From d66d86f20bc231bd8d305ee5ba05efa77aa8b6be Mon Sep 17 00:00:00 2001
From: "Alex Lam S.L" <alexlamsl@gmail.com>
Date: Thu, 8 Feb 2018 03:31:51 +0800
Subject: account for exceptions in `AST_Assign.left` (#2892)

fixes #2891
---
 test/compress/collapse_vars.js | 56 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

(limited to 'test')

diff --git a/test/compress/collapse_vars.js b/test/compress/collapse_vars.js
index 19db6058..ed1d8d97 100644
--- a/test/compress/collapse_vars.js
+++ b/test/compress/collapse_vars.js
@@ -4461,3 +4461,59 @@ issue_2878: {
     }
     expect_stdout: "1"
 }
+
+issue_2891_1: {
+    options = {
+        collapse_vars: true,
+    }
+    input: {
+        var a = "PASS", b;
+        try {
+            b = c.p = 0;
+            a = "FAIL";
+            b();
+        } catch (e) {
+        }
+        console.log(a);
+    }
+    expect: {
+        var a = "PASS", b;
+        try {
+            b = c.p = 0;
+            a = "FAIL";
+            b();
+        } catch (e) {
+        }
+        console.log(a);
+    }
+    expect_stdout: "PASS"
+}
+
+issue_2891_2: {
+    options = {
+        collapse_vars: true,
+    }
+    input: {
+        "use strict";
+        var a = "PASS", b;
+        try {
+            b = c = 0;
+            a = "FAIL";
+            b();
+        } catch (e) {
+        }
+        console.log(a);
+    }
+    expect: {
+        "use strict";
+        var a = "PASS", b;
+        try {
+            b = c = 0;
+            a = "FAIL";
+            b();
+        } catch (e) {
+        }
+        console.log(a);
+    }
+    expect_stdout: true
+}
-- 
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