enhance unused (#3839)

2020-05-03 10:38:28 +01:00
parent 20f9a1d908
commit 3766d5c962
2 changed files with 101 additions and 23 deletions
--- a/test/compress/drop-unused.js
+++ b/test/compress/drop-unused.js
@@ -2489,7 +2489,7 @@ drop_duplicated_var_catch: {
    }
 }

-issue_3802: {
+issue_3802_1: {
    options = {
        functions: true,
        reduce_vars: true,
@@ -2510,3 +2510,25 @@ issue_3802: {
    }
    expect_stdout: "function"
 }
+
+issue_3802_2: {
+    options = {
+        functions: true,
+        reduce_vars: true,
+        side_effects: true,
+        toplevel: true,
+        unused: true,
+    }
+    input: {
+        var a = 0;
+        a += 0;
+        var a = function() {};
+        console.log(typeof a);
+    }
+    expect: {
+        0;
+        function a() {};
+        console.log(typeof a);
+    }
+    expect_stdout: "function"
+}