1 files changed, 16 insertions, 30 deletions
diff --git a/activesupport/lib/active_support/core_ext/load_error.rb b/activesupport/lib/active_support/core_ext/load_error.rb
index cc6287b100..615ebe9588 100644
--- a/activesupport/lib/active_support/core_ext/load_error.rb
+++ b/activesupport/lib/active_support/core_ext/load_error.rb
@@ -1,36 +1,22 @@
-class MissingSourceFile < LoadError #:nodoc:
-  attr_reader :path
-  def initialize(message, path)
-    super(message)
-    @path = path
-  end
-
-  def is_missing?(path)
-    path.gsub(/\.rb$/, '') == self.path.gsub(/\.rb$/, '')
-  end
+class LoadError
+  REGEXPS = [
+    /^no such file to load -- (.+)$/i,
+    /^Missing \w+ (?:file\s*)?([^\s]+.rb)$/i,
+    /^Missing API definition file in (.+)$/i,
+  ]
 
-  def self.from_message(message)
-    REGEXPS.each do |regexp, capture|
-      match = regexp.match(message)
-      return MissingSourceFile.new(message, match[capture]) unless match.nil?
+  def path
+    @path ||= begin
+      REGEXPS.find do |regex|
+        message =~ regex
+      end
+      $1
     end
-    nil
   end
 
-  REGEXPS = [
-    [/^no such file to load -- (.+)$/i, 1],
-    [/^Missing \w+ (file\s*)?([^\s]+.rb)$/i, 2],
-    [/^Missing API definition file in (.+)$/i, 1],
-    [/win32/, 0]
-  ] unless defined?(REGEXPS)
-end
-
-class LoadError
-  def self.new(*args)
-    if self == LoadError
-      MissingSourceFile.from_message(args.first)
-    else
-      super
-    end
+  def is_missing?(location)
+    location.sub(/\.rb$/, '') == path.sub(/\.rb$/, '')
   end
 end
+
+MissingSourceFile = LoadError
+\ No newline at end of file