fix corner case in unsafe (#3380)

2019-04-24 22:21:28 +08:00
parent 6fe20dbe33
commit d3b93ec682
3 changed files with 38 additions and 0 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -3018,6 +3018,7 @@ merge(Compressor.prototype, {
                    if (arg === value) return this;
                    args.push(value);
                }
+                if (key == "replace" && typeof args[1] == "function") return this;
                try {
                    return val[key].apply(val, args);
                } catch (ex) {
@@ -3139,6 +3140,7 @@ merge(Compressor.prototype, {
        } else if (expr instanceof AST_RegExp) {
            map = native_fns.RegExp;
        } else if (expr.is_string(compressor)) {
+            if (this.property == "replace") return false;
            map = native_fns.String;
        } else if (!this.may_throw_on_access(compressor)) {
            map = native_fns.Object;