1 files changed, 21 insertions, 0 deletions
diff --git a/deps/npm/node_modules/mississippi/node_modules/end-of-stream/node_modules/once/once.js b/deps/npm/node_modules/mississippi/node_modules/end-of-stream/node_modules/once/once.js
new file mode 100644
index 0000000000..2e1e721bfe
--- /dev/null
+++ b/deps/npm/node_modules/mississippi/node_modules/end-of-stream/node_modules/once/once.js
@@ -0,0 +1,21 @@
+var wrappy = require('wrappy')
+module.exports = wrappy(once)
+
+once.proto = once(function () {
+  Object.defineProperty(Function.prototype, 'once', {
+    value: function () {
+      return once(this)
+    },
+    configurable: true
+  })
+})
+
+function once (fn) {
+  var f = function () {
+    if (f.called) return f.value
+    f.called = true
+    return f.value = fn.apply(this, arguments)
+  }
+  f.called = false
+  return f
+}