From 60f8a7f91c11c2be0bb980c0e72c8ed1fa4c0e36 Mon Sep 17 00:00:00 2001
From: Stephen Chung <schungx@live.com>
Date: Mon, 29 Mar 2021 11:36:15 +0800
Subject: [PATCH] Remove Float trait.

---
 src/ast.rs                   | 3 ---
 src/dynamic.rs               | 2 +-
 src/fn_builtin.rs            | 4 ----
 src/packages/arithmetic.rs   | 4 ----
 src/packages/math_basic.rs   | 4 ----
 src/packages/string_basic.rs | 6 ------
 6 files changed, 1 insertion(+), 22 deletions(-)

diff --git a/src/ast.rs b/src/ast.rs
index 02f30e1f..86d0e017 100644
--- a/src/ast.rs
+++ b/src/ast.rs
@@ -1480,9 +1480,6 @@ impl fmt::Debug for FloatWrapper {
 impl fmt::Display for FloatWrapper {
     #[inline(always)]
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        #[cfg(feature = "no_std")]
-        use num_traits::Float;
-
         let abs = self.0.abs();
         if abs > 10000000000000.0 || abs < 0.0000000000001 {
             write!(f, "{:e}", self.0)
diff --git a/src/dynamic.rs b/src/dynamic.rs
index f32b68b7..477075af 100644
--- a/src/dynamic.rs
+++ b/src/dynamic.rs
@@ -8,7 +8,7 @@ use crate::stdlib::{
     fmt,
     hash::{Hash, Hasher},
     ops::{Deref, DerefMut},
-    string::String,
+    string::{String, ToString},
 };
 use crate::{FnPtr, ImmutableString, INT};
 
diff --git a/src/fn_builtin.rs b/src/fn_builtin.rs
index 4b79cc62..8e00463c 100644
--- a/src/fn_builtin.rs
+++ b/src/fn_builtin.rs
@@ -11,10 +11,6 @@ use crate::FLOAT;
 #[cfg(feature = "decimal")]
 use rust_decimal::Decimal;
 
-#[cfg(feature = "no_std")]
-#[cfg(not(feature = "no_float"))]
-use num_traits::float::Float;
-
 /// Is the type a numeric type?
 #[inline(always)]
 fn is_numeric(type_id: TypeId) -> bool {
diff --git a/src/packages/arithmetic.rs b/src/packages/arithmetic.rs
index 1346a5b3..07d838b9 100644
--- a/src/packages/arithmetic.rs
+++ b/src/packages/arithmetic.rs
@@ -7,10 +7,6 @@ use crate::{def_package, EvalAltResult, Position, INT};
 #[cfg(not(feature = "no_float"))]
 use crate::FLOAT;
 
-#[cfg(feature = "no_std")]
-#[cfg(not(feature = "no_float"))]
-use num_traits::float::Float;
-
 #[inline(always)]
 pub fn make_err(msg: impl Into<String>) -> Box<EvalAltResult> {
     EvalAltResult::ErrorArithmetic(msg.into(), Position::NONE).into()
diff --git a/src/packages/math_basic.rs b/src/packages/math_basic.rs
index 2ed73a62..e229e282 100644
--- a/src/packages/math_basic.rs
+++ b/src/packages/math_basic.rs
@@ -9,10 +9,6 @@ use crate::FLOAT;
 #[cfg(not(feature = "no_float"))]
 use crate::result::EvalAltResult;
 
-#[cfg(feature = "no_std")]
-#[cfg(not(feature = "no_float"))]
-use num_traits::float::Float;
-
 #[cfg(not(feature = "no_float"))]
 use crate::stdlib::format;
 
diff --git a/src/packages/string_basic.rs b/src/packages/string_basic.rs
index 3861a0a2..71341c44 100644
--- a/src/packages/string_basic.rs
+++ b/src/packages/string_basic.rs
@@ -57,9 +57,6 @@ mod print_debug_functions {
     pub mod float_functions {
         #[rhai_fn(name = "print", name = "to_string")]
         pub fn print_f64(number: f64) -> ImmutableString {
-            #[cfg(feature = "no_std")]
-            use num_traits::Float;
-
             let abs = number.abs();
             if abs > 10000000000000.0 || abs < 0.0000000000001 {
                 format!("{:e}", number).into()
@@ -69,9 +66,6 @@ mod print_debug_functions {
         }
         #[rhai_fn(name = "print", name = "to_string")]
         pub fn print_f32(number: f32) -> ImmutableString {
-            #[cfg(feature = "no_std")]
-            use num_traits::Float;
-
             let abs = number.abs();
             if abs > 10000000000000.0 || abs < 0.0000000000001 {
                 format!("{:e}", number).into()