diff --git a/lib/6to5/generation/node.js b/lib/6to5/generation/node.js
deleted file mode 100644
index e2ec453297..0000000000
--- a/lib/6to5/generation/node.js
+++ /dev/null
@@ -1,294 +0,0 @@
-module.exports = Node;
-
-var t = require("../types");
-var _ = require("lodash");
-
-function Node(node, parent) {
-  this.parent = parent;
-  this.node   = node;
-}
-
-//
-
-Node.whitespace = {
-  FunctionExpression: 1,
-  FunctionStatement: 1,
-  ClassExpression: 1,
-  ClassStatement: 1,
-  ForOfStatement: 1,
-  ForInStatement: 1,
-  ForStatement: 1,
-  SwitchStatement: 1,
-  IfStatement: { before: 1 },
-  //Property: { before: 1 },
-  Literal: { after: 1 }
-};
-
-_.each(Node.whitespace, function (amounts, type) {
-  if (_.isNumber(amounts)) amounts = { after: amounts, before: amounts };
-  Node.whitespace[type] = amounts;
-});
-
-//
-
-Node.PRECEDENCE = {};
-
-_.each([
-  ["||"],
-  ["&&"],
-  ["|"],
-  ["^"],
-  ["&"],
-  ["==", "===", "!=", "!=="],
-  ["<", ">", "<=", ">=", "in", "instanceof"],
-  [">>", "<<", ">>>"],
-  ["+", "-"],
-  ["*", "/", "%"]
-], function (tier, i) {
-  _.each(tier, function (op) {
-    Node.PRECEDENCE[op] = i;
-  });
-});
-
-//
-
-Node.prototype.isUserWhitespacable = function () {
-  //var parent = this.parent;
-  var node = this.node;
-
-  if (t.isUserWhitespacable(node)) {
-    return true;
-  }
-
-  //if (t.isArrayExpression(parent)) {
-  //  return true;
-  //}
-
-  return false;
-};
-
-Node.prototype.needsWhitespace = function (type) {
-  var parent = this.parent;
-  var node   = this.node;
-  if (!node) return 0;
-
-  if (t.isExpressionStatement(node)) {
-    node = node.expression;
-  }
-
-  if (type === "before") {
-    if (t.isProperty(node) && parent.properties[0] === node) {
-      return 1;
-    }
-
-    if (t.isSwitchCase(node) && parent.cases[0] === node) {
-      return 1;
-    }
-  }
-
-  if (type === "after") {
-    if (t.isCallExpression(node)) {
-      return 1;
-    }
-
-    var exprs = [];
-
-    if (t.isVariableDeclaration(node)) {
-      exprs = _.map(node.declarations, "init");
-    }
-
-    if (t.isArrayExpression(node)) {
-      exprs = node.elements;
-    }
-
-    if (t.isObjectExpression(node)) {
-      exprs = node.properties;
-    }
-
-    var lines = 0;
-
-    _.each(exprs, function (expr) {
-      lines = Node.needsWhitespace(expr, node, type);
-      if (lines) return false;
-    });
-
-    if (lines) return lines;
-  }
-
-  if (t.isCallExpression(node) && t.isFunction(node.callee)) {
-    return 1;
-  }
-
-  var opts = Node.whitespace[node.type];
-  return (opts && opts[type]) || 0;
-};
-
-Node.prototype.needsWhitespaceBefore = function () {
-  return this.needsWhitespace("before");
-};
-
-Node.prototype.needsWhitespaceAfter = function () {
-  return this.needsWhitespace("after");
-};
-
-Node.prototype.needsParens = function () {
-  var parent = this.parent;
-  var node = this.node;
-
-  if (!parent) return false;
-
-  //
-  if (t.isUnaryLike(node)) {
-    return t.isMemberExpression(parent) && parent.object === node;
-  }
-
-  if (t.isBinary(node)) {
-    //
-    if (t.isCallExpression(parent) && parent.callee === node) {
-      return true;
-    }
-
-    //
-    if (t.isUnaryLike(parent)) {
-      return true;
-    }
-
-    //
-    if (t.isMemberExpression(parent) && parent.object === node) {
-      return true;
-    }
-
-    if (t.isBinary(parent)) {
-      var parentOp  = parent.operator;
-      var parentPos = Node.PRECEDENCE[parentOp];
-
-      var nodeOp = node.operator;
-      var nodePos = Node.PRECEDENCE[nodeOp];
-
-      if (parentPos > nodePos) {
-        return true;
-      }
-
-      if (parentPos === nodePos && parent.right === node) {
-        return true;
-      }
-    }
-  }
-
-  if (t.isBinaryExpression(node) && node.operator === "in") {
-    // var i = (1 in []);
-    if (t.isVariableDeclarator(parent)) {
-      return true;
-    }
-
-    // for ((1 in []);;);
-    if (t.isFor(parent)) {
-      return true;
-    }
-  }
-
-  // (class {});
-  if (t.isClassExpression(node) && t.isExpressionStatement(parent)) {
-    return true;
-  }
-
-  if (t.isSequenceExpression(node)) {
-    if (t.isForStatement(parent)) {
-      // Although parentheses wouldn't hurt around sequence
-      // expressions in the head of for loops, traditional style
-      // dictates that e.g. i++, j++ should not be wrapped with
-      // parentheses.
