Use special Debug format when start > end

bonega · bonega · commit da92cd6dcf17 · 2021-09-09T10:41:18.000+02:00
diff --git a/compiler/rustc_target/src/abi/mod.rs b/compiler/rustc_target/src/abi/mod.rs
@@ -784,7 +784,11 @@ impl WrappingRange {
 
 impl fmt::Debug for WrappingRange {
     fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(fmt, "{}..={}", self.start, self.end)?;
+        if self.start > self.end {
+            write!(fmt, "(..={}) | ({}..)", self.end, self.start)?;
+        } else {
+            write!(fmt, "{}..={}", self.start, self.end)?;
+        }
         Ok(())
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -784,7 +784,11 @@ impl WrappingRange {`
`784`	`784`
`785`	`785`	`impl fmt::Debug for WrappingRange {`
`786`	`786`	`fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {`
`787`		`- write!(fmt, "{}..={}", self.start, self.end)?;`
	`787`	`+ if self.start > self.end {`
	`788`	`+ write!(fmt, "(..={}) \| ({}..)", self.end, self.start)?;`
	`789`	`+ } else {`
	`790`	`+ write!(fmt, "{}..={}", self.start, self.end)?;`
	`791`	`+ }`
`788`	`792`	`Ok(())`
`789`	`793`	`}`
`790`	`794`	`}`