fix corner cases related to in (#3964)

2020-06-07 22:23:23 +01:00
parent 28b7b15da1
commit df3bb8028a
7 changed files with 106 additions and 11 deletions
--- a/test/compress/side_effects.js
+++ b/test/compress/side_effects.js
@@ -274,3 +274,26 @@ drop_value: {
        foo(), bar();
    }
 }
+
+operator_in: {
+    options = {
+        side_effects: true,
+    }
+    input: {
+        try {
+            "foo" in true;
+            console.log("FAIL");
+        } catch (e) {
+            console.log("PASS");
+        }
+    }
+    expect: {
+        try {
+            0 in true;
+            console.log("FAIL");
+        } catch (e) {
+            console.log("PASS");
+        }
+    }
+    expect_stdout: "PASS"
+}