fix corner case in evaluate (#3569)

2019-11-04 13:13:48 +08:00
parent 0f2687ecfc
commit 0e29ad5eb9
2 changed files with 29 additions and 1 deletions
--- a/test/compress/evaluate.js
+++ b/test/compress/evaluate.js
@@ -1876,3 +1876,27 @@ issue_3558: {
    }
    expect_stdout: "1 0"
 }
+
+issue_3568: {
+    options = {
+        evaluate: true,
+        reduce_vars: true,
+        toplevel: true,
+        unsafe: true,
+    }
+    input: {
+        var a = 0;
+        function f(b) {
+            return b && b.p;
+        }
+        console.log(f(++a + f()));
+    }
+    expect: {
+        var a = 0;
+        function f(b) {
+            return b && b.p;
+        }
+        console.log(NaN);
+    }
+    expect_stdout: "NaN"
+}