From f436baa102c7f5fb5d4b56ad3c876e303b47900a Mon Sep 17 00:00:00 2001
From: gdh1995 <gdh1995@qq.com>
Date: Thu, 29 Jul 2021 12:09:05 +0800
Subject: [PATCH 1/2] fix: functions in global_defs may be compressed
 mistakenly

---
 lib/compress/inference.js | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/lib/compress/inference.js b/lib/compress/inference.js
index 8853a838f..22b9b2c71 100644
--- a/lib/compress/inference.js
+++ b/lib/compress/inference.js
@@ -119,6 +119,7 @@ import {
     has_annotation,
     HOP
 } from "../utils/index.js";
+import { parse } from "../parse.js";
 import { make_node_from_constant, make_sequence, best_of_expression, read_property } from "./common.js";
 
 import { INLINED, UNDEFINED, has_flag } from "./compressor-flags.js";
@@ -688,7 +689,17 @@ export function is_lhs(node, parent) {
 
 (function(def_find_defs) {
     function to_node(value, orig) {
-        if (value instanceof AST_Node) return make_node(value.CTOR, orig, value);
+        if (value instanceof AST_Node) {
+            if (!(value instanceof AST_Constant)) {
+                // Value may be a function, an array including functions and even a complex assign / block expression,
+                // so it should never be shared in different places.
+                // Otherwise wrong information may be used in the compression phase
+                value = parse(value.print_to_string(), {
+                    expression: true
+                });
+            }
+            return make_node(value.CTOR, orig, value);
+        }
         if (Array.isArray(value)) return make_node(AST_Array, orig, {
             elements: value.map(function(value) {
                 return to_node(value, orig);

From 1caaba9e73679fe1f7488a8ffaf98eb3c0cb1604 Mon Sep 17 00:00:00 2001
From: gdh1995 <gdh1995@qq.com>
Date: Thu, 29 Jul 2021 12:21:51 +0800
Subject: [PATCH 2/2] fix: use node.clone instead of re-parsing

---
 lib/compress/inference.js | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/lib/compress/inference.js b/lib/compress/inference.js
index 22b9b2c71..0b825bfdd 100644
--- a/lib/compress/inference.js
+++ b/lib/compress/inference.js
@@ -119,7 +119,6 @@ import {
     has_annotation,
     HOP
 } from "../utils/index.js";
-import { parse } from "../parse.js";
 import { make_node_from_constant, make_sequence, best_of_expression, read_property } from "./common.js";
 
 import { INLINED, UNDEFINED, has_flag } from "./compressor-flags.js";
@@ -694,9 +693,7 @@ export function is_lhs(node, parent) {
                 // Value may be a function, an array including functions and even a complex assign / block expression,
                 // so it should never be shared in different places.
                 // Otherwise wrong information may be used in the compression phase
-                value = parse(value.print_to_string(), {
-                    expression: true
-                });
+                value = value.clone(true);
             }
             return make_node(value.CTOR, orig, value);
         }