1 files changed, 94 insertions, 0 deletions
diff --git a/node_modules/any-promise/register.js b/node_modules/any-promise/register.js
new file mode 100644
index 0000000..255c6e2
--- /dev/null
+++ b/node_modules/any-promise/register.js
@@ -0,0 +1,94 @@
+"use strict"
+module.exports = require('./loader')(global, loadImplementation);
+
+/**
+ * Node.js version of loadImplementation.
+ *
+ * Requires the given implementation and returns the registration
+ * containing {Promise, implementation}
+ *
+ * If implementation is undefined or global.Promise, loads it
+ * Otherwise uses require
+ */
+function loadImplementation(implementation){
+  var impl = null
+
+  if(shouldPreferGlobalPromise(implementation)){
+    // if no implementation or env specified use global.Promise
+    impl = {
+      Promise: global.Promise,
+      implementation: 'global.Promise'
+    }
+  } else if(implementation){
+    // if implementation specified, require it
+    var lib = require(implementation)
+    impl = {
+      Promise: lib.Promise || lib,
+      implementation: implementation
+    }
+  } else {
+    // try to auto detect implementation. This is non-deterministic
+    // and should prefer other branches, but this is our last chance
+    // to load something without throwing error
+    impl = tryAutoDetect()
+  }
+
+  if(impl === null){
+    throw new Error('Cannot find any-promise implementation nor'+
+      ' global.Promise. You must install polyfill or call'+
+      ' require("any-promise/register") with your preferred'+
+      ' implementation, e.g. require("any-promise/register/bluebird")'+
+      ' on application load prior to any require("any-promise").')
+  }
+
+  return impl
+}
+
+/**
+ * Determines if the global.Promise should be preferred if an implementation
+ * has not been registered.
+ */
+function shouldPreferGlobalPromise(implementation){
+  if(implementation){
+    return implementation === 'global.Promise'
+  } else if(typeof global.Promise !== 'undefined'){
+    // Load global promise if implementation not specified
+    // Versions < 0.11 did not have global Promise
+    // Do not use for version < 0.12 as version 0.11 contained buggy versions
+    var version = (/v(\d+)\.(\d+)\.(\d+)/).exec(process.version)
+    return !(version && +version[1] == 0 && +version[2] < 12)
+  }
+
+  // do not have global.Promise or another implementation was specified
+  return false
+}
+
+/**
+ * Look for common libs as last resort there is no guarantee that
+ * this will return a desired implementation or even be deterministic.
+ * The priority is also nearly arbitrary. We are only doing this
+ * for older versions of Node.js <0.12 that do not have a reasonable
+ * global.Promise implementation and we the user has not registered
+ * the preference. This preserves the behavior of any-promise <= 0.1
+ * and may be deprecated or removed in the future
+ */
+function tryAutoDetect(){
+  var libs = [
+      "es6-promise",
+      "promise",
+      "native-promise-only",
+      "bluebird",
+      "rsvp",
+      "when",
+      "q",
+      "pinkie",
+      "lie",
+      "vow"]
+  var i = 0, len = libs.length
+  for(; i < len; i++){
+    try {
+      return loadImplementation(libs[i])
+    } catch(e){}
+  }
+  return null
+}