enhance collapse_vars (#3621)

2019-12-02 15:25:38 +08:00
parent bef856addb
commit 500e31e03b
2 changed files with 93 additions and 27 deletions
--- a/test/compress/collapse_vars.js
+++ b/test/compress/collapse_vars.js
@@ -2578,6 +2578,23 @@ chained_3: {
    expect_stdout: "2"
 }

+chained_4: {
+    options = {
+        collapse_vars: true,
+    }
+    input: {
+        var a = "foo", b = 42;
+        var b = void (b = a);
+        console.log(a, b);
+    }
+    expect: {
+        var a = "foo", b = 42;
+        var b = void (b = a);
+        console.log(a, b);
+    }
+    expect_stdout: "foo undefined"
+}
+
 boolean_binary_1: {
    options = {
        collapse_vars: true,