Merge pull request #308 from dtolnay/rightalign

Recognize right aligned line numbers

Author: dtolnay

src/normalize.rs

@@ -634,8 +634,12 @@ fn indented_line_kind(
         return IndentedLineKind::Code(spaces);
     }
 
-    let digits = line.bytes().take_while(u8::is_ascii_digit).count();
-    let spaces = line[digits..].bytes().take_while(|b| *b == b' ').count();
+    let mut spaces = line.bytes().take_while(is_space).count();
+    let digits = line[spaces..]
+        .bytes()
+        .take_while(u8::is_ascii_digit)
+        .count();
+    spaces += line[spaces + digits..].bytes().take_while(is_space).count();
     let rest = &line[digits + spaces..];
     if spaces > 0
         && (rest == "|"

src/tests/right-aligned-line-number.rs

@@ -0,0 +1,21 @@
+test_normalize! {
+    INPUT="tests/ui-testing-optout.rs"
+"
+error[E0412]: cannot find type `F` in this scope
+  --> $DIR/ui-testing-optout.rs:92:10
+   |
+ 4 | type A = B;
+   | ----------- similarly named type alias `A` defined here
+...
+92 | type E = F;
+   |          ^ help: a type alias with a similar name exists: `A`
+" "
+error[E0412]: cannot find type `F` in this scope
+  --> $DIR/ui-testing-optout.rs:92:10
+   |
+ 4 | type A = B;
+   | ----------- similarly named type alias `A` defined here
+...
+92 | type E = F;
+   |          ^ help: a type alias with a similar name exists: `A`
+"}