fix corner case in merge_vars (#4299)

fixes #4298
2020-11-18 15:43:55 +00:00
parent 35283e5dd1
commit f6a83f7944
2 changed files with 45 additions and 3 deletions
--- a/test/compress/destructured.js
+++ b/test/compress/destructured.js
@@ -1490,10 +1490,10 @@ issue_4294: {
    expect: {
        A = "PASS";
        (function() {
-            var a = function({
-                [a]: {},
+            var b = function({
+                [b]: {},
            }) {}({
-                [a]: 0,
+                [b]: 0,
            });
            var b = A;
            console.log(b);
@@ -1502,3 +1502,41 @@ issue_4294: {
    expect_stdout: "PASS"
    node_version: ">=6"
 }
+
+issue_4298: {
+    options = {
+        merge_vars: true,
+    }
+    input: {
+        (function() {
+            var a = {
+                object: "PASS",
+            };
+            function f({
+                [typeof a]: b,
+            }) {
+                var a = b;
+                return a;
+            }
+            var c = f(a);
+            console.log(c);
+        })();
+    }
+    expect: {
+        (function() {
+            var a = {
+                object: "PASS",
+            };
+            function f({
+                [typeof a]: b,
+            }) {
+                var a = b;
+                return a;
+            }
+            var c = f(a);
+            console.log(c);
+        })();
+    }
+    expect_stdout: "PASS"
+    node_version: ">=6"
+}