clean up TreeWalker.pop() (#2195)

Remove superfluous parameter.
2017-07-03 03:23:38 +08:00
parent 20e4f8277f
commit 6b3aeff1d8
2 changed files with 4 additions and 5 deletions
--- a/lib/ast.js
+++ b/lib/ast.js
@@ -859,7 +859,7 @@ TreeWalker.prototype = {
        if (!ret && descend) {
            descend.call(node);
        }
-        this.pop(node);
+        this.pop();
        return ret;
    },
    parent: function(n) {
@@ -873,9 +873,8 @@ TreeWalker.prototype = {
        }
        this.stack.push(node);
    },
-    pop: function(node) {
-        this.stack.pop();
-        if (node instanceof AST_Lambda) {
+    pop: function() {
+        if (this.stack.pop() instanceof AST_Lambda) {
            this.directives = Object.getPrototypeOf(this.directives);
        }
    },