fix collapse_vars on destructuring declarations (#1889)

fixes #1886
2017-05-09 17:44:28 +08:00
parent e0ae8da089
commit 2944e3df7d
2 changed files with 16 additions and 1 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -799,7 +799,7 @@ merge(Compressor.prototype, {
            }

            function get_lhs(expr) {
-                if (expr instanceof AST_VarDef) {
+                if (expr instanceof AST_VarDef && expr.name instanceof AST_SymbolDeclaration) {
                    var def = expr.name.definition();
                    if (def.orig.length > 1
                        || def.references.length == 1 && (!def.global || compressor.toplevel(def))) {