lib/nanoc/base/contracts_support.rb in nanoc-4.9.4 vs lib/nanoc/base/contracts_support.rb in nanoc-4.9.5

@@ -29,10 +29,11 @@
       Func        = Ignorer.instance
       RespondTo   = Ignorer.instance
       Named       = Ignorer.instance
       IterOf      = Ignorer.instance
       HashOf      = Ignorer.instance
+      AbsolutePathString = Ignorer.instance
 
       def contract(*args); end
     end
 
     module EnabledContracts
@@ -68,18 +69,25 @@
         def inspect
           "#{self.class}(#{@contract})"
         end
       end
 
+      class AbsolutePathString < AbstractContract
+        def self.valid?(val)
+          val.is_a?(String) && Pathname.new(val).absolute?
+        end
+      end
+
       def contract(*args)
         Contract(*args)
       end
     end
 
     def self.setup_once
       @_contracts_support__setup ||= false
       return @_contracts_support__should_enable if @_contracts_support__setup
+
       @_contracts_support__setup = true
 
       contracts_loadable =
         begin
           require 'contracts'
@@ -92,9 +100,10 @@
 
       if @_contracts_support__should_enable
         # FIXME: ugly
         ::Contracts.const_set('Named', EnabledContracts::Named)
         ::Contracts.const_set('IterOf', EnabledContracts::IterOf)
+        ::Contracts.const_set('AbsolutePathString', EnabledContracts::AbsolutePathString)
       end
 
       @_contracts_support__should_enable
     end