From: Alex Lam S.L <alexlamsl@gmail.com>
Date: Sat, 19 Dec 2020 16:14:57 +0000 (+0000)
Subject: fix corner case in `objects` (#4416)
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=acc2d7d8455ed7302a78948b3c8678990dc1765a;p=UglifyJS.git

fix corner case in `objects` (#4416)

fixes #4415
---

diff --git a/lib/compress.js b/lib/compress.js
index 1aab3680..5081120c 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -10198,7 +10198,7 @@ merge(Compressor.prototype, {
                 flush();
                 values.push(prop);
             }
-            if (found && !generated && typeof key == "string" && /^[0-9]+$/.test(key)) {
+            if (found && !generated && typeof key == "string" && /^[1-9]*[0-9]$/.test(key)) {
                 generated = true;
                 if (keys.has(key)) prop = keys.get(key)[0];
                 prop.key = make_node(AST_Number, prop, {
diff --git a/test/compress/objects.js b/test/compress/objects.js
index a02dd084..d35f1538 100644
--- a/test/compress/objects.js
+++ b/test/compress/objects.js
@@ -413,3 +413,22 @@ issue_4380: {
     expect_stdout: "PASS"
     node_version: ">=4"
 }
+
+issue_4415: {
+    options = {
+        evaluate: true,
+        objects: true,
+    }
+    input: {
+        console.log({
+            ["00"]: "FAIL",
+        }[0] || "PASS");
+    }
+    expect: {
+        console.log({
+            "00": "FAIL",
+        }[0] || "PASS");
+    }
+    expect_stdout: "PASS"
+    node_version: ">=4"
+}