Check length of break and continue expressions

src/expr.rs

@@ -137,14 +137,14 @@ fn rewrite(&self, context: &RewriteContext, width: usize, offset: Indent) -> Opt
                     Some(ident) => format!(" {}", ident.node),
                     None => String::new(),
                 };
-                Some(format!("continue{}", id_str))
+                wrap_str(format!("continue{}", id_str), context.config.max_width, width, offset)
             }
             ast::ExprKind::Break(ref opt_ident) => {
                 let id_str = match *opt_ident {
                     Some(ident) => format!(" {}", ident.node),
                     None => String::new(),
                 };
-                Some(format!("break{}", id_str))
+                wrap_str(format!("break{}", id_str), context.config.max_width, width, offset)
             }
             ast::ExprKind::Closure(capture, ref fn_decl, ref body) => {
                 rewrite_closure(capture, fn_decl, body, self.span, context, width, offset)

tests/source/issue-855.rs

@@ -0,0 +1,20 @@
+fn main() {
+    'running: loop {
+        for event in event_pump.poll_iter() {
+            match event {
+                Event::Quit {..} | Event::KeyDown { keycode: Some(Keycode::Escape), .. } => break 'running,
+            }
+        }
+    }
+}
+
+fn main2() {
+    'running: loop {
+        for event in event_pump.poll_iter() {
+            match event {
+                Event::Quit {..} |
+                Event::KeyDownXXXXXXXXXXXXX { keycode: Some(Keycode::Escape), .. } => break 'running,
+            }
+        }
+    }
+}

tests/target/issue-855.rs

@@ -0,0 +1,23 @@
+fn main() {
+    'running: loop {
+        for event in event_pump.poll_iter() {
+            match event {
+                Event::Quit { .. } |
+                Event::KeyDown { keycode: Some(Keycode::Escape), .. } => break 'running,
+            }
+        }
+    }
+}
+
+fn main2() {
+    'running: loop {
+        for event in event_pump.poll_iter() {
+            match event {
+                Event::Quit { .. } |
+                Event::KeyDownXXXXXXXXXXXXX { keycode: Some(Keycode::Escape), .. } => {
+                    break 'running
+                }
+            }
+        }
+    }
+}