fix corner case with `for [await]...of` (#4872)

2 files changed, 15 insertions, 0 deletions

diff --git a/lib/parse.js b/lib/parse.js
index 415a20ee..dd8e70e9 100644
--- a/lib/parse.js
+++ b/lib/parse.js
@@ -1240,6 +1240,7 @@ function parse($TEXT, options) {
     }
 
     function for_enum(ctor, init) {
+        handle_regexp();
         var obj = expression();
         expect(")");
         return new ctor({
diff --git a/test/compress/loops.js b/test/compress/loops.js
index 4ba0d075..c1f075cc 100644
--- a/test/compress/loops.js
+++ b/test/compress/loops.js
@@ -852,6 +852,20 @@ for_async_of: {
     node_version: ">=0.12 <16"
 }
 
+for_of_regexp: {
+    input: {
+        for (var a of /foo/);
+    }
+    expect_exact: "for(var a of/foo/);"
+}
+
+for_await_of_regexp: {
+    input: {
+        for await (var a of /foo/);
+    }
+    expect_exact: "for await(var a of/foo/);"
+}
+
 issue_3631_1: {
     options = {
         dead_code: true,