diff --git a/lib/6to5/transformation/transformers/es6/destructuring.js b/lib/6to5/transformation/transformers/es6/destructuring.js
index 34e9895a81..172ffd66d9 100644
--- a/lib/6to5/transformation/transformers/es6/destructuring.js
+++ b/lib/6to5/transformation/transformers/es6/destructuring.js
@@ -6,8 +6,17 @@ var t = require("../../../types");
 
 exports.check = t.isPattern;
 
-var buildVariableAssign = function (opts, id, init) {
-  var op = opts.operator;
+function Destructuring(opts) {
+  this.blockHoist = opts.blockHoist;
+  this.operator   = opts.operator;
+  this.nodes      = opts.nodes;
+  this.scope      = opts.scope;
+  this.file       = opts.file;
+  this.kind       = opts.kind;
+}
+
+ Destructuring.prototype.buildVariableAssignment = function (id, init) {
+  var op = this.operator;
   if (t.isMemberExpression(id)) op = "=";
 
   var node;
@@ -15,47 +24,46 @@ var buildVariableAssign = function (opts, id, init) {
   if (op) {
     node = t.expressionStatement(t.assignmentExpression(op, id, init));
   } else {
-    node = t.variableDeclaration(opts.kind, [
+    node = t.variableDeclaration(this.kind, [
       t.variableDeclarator(id, init)
     ]);
   }
 
-  node._blockHoist = opts.blockHoist;
+  node._blockHoist = this.blockHoist;
 
   return node;
 };
 
-var buildVariableDeclar = function (opts, id, init) {
+ Destructuring.prototype.buildVariableDeclaration = function (id, init) {
   var declar = t.variableDeclaration("var", [
     t.variableDeclarator(id, init)
   ]);
-  declar._blockHoist = opts.blockHoist;
+  declar._blockHoist = this.blockHoist;
   return declar;
 };
 
-var push = function (opts, nodes, elem, parentId) {
+ Destructuring.prototype.push = function (elem, parentId) {
   if (t.isObjectPattern(elem)) {
-    pushObjectPattern(opts, nodes, elem, parentId);
+    this.pushObjectPattern(elem, parentId);
   } else if (t.isArrayPattern(elem)) {
-    pushArrayPattern(opts, nodes, elem, parentId);
+    this.pushArrayPattern(elem, parentId);
   } else if (t.isAssignmentPattern(elem)) {
-    pushAssignmentPattern(opts, nodes, elem, parentId);
+    this.pushAssignmentPattern(elem, parentId);
   } else {
-    nodes.push(buildVariableAssign(opts, elem, parentId));
+    this.nodes.push(this.buildVariableAssignment(elem, parentId));
   }
 };
 
-var pushAssignmentPattern = function (opts, nodes, pattern, parentId) {
-  var tempParentId = opts.scope.generateUidBasedOnNode(parentId, opts.file);
+ Destructuring.prototype.pushAssignmentPattern = function (pattern, parentId) {
+  var tempParentId = this.scope.generateUidBasedOnNode(parentId);
 
   var declar = t.variableDeclaration("var", [
     t.variableDeclarator(tempParentId, parentId)
   ]);
-  declar._blockHoist = opts.blockHoist;
-  nodes.push(declar);
+  declar._blockHoist = this.blockHoist;
+  this.nodes.push(declar);
 
-  nodes.push(buildVariableAssign(
-    opts,
+  this.nodes.push(this.buildVariableAssignment(
     pattern.left,
     t.conditionalExpression(
       t.binaryExpression("===", tempParentId, t.identifier("undefined")),
@@ -65,10 +73,10 @@ var pushAssignmentPattern = function (opts, nodes, pattern, parentId) {
   ));
 };
 
-var pushObjectPattern = function (opts, nodes, pattern, parentId) {
+ Destructuring.prototype.pushObjectPattern = function (pattern, parentId) {
   if (!pattern.properties.length) {
-    nodes.push(t.expressionStatement(
-      t.callExpression(opts.file.addHelper("object-destructuring-empty"), [parentId])
+    this.nodes.push(t.expressionStatement(
+      t.callExpression(this.file.addHelper("object-destructuring-empty"), [parentId])
     ));
   }
 
@@ -91,8 +99,8 @@ var pushObjectPattern = function (opts, nodes, pattern, parentId) {
       }
       keys = t.arrayExpression(keys);
 
-      var value = t.callExpression(opts.file.addHelper("object-without-properties"), [parentId, keys]);
-      nodes.push(buildVariableAssign(opts, prop.argument, value));
+      var value = t.callExpression(this.file.addHelper("object-without-properties"), [parentId, keys]);
+      this.nodes.push(this.buildVariableAssignment(prop.argument, value));
     } else {
       if (t.isLiteral(prop.key)) prop.computed = true;
 
@@ -100,15 +108,15 @@ var pushObjectPattern = function (opts, nodes, pattern, parentId) {
       var patternId2 = t.memberExpression(parentId, prop.key, prop.computed);
 
       if (t.isPattern(pattern2)) {
-        push(opts, nodes, pattern2, patternId2);
+        this.push(pattern2, patternId2);
       } else {
-        nodes.push(buildVariableAssign(opts, pattern2, patternId2));
+        this.nodes.push(this.buildVariableAssignment(pattern2, patternId2));
       }
     }
   }
 };
 
-var pushArrayPattern = function (opts, nodes, pattern, parentId) {
+ Destructuring.prototype.pushArrayPattern = function (pattern, parentId) {
   if (!pattern.elements) return;
 
   var i;
@@ -121,10 +129,10 @@ var pushArrayPattern = function (opts, nodes, pattern, parentId) {
     }
   }
 
