From 1c6ac0a07a8d090bcf5c8d7ac244bce162a111f8 Mon Sep 17 00:00:00 2001
From: Sebastian McKenzie <sebmck@gmail.com>
Date: Mon, 16 Mar 2015 01:25:25 +1100
Subject: [PATCH] designate all playground and es7 transformers as optional

---
 .../transformation/transformers/es7/abstract-references.js   | 1 +
 src/babel/transformation/transformers/es7/comprehensions.js  | 1 +
 .../transformers/es7/exponentiation-operator.js              | 1 +
 .../transformation/transformers/es7/object-rest-spread.js    | 1 +
 .../transformers/playground/mallet-operator.js               | 1 +
 .../transformers/playground/memoization-operator.js          | 1 +
 .../transformation/transformers/playground/method-binding.js | 5 +++++
 .../transformers/playground/object-getter-memoization.js     | 1 +
 8 files changed, 12 insertions(+)

diff --git a/src/babel/transformation/transformers/es7/abstract-references.js b/src/babel/transformation/transformers/es7/abstract-references.js
index 7713b41444..79f6415fad 100644
--- a/src/babel/transformation/transformers/es7/abstract-references.js
+++ b/src/babel/transformation/transformers/es7/abstract-references.js
@@ -4,6 +4,7 @@ import * as util from  "../../../util";
 import * as t from "../../../types";
 
 export var experimental = true;
+export var optional = true;
 
 var container = function (parent, call, ret, file) {
   if (t.isExpressionStatement(parent) && !file.isConsequenceExpressionStatement(parent)) {
diff --git a/src/babel/transformation/transformers/es7/comprehensions.js b/src/babel/transformation/transformers/es7/comprehensions.js
index 98484701b0..901f42e7e2 100644
--- a/src/babel/transformation/transformers/es7/comprehensions.js
+++ b/src/babel/transformation/transformers/es7/comprehensions.js
@@ -4,6 +4,7 @@ import * as util from  "../../../util";
 import * as t from "../../../types";
 
 export var experimental = true;
+export var optional = true;
 
 export function ComprehensionExpression(node, parent, scope, file) {
   var callback = array;
diff --git a/src/babel/transformation/transformers/es7/exponentiation-operator.js b/src/babel/transformation/transformers/es7/exponentiation-operator.js
index da988d07dd..e5106b938c 100644
--- a/src/babel/transformation/transformers/es7/exponentiation-operator.js
+++ b/src/babel/transformation/transformers/es7/exponentiation-operator.js
@@ -4,6 +4,7 @@ import build from "../../helpers/build-binary-assignment-operator-transformer";
 import * as t from "../../../types";
 
 export var experimental = true;
+export var optional = true;
 
 var MATH_POW = t.memberExpression(t.identifier("Math"), t.identifier("pow"));
 
diff --git a/src/babel/transformation/transformers/es7/object-rest-spread.js b/src/babel/transformation/transformers/es7/object-rest-spread.js
index c5d7b08c3d..257064dbcd 100644
--- a/src/babel/transformation/transformers/es7/object-rest-spread.js
+++ b/src/babel/transformation/transformers/es7/object-rest-spread.js
@@ -3,6 +3,7 @@
 import * as t from "../../../types";
 
 export var experimental = true;
+export var optional = true;
 
 export function manipulateOptions(opts) {
   if (opts.whitelist.length) opts.whitelist.push("es6.destructuring");
diff --git a/src/babel/transformation/transformers/playground/mallet-operator.js b/src/babel/transformation/transformers/playground/mallet-operator.js
index 25e6896a45..1d51716fe0 100644
--- a/src/babel/transformation/transformers/playground/mallet-operator.js
+++ b/src/babel/transformation/transformers/playground/mallet-operator.js
@@ -3,6 +3,7 @@ import build from "../../helpers/build-conditional-assignment-operator-transform
 import * as t from "../../../types";
 
 export var playground = true;
+export var optional = true;
 
 build(exports, {
   is(node, file) {
diff --git a/src/babel/transformation/transformers/playground/memoization-operator.js b/src/babel/transformation/transformers/playground/memoization-operator.js
index 7c63ad102a..c399166eef 100644
--- a/src/babel/transformation/transformers/playground/memoization-operator.js
+++ b/src/babel/transformation/transformers/playground/memoization-operator.js
@@ -2,6 +2,7 @@ import build from "../../helpers/build-conditional-assignment-operator-transform
 import * as t from "../../../types";
 
 export var playground = true;
+export var optional = true;
 
 build(exports, {
   is(node) {
diff --git a/src/babel/transformation/transformers/playground/method-binding.js b/src/babel/transformation/transformers/playground/method-binding.js
index 5d4ddff3c7..ed92f512d6 100644
--- a/src/babel/transformation/transformers/playground/method-binding.js
+++ b/src/babel/transformation/transformers/playground/method-binding.js
@@ -1,8 +1,11 @@
 import * as t from "../../../types";
 
 export var playground = true;
+export var optional = true;
 
 export function BindMemberExpression(node, parent, scope) {
+  console.error("Method binding is deprecated and will be removed in 5.0.0");
+
   var object = node.object;
   var prop   = node.property;
 
@@ -25,6 +28,8 @@ export function BindMemberExpression(node, parent, scope) {
 }
 
 export function BindFunctionExpression(node, parent, scope) {
+  console.error("Method binding is deprecated and will be removed in 5.0.0");
+
   var buildCall = function (args) {
     var param = scope.generateUidIdentifier("val");
     return t.functionExpression(null, [param], t.blockStatement([
diff --git a/src/babel/transformation/transformers/playground/object-getter-memoization.js b/src/babel/transformation/transformers/playground/object-getter-memoization.js
index dbbd3a065e..6fb0685e89 100644
--- a/src/babel/transformation/transformers/playground/object-getter-memoization.js
+++ b/src/babel/transformation/transformers/playground/object-getter-memoization.js
@@ -1,6 +1,7 @@
 import * as t from "../../../types";
 
 export var playground = true;
+export var optional = true;
 
 var visitor = {
   enter(node, parent, scope, state) {