From de84f71b29e13a7835e484891ed15d1f9b227d4b Mon Sep 17 00:00:00 2001
From: Taco de Wolff <tacodewolff@gmail.com>
Date: Mon, 31 Jul 2023 10:46:14 +0200
Subject: [PATCH] JS: keep bang comments, fixes #552

---
 go.mod   |  2 +-
 go.sum   |  7 ++-----
 js/js.go | 18 ++++++------------
 3 files changed, 9 insertions(+), 18 deletions(-)

diff --git a/go.mod b/go.mod
index 64cc1b5f75..17a72961b4 100644
--- a/go.mod
+++ b/go.mod
@@ -8,7 +8,7 @@ require (
 	github.com/fsnotify/fsnotify v1.6.0
 	github.com/matryer/try v0.0.0-20161228173917-9ac251b645a2
 	github.com/spf13/pflag v1.0.5
-	github.com/tdewolff/parse/v2 v2.6.6
+	github.com/tdewolff/parse/v2 v2.6.7
 	github.com/tdewolff/test v1.0.9
 )
 
diff --git a/go.sum b/go.sum
index 48d893dfff..cbb8593f2e 100644
--- a/go.sum
+++ b/go.sum
@@ -10,13 +10,10 @@ github.com/matryer/try v0.0.0-20161228173917-9ac251b645a2 h1:JAEbJn3j/FrhdWA9jW8
 github.com/matryer/try v0.0.0-20161228173917-9ac251b645a2/go.mod h1:0KeJpeMD6o+O4hW7qJOT7vyQPKrWmj26uf5wMc/IiIs=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
-github.com/tdewolff/parse/v2 v2.6.6 h1:Yld+0CrKUJaCV78DL1G2nk3C9lKrxyRTux5aaK/AkDo=
-github.com/tdewolff/parse/v2 v2.6.6/go.mod h1:woz0cgbLwFdtbjJu8PIKxhW05KplTFQkOdX78o+Jgrs=
-github.com/tdewolff/test v1.0.7/go.mod h1:6DAvZliBAAnD7rhVgwaM7DE5/d9NMOAJ09SqYqeK4QE=
+github.com/tdewolff/parse/v2 v2.6.7 h1:WrFllrqmzAcrKHzoYgMupqgUBIfBVOb0yscFzDf8bBg=
+github.com/tdewolff/parse/v2 v2.6.7/go.mod h1:XHDhaU6IBgsryfdnpzUXBlT6leW/l25yrFBTEb4eIyM=
 github.com/tdewolff/test v1.0.9 h1:SswqJCmeN4B+9gEAi/5uqT0qpi1y2/2O47V/1hhGZT0=
 github.com/tdewolff/test v1.0.9/go.mod h1:6DAvZliBAAnD7rhVgwaM7DE5/d9NMOAJ09SqYqeK4QE=
 golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ=
-golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.10.0 h1:SqMFp9UcQJZa+pmYuAKjd9xq1f0j5rLcDIk0mj4qAsA=
 golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
diff --git a/js/js.go b/js/js.go
index 1f6cefeff4..e9289bdb17 100644
--- a/js/js.go
+++ b/js/js.go
@@ -43,18 +43,6 @@ func (o *Minifier) Minify(_ *minify.M, w io.Writer, r io.Reader, _ map[string]st
 		return err
 	}
 
-	// license comments
-	for _, comment := range ast.Comments {
-		if 3 < len(comment) && comment[2] == '!' {
-			w.Write(comment)
-			if comment[1] == '/' {
-				w.Write(newlineBytes)
-			}
-		} else if 2 < len(comment) && comment[0] == '#' && comment[1] == '!' {
-			w.Write(comment)
-		}
-	}
-
 	m := &jsMinifier{
 		o:       o,
 		w:       w,
@@ -409,6 +397,12 @@ func (m *jsMinifier) minifyStmt(i js.IStmt) {
 		stmt.Value[len(stmt.Value)-1] = '"'
 		m.write(stmt.Value)
 		m.requireSemicolon()
+	case *js.Comment:
+		// bang comment
+		m.write(stmt.Value)
+		if stmt.Value[1] == '/' {
+			m.write(newlineBytes)
+		}
 	}
 }