can now override and without throwing an error

CHANGELOG.md

@@ -22,7 +22,8 @@ Please visit [cucumber/CONTRIBUTING.md](https://github.com/cucumber/cucumber/blo
 
 ### Fixed
 
-* Gemspec has `required_ruby_version = '>= 2.1'`
+* `ParameterType` can now override `use_for_snippets` and `prefer_for_regexp_match` without throwing an error. ([@aslakhellesoy](https://github.com/aslakhellesoy))
+* Gemspec has `required_ruby_version = '>= 2.1'` ([@aslakhellesoy](https://github.com/aslakhellesoy))
 
 ### Improved
 

features/docs/writing_support_code/parameter_types.feature

@@ -51,3 +51,19 @@ Feature: Parameter Types
       """
     When I run `cucumber features/foo.feature`
     Then it should pass
+
+    Scenario: Parameter type defined with ParameterType method
+      If your parameter type's `regexp` is very general, you can tell
+      Cucumber not to suggest its use in snippets:
+
+    Given a file named "features/support/parameter_types.rb" with:
+      """
+      ParameterType(
+        name: 'person',
+        regexp: /[A-Z]\w+/,
+        transformer: -> (name) { Person.new(name) },
+        use_for_snippets: false
+      )
+      """
+    When I run `cucumber features/foo.feature`
+    Then it should pass

lib/cucumber/glue/dsl.rb

@@ -88,8 +88,8 @@ def AfterStep(*tag_expressions, &proc)
 
       def ParameterType(options)
         type = options[:type] || Object
-        use_for_snippets = true if options[:use_for_snippets].nil?
-        prefer_for_regexp_match = false if options[:prefer_for_regexp_match].nil?
+        use_for_snippets = if_nil(options[:use_for_snippets], true)
+        prefer_for_regexp_match = if_nil(options[:prefer_for_regexp_match], false)
 
         parameter_type = CucumberExpressions::ParameterType.new(
           options[:name],
@@ -102,6 +102,10 @@ def ParameterType(options)
         Dsl.define_parameter_type(parameter_type)
       end
 
+      def if_nil(value, default)
+        value.nil? ? default : value
+      end
+
       # Registers a proc that will run after Cucumber is configured. You can register as
       # as you want (typically from ruby scripts under <tt>support/hooks.rb</tt>).
       def AfterConfiguration(&proc)