-  var toArray = opts.file.toArray(parentId, !hasRest && pattern.elements.length);
+  var toArray = this.file.toArray(parentId, !hasRest && pattern.elements.length);
 
-  var _parentId = opts.scope.generateUidBasedOnNode(parentId, opts.file);
-  nodes.push(buildVariableDeclar(opts, _parentId, toArray));
+  var _parentId = this.scope.generateUidBasedOnNode(parentId, this.file);
+  this.nodes.push(this.buildVariableDeclaration(_parentId, toArray));
   parentId = _parentId;
 
   for (i = 0; i < pattern.elements.length; i++) {
@@ -136,7 +144,7 @@ var pushArrayPattern = function (opts, nodes, pattern, parentId) {
     var newPatternId;
 
     if (t.isRestElement(elem)) {
-      newPatternId = opts.file.toArray(parentId);
+      newPatternId = this.file.toArray(parentId);
 
       if (i > 0) {
         newPatternId = t.callExpression(t.memberExpression(newPatternId, t.identifier("slice")), [t.literal(i)]);
@@ -147,23 +155,18 @@ var pushArrayPattern = function (opts, nodes, pattern, parentId) {
       newPatternId = t.memberExpression(parentId, t.literal(i), true);
     }
 
-    push(opts, nodes, elem, newPatternId);
+    this.push(elem, newPatternId);
   }
 };
 
-var pushPattern = function (opts) {
-  var nodes = opts.nodes;
-  var pattern = opts.pattern;
-  var parentId = opts.id;
-  var scope = opts.scope;
-
+ Destructuring.prototype.init = function (pattern, parentId) {
   if (!t.isArrayExpression(parentId) && !t.isMemberExpression(parentId) && !t.isIdentifier(parentId)) {
-    var key = scope.generateUidBasedOnNode(parentId);
-    nodes.push(buildVariableDeclar(opts, key, parentId));
+    var key = this.scope.generateUidBasedOnNode(parentId);
+    this.nodes.push(this.buildVariableDeclaration(key, parentId));
     parentId = key;
   }
 
-  push(opts, nodes, pattern, parentId);
+  this.push(pattern, parentId);
 };
 
 exports.ForInStatement =
@@ -181,11 +184,13 @@ exports.ForOfStatement = function (node, parent, scope, context, file) {
 
   var nodes = [];
 
-  push({
+  var destructuring = new Destructuring({
     kind: declar.kind,
     file: file,
-    scope: scope
-  }, nodes, pattern, key);
+    scope: scope,
+    nodes: nodes
+  });
+  destructuring.init(pattern, key);
 
   t.ensureBlock(node);
 
@@ -204,15 +209,14 @@ exports.Function = function (node, parent, scope, context, file) {
     hasDestructuring = true;
     var parentId = scope.generateUidIdentifier("ref");
 
-    pushPattern({
+    var destructuring = new Destructuring({
       blockHoist: node.params.length - i,
-      pattern:    pattern,
       nodes:      nodes,
       scope:      scope,
       file:       file,
       kind:       "var",
-      id:         parentId
     });
+    destructuring.init(pattern, parentId);
 
     return parentId;
   });
@@ -234,11 +238,13 @@ exports.CatchClause = function (node, parent, scope, context, file) {
 
   var nodes = [];
 
-  push({
+  var destructuring = new Destructuring({
     kind: "var",
     file: file,
-    scope: scope
-  }, nodes, pattern, ref);
+    scope: scope,
+    nodes: nodes
+  });
+  destructuring.init(pattern, ref);
 
   node.body.body = nodes.concat(node.body.body);
 };
@@ -256,11 +262,13 @@ exports.ExpressionStatement = function (node, parent, scope, context, file) {
     t.variableDeclarator(ref, expr.right)
   ]));
 
-  push({
+  var destructuring = new Destructuring({
     operator: expr.operator,
     file: file,
-    scope: scope
-  }, nodes, expr.left, ref);
+    scope: scope,
+    nodes: nodes
+  });
+  destructuring.init(expr.left, ref);
 
   return nodes;
 };
@@ -277,11 +285,13 @@ exports.AssignmentExpression = function (node, parent, scope, context, file) {
   var nodes = [];
   nodes.push(t.assignmentExpression("=", ref, node.right));
 
-  push({
+  var destructuring = new Destructuring({
     operator: node.operator,
     file: file,
-    scope: scope
-  }, nodes, node.left, ref);
+    scope: scope,
+    nodes: nodes
+  });
+  destructuring.init(node.left, ref);
 
   nodes.push(ref);
 
@@ -310,17 +320,16 @@ exports.VariableDeclaration = function (node, parent, scope, context, file) {
 
     var patternId = declar.init;
     var pattern   = declar.id;
-    var opts = {
-      pattern: pattern,
-      nodes:   nodes,
-      scope:   scope,
-      kind:    node.kind,
-      file:    file,
-      id:      patternId,
-    };
+
+    var destructuring = new Destructuring({
+      nodes: nodes,
+      scope: scope,
+      kind:  node.kind,
+      file:  file
+    });
 
     if (t.isPattern(pattern) && patternId) {
-      pushPattern(opts);
+      destructuring.init(pattern, patternId);
 
       if (+i !== node.declarations.length - 1) {
         // we aren't the last declarator so let's just make the
@@ -328,7 +337,7 @@ exports.VariableDeclaration = function (node, parent, scope, context, file) {
         t.inherits(nodes[nodes.length - 1], declar);
       }
     } else {
-      nodes.push(t.inherits(buildVariableAssign(opts, declar.id, declar.init), declar));
+      nodes.push(t.inherits(destructuring.buildVariableAssignment(declar.id, declar.init), declar));
     }
   }