avoid inline of function with special argument names (#2625)

2017-12-20 02:48:04 +08:00
parent 2273655c17
commit fac003c64f
2 changed files with 92 additions and 4 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -858,6 +858,7 @@ merge(Compressor.prototype, {
            || compressor.option("unsafe") && global_names(this.name);
    });

+    var identifier_atom = makePredicate("Infinity NaN undefined");
    function is_identifier_atom(node) {
        return node instanceof AST_Infinity
            || node instanceof AST_NaN
@@ -4015,6 +4016,7 @@ merge(Compressor.prototype, {
                return arg.__unused
                    || safe_to_inject
                        && !catches[arg.name]
+                        && !identifier_atom(arg.name)
                        && !scope.var_names()[arg.name];
            }) && scope;
        }