allow RegExp for unsafe_methods compress option (#2327)

2017-09-20 12:48:16 -04:00
parent e8235657e4
commit a784717fe2
3 changed files with 59 additions and 1 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -4867,7 +4867,10 @@ merge(Compressor.prototype, {
        // p:async function(){} ---> async p(){}
        // p:()=>{} ---> p(){}
        // p:async()=>{} ---> async p(){}
-        if (compressor.option("unsafe_methods") && compressor.option("ecma") >= 6) {
+        var unsafe_methods = compressor.option("unsafe_methods");
+        if (unsafe_methods
+            && compressor.option("ecma") >= 6
+            && (!(unsafe_methods instanceof RegExp) || unsafe_methods.test(self.key + ""))) {
            var key = self.key;
            var value = self.value;
            var is_arrow_with_block = value instanceof AST_Arrow