1 files changed, 47 insertions, 0 deletions
diff --git a/src/tools/rustfmt/tests/target/issue_3853.rs b/src/tools/rustfmt/tests/target/issue_3853.rs
new file mode 100644
index 000000000..eae59eff9
--- /dev/null
+++ b/src/tools/rustfmt/tests/target/issue_3853.rs
@@ -0,0 +1,47 @@
+fn by_ref_with_block_before_ident() {
+    if let Some(ref /*def*/ state) = foo {
+        println!("asdfasdfasdf");
+    }
+}
+
+fn mut_block_before_ident() {
+    if let Some(mut /*def*/ state) = foo {
+        println!("123");
+    }
+}
+
+fn ref_and_mut_blocks_before_ident() {
+    if let Some(ref /*abc*/ mut /*def*/ state) = foo {
+        println!("deefefefefefwea");
+    }
+}
+
+fn sub_pattern() {
+    let foo @ /*foo*/ bar(f) = 42;
+}
+
+fn no_prefix_block_before_ident() {
+    if let Some(/*def*/ state) = foo {
+        println!("129387123123");
+    }
+}
+
+fn issue_3853() {
+    if let Some(ref /*mut*/ state) = foo {}
+}
+
+fn double_slash_comment_between_lhs_and_rhs() {
+    if let Some(e) =
+        // self.foo.bar(e, tx)
+        packet.transaction.state.committed
+    {
+        // body
+        println!("a2304712836123");
+    }
+}
+
+fn block_comment_between_lhs_and_rhs() {
+    if let Some(ref /*def*/ mut /*abc*/ state) = /*abc*/ foo {
+        println!("asdfasdfasdf");
+    }
+}