enhance varify (#5658)

2022-09-10 20:28:54 +01:00
parent 88dfc49683
commit edf1bf1106
2 changed files with 41 additions and 2 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -10120,9 +10120,11 @@ Compressor.prototype.compress = function(node) {
    }

    function can_varify(compressor, sym) {
-        if (!sym.fixed_value()) return false;
        var def = sym.definition();
-        return is_safe_lexical(def) && same_scope(def) && !may_overlap(compressor, def);
+        return (def.fixed || def.fixed === 0)
+            && is_safe_lexical(def)
+            && same_scope(def)
+            && !may_overlap(compressor, def);
    }

    function varify(self, compressor) {