fix destructing crash in reduce_vars

fixes #1531
2017-03-03 07:23:46 +08:00
parent 0b77d861a8
commit f704e9b65c
2 changed files with 51 additions and 5 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -205,12 +205,16 @@ merge(Compressor.prototype, {
                    }
                }
                if (node instanceof AST_VarDef) {
-                    var d = node.name.definition();
-                    if (d.fixed === undefined) {
-                        d.fixed = node.value || make_node(AST_Undefined, node);
-                        mark_as_safe(d);
+                    if (node.name instanceof AST_Destructuring) {
+                        node.name.walk(suppressor);
                    } else {
-                        d.fixed = false;
+                        var d = node.name.definition();
+                        if (d.fixed === undefined) {
+                            d.fixed = node.value || make_node(AST_Undefined, node);
+                            mark_as_safe(d);
+                        } else {
+                            d.fixed = false;
+                        }
                    }
                }
                var iife;