fix corner cases in inline & unused (#4509)

fixes #4508
2021-01-05 16:15:12 +00:00
parent 6eceac0966
commit 7ebfb22d16
3 changed files with 46 additions and 20 deletions
--- a/test/compress/drop-unused.js
+++ b/test/compress/drop-unused.js
@@ -2669,8 +2669,7 @@ issue_3956: {
        })();
    }
    expect: {
-        var c, d;
-        c += 0,
+        var d;
        console.log(NaN),
        d = 1 ^ console.log(1),
        console.log(d);
@@ -2703,13 +2702,13 @@ issue_3962_1: {
    }
    expect: {
        var a = 0;
-        a = (function(c) {
+        (function(c) {
            do {
                console;
                0..toString();
            } while (0);
            if (c) console.log("PASS");
-        }(1), 0);
+        })(1);
        void 0;
    }
    expect_stdout: "PASS"
@@ -2736,13 +2735,13 @@ issue_3962_2: {
    }
    expect: {
        var a = 0;
-        a = (function(c) {
+        (function(c) {
            do {
                console;
                0..toString();
            } while (0);
            if (c) console.log("PASS");
-        }(1), 0);
+        })(1);
    }
    expect_stdout: "PASS"
 }
@@ -2799,7 +2798,9 @@ issue_4017: {
        var a = 0;
        console.log(function() {
            c &= 0;
-            var c = (a++, A = a, 0);
+            var c;
+            a++,
+            A = a;
        }());
    }
    expect_stdout: "undefined"