Drop exponent suggestion when 0

dswij · dswij · commit 42f2304ce481 · 2021-10-06T15:02:38.000+08:00
This commit changes numeric literal formatting to drop exponent when
exponent is 0.
diff --git a/clippy_utils/src/numeric_literal.rs b/clippy_utils/src/numeric_literal.rs
@@ -157,8 +157,10 @@ impl<'a> NumericLiteral<'a> {
         }
 
         if let Some((separator, exponent)) = self.exponent {
-            output.push_str(separator);
-            Self::group_digits(&mut output, exponent, group_size, true, false);
+            if exponent != "0" {
+                output.push_str(separator);
+                Self::group_digits(&mut output, exponent, group_size, true, false);
+            }
         }
 
         if let Some(suffix) = self.suffix {

Original file line number	Diff line number	Diff line change
`@@ -157,8 +157,10 @@ impl<'a> NumericLiteral<'a> {`
`157`	`157`	`}`
`158`	`158`
`159`	`159`	`if let Some((separator, exponent)) = self.exponent {`
`160`		`- output.push_str(separator);`
`161`		`- Self::group_digits(&mut output, exponent, group_size, true, false);`
	`160`	`+ if exponent != "0" {`
	`161`	`+ output.push_str(separator);`
	`162`	`+ Self::group_digits(&mut output, exponent, group_size, true, false);`
	`163`	`+ }`
`162`	`164`	`}`
`163`	`165`
`164`	`166`	`if let Some(suffix) = self.suffix {`