From 003861d2fdb37b83e1d0939d49b70fbc67766997 Mon Sep 17 00:00:00 2001
From: Ken Sheedlo
Date: Fri, 7 Jun 2013 18:24:30 -0700
Subject: chore(minErr): replace ngError with minErr

---
 src/minErr.js | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 src/minErr.js

(limited to 'src/minErr.js')

diff --git a/src/minErr.js b/src/minErr.js
new file mode 100644
index 00000000..b6c447ca
--- /dev/null
+++ b/src/minErr.js
@@ -0,0 +1,57 @@
+'use strict';
+
+/**
+ * @description
+ *
+ * This object provides a utility for producing rich Error messages within 
+ * Angular. It can be called as follows:
+ *
+ * var exampleMinErr = minErr('example');
+ * throw exampleMinErr('one', 'This {0} is {1}', foo, bar);
+ *
+ * The above creates an instance of minErr in the example namespace. The
+ * resulting error will have a namespaced error code of example.one.  The
+ * resulting error will replace {0} with the value of foo, and {1} with the
+ * value of bar. The object is not restricted in the number of arguments it can
+ * take.
+ *
+ * If fewer arguments are specified than necessary for interpolation, the extra
+ * interpolation markers will be preserved in the final string.
+ *
+ * Since data will be parsed statically during a build step, some restrictions
+ * are applied with respect to how minErr instances are created and called.
+ * Instances should have names of the form namespaceMinErr for a minErr created
+ * using minErr('namespace') . Error codes, namespaces and template strings
+ * should all be static strings, not variables or general expressions.
+ *
+ * @param {string} module The namespace to use for the new minErr instance.
+ * @returns {function(string, string, ...): Error} instance
+ */
+
+function minErr(module) {
+  return function () {
+    var prefix = '[' + (module ? module + ':' : '') + arguments[0] + '] ',
+      template = arguments[1],
+      templateArgs = arguments,
+      message;
+    
+    message = prefix + template.replace(/\{\d+\}/g, function (match) {
+      var index = +match.slice(1, -1), arg;
+
+      if (index + 2 < templateArgs.length) {
+        arg = templateArgs[index + 2];
+        if (isFunction(arg)) {
+          return arg.toString().replace(/ \{[\s\S]*$/, '');
+        } else if (isUndefined(arg)) {
+          return 'undefined';
+        } else if (!isString(arg)) {
+          return toJson(arg);
+        }
+        return arg;
+      }
+      return match;
+    });
+
+    return new Error(message);
+  };
+}
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