small improvement on merging assignments into hoisted vars

2012-12-05 13:14:49 +02:00 · 2012-12-05 13:14:49 +02:00 · 16430acc1f
commit 16430acc1f
parent 320c110b33
1 changed files with 9 additions and 0 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@ -1152,6 +1152,15 @@ merge(Compressor.prototype, {
                                continue;
                            }
                        }
+                        if (self.body[i] instanceof AST_EmptyStatement) {
+                            self.body.splice(i, 1);
+                            continue;
+                        }
+                        if (self.body[i] instanceof AST_BlockStatement) {
+                            var tmp = [ i, 1 ].concat(self.body[i].body);
+                            self.body.splice.apply(self.body, tmp);
+                            continue;
+                        }
                        break;
                    }
                    defs = make_node(AST_Var, self, {