implement keep_fargs for mangle (#5307)

closes #4657
2022-01-20 21:13:26 +00:00
parent efed55f42d
commit e24b255350
20 changed files with 507 additions and 267 deletions
--- a/test/compress/const.js
+++ b/test/compress/const.js
@@ -220,6 +220,32 @@ merge_vars_3: {
    expect_stdout: true
 }

+merge_vars_4: {
+    options = {
+        merge_vars: true,
+        toplevel: true,
+    }
+    input: {
+        var a = 1;
+        console.log(typeof a);
+        {
+            var b = console;
+            console.log(typeof b);
+            const a = 0;
+        }
+    }
+    expect: {
+        var a = 1;
+        console.log(typeof a);
+        {
+            var b = console;
+            console.log(typeof b);
+            const a = 0;
+        }
+    }
+    expect_stdout: true
+}
+
 use_before_init_1: {
    options = {
        reduce_vars: true,