-      return false;
-    }
-
-    if (t.isExpressionStatement(parent) && parent.expression === node) {
-      return false;
-    }
-
-    // Otherwise err on the side of overparenthesization, adding
-    // explicit exceptions above if this proves overzealous.
-    return true;
-  }
-
-  //
-  if (t.isYieldExpression(node)) {
-    return t.isBinary(parent) ||
-           t.isUnaryLike(parent) ||
-           t.isCallExpression(parent) ||
-           t.isMemberExpression(parent) ||
-           t.isNewExpression(parent) ||
-           t.isConditionalExpression(parent) ||
-           t.isYieldExpression(parent);
-  }
-
-  if (t.isNewExpression(parent) && parent.callee === node) {
-    return t.isCallExpression(node) || _.some(node, function (val) {
-      return t.isCallExpression(val);
-    });
-  }
-
-  // (1).valueOf()
-  if (t.isLiteral(node) && _.isNumber(node.value) && t.isMemberExpression(parent) && parent.object === node) {
-    return true;
-  }
-
-  if (t.isAssignmentExpression(node) || t.isConditionalExpression(node)) {
-    //
-    if (t.isUnaryLike(parent)) {
-      return true;
-    }
-
-    //
-    if (t.isBinary(parent)) {
-      return true;
-    }
-
-    //
-    if (t.isCallExpression(parent) && parent.callee === node) {
-      return true;
-    }
-
-    //
-    if (t.isConditionalExpression(parent) && parent.test === node) {
-      return true;
-    }
-
-    //
-    if (t.isMemberExpression(parent) && parent.object === node) {
-      return true;
-    }
-  }
-
-  if (t.isFunctionExpression(node)) {
-    // function () {};
-    if (t.isExpressionStatement(parent)) {
-      return true;
-    }
-
-    // (function test() {}).name;
-    if (t.isMemberExpression(parent) && parent.object === node) {
-      return true;
-    }
-
-    // (function () {})();
-    if (t.isCallExpression(parent) && parent.callee === node) {
-      return true;
-    }
-  }
-
-  // ({ x, y }) = { x: 5, y: 6 };
-  if (t.isObjectPattern(node) && t.isAssignmentExpression(parent) && parent.left == node) {
-    return true;
-  }
-
-  return false;
-};
-
-_.each(Node.prototype, function (fn, key) {
-  Node[key] = function (node, parent) {
-    var n = new Node(node, parent);
-
-    var args = _.toArray(arguments).slice(2);
-    return n[key].apply(n, args);
-  };
-});
diff --git a/lib/6to5/generation/node/index.js b/lib/6to5/generation/node/index.js
new file mode 100644
index 0000000000..470fe00f24
--- /dev/null
+++ b/lib/6to5/generation/node/index.js
@@ -0,0 +1,93 @@
+module.exports = Node;
+
+var whitespace = require("./whitespace");
+var parens     = require("./parentheses");
+var t           = require("../../types");
+var _           = require("lodash");
+
+var find = function (obj, node, parent) {
+  var result;
+
+  _.each(obj, function (fn, type) {
+    if (t["is" + type](node)) {
+      result = fn(node, parent);
+      if (result != null) return false;
+    }
+  });
+
+  return result;
+};
+
+function Node(node, parent) {
+  this.parent = parent;
+  this.node   = node;
+}
+
+Node.prototype.isUserWhitespacable = function () {
+  //var parent = this.parent;
+  var node = this.node;
+
+  if (t.isUserWhitespacable(node)) {
+    return true;
+  }
+
+  //if (t.isArrayExpression(parent)) {
+  //  return true;
