1 files changed, 56 insertions, 0 deletions
diff --git a/node_modules/when/lib/format.js b/node_modules/when/lib/format.js
new file mode 100644
index 000000000..f56c81bc0
--- /dev/null
+++ b/node_modules/when/lib/format.js
@@ -0,0 +1,56 @@
+/** @license MIT License (c) copyright 2010-2014 original author or authors */
+/** @author Brian Cavalier */
+/** @author John Hann */
+
+(function(define) { 'use strict';
+define(function() {
+
+	return {
+		formatError: formatError,
+		formatObject: formatObject,
+		tryStringify: tryStringify
+	};
+
+	/**
+	 * Format an error into a string.  If e is an Error and has a stack property,
+	 * it's returned.  Otherwise, e is formatted using formatObject, with a
+	 * warning added about e not being a proper Error.
+	 * @param {*} e
+	 * @returns {String} formatted string, suitable for output to developers
+	 */
+	function formatError(e) {
+		var s = typeof e === 'object' && e !== null && (e.stack || e.message) ? e.stack || e.message : formatObject(e);
+		return e instanceof Error ? s : s + ' (WARNING: non-Error used)';
+	}
+
+	/**
+	 * Format an object, detecting "plain" objects and running them through
+	 * JSON.stringify if possible.
+	 * @param {Object} o
+	 * @returns {string}
+	 */
+	function formatObject(o) {
+		var s = String(o);
+		if(s === '[object Object]' && typeof JSON !== 'undefined') {
+			s = tryStringify(o, s);
+		}
+		return s;
+	}
+
+	/**
+	 * Try to return the result of JSON.stringify(x).  If that fails, return
+	 * defaultValue
+	 * @param {*} x
+	 * @param {*} defaultValue
+	 * @returns {String|*} JSON.stringify(x) or defaultValue
+	 */
+	function tryStringify(x, defaultValue) {
+		try {
+			return JSON.stringify(x);
+		} catch(e) {
+			return defaultValue;
+		}
+	}
+
+});
+}(typeof define === 'function' && define.amd ? define : function(factory) { module.exports = factory(); }));