From 54e0bfd87831c6269f9f34d6bc9e370a73936210 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EB=8F=99=EC=9C=A4?= <kdy1997.dev@gmail.com>
Date: Mon, 3 Aug 2020 00:47:23 +0900
Subject: [PATCH] Update swc_ecma_utils (#927)

---
 .../transforms/tests/typescript_strip.rs      | 16 ++++++++++++++
 ecmascript/utils/Cargo.toml                   |  2 +-
 ecmascript/utils/src/lib.rs                   | 22 +++++++++----------
 3 files changed, 28 insertions(+), 12 deletions(-)

diff --git a/ecmascript/transforms/tests/typescript_strip.rs b/ecmascript/transforms/tests/typescript_strip.rs
index 3a7da19afe4..4e979eb852f 100644
--- a/ecmascript/transforms/tests/typescript_strip.rs
+++ b/ecmascript/transforms/tests/typescript_strip.rs
@@ -679,3 +679,19 @@ to!(
 }",
     "export abstract class Kernel {}"
 );
+
+to!(
+    issue_926,
+    "class A extends Object {
+  constructor(public a, private b) {
+    super();
+  }
+}",
+    "class A extends Object {
+    constructor(a, b){
+        super();
+        this.a = a;
+        this.b = b;
+    }
+}"
+);
diff --git a/ecmascript/utils/Cargo.toml b/ecmascript/utils/Cargo.toml
index aa5ac134170..870ff4ef7f1 100644
--- a/ecmascript/utils/Cargo.toml
+++ b/ecmascript/utils/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "swc_ecma_utils"
-version = "0.16.0"
+version = "0.16.1"
 authors = ["강동윤 <kdy1997.dev@gmail.com>"]
 license = "Apache-2.0/MIT"
 repository = "https://github.com/swc-project/swc.git"
diff --git a/ecmascript/utils/src/lib.rs b/ecmascript/utils/src/lib.rs
index 47cb2572711..1bd6108b295 100644
--- a/ecmascript/utils/src/lib.rs
+++ b/ecmascript/utils/src/lib.rs
@@ -1458,20 +1458,20 @@ pub fn prepend_stmts<T: StmtLike>(
 ) {
     let idx = to
         .iter()
-        .position(|item| match item.as_stmt() {
-            Some(&Stmt::Expr(ExprStmt { ref expr, .. }))
-                if match &**expr {
-                    Expr::Lit(Lit::Str(..)) => true,
+        .position(|item| {
+            match item.as_stmt() {
+                Some(&Stmt::Expr(ExprStmt { ref expr, .. })) => match &**expr {
+                    Expr::Lit(Lit::Str(..)) => return false,
                     Expr::Call(expr) => match expr.callee {
-                        ExprOrSuper::Super(_) => true,
-                        ExprOrSuper::Expr(_) => false,
+                        ExprOrSuper::Super(_) => return false,
+                        ExprOrSuper::Expr(_) => {}
                     },
-                    _ => false,
-                } =>
-            {
-                false
+                    _ => {}
+                },
+                _ => {}
             }
-            _ => true,
+
+            true
         })
         .unwrap_or(to.len());