+  //}
+
+  return false;
+};
+
+Node.prototype.needsWhitespace = function (type) {
+  var parent = this.parent;
+  var node   = this.node;
+  if (!node) return 0;
+
+  if (t.isExpressionStatement(node)) {
+    node = node.expression;
+  }
+
+  var lines = find(whitespace[type].nodes, node, parent);
+  if (lines) return lines;
+
+  _.each(find(whitespace[type].list, node, parent), function (expr) {
+    lines = Node.needsWhitespace(expr, node, type);
+    if (lines) return false;
+  });
+  if (lines) return lines;
+
+  var opts = whitespace.static[node.type];
+  return (opts && opts[type]) || 0;
+};
+
+Node.prototype.needsWhitespaceBefore = function () {
+  return this.needsWhitespace("before");
+};
+
+Node.prototype.needsWhitespaceAfter = function () {
+  return this.needsWhitespace("after");
+};
+
+Node.prototype.needsParens = function () {
+  var parent = this.parent;
+  var node   = this.node;
+
+  if (!parent) return false;
+
+  if (t.isNewExpression(parent) && parent.callee === node) {
+    return t.isCallExpression(node) || _.some(node, function (val) {
+      return t.isCallExpression(val);
+    });
+  }
+
+  return find(parens, node, parent);
+};
+
+_.each(Node.prototype, function (fn, key) {
+  Node[key] = function (node, parent) {
+    var n = new Node(node, parent);
+
+    var args = _.toArray(arguments).slice(2);
+    return n[key].apply(n, args);
+  };
+});
diff --git a/lib/6to5/generation/node/parentheses.js b/lib/6to5/generation/node/parentheses.js
new file mode 100644
index 0000000000..32f4314d79
--- /dev/null
+++ b/lib/6to5/generation/node/parentheses.js
@@ -0,0 +1,151 @@
+var Node = require("./index");
+var t    = require("../../types");
+var _    = require("lodash");
+
+var PRECEDENCE = {};
+
+_.each([
+  ["||"],
+  ["&&"],
+  ["|"],
+  ["^"],
+  ["&"],
+  ["==", "===", "!=", "!=="],
+  ["<", ">", "<=", ">=", "in", "instanceof"],
+  [">>", "<<", ">>>"],
+  ["+", "-"],
+  ["*", "/", "%"]
+], function (tier, i) {
+  _.each(tier, function (op) {
+    PRECEDENCE[op] = i;
+  });
+});
+
+exports.Binary = function (node, parent) {
+  if (t.isCallExpression(parent) && parent.callee === node) {
+    return true;
+  }
+
+  if (t.isUnaryLike(parent)) {
+    return true;
+  }
+
+  if (t.isMemberExpression(parent) && parent.object === node) {
+    return true;
+  }
+
+  if (t.isBinary(parent)) {
+    var parentOp  = parent.operator;
+    var parentPos = PRECEDENCE[parentOp];
+
+    var nodeOp = node.operator;
+    var nodePos = PRECEDENCE[nodeOp];
+
+    if (parentPos > nodePos) {
+      return true;
+    }
+
+    if (parentPos === nodePos && parent.right === node) {
+      return true;
+    }
+  }
+};
+
+exports.BinaryExpression = function (node, parent) {
+  if (node.operator === "in") {
+    // var i = (1 in []);
+    if (t.isVariableDeclarator(parent)) {
+      return true;
+    }
+
+    // for ((1 in []);;);
+    if (t.isFor(parent)) {
+      return true;
+    }
+  }
+};
+
+exports.SequenceExpression = function (node, parent) {
+  if (t.isForStatement(parent)) {
+    // Although parentheses wouldn't hurt around sequence
+    // expressions in the head of for loops, traditional style
+    // dictates that e.g. i++, j++ should not be wrapped with
+    // parentheses.
