullDecoded};
 use core::num::flt2dec::{round_up, Formatted, Part, Sign, MAX_SIG_DIGITS};
diff --git a/src/libcore/tests/num/flt2dec/random.rs b/src/libcore/tests/num/flt2dec/random.rs
index ecdfc4b30a5..5b050a2c356 100644
--- a/src/libcore/tests/num/flt2dec/random.rs
+++ b/src/libcore/tests/num/flt2dec/random.rs
@@ -1,6 +1,5 @@
 #![cfg(not(target_arch = "wasm32"))]
 
-use std::i16;
 use std::str;
 
 use core::num::flt2dec::strategy::grisu::format_exact_opt;
diff --git a/src/libcore/tests/num/int_macros.rs b/src/libcore/tests/num/int_macros.rs
index 48a49073b2c..8396a0dd62d 100644
--- a/src/libcore/tests/num/int_macros.rs
+++ b/src/libcore/tests/num/int_macros.rs
@@ -2,7 +2,6 @@ macro_rules! int_module {
     ($T:ident, $T_i:ident) => {
         #[cfg(test)]
         mod tests {
-            use core::isize;
             use core::mem;
             use core::ops::{BitAnd, BitOr, BitXor, Not, Shl, Shr};
             use core::$T_i::*;