From 871a0c9c0ea72aa95eb83e2e9010bdc05403f7d4 Mon Sep 17 00:00:00 2001
From: Yiyu Lin <linyiyu1992@gmail.com>
Date: Sat, 16 May 2020 03:26:16 +0800
Subject: fix some clippy warning (#5462)

---
 cli/ops/fs.rs   | 12 ++++++------
 cli/swc_util.rs |  2 +-
 2 files changed, 7 insertions(+), 7 deletions(-)

(limited to 'cli')

diff --git a/cli/ops/fs.rs b/cli/ops/fs.rs
index 573058d70..116366c8d 100644
--- a/cli/ops/fs.rs
+++ b/cli/ops/fs.rs
@@ -833,9 +833,9 @@ fn op_make_temp_dir(
     // We can't assume that paths are always valid utf8 strings.
     let path = make_temp(
       // Converting Option<String> to Option<&str>
-      dir.as_ref().map(|x| &**x),
-      prefix.as_ref().map(|x| &**x),
-      suffix.as_ref().map(|x| &**x),
+      dir.as_deref(),
+      prefix.as_deref(),
+      suffix.as_deref(),
       true,
     )?;
     let path_str = into_string(path.into_os_string())?;
@@ -864,9 +864,9 @@ fn op_make_temp_file(
     // We can't assume that paths are always valid utf8 strings.
     let path = make_temp(
       // Converting Option<String> to Option<&str>
-      dir.as_ref().map(|x| &**x),
-      prefix.as_ref().map(|x| &**x),
-      suffix.as_ref().map(|x| &**x),
+      dir.as_deref(),
+      prefix.as_deref(),
+      suffix.as_deref(),
       false,
     )?;
     let path_str = into_string(path.into_os_string())?;
diff --git a/cli/swc_util.rs b/cli/swc_util.rs
index a2e5d50fd..f579cbd36 100644
--- a/cli/swc_util.rs
+++ b/cli/swc_util.rs
@@ -161,7 +161,7 @@ impl AstParser {
     self
       .comments
       .take_leading_comments(span.lo())
-      .unwrap_or_else(|| vec![])
+      .unwrap_or_else(Vec::new)
   }
 }
 
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