+    return false;
+  }
+
+  if (t.isExpressionStatement(parent) && parent.expression === node) {
+    return false;
+  }
+
+  // Otherwise err on the side of overparenthesization, adding
+  // explicit exceptions above if this proves overzealous.
+  return true;
+};
+
+exports.YieldExpression = function (node, parent) {
+  return t.isBinary(parent) ||
+         t.isUnaryLike(parent) ||
+         t.isCallExpression(parent) ||
+         t.isMemberExpression(parent) ||
+         t.isNewExpression(parent) ||
+         t.isConditionalExpression(parent) ||
+         t.isYieldExpression(parent);
+};
+
+exports.Literal = function (node, parent) {
+  // (1).valueOf()
+  if (_.isNumber(node.value) && t.isMemberExpression(parent) && parent.object === node) {
+    return true;
+  }
+};
+
+exports.ClassExpression = function (node, parent) {
+  return t.isExpressionStatement(parent);
+};
+
+exports.UnaryLike = function (node, parent) {
+  return t.isMemberExpression(parent) && parent.object === node;
+};
+
+exports.FunctionExpression = function (node, parent) {
+  // function () {};
+  if (t.isExpressionStatement(parent)) {
+    return true;
+  }
+
+  // (function test() {}).name;
+  if (t.isMemberExpression(parent) && parent.object === node) {
+    return true;
+  }
+
+  // (function () {})();
+  if (t.isCallExpression(parent) && parent.callee === node) {
+    return true;
+  }
+};
+
+exports.AssignmentExpression =
+exports.ConditionalExpression = function (node, parent) {
+  if (t.isUnaryLike(parent)) {
+    return true;
+  }
+
+  if (t.isBinary(parent)) {
+    return true;
+  }
+
+  if (t.isCallExpression(parent) && parent.callee === node) {
+    return true;
+  }
+
+  if (t.isConditionalExpression(parent) && parent.test === node) {
+    return true;
+  }
+
+  if (t.isMemberExpression(parent) && parent.object === node) {
+    return true;
+  }
+
+  return false;
+};
diff --git a/lib/6to5/generation/node/whitespace.js b/lib/6to5/generation/node/whitespace.js
new file mode 100644
index 0000000000..cc44070ec6
--- /dev/null
+++ b/lib/6to5/generation/node/whitespace.js
@@ -0,0 +1,59 @@
+var _ = require("lodash");
+var t = require("../../types");
+
+exports.static = {
+  FunctionExpression: 1,
+  FunctionStatement: 1,
+  ClassExpression: 1,
+  ClassStatement: 1,
+  ForOfStatement: 1,
+  ForInStatement: 1,
+  ForStatement: 1,
+  SwitchStatement: 1,
+  IfStatement: { before: 1 },
+  CallExpression: { after: 1 },
+  Literal: { after: 1 }
+};
+
+_.each(exports.static, function (amounts, type) {
+  if (_.isNumber(amounts)) amounts = { after: amounts, before: amounts };
+  exports.static[type] = amounts;
+});
+
+exports.before = {
+  nodes: {
+    Property: function (node, parent) {
+      if (parent.properties[0] === node) {
+        return 1;
+      }
+    },
+
+    SwitchCase: function (node, parent) {
+      if (parent.cases[0] === node) {
+        return 1;
+      }
+    },
+
+    CallExpression: function (node, parent) {
+      if (t.isFunction(node.callee)) {
+        return 1;
+      }
+    }
+  }
+};
+
+exports.after = {
+  list: {
+    VariableDeclaration: function (node) {
+      return _.map(node.declarations, "init");;
+    },
+
+    ArrayExpression: function (node) {
+      return node.elements;
+    },
+
+    ObjectExpression: function (node) {
+      return node.properties;
+    }
+  }
+};