fix corner case in collapse_vars (#5780)

fixes #5779
2023-01-16 15:30:59 +02:00
parent a437a61518
commit f0ca9cfbe6
2 changed files with 30 additions and 1 deletions
--- a/test/compress/collapse_vars.js
+++ b/test/compress/collapse_vars.js
@@ -9864,7 +9864,8 @@ issue_5276: {
    }
    expect: {
        var a = A = "PASS";
-        a.p = a.p + null - 42;
+        a.p += null;
+        a.p -= 42;
        console.log(a);
    }
    expect_stdout: "PASS"
@@ -10148,3 +10149,26 @@ issue_5719: {
    }
    expect_stdout: "PASS"
 }
+
+issue_5779: {
+    options = {
+        collapse_vars: true,
+        evaluate: true,
+        pure_getters: "strict",
+        reduce_vars: true,
+        toplevel: true,
+    }
+    input: {
+        var a = A = "foo";
+        a.p = 42;
+        if (a && !a.p)
+            console.log("PASS");
+    }
+    expect: {
+        var a = A = "foo";
+        a.p = 42;
+        if (a, !a.p)
+            console.log("PASS");
+    }
+    expect_stdout: "PASS"
+}