1 files changed, 87 insertions, 0 deletions
diff --git a/node_modules/makeerror/lib/makeerror.js b/node_modules/makeerror/lib/makeerror.js
new file mode 100644
index 0000000..9dd6d1f
--- /dev/null
+++ b/node_modules/makeerror/lib/makeerror.js
@@ -0,0 +1,87 @@
+var tmpl = require('tmpl')
+
+module.exports = makeError
+
+function BaseError() {}
+BaseError.prototype = new Error()
+BaseError.prototype.toString = function() {
+  return this.message
+}
+
+
+/**
+ * Makes an Error function with the signature:
+ *
+ *   function(message, data)
+ *
+ * You'll typically do something like:
+ *
+ *   var UnknownFileTypeError = makeError(
+ *     'UnknownFileTypeError',
+ *     'The specified type is not known.'
+ *   )
+ *   var er = UnknownFileTypeError()
+ *
+ * `er` will have a prototype chain that ensures:
+ *
+ *   er instanceof Error
+ *   er instanceof UnknownFileTypeError
+ *
+ * You can also do `var er = new UnknownFileTypeError()` if you really like the
+ * `new` keyword.
+ *
+ * @param String  The name of the error.
+ * @param String  The default message string.
+ * @param Object  The default data object, merged with per instance data.
+ */
+function makeError(name, defaultMessage, defaultData) {
+  defaultMessage = tmpl(defaultMessage || '')
+  defaultData = defaultData || {}
+  if (defaultData.proto && !(defaultData.proto instanceof BaseError))
+    throw new Error('The custom "proto" must be an Error created via makeError')
+
+  var CustomError = function(message, data) {
+    if (!(this instanceof CustomError)) return new CustomError(message, data)
+
+    if (typeof message !== 'string' && !data) {
+      data = message
+      message = null
+    }
+
+    this.name = name
+    this.data = data || defaultData
+
+    if (typeof message === 'string') {
+      this.message = tmpl(message, this.data)
+    } else {
+      this.message = defaultMessage(this.data)
+    }
+
+    var er = new Error()
+    this.stack = er.stack
+    if (this.stack) {
+      // remove TWO stack level:
+      if (typeof Components !== 'undefined') {
+        // Mozilla:
+        this.stack = this.stack.substring(this.stack.indexOf('\n') + 2)
+      } else if (typeof chrome !== 'undefined' || typeof process !== 'undefined') {
+        // Google Chrome/Node.js:
+        this.stack = this.stack.replace(/\n[^\n]*/, '')
+        this.stack = this.stack.replace(/\n[^\n]*/, '')
+        this.stack = (
+          this.name +
+          (this.message ? (': ' + this.message) : '') +
+          this.stack.substring(5)
+        )
+      }
+    }
+
+    if ('fileName' in er) this.fileName = er.fileName
+    if ('lineNumber' in er) this.lineNumber = er.lineNumber
+  }
+
+  CustomError.prototype = defaultData.proto || new BaseError()
+  delete defaultData.proto
+
+  return CustomError
+}