From 7a93a26aad24ebbdab28906316ccbc6371becd5d Mon Sep 17 00:00:00 2001
From: rchaser53 <tayoshizawa29@gmail.com>
Date: Mon, 6 May 2019 00:01:13 +0900
Subject: [PATCH] correct to get wrong BytePos

---
 src/types.rs               | 2 +-
 tests/target/issue-3539.rs | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)
 create mode 100644 tests/target/issue-3539.rs

diff --git a/src/types.rs b/src/types.rs
index f939aeae35dd..55367805ca31 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -320,7 +320,7 @@ where
     let list_lo = context.snippet_provider.span_after(span, "(");
     let (list_str, tactic) = if inputs.len() == 0 {
         let tactic = get_tactics(&[], &output, shape);
-        let list_hi = context.snippet_provider.span_before_last(span, ")");
+        let list_hi = context.snippet_provider.span_before(span, ")");
         let comment = context
             .snippet_provider
             .span_to_snippet(mk_sp(list_lo, list_hi))?
diff --git a/tests/target/issue-3539.rs b/tests/target/issue-3539.rs
new file mode 100644
index 000000000000..aa2fa72ece32
--- /dev/null
+++ b/tests/target/issue-3539.rs
@@ -0,0 +1,8 @@
+use std::io::Error;
+
+fn main() {
+    let _read_num: fn() -> Result<(i32), Error> = || -> Result<(i32), Error> {
+        let a = 1;
+        Ok(a)
+    };
+}