avoid unintended conflict of namespace, fixes #64

sinatra · Jun 9, 2017 · d3c9531 · d3c9531
1 parent 0ba0411
commit d3c9531
Showing 1 changed file with 6 additions and 4 deletions.
diff --git a/mustermann/lib/mustermann/error.rb b/mustermann/lib/mustermann/error.rb
@@ -1,7 +1,9 @@
 # frozen_string_literal: true
 module Mustermann
-  Error        ||= Class.new(StandardError) # Raised if anything goes wrong while generating a {Pattern}.
-  CompileError ||= Class.new(Error)         # Raised if anything goes wrong while compiling a {Pattern}.
-  ParseError   ||= Class.new(Error)         # Raised if anything goes wrong while parsing a {Pattern}.
-  ExpandError  ||= Class.new(Error)         # Raised if anything goes wrong while expanding a {Pattern}.
+  unless defined?(Mustermann::Error)
+    Error        = Class.new(StandardError) # Raised if anything goes wrong while generating a {Pattern}.
+    CompileError = Class.new(Error)         # Raised if anything goes wrong while compiling a {Pattern}.
+    ParseError   = Class.new(Error)         # Raised if anything goes wrong while parsing a {Pattern}.
+    ExpandError  = Class.new(Error)         # Raised if anything goes wrong while expanding a {Pattern}.
+  end
 end