Extract floating_point_operand_info() function

Author: mgr-inz-rafal

clippy_lints/src/modulo_arithmetic.rs

@@ -6,6 +6,7 @@ use rustc::hir::*;
 use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
 use rustc::ty::{self};
 use rustc_session::declare_tool_lint;
+use std::fmt::Display;
 
 declare_clippy_lint! {
     /// **What it does:** Checks for modulo arithemtic.
@@ -57,24 +58,24 @@ fn analyze_operand(operand: &Expr, cx: &LateContext<'_, '_>, expr: &Expr) -> Opt
             _ => {},
         },
         Some((Constant::F32(f), _)) => {
-            return Some(OperandInfo {
-                string_representation: Some(format!("{:.3}", f)),
-                is_negative: f < 0.0,
-                is_integral: false,
-            });
+            return Some(floating_point_operand_info(&f));
         },
         Some((Constant::F64(f), _)) => {
-            return Some(OperandInfo {
-                string_representation: Some(format!("{:.3}", f)),
-                is_negative: f < 0.0,
-                is_integral: false,
-            });
+            return Some(floating_point_operand_info(&f));
         },
         _ => {},
     }
     None
 }
 
+fn floating_point_operand_info<T: Display + PartialOrd + From<f32>>(f: &T) -> OperandInfo {
+    OperandInfo {
+        string_representation: Some(format!("{:.3}", *f)),
+        is_negative: *f < 0.0.into(),
+        is_integral: false,
+    }
+}
+
 fn might_have_negative_value(t: &ty::TyS<'_>) -> bool {
     t.is_signed() || t.is_floating_point